:root {
            /* General Variable Defaults */
            --primary-color: #3b82f6;
            --primary-hover: #2563eb;
            --success-color: #10b981;
            --danger-color: #ef4444;
            --card-bg-rgb: 255, 255, 255;
            --text-color: #0f172a;
            --text-muted: #64748b;
            --glass-blur: 12px;
            --glass-opacity: 0.8;
            
            /* Theme overrides */
            --bg-overlay-opacity: 0.6;

            /* Settings Drawer Defaults (Light Mode Only) */
            --drawer-bg: #ffffff;
            --drawer-text: #0f172a;
            --drawer-text-muted: #64748b;
            --drawer-border: rgba(15, 23, 42, 0.08);
            --input-bg: rgba(15, 23, 42, 0.04);
            --input-border: rgba(15, 23, 42, 0.1);
            --theme-btn-active-bg: rgba(15, 23, 42, 0.08);
        }

        /* Accessible Visually Hidden Utility for SEO Headings */
        .visually-hidden {
            position: absolute !important;
            width: 1px !important;
            height: 1px !important;
            padding: 0 !important;
            margin: -1px !important;
            overflow: hidden !important;
            clip: rect(0, 0, 0, 0) !important;
            white-space: nowrap !important;
            border: 0 !important;
        }

        /* Wallpaper Theme-Based Header Styling variables */
        html[data-wallpaper-theme="dark"] {
            --header-text: #f8fafc;
            --header-text-muted: #cbd5e1;
            --header-pill-bg: rgba(15, 23, 42, 0.45);
            --header-pill-border: rgba(255, 255, 255, 0.08);
            --header-btn-outline-border: rgba(255, 255, 255, 0.35);
            --header-btn-outline-text: #f8fafc;
            --header-btn-outline-hover-bg: #f8fafc;
            --header-btn-outline-hover-text: #0f172a;
        }

        html[data-wallpaper-theme="light"] {
            --header-text: #0f172a;
            --header-text-muted: #475569;
            --header-pill-bg: rgba(255, 255, 255, 0.5);
            --header-pill-border: rgba(15, 23, 42, 0.08);
            --header-btn-outline-border: rgba(15, 23, 42, 0.35);
            --header-btn-outline-text: #0f172a;
            --header-btn-outline-hover-bg: #0f172a;
            --header-btn-outline-hover-text: #ffffff;
        }

        /* Base Resets */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Outfit', sans-serif;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            background-color: #0f172a;
            color: var(--text-color);
            overflow-x: hidden;
            overflow-y: auto;
            min-height: 100vh;
            width: 100%;
            position: relative;
            transition: color 0.3s ease;
        }

        /* Ambient Backgrounds */
        .background-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            z-index: -2;
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            transition: background-image 0.5s ease-in-out;
        }

        .background-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            z-index: -1;
            background: rgba(15, 23, 42, var(--bg-overlay-opacity));
            transition: background 0.3s ease;
        }

        /* Header UI */
        .timer-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 40px;
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1060;
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .brand-lockup {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #0f172a;
            background: rgba(255, 255, 255, 0.58);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border: 1px solid rgba(255, 255, 255, 0.62);
            border-radius: 999px;
            padding: 6px 18px 6px 8px;
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.65);
            transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
        }

        .brand-logo-container {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.72);
            border: 1px solid rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(12px) saturate(140%);
            -webkit-backdrop-filter: blur(12px) saturate(140%);
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
            padding: 6px;
        }

        .brand-logo {
            height: 100%;
            width: 100%;
            object-fit: contain;
        }

        .brand-wordmark {
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            color: inherit;
        }

        /* Account Menu */
        .account-menu {
            position: relative;
        }

        .account-menu[open] .account-chevron {
            transform: rotate(180deg);
        }

        .account-trigger {
            list-style: none;
            cursor: pointer;
            user-select: none;
        }

        .account-trigger::-webkit-details-marker {
            display: none;
        }

        .account-pill {
            display: grid;
            grid-template-columns: auto minmax(0, 1fr) auto;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.58);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border: 1px solid rgba(255, 255, 255, 0.62);
            border-radius: 999px;
            padding: 6px 10px 6px 6px;
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.65);
            min-width: 190px;
            color: #0f172a;
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
        }

        .account-avatar {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #ffffff;
            font-size: 13px;
            font-weight: 800;
            overflow: hidden;
        }

        .account-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .account-avatar span {
            font-size: 17px !important;
            color: #ffffff;
        }

        .account-info {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            min-width: 0;
        }

        .account-label {
            font-size: 11px;
            font-weight: 500;
            color: #64748b;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .account-name {
            font-size: 13px;
            font-weight: 700;
            color: #0f172a;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .account-chevron {
            font-size: 18px !important;
            color: #64748b;
            transition: transform 0.2s ease;
        }

