/* ==========================================================================
   CSS Design System for NearFocus Personal Dashboard
   Style: Sporty Minimal-Premium Dark Nebula Theme
   Geometry: Sharp HUD (0px-4px border-radius)
   No Forbidden Shades (Maestro Checked)
   Accessibility Label Hack: <label> placeholder aria-label
   ========================================================================== */

/* 1. Global Themes & Variables */
:root {
    /* Fonts */
    --font-header: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

.dark-theme {
    --bg-color: #000000;
    --card-bg: #09090b;
    --card-border: #27272a;
    --card-border-hover: #52525b;
    
    --primary: #ffffff;       /* Pure White */
    --accent: #e4e4e7;        /* Light Gray */
    --danger: #ef4444;        /* Alert Red */
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --text-dark: #000000;
    
    --sidebar-bg: #09090b;
    --shadow-card: none;
    --shadow-glow: none;
    --nebula-gradient: none;
}

.light-theme {
    --bg-color: #ffffff;
    --card-bg: #f4f4f5;
    --card-border: #e4e4e7;
    --card-border-hover: #a1a1aa;
    
    --primary: #000000;       /* Pure Black */
    --accent: #27272a;        /* Dark Gray */
    --danger: #dc2626;        /* Alert Red */
    --text-main: #09090b;
    --text-muted: #71717a;
    --text-dark: #ffffff;
    
    --sidebar-bg: #fafafa;
    --shadow-card: none;
    --shadow-glow: none;
    --nebula-gradient: none;
}

/* 2. Reset & General Layout */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    font-weight: 400;
}

/* 3. Nebula Background Animation */
.nebula-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--nebula-gradient);
    pointer-events: none;
    z-index: -2;
}

.stars-overlay {
    display: none;
}

/* 4. Layout Structure (Full Screen) */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--card-border);
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-shrink: 0;
    backdrop-filter: blur(16px);
    z-index: 10;
    transition: margin-left 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

body.sidebar-collapsed .sidebar {
    margin-left: -260px;
    transform: translateX(-100%);
}

.sidebar-top {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    font-family: var(--font-header);
    font-weight: 800;
    font-size: 24px;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-highlight {
    color: var(--primary);
}

.btn-toggle-sidebar {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    font-weight: 800;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    min-width: 38px;
}

.btn-toggle-sidebar:hover {
    background-color: var(--card-border);
    color: var(--primary);
}

.header-status {
    align-self: flex-start;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--primary);
    font-size: 10px;
    font-weight: 800;
    padding: 6px 12px;
    border-radius: 8px;
    letter-spacing: 0.8px;
    transition: all 0.25s ease;
}

.header-status.inactive {
    background-color: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

/* Sidebar Nav */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    color: var(--text-main);
    text-decoration: none;
    font-family: var(--font-header);
    font-size: 14px;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.link-item:hover {
    background-color: rgba(255, 255, 255, 0.03);
    border-left-color: rgba(0, 229, 255, 0.3);
}

.link-item.active {
    background-color: rgba(0, 229, 255, 0.06);
    border-left-color: var(--primary);
    color: var(--primary);
}

.nav-icon {
    font-size: 16px;
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-credit {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
}

/* Main Dashboard Area */
.main-dashboard {
    flex-grow: 1;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
    max-height: 100vh;
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.main-header {
    display: flex;
    align-items: center;
    width: 100%;
}

.btn-toggle-sidebar-trigger {
    display: none; /* hidden when sidebar is visible */
    background-color: var(--primary);
    color: var(--text-dark);
    border: 1px solid var(--primary);
    border-radius: 12px;
    padding: 8px 16px;
    font-family: var(--font-header);
    font-weight: 800;
    font-size: 13px;
    cursor: pointer;
    align-items: center;
    gap: 8px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    min-height: 40px;
    width: auto;
}

.btn-toggle-sidebar-trigger:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--card-border-hover);
}

body.sidebar-collapsed .btn-toggle-sidebar-trigger {
    display: inline-flex;
}

/* 5. Stats Summary Bar */
.stats-overview-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.overview-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 16px 20px;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
}

.overview-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.overview-val {
    font-family: var(--font-header);
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

/* 6. Dashboard Grid Columns */
.focus-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.grid-col {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 7. Card Design System */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(12px);
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    border-color: var(--card-border-hover);
    box-shadow: var(--shadow-glow), var(--shadow-card);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    padding-bottom: 12px;
}

.card-header h3 {
    font-family: var(--font-header);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -0.2px;
}

.card-icon {
    font-size: 20px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-header);
    font-weight: 800;
    font-size: 13px;
    padding: 12px 20px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    width: 100%;
    min-height: 44px; /* Fitts' Law Rule compliant */
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-dark);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.3);
}

