/* ============================================
   PhysioSigh - Breathing Exercise PWA Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --bg-gradient-start: #0f172a;
    --bg-gradient-mid: #1e3a5f;
    --bg-gradient-end: #1a365d;
    --btn-color-rest: #2563eb;
    --btn-color-active: #60a5fa;
    --btn-color-glow: rgba(96, 165, 250, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: rgba(248, 250, 252, 0.7);
    --text-muted: rgba(248, 250, 252, 0.5);
    --panel-bg: #1e293b;
    --panel-border: rgba(255, 255, 255, 0.1);
    --overlay-bg: rgba(15, 23, 42, 0.95);
    --toggle-bg: #334155;
    --toggle-active: #3b82f6;
    --slider-track: #334155;
    --slider-fill: #3b82f6;

    /* Sizes */
    --btn-size: min(200px, 50vw);
    --btn-size-expanded-1: 1.3;
    --btn-size-expanded-2: 1.5;
    --header-height: 60px;

    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--text-primary);
    background: var(--bg-gradient-start);
    min-height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

/* App Container */
.app {
    position: relative;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Background Gradient */
.background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        var(--bg-gradient-start) 0%,
        var(--bg-gradient-mid) 50%,
        var(--bg-gradient-end) 100%
    );
    z-index: -1;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: calc(var(--header-height) + env(safe-area-inset-top));
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 calc(16px + env(safe-area-inset-right)) 0 calc(16px + env(safe-area-inset-left));
    padding-top: env(safe-area-inset-top);
    z-index: 100;
}

.header-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 12px;
    transition: background var(--transition-fast);
}

.header-btn:hover,
.header-btn:focus {
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.header-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

.header-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    margin-right: auto;
    margin-left: 8px;
}

.header-right {
    display: flex;
    gap: 4px;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-height) + env(safe-area-inset-top) + 20px) calc(20px + env(safe-area-inset-right)) calc(40px + env(safe-area-inset-bottom)) calc(20px + env(safe-area-inset-left));
}

/* Progress Container */
.progress-container {
    position: absolute;
    top: calc(var(--header-height) + env(safe-area-inset-top) + 20px);
    left: 20px;
    right: 20px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
}

.progress-container.visible {
    opacity: 1;
    visibility: visible;
}

.progress-header {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    margin-bottom: 8px;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.cancel-session-btn {
    position: absolute;
    right: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 8px;
    transition: background var(--transition-fast), color var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.cancel-session-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.cancel-session-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

.progress-bar {
    width: 100%;
    max-width: 300px;
    height: 4px;
    background: var(--slider-track);
    border-radius: 2px;
    margin: 0 auto;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--slider-fill);
    border-radius: 2px;
    width: 0%;
    transition: width 0.5s linear;
}

.time-remaining {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-primary);
    margin-top: 12px;
    font-variant-numeric: tabular-nums;
}

/* Phase Indicator */
.phase-indicator {
    position: absolute;
    top: calc(var(--header-height) + env(safe-area-inset-top) + 100px);
    left: 20px;
    right: 20px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium);
}

.phase-indicator.visible {
    opacity: 1;
    visibility: visible;
}

.phase-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Breathing Button Container */
.breathing-container {
    position: absolute;
    top: calc(50% + (var(--header-height) + env(safe-area-inset-top)) / 2 - (40px + env(safe-area-inset-bottom)) / 2);
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: calc(var(--btn-size) * 1.8);
    height: calc(var(--btn-size) * 1.8);
}

/* Breathing Glow Effect */
.breathing-glow {
    position: absolute;
    width: calc(var(--btn-size) * 2.5);
    height: calc(var(--btn-size) * 2.5);
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(96, 165, 250, 0.35) 0%,
        rgba(96, 165, 250, 0.2) 20%,
        rgba(96, 165, 250, 0.1) 35%,
        rgba(96, 165, 250, 0.03) 50%,
        transparent 65%
    );
    opacity: 0;
    transform: scale(1);
    transition-property: opacity, transform;
    transition-timing-function: ease;
    /* transition-duration is set via JavaScript to match phase duration */
    pointer-events: none;
}

/* Breathing Intensity Overlay - smooth gradient effect */
.breathing-intensity {
    position: absolute;
    width: calc(var(--btn-size) * 3);
    height: calc(var(--btn-size) * 3);
    border-radius: 50%;
    pointer-events: none;
    background: radial-gradient(
        circle,
        rgba(147, 197, 253, 0.5) 0%,
        rgba(96, 165, 250, 0.3) 20%,
        rgba(59, 130, 246, 0.15) 35%,
        rgba(59, 130, 246, 0.05) 50%,
        transparent 65%
    );
    opacity: 0;
    transform: scale(1);
    transition-property: opacity, transform;
    transition-timing-function: ease-out;
    /* Duration will be set via JS */
}