        .account-dropdown {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: min(360px, calc(100vw - 32px));
            background: rgba(255, 255, 255, 0.72);
            color: #0f172a;
            border: 1px solid rgba(255, 255, 255, 0.62);
            border-radius: 16px;
            box-shadow: 0 22px 46px rgba(15, 23, 42, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.65);
            backdrop-filter: blur(22px) saturate(150%);
            -webkit-backdrop-filter: blur(22px) saturate(150%);
            padding: 18px;
            z-index: 99999 !important;
            pointer-events: auto !important;
        }

        .account-dropdown::before {
            content: "";
            position: absolute;
            top: -6px;
            right: 24px;
            width: 12px;
            height: 12px;
            background: rgba(255, 255, 255, 0.72);
            border-left: 1px solid rgba(255, 255, 255, 0.62);
            border-top: 1px solid rgba(255, 255, 255, 0.62);
            transform: rotate(45deg);
        }

        .account-dropdown-head {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(15, 23, 42, 0.08);
        }

        .account-dropdown-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(59, 130, 246, 0.1);
            color: #2563eb;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
        }

        .account-dropdown-icon span {
            font-size: 23px !important;
        }

        .account-dropdown-title {
            margin: 0;
            color: #0f172a;
            font-size: 15px;
            font-weight: 800;
        }

        .account-dropdown-copy {
            margin: 4px 0 0 0;
            color: #64748b;
            font-size: 13px;
            line-height: 1.45;
        }

        .account-detail-list {
            display: grid;
            gap: 8px;
            margin: 14px 0;
        }

        .account-detail-item {
            display: grid;
            grid-template-columns: 28px minmax(0, 1fr);
            gap: 10px;
            align-items: center;
            color: #334155;
            font-size: 13px;
            font-weight: 600;
        }

        .account-detail-item p {
            margin: 0;
            line-height: 1.35;
        }

        .account-detail-item span {
            width: 28px;
            height: 28px;
            border-radius: 9px;
            background: rgba(59, 130, 246, 0.09);
            color: #2563eb;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px !important;
        }

        .account-actions {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        .account-actions.single {
            grid-template-columns: 1fr;
        }

        .account-btn {
            min-height: 42px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 800;
            text-decoration: none;
            border: 1px solid transparent;
            transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
        }

        .account-btn:hover {
            transform: translateY(-1px);
        }

        .account-btn.primary {
            background: var(--primary-color);
            color: #ffffff;
            box-shadow: 0 8px 18px rgba(59, 130, 246, 0.22);
        }

        .account-btn.secondary {
            background: rgba(59, 130, 246, 0.08);
            color: var(--primary-hover);
            border-color: rgba(59, 130, 246, 0.14);
        }

        .account-btn span {
            font-size: 18px !important;
        }

        @media (max-width: 480px) {
            #fullscreenToggleBtn {
                display: none;
            }

            .account-pill {
                min-width: 0;
                padding: 5px;
                grid-template-columns: auto auto;
            }
            .account-info { display: none; }
            .account-dropdown {
                right: -4px;
            }
            .account-actions {
                grid-template-columns: 1fr;
            }
        }

        /* Main Workspace Container */
        .workspace {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            width: 100%;
            padding: 90px 20px 40px 20px;
        }

        /* Glassmorphic Timer Card */
        .timer-card {
            background: rgba(var(--card-bg-rgb), var(--glass-opacity));
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border: 1.5px solid rgba(255, 255, 255, 0.08);
            border-radius: 28px;
            padding: 35px;
            width: 480px;
            max-width: 100%;
            text-align: center;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
            position: relative;
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
            z-index: 2;
        }

        /* Flow Mode Selector */
        .flow-selector-container {
            display: flex;
            justify-content: center;
            margin-bottom: 20px;
        }

        .flow-selector {
            display: inline-flex;
            background: rgba(0, 0, 0, 0.05);
            border-radius: 999px;
            padding: 4px;
            gap: 4px;
        }

        .flow-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .flow-btn:hover {
            color: var(--text-color);
        }

        .flow-btn.active {
            background: var(--primary-color);
            color: #ffffff;
            box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
        }

        /* Tab Selectors */
        .mode-selector {
            display: flex;
            background: rgba(0, 0, 0, 0.15);
            border-radius: 14px;
            padding: 4px;
            margin-bottom: 25px;
            gap: 2px;
        }

        .mode-btn {
            flex: 1;
            background: transparent;
            border: none;
            color: var(--text-muted);
            padding: 10px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .mode-btn.active {
            background: #ffffff;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
            color: #3b82f6;
        }

        .mode-btn.active.mode-short-break {
            color: #10b981;
        }

        .mode-btn.active.mode-long-break {
            color: #f59e0b;
        }

        /* Circular Progress Area */
        .progress-container {
            position: relative;
            width: 280px;
            height: 280px;
            margin: 0 auto 30px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .progress-svg {
            transform: rotate(-90deg);
            width: 100%;
            height: 100%;
        }