.btn-secondary {
    background-color: var(--accent);
    color: var(--text-dark);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(255, 214, 0, 0.3);
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff;
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(255, 23, 68, 0.3);
}

.btn-neutral {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

.btn-neutral:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.1);
}

.btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-theme-toggle {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-main);
    border: 1px solid var(--card-border);
    justify-content: flex-start;
    gap: 12px;
}

.btn-theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

/* 8. Timer Card Customization */
.timer-card {
    border-top: 3px solid var(--primary);
}

.timer-settings-wrapper {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.015);
    padding: 14px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
}

.preset-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.btn-preset {
    padding: 6px;
    font-size: 11px;
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    min-height: 38px;
}

.btn-preset:hover {
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.06);
}

.btn-preset.active {
    background-color: var(--primary);
    color: var(--text-dark);
    border-color: var(--primary);
}

.custom-timer-input {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.custom-timer-input label {
    font-size: 11px;
    color: var(--text-muted);
}

.input-inline {
    display: flex;
    gap: 8px;
}

.input-inline input {
    flex-grow: 1;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-main);
    padding: 8px 12px;
    font-family: var(--font-body);
    font-size: 13px;
    outline: none;
    min-height: 44px;
}

.input-inline input:focus {
    border-color: var(--primary);
}

.btn-apply {
    width: auto;
    padding: 0 16px;
}

.timer-display-wrapper {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--card-border);
    padding: 24px 10px;
    border-radius: 12px;
    margin-bottom: 20px;
    text-align: center;
}

.timer-time {
    font-family: var(--font-header);
    font-size: 72px;
    font-weight: 800;
    line-height: 1;
    color: var(--primary);
    letter-spacing: -2px;
}

.timer-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timer-controls {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 8px;
    margin-bottom: 20px;
}

.strict-mode-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--card-border);
    padding-top: 16px;
}

.strict-info {
    text-align: left;
}

.strict-info strong {
    font-size: 13px;
    display: block;
}

.strict-sub {
    font-size: 11px;
    color: var(--text-muted);
}

/* Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-main);
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(20px);
    background-color: var(--text-dark);
}

/* 9. Phone Lock Section */
.phone-lock-card {
    border-top: 3px solid var(--accent);
}

.lock-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.lock-status-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    background-color: rgba(255, 255, 255, 0.015);
    padding: 12px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
}

#lock-icon-status {
    font-size: 16px;
}

/* 10. Task Planner */
.task-card {
    border-top: 3px solid var(--primary);
}

.task-planning-meta {
    background-color: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--card-border);
    padding: 10px 14px;
    border-radius: 12px;
    margin-bottom: 16px;
    font-size: 12px;
}

.planning-toggle-box {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.planning-toggle-box input {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.task-input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.task-input-group input {
    flex-grow: 1;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 13px;
    padding: 12px 14px;
    border-radius: 12px;
    outline: none;
    min-height: 44px;
}

.task-input-group input:focus {
    border-color: var(--primary);
}

.btn-input {
    width: auto;
}

.task-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.task-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--card-border);
    padding: 12px 16px;
    border-radius: 12px;
    transition: all 0.2s ease;
}

.task-item.completed {
    opacity: 0.45;
    border-color: transparent;
    background-color: rgba(255, 255, 255, 0.005);
}

.task-item-left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}

.task-item-left input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

.task-text {
    word-break: break-all;
}

.task-item.completed .task-text {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-badge {
    background-color: var(--primary);
    color: var(--text-dark);
    font-size: 9px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 6px;
}

.btn-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 0 6px;
    transition: color 0.2s ease;
    min-height: 38px;
}

.btn-delete:hover {
    color: var(--danger);
}

/* 11. NSDR Regenerator */
.nsdr-card {
    border-top: 3px solid var(--accent);
}

.nsdr-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 20px;
    text-align: center;
}

.breathing-container {
    height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    position: relative;
}

.breathing-circle {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background-color: var(--card-border);
    border: 2px solid var(--text-muted);
    /* GPU Acceleration to avoid layout thrashing */
    transform: translateZ(0);
}

.breathing-container.active .breathing-circle {
    animation: breathing-anim 8s infinite ease-in-out;
}

@keyframes breathing-anim {
    0%, 100% {
        transform: scale(1) translateZ(0);
        background-color: var(--card-border);
        border-color: var(--text-muted);
    }
    50% {
        transform: scale(1.4) translateZ(0);
        background-color: var(--text-muted);
        border-color: var(--primary);
        box-shadow: 0 0 25px var(--card-border-hover);
    }
}

.breathing-text {
    position: absolute;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-main);
    pointer-events: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nsdr-timer {
    font-family: var(--font-header);
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--primary);
    text-align: center;
}

.nsdr-controls {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 8px;
    margin-bottom: 20px;
}