        .progress-ring-bg {
            fill: transparent;
            stroke: rgba(0, 0, 0, 0.05);
            stroke-width: 8;
        }

        .progress-ring-circle {
            fill: transparent;
            stroke: var(--primary-color);
            stroke-width: 8;
            stroke-linecap: round;
            transition: stroke-dashoffset 0.1s linear, stroke 0.3s ease;
        }

        .progress-ring-bg.blue-stroke {
            stroke: #3b82f6 !important;
        }
        .progress-ring-circle.green-stroke {
            stroke: #10b981 !important;
        }

        .timer-info-box {
            position: absolute;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 80%;
            height: 80%;
            border-radius: 50%;
        }

        .timer-clock {
            font-size: 44px;
            font-weight: 500;
            letter-spacing: 0.5px;
            line-height: 1;
            color: var(--text-color);
            font-variant-numeric: tabular-nums;
        }

        .session-status {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--text-muted);
            margin-top: 8px;
        }

        /* Controls */
        .controls-row {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            margin-bottom: 25px;
        }

        .btn-action {
            background: transparent;
            border: none;
            color: var(--text-color);
            cursor: pointer;
            transition: transform 0.15s ease, opacity 0.2s ease;
        }

        .btn-action:hover {
            transform: scale(1.05);
        }

        .btn-action:active {
            transform: scale(0.95);
        }

        .btn-play-pause {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: #ffffff;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
            border: none;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .btn-play-pause:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 12px 24px rgba(59, 130, 246, 0.4);
        }

        .btn-play-pause.mode-short-break {
            background-color: var(--success-color);
            box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
        }

        .btn-play-pause.mode-short-break:hover {
            background-color: #059669;
            box-shadow: 0 12px 24px rgba(16, 185, 129, 0.4);
        }

        .btn-play-pause.mode-long-break {
            background-color: #f59e0b;
            box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
        }

        .btn-play-pause.mode-long-break:hover {
            background-color: #d97706;
            box-shadow: 0 12px 24px rgba(245, 158, 11, 0.4);
        }

        .btn-play-pause span {
            font-size: 34px !important;
            font-variation-settings: 'FILL' 1;
        }

        .btn-reset, .btn-skip, .btn-end {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.05);
            display: flex;
            justify-content: center;
            align-items: center;
            border: 1px solid rgba(0, 0, 0, 0.02);
        }

        .btn-reset span, .btn-skip span, .btn-end span {
            font-size: 20px !important;
        }

        .btn-reset:hover {
            background: rgba(239, 68, 68, 0.1) !important;
            border-color: rgba(239, 68, 68, 0.25) !important;
            color: #dc2626 !important;
        }

        .btn-end, .btn-break {
            color: var(--success-color);
        }

        .btn-end:hover, .btn-break:hover {
            background: rgba(16, 185, 129, 0.15) !important;
            border-color: rgba(16, 185, 129, 0.4) !important;
        }

        /* Break Timer Container Style */
        .break-timer-container {
            display: none;
            margin: 1.5rem 0 0.5rem 0;
            width: 100%;
        }

        .break-timer-bar {
            background-color: #10b981; /* Default short break: success green */
            color: #fff;
            border-radius: 15px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
            transition: background-color 0.3s ease;
            width: 100%;
            box-sizing: border-box;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .break-timer-bar.break-warning {
            background-color: #f59e0b; /* Long break: warning orange */
            color: #fff;
        }

        .break-timer-bar.break-danger {
            background-color: #ef4444; /* Exceeded break duration */
            color: #fff;
        }

        .break-timer-display {
            font-weight: 700;
            font-size: 1.25rem;
            color: white;
            min-width: 70px;
            text-align: right;
            font-variant-numeric: tabular-nums;
        }

        .break-icon {
            font-size: 1.5rem;
            margin-right: 12px;
            color: white;
        }

        .break-content {
            flex-grow: 1;
            text-align: left;
        }

        .break-title {
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 1px;
            color: white;
        }

        .break-subtitle {
            font-size: 0.8rem;
            opacity: 0.9;
            color: rgba(255, 255, 255, 0.9);
        }

        #endBreakBtn {
            background-color: rgba(255, 255, 255, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: white;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            transition: all 0.2s ease;
            cursor: pointer;
            outline: none;
            white-space: nowrap;
        }

        #endBreakBtn:hover {
            background-color: rgba(255, 255, 255, 0.3);
            border-color: rgba(255, 255, 255, 0.5);
        }

        /* Overtime clock style */
        .timer-clock.text-overtime {
            color: #0f79f3 !important;
            animation: pulse-subtle 2s infinite;
        }

        @keyframes pulse-subtle {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.95;
            }
        }

        /* Goal & Tracking Indicator */
        .goals-progress-box {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 8px 24px;
            background: rgba(15, 23, 42, 0.55);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 15;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .goals-header {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }

        .goal-label {
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .goal-val {
            color: rgba(255, 255, 255, 0.85);
        }

        .progress-bar-container {
            flex: 1;
            height: 4px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            overflow: hidden;
        }

        .progress-bar-fill {
            height: 100%;
            width: 0%;
            background-color: var(--success-color);
            border-radius: 999px;
            transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Floating Controls & Sidebar button */
        .floating-controls {
            position: fixed;
            bottom: max(30px, env(safe-area-inset-bottom));
            right: max(40px, env(safe-area-inset-right));
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 20;
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .btn-floating {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(var(--card-bg-rgb), var(--glass-opacity));
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-color);
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
            transition: transform 0.2s ease, background 0.2s ease;
        }

        .btn-floating:hover {
            transform: translateY(-2px);
        }

        .btn-floating span {
            font-size: 22px !important;
        }

        /* Sliding Settings Drawer Styles */
        .settings-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: 400px;
            max-width: 100%;
            height: 100vh;
            height: 100dvh;
            background: var(--drawer-bg);
            color: var(--drawer-text);
            z-index: 1070;
            transform: translateX(100%);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, color 0.3s ease;
            box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
            display: flex;
            flex-direction: column;
        }

        .settings-drawer.open {
            transform: translateX(0);
        }

        .drawer-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 25px;
            border-bottom: 1px solid var(--drawer-border);
            transition: border-color 0.3s ease;
        }

        .drawer-title {
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .close-btn {
            background: transparent;
            border: none;
            color: var(--drawer-text-muted);
            cursor: pointer;
            transition: color 0.15s ease;
        }

        .close-btn:hover {
            color: var(--drawer-text);
        }

        .drawer-body {
            flex: 1;
            overflow-y: auto;
            padding: 20px;
            background-color: #f8fafc;
            /* Hide scrollbar defaults */
            scrollbar-width: thin;
            scrollbar-color: var(--input-border) transparent;
            transition: scrollbar-color 0.3s ease;
        }

        .drawer-body::-webkit-scrollbar {
            width: 6px;
        }

        .drawer-body::-webkit-scrollbar-thumb {
            background: rgba(255,255,255,0.15);
            border-radius: 10px;
        }

        .settings-section {
            background: #ffffff;
            border: 1px solid rgba(15, 23, 42, 0.08);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
        }

        .section-title {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: #475569;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid rgba(15, 23, 42, 0.06);
            padding-bottom: 12px;
        }

        .section-title span.material-symbols-outlined {
            color: var(--primary-color);
            font-size: 18px !important;
        }

        .settings-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .setting-item {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .setting-item.toggle-item {
            flex-direction: row;
            justify-content: space-between;
            align-items: center;
        }

        .setting-text {
            display: flex;
            flex-direction: column;
        }

        .setting-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--drawer-text);
            transition: color 0.3s ease;
        }

        .setting-desc {
            font-size: 12px;
            color: var(--drawer-text-muted);
            transition: color 0.3s ease;
        }

        .form-control-custom {
            background: var(--input-bg);
            border: 1px solid var(--input-border);
            color: var(--drawer-text);
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 14px;
            outline: none;
            width: 100%;
            font-family: inherit;
            transition: border-color 0.2s ease, background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
        }

        .form-control-custom:focus {
            border-color: #3b82f6;
        }

        .form-control-custom.is-invalid {
            border-color: #ef4444 !important;
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
        }

        .invalid-feedback-custom {
            display: none;
            color: #ef4444;
            font-size: 12px;
            margin-top: 4px;
            font-weight: 500;
        }

        .form-control-custom.is-invalid + .invalid-feedback-custom {
            display: block;
        }

        /* Swtich Toggle styling */
        .switch {
            position: relative;
            display: inline-block;
            width: 44px;
            height: 24px;
            flex-shrink: 0;
        }

        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--input-border);
            transition: .3s;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 18px;
            width: 18px;
            left: 3px;
            bottom: 3px;
            background-color: white;
            transition: .3s;
        }

        input:checked + .slider {
            background-color: #3b82f6;
        }

        input:checked + .slider:before {
            transform: translateX(20px);
        }

        .slider.round {
            border-radius: 24px;
        }

        .slider.round:before {
            border-radius: 50%;
        }

        /* Theme Picker Selector */
        .theme-picker {
            display: flex;
            background: var(--input-bg);
            border-radius: 10px;
            padding: 3px;
            gap: 2px;
            transition: background-color 0.3s ease;
        }

        .theme-btn {
            flex: 1;
            background: transparent;
            border: none;
            color: var(--drawer-text-muted);
            padding: 8px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            transition: all 0.2s ease, color 0.3s ease;
        }