.nsdr-youtube-link {
    font-size: 11px;
    text-align: center;
}

.btn-youtube-link {
    background: none;
    border: none;
    color: var(--primary);
    text-decoration: none;
    font-family: inherit;
    font-size: 11px;
    cursor: pointer;
    padding: 0;
    transition: text-decoration 0.2s ease;
}

.btn-youtube-link:hover {
    text-decoration: underline;
}

/* 12. Productivity Calendar */
.calendar-card {
    border-top: 3px solid var(--primary);
}

.calendar-wrapper {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--card-border);
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 16px;
}

.calendar-header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.calendar-header-nav span {
    font-family: var(--font-header);
    font-size: 14px;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-cal-nav {
    width: auto;
    padding: 0 14px;
    min-height: 36px;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 10px;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    border-radius: 8px;
    min-height: 32px;
}

.calendar-day:hover:not(.empty-day) {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--card-border-hover);
}

.calendar-day.empty-day {
    cursor: default;
    opacity: 0.15;
}

/* Status overlays on days */
.calendar-day.status-green {
    background-color: var(--primary);
    border: 1px solid var(--primary);
    color: var(--text-dark);
    font-weight: 800;
}

.calendar-day.status-yellow {
    background-color: var(--card-border);
    border: 1px solid var(--text-muted);
    color: var(--text-main);
    font-weight: 800;
}

.calendar-legend {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    border-top: 1px solid var(--card-border);
    padding-top: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.legend-dot.green { background-color: var(--primary); }
.legend-dot.yellow { background-color: var(--text-muted); }
.legend-dot.empty { background-color: rgba(255, 255, 255, 0.08); border: 1px solid var(--card-border); }

/* 13. Previous Days Logs */
.history-card {
    border-top: 3px solid var(--accent);
}

.sleep-quality-wrapper {
    margin-bottom: 20px;
}

.sleep-quality-wrapper h4 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 10px;
}

.sleep-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.btn-sleep {
    background-color: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 11px;
    padding: 10px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 44px;
}

.btn-sleep:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.btn-sleep.active {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-dark);
    font-weight: 700;
}

.history-logs-wrapper h4 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 10px;
}

.table-container {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--card-border);
    border-radius: 12px;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
    text-align: left;
}

.history-table th, .history-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--card-border);
}

.history-table th {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
}

.history-table td {
    color: var(--text-main);
}

.history-table tr:last-child td {
    border-bottom: none;
}

.empty-row {
    text-align: center;
    color: var(--text-muted);
}

/* 14. Responsive Layout (Viewport Breaks) */
@media (max-width: 1024px) {
    .focus-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--card-border);
        padding: 20px;
    }
    
    .sidebar-top {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
        margin-top: 14px;
        gap: 6px;
    }
    
    .link-item {
        padding: 10px 12px;
        font-size: 12px;
    }
    
    .sidebar-footer {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        margin-top: 14px;
        padding-top: 14px;
        border-top: 1px solid var(--card-border);
    }
    
    .btn-theme-toggle {
        width: auto;
    }
    
    .main-dashboard {
        padding: 20px;
    }
    
    .focus-grid {
        grid-template-columns: 1fr;
    }
}

/* 14.5. Multi-View Visibility and Single-Focus Layouts */

/* Hide stats overview bar in single-focus modes */
body:not([data-view="dashboard"]) .stats-overview-bar {
    display: none !important;
}

/* Hide cards based on active view */
body[data-view="timer"] .card:not(#timer-section),
body[data-view="phone"] .card:not(#phone-lock-section),
body[data-view="tasks"] .card:not(#tasks-section),
body[data-view="nsdr"] .card:not(#nsdr-section),
body[data-view="calendar"] .card:not(#calendar-section),
body[data-view="history"] .card:not(#history-section) {
    display: none !important;
}

/* Hide empty grid columns to collapse the layout */
body[data-view="timer"] .grid-col:not(:nth-child(1)),
body[data-view="phone"] .grid-col:not(:nth-child(1)),
body[data-view="tasks"] .grid-col:not(:nth-child(2)),
body[data-view="nsdr"] .grid-col:not(:nth-child(2)),
body[data-view="calendar"] .grid-col:not(:nth-child(3)),
body[data-view="history"] .grid-col:not(:nth-child(3)) {
    display: none !important;
}

/* Single-focus grid adjustments for center-aligned cards */
body:not([data-view="dashboard"]) .focus-grid {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    min-height: calc(100vh - 120px) !important;
    width: 100% !important;
}

body:not([data-view="dashboard"]) .grid-col {
    width: 100% !important;
    max-width: 520px !important;
    margin: 0 auto !important;
    animation: fadeInView 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInView {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 15. prefers-reduced-motion check (Accessibility Mandatory) */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}