        .theme-btn.active {
            background: var(--theme-btn-active-bg);
            color: var(--drawer-text);
        }

        .theme-btn span {
            font-size: 16px !important;
        }

        /* Wallpaper Grid */
        .wallpaper-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
            margin-top: 4px;
        }

        .wallpaper-item {
            aspect-ratio: 1;
            border-radius: 8px;
            cursor: pointer;
            border: 2px solid transparent;
            transition: border-color 0.2s ease, transform 0.1s ease;
            background-size: cover;
            background-position: center;
        }

        .wallpaper-item:hover {
            transform: scale(1.05);
        }

        .wallpaper-item.active {
            border-color: #3b82f6;
            box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
        }

        /* Slider elements */
        .range-slider {
            -webkit-appearance: none;
            width: 100%;
            height: 6px;
            background: var(--input-border);
            border-radius: 5px;
            outline: none;
        }

        .range-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: #3b82f6;
            cursor: pointer;
            transition: transform 0.1s ease;
        }

        .range-slider::-webkit-slider-thumb:hover {
            transform: scale(1.15);
        }

        /* Reset Button Styling */
        .btn-danger-custom {
            flex: 1;
            background: rgba(239, 68, 68, 0.15);
            border: 1px solid rgba(239, 68, 68, 0.3);
            color: #ef4444;
            padding: 12px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: background 0.2s ease, border-color 0.2s ease;
        }

        .btn-danger-custom:hover {
            background: rgba(239, 68, 68, 0.25);
            border-color: rgba(239, 68, 68, 0.5);
        }

        .settings-secondary-actions {
            display: flex;
            gap: 12px;
            width: 100%;
        }

        .drawer-footer {
            padding: 16px 20px;
            padding-bottom: max(16px, env(safe-area-inset-bottom));
            background: var(--drawer-bg, #ffffff);
            border-top: 1px solid var(--drawer-border);
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 20;
            position: sticky;
            bottom: 0;
            flex-shrink: 0;
        }

        .btn-save-custom {
            width: 100%;
            background: var(--primary-color);
            border: 1px solid rgba(59, 130, 246, 0.2);
            color: #ffffff;
            padding: 12px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: background 0.2s ease, transform 0.1s ease;
        }

        .btn-save-custom:hover {
            background: var(--primary-hover);
        }

        .btn-cancel-custom {
            flex: 1;
            background: rgba(15, 23, 42, 0.05);
            border: 1px solid rgba(15, 23, 42, 0.08);
            color: #475569;
            padding: 12px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: background 0.2s ease;
        }

        .btn-cancel-custom:hover {
            background: rgba(15, 23, 42, 0.08);
            color: #0f172a;
        }

        /* Backdrop overlay */
        .drawer-backdrop {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            height: 100dvh;
            background: rgba(0, 0, 0, 0.15);
            backdrop-filter: blur(0px);
            -webkit-backdrop-filter: blur(0px);
            z-index: 1065;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease, backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease;
        }

        .drawer-backdrop.show {
            opacity: 1;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            pointer-events: auto;
        }



        /* Fullscreen overrides */
        :-webkit-full-screen .timer-header,
        :-moz-full-screen .timer-header {
            padding: 40px;
        }

        /* Toastr Custom Styling for aesthetic match */
        #toast-container.toast-top-center {
            top: 24px !important;
            left: 50% !important;
            transform: translateX(-50%) !important;
            right: auto !important;
            width: auto !important;
            max-width: 100% !important;
        }
        #toast-container.toast-top-center > div {
            width: 380px !important;
            max-width: 90vw !important;
            margin: 0 auto 12px auto !important;
        }

        @keyframes toast-pop-out {
            0% {
                transform: scale(0.9) translateY(-12px);
                opacity: 0;
            }
            100% {
                transform: scale(1) translateY(0);
                opacity: 0.98;
            }
        }

        #toast-container > div {
            animation: toast-pop-out 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
            opacity: 0.98 !important;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05) !important;
            border-radius: 12px !important;
            font-family: 'Outfit', sans-serif !important;
            font-size: 14px !important;
            font-weight: 500 !important;
            padding: 16px 20px 16px 50px !important;
            background-image: none !important; /* remove default background icon */
            position: relative !important;
            border-width: 1px !important;
            border-style: solid !important;
        }

        #toast-container > .toast-warning {
            background-color: #fffbeb !important;
            color: #b45309 !important;
            border-color: #fde68a !important;
        }

        #toast-container > .toast-warning::before {
            content: "\F33A" !important; /* Bootstrap icon: bi-exclamation-triangle-fill */
            font-family: 'bootstrap-icons' !important;
            position: absolute !important;
            left: 18px !important;
            top: 50% !important;
            transform: translateY(-50%) !important;
            font-size: 18px !important;
            color: #d97706 !important;
        }

        #toast-container > .toast-success {
            background-color: #f0fdf4 !important;
            color: #15803d !important;
            border-color: #bbf7d0 !important;
        }

        #toast-container > .toast-success::before {
            content: "\F26B" !important; /* bi-check-circle-fill */
            font-family: 'bootstrap-icons' !important;
            position: absolute !important;
            left: 18px !important;
            top: 50% !important;
            transform: translateY(-50%) !important;
            font-size: 18px !important;
            color: #16a34a !important;
        }

        #toast-container > .toast-error {
            background-color: #fef2f2 !important;
            color: #b91c1c !important;
            border-color: #fecaca !important;
        }

        #toast-container > .toast-error::before {
            content: "\F5C7" !important; /* bi-x-circle-fill */
            font-family: 'bootstrap-icons' !important;
            position: absolute !important;
            left: 18px !important;
            top: 50% !important;
            transform: translateY(-50%) !important;
            font-size: 18px !important;
            color: #dc2626 !important;
        }

        #toast-container > .toast-info {
            background-color: #eff6ff !important;
            color: #1d4ed8 !important;
            border-color: #bfdbfe !important;
        }

        #toast-container > .toast-info::before {
            content: "\F431" !important; /* bi-info-circle-fill */
            font-family: 'bootstrap-icons' !important;
            position: absolute !important;
            left: 18px !important;
            top: 50% !important;
            transform: translateY(-50%) !important;
            font-size: 18px !important;
            color: #3b82f6 !important;
        }

        /* Close button custom styling */
        #toast-container .toast-close-button {
            color: currentColor !important;
            font-size: 20px !important;
            font-weight: bold !important;
            top: 50% !important;
            right: 15px !important;
            transform: translateY(-50%) !important;
            position: absolute !important;
            opacity: 0.5 !important;
            transition: opacity 0.2s ease !important;
            z-index: 999 !important;
            pointer-events: auto !important;
        }

        #toast-container .toast-close-button:hover {
            opacity: 1 !important;
        }

        /* Responsive UI Layout overrides */
        @media (max-width: 768px) {
            .timer-header {
                padding: 15px 20px;
            }
            .brand-wordmark {
                font-size: 18px;
            }
            .brand-logo {
                height: 32px;
                width: 32px;
            }
            .timer-card {
                padding: 25px 20px;
                width: 100%;
                border-radius: 20px;
            }
            .progress-container {
                width: 240px;
                height: 240px;
                margin-bottom: 20px;
            }
            .timer-clock {
                font-size: 44px;
            }
            .floating-controls {
                bottom: max(20px, env(safe-area-inset-bottom));
                right: max(20px, env(safe-area-inset-right));
            }
            .nav-links-desktop {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-actions {
                padding: 8px;
                border-radius: 50%;
                width: 40px;
                height: 40px;
                justify-content: center;
                align-items: center;
            }
            .mobile-dropdown-menu {
                right: 20px;
                top: 65px;
            }
        }

        /* Custom Confirmation Modal Overlay & Layout */
        .custom-confirm-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 23, 42, 0.45);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.25s ease;
        }
        
        .custom-confirm-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        .custom-confirm-card {
            background: rgba(255, 255, 255, 0.95);
            border: 1px solid rgba(15, 23, 42, 0.08);
            border-radius: 20px;
            width: 90%;
            max-width: 400px;
            padding: 32px 24px;
            text-align: center;
            box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
            transform: scale(0.95) translateY(10px);
            transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .custom-confirm-overlay.show .custom-confirm-card {
            transform: scale(1) translateY(0);
        }

        .auto-end-card {
            max-width: 440px;
        }

        /* Icon Box */
        .custom-confirm-icon-box {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px auto;
        }

        .custom-confirm-icon-box span {
            font-size: 28px;
        }

        /* Title & Message */
        .custom-confirm-title {
            font-size: 19px;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 10px;
            font-family: 'Outfit', sans-serif;
        }

        .custom-confirm-message {
            font-size: 14px;
            color: #475569;
            line-height: 1.5;
            margin-bottom: 24px;
            padding: 0 6px;
            font-family: 'Outfit', sans-serif;
        }

        /* Stats container for End Session popup */
        .session-stats-container {
            background: rgba(15, 23, 42, 0.03);
            border: 1px solid rgba(15, 23, 42, 0.06);
            border-radius: 14px;
            padding: 12px 16px;
            margin-bottom: 24px;
            text-align: left;
        }

        .session-stat-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed rgba(15, 23, 42, 0.06);
        }

        .session-stat-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        
        .session-stat-row:first-child {
            padding-top: 0;
        }

        .stat-label {
            font-size: 13px;
            color: #64748b;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .stat-label span {
            font-size: 15px;
        }

        .stat-value {
            font-size: 13px;
            color: #0f172a;
            font-weight: 600;
            max-width: 180px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .auto-end-note {
            background: rgba(59, 130, 246, 0.08);
            border: 1px solid rgba(59, 130, 246, 0.14);
            border-radius: 12px;
            color: #1d4ed8;
            font-size: 13px;
            line-height: 1.45;
            margin: -8px 0 20px 0;
            padding: 12px;
            text-align: left;
        }

        /* Actions */
        .custom-confirm-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
        }

        .custom-confirm-btn {
            flex: 1;
            padding: 11px 18px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.15s ease;
            font-family: 'Outfit', sans-serif;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }

        .custom-confirm-btn:active {
            transform: scale(0.98);
        }

        .custom-confirm-btn.btn-cancel {
            background: rgba(15, 23, 42, 0.04);
            color: #475569;
            border: 1px solid rgba(15, 23, 42, 0.06);
        }

        .custom-confirm-btn.btn-cancel:hover {
            background: rgba(15, 23, 42, 0.07);
            color: #0f172a;
        }

        /* --- Dynamic Modal Colors --- */
        .modal-primary .custom-confirm-icon-box {
            background: rgba(59, 130, 246, 0.08);
            color: #2563eb;
        }
        .modal-primary .btn-confirm {
            background: var(--primary-color, #3b82f6);
            color: #ffffff;
            box-shadow: 0 4px 10px rgba(59, 130, 246, 0.15);
        }
        .modal-primary .btn-confirm:hover {
            background: var(--primary-hover, #2563eb);
            box-shadow: 0 6px 12px rgba(59, 130, 246, 0.25);
            transform: translateY(-1px);
        }

        .modal-warning .custom-confirm-icon-box {
            background: rgba(245, 158, 11, 0.08);
            color: #d97706;
        }
        .modal-warning .btn-confirm {
            background: #d97706;
            color: #ffffff;
            box-shadow: 0 4px 10px rgba(217, 119, 6, 0.15);
        }
        .modal-warning .btn-confirm:hover {
            background: #b45309;
            box-shadow: 0 6px 12px rgba(217, 119, 6, 0.25);
            transform: translateY(-1px);
        }

        .modal-danger .custom-confirm-icon-box {
            background: rgba(239, 68, 68, 0.08);
            color: #dc2626;
        }
        .modal-danger .btn-confirm {
            background: #dc2626;
            color: #ffffff;
            box-shadow: 0 4px 10px rgba(220, 38, 38, 0.15);
        }
        .modal-danger .btn-confirm:hover {
            background: #b91c1c;
            box-shadow: 0 6px 12px rgba(220, 38, 38, 0.25);
            transform: translateY(-1px);
        }
        
        

        /* Custom Study Timer Inputs */
        .study-timer-inputs {
            display: flex;
            flex-direction: row;
            gap: 16px;
            margin-bottom: 25px;
            width: 100%;
            max-width: 410px;
            margin-left: auto;
            margin-right: auto;
            transition: opacity 0.3s ease;
        }

        .study-input-group {
            display: flex;
            flex-direction: column;
            text-align: left;
            gap: 4px;
        }

        .study-input-group:first-child {
            flex: 2.2;
        }

        .study-input-group:last-child {
            flex: 1.8;
        }

        .study-field-shell {
            position: relative;
            width: 100%;
        }

        .study-field-icon {
            position: absolute;
            left: 13px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            cursor: help;
            z-index: 1;
            font-size: 19px !important;
            pointer-events: auto;
        }

        .study-field {
            background: rgba(15, 23, 42, 0.05) !important;
            border: 1px solid rgba(15, 23, 42, 0.08) !important;
            color: var(--text-color) !important;
            padding: 10px 14px 10px 42px !important;
            border-radius: 10px !important;
            font-size: 14px !important;
            font-weight: 500 !important;
            outline: none !important;
            transition: all 0.2s ease !important;
            width: 100%;
            font-family: inherit;
        }

        .study-field:focus {
            background: rgba(15, 23, 42, 0.02) !important;
            border-color: var(--primary-color) !important;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
        }

        .study-field:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            background: rgba(15, 23, 42, 0.03) !important;
            border-color: rgba(15, 23, 42, 0.04) !important;
        }

        .study-field-shell.is-locked .study-field-icon {
            color: #94a3b8;
        }

        @media (max-width: 480px) {
            .study-timer-inputs {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* Study controls custom styling */
        .btn-notes, .btn-break {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.05);
            display: flex;
            justify-content: center;
            align-items: center;
            border: 1px solid rgba(0, 0, 0, 0.02);
            color: var(--text-color);
            transition: transform 0.15s ease, opacity 0.2s ease, background-color 0.2s ease;
        }

        .btn-notes span, .btn-break span {
            font-size: 20px !important;
        }

        .btn-notes:hover {
            background: rgba(59, 130, 246, 0.15);
            border-color: rgba(59, 130, 246, 0.3);
            color: var(--primary-color);
        }

        .btn-break:hover {
            background: rgba(16, 185, 129, 0.15);
            border-color: rgba(16, 185, 129, 0.3);
            color: var(--success-color);
        }

        .btn-break-warning {
            background-color: rgba(245, 158, 11, 0.15);
            border-color: rgba(245, 158, 11, 0.4);
            color: #d97706;
            animation: blink-warning 1.8s infinite ease-in-out;
        }

        .btn-break-warning:hover {
            background-color: rgba(245, 158, 11, 0.22) !important;
            border-color: rgba(245, 158, 11, 0.5) !important;
            color: #d97706 !important;
            box-shadow: none !important;
        }

        .btn-break-danger {
            background-color: rgba(239, 68, 68, 0.15);
            border-color: rgba(239, 68, 68, 0.4);
            color: #dc2626;
            animation: blink-danger 1.8s infinite ease-in-out;
        }

        .btn-break-danger:hover {
            background-color: rgba(239, 68, 68, 0.22) !important;
            border-color: rgba(239, 68, 68, 0.5) !important;
            color: #dc2626 !important;
            box-shadow: none !important;
        }

        @keyframes blink-warning {
            0% {
                background-color: rgba(245, 158, 11, 0.1);
                border-color: rgba(245, 158, 11, 0.25);
                box-shadow: 0 0 0 0px rgba(245, 158, 11, 0.35);
            }
            70% {
                background-color: rgba(245, 158, 11, 0.22);
                border-color: rgba(245, 158, 11, 0.55);
                box-shadow: 0 0 0 6px rgba(245, 158, 11, 0);
            }
            100% {
                background-color: rgba(245, 158, 11, 0.1);
                border-color: rgba(245, 158, 11, 0.25);
                box-shadow: 0 0 0 0px rgba(245, 158, 11, 0);
            }
        }

        @keyframes blink-danger {
            0% {
                background-color: rgba(239, 68, 68, 0.1);
                border-color: rgba(239, 68, 68, 0.25);
                box-shadow: 0 0 0 0px rgba(239, 68, 68, 0.35);
            }
            70% {
                background-color: rgba(239, 68, 68, 0.22);
                border-color: rgba(239, 68, 68, 0.55);
                box-shadow: 0 0 0 6px rgba(239, 68, 68, 0);
            }
            100% {
                background-color: rgba(239, 68, 68, 0.1);
                border-color: rgba(239, 68, 68, 0.25);
                box-shadow: 0 0 0 0px rgba(239, 68, 68, 0);
            }
        }

        /* Disabled state styling for buttons */
        .btn-notes:disabled, .btn-break:disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
            background: rgba(0, 0, 0, 0.05) !important;
            border-color: rgba(0, 0, 0, 0.02) !important;
            color: var(--text-muted) !important;
            transform: none !important;
        }

        /* Bottom Left Login Card */
        .login-promo-card {
            position: fixed;
            bottom: 24px;
            left: -380px; /* Hidden initially off-screen */
            width: 340px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
            z-index: 1000;
            transition: left 0.5s cubic-bezier(0.16, 1, 0.3, 1);
            color: #1e293b;
        }

        .login-promo-card.show {
            left: 24px;
        }

        .login-promo-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: 10px;
        }

        .login-promo-title-box {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .login-promo-title-box span.material-symbols-outlined {
            color: var(--primary-color);
            background: rgba(59, 130, 246, 0.1);
            padding: 6px;
            border-radius: 8px;
            font-size: 20px;
        }

        .login-promo-title {
            font-size: 15px;
            font-weight: 700;
            color: #0f172a;
            margin: 0;
        }

        .login-promo-close {
            background: transparent;
            border: none;
            color: #64748b;
            cursor: pointer;
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background-color 0.2s;
        }

        .login-promo-close:hover {
            background-color: rgba(15, 23, 42, 0.05);
            color: #0f172a;
        }

        .login-promo-body {
            font-size: 13px;
            line-height: 1.5;
            color: #475569;
            margin-bottom: 16px;
        }

        .login-promo-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 10px;
            background: var(--primary-color);
            color: #ffffff;
            border: none;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
            transition: all 0.2s ease;
        }

        .login-promo-btn:hover {
            background: var(--primary-hover);
            box-shadow: 0 6px 16px rgba(59, 130, 246, 0.3);
            color: #ffffff;
            transform: translateY(-1px);
        }

        @media (max-width: 768px) {
            .login-promo-card {
                left: 16px;
                right: 16px;
                bottom: -250px;
                width: auto;
                transition: bottom 0.5s cubic-bezier(0.16, 1, 0.3, 1);
            }
            .login-promo-card.show {
                bottom: 16px;
                left: 16px;
            }
        }