/* Breathing Button */
.breathing-btn {
    position: relative;
    width: var(--btn-size);
    height: var(--btn-size);
    border-radius: 50%;
    border: calc(var(--btn-size) * 0.04) solid rgba(255, 255, 255, 0.6);
    box-sizing: border-box;
    cursor: pointer;
    background: linear-gradient(
        145deg,
        var(--btn-color-rest) 0%,
        var(--btn-color-active) 100%
    );
    box-shadow:
        0 4px 30px rgba(37, 99, 235, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    transform: scale(1);
    transition: transform 0.1s ease, box-shadow 0.3s ease, filter 0.3s ease;
    -webkit-tap-highlight-color: transparent;
}

.breathing-btn:focus {
    outline: none;
}

.breathing-btn:active:not(.animating) {
    transform: scale(0.98);
}

.breathing-inner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.breathing-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Breathing Animation States */
.breathing-btn.animating {
    transition-property: transform, filter;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    /* transition-duration is set via JavaScript to match phase duration */
}

/* Scale states for button - smooth expansion during inhales */
.breathing-btn.inhale-1 {
    transform: scale(var(--btn-size-expanded-1));
}

.breathing-btn.inhale-2 {
    transform: scale(var(--btn-size-expanded-2));
}

.breathing-btn.pause-1 {
    transform: scale(var(--btn-size-expanded-1));
}

.breathing-btn.pause-2 {
    transform: scale(var(--btn-size-expanded-2));
}

.breathing-btn.exhale {
    transform: scale(1);
}

/* Glow animation states - synced with button scale */
.breathing-glow.inhale-1 {
    opacity: 0.4;
    transform: scale(1.5);
}

.breathing-glow.inhale-2 {
    opacity: 0.6;
    transform: scale(2);
}

.breathing-glow.pause-1 {
    opacity: 0.4;
    transform: scale(1.5);
}

.breathing-glow.pause-2 {
    opacity: 0.6;
    transform: scale(2);
}

.breathing-glow.exhale {
    opacity: 0;
    transform: scale(1);
}

/* Instruction Hint */
.instruction-hint {
    position: absolute;
    bottom: calc(40px + env(safe-area-inset-bottom));
    left: calc(20px + env(safe-area-inset-left));
    right: calc(20px + env(safe-area-inset-right));
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: opacity var(--transition-medium);
}

.instruction-hint.hidden {
    opacity: 0;
}

/* Overlays */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-bg);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 20px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
    z-index: 200;
}

.overlay.visible {
    opacity: 1;
    visibility: visible;
}

.overlay-content {
    text-align: center;
    max-width: 360px;
}

.overlay-content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.overlay-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.overlay-content .session-info {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.overlay-btn {
    display: block;
    width: 100%;
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast);
    margin-bottom: 12px;
}

.overlay-btn:last-child {
    margin-bottom: 0;
}

.overlay-btn.primary {
    background: var(--btn-color-rest);
    color: white;
}

.overlay-btn.primary:hover {
    background: #3b82f6;
}

.overlay-btn.primary:active {
    transform: scale(0.98);
}

.overlay-btn.secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--panel-border);
}

.overlay-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Completion Screen */
@keyframes celebrate {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.completion-heading {
    animation: celebrate 0.6s ease;
}

.completion-encouragement {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Share Section - now uses .completion-section and .completion-label styles */

.completion-section {
    text-align: left;
    margin-bottom: 16px;
}

.completion-section:last-of-type {
    margin-bottom: 0;
}

.share-full-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--btn-color-rest);
    border: none;
    border-radius: 8px;
    color: white;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.share-full-btn:hover {
    opacity: 0.85;
}

.share-full-btn:active {
    transform: scale(0.98);
}

.completion-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.inline-form-row {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.completion-textarea,
.completion-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9375rem;
    padding: 10px 12px;
    transition: border-color var(--transition-fast);
}

.completion-textarea:focus,
.completion-input:focus {
    outline: none;
    border-color: var(--slider-fill);
}

.completion-textarea::placeholder,
.completion-input::placeholder {
    color: var(--text-muted);
}

.completion-textarea {
    resize: none;
    overflow: hidden;
    max-height: 120px;
    line-height: 1.5;
}

.inline-submit-btn {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--btn-color-rest);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.inline-submit-btn:hover {
    opacity: 0.85;
}

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

.inline-submit-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.form-status {
    font-size: 0.8125rem;
    margin-top: 6px;
    min-height: 1.2em;
}

.form-status.success {
    color: #4ade80;
}

.form-status.error {
    color: #f87171;
}

/* Completion Bottom Buttons */
.completion-buttons {
    display: flex;
    gap: 12px;
    margin-top: 32px;
}

.completion-btn {
    flex: 1;
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.completion-btn:active {
    transform: scale(0.97);
}

.completion-btn.primary {
    background: var(--btn-color-rest);
    border: none;
    color: white;
}

.completion-btn.primary:hover {
    background: #3b82f6;
}

.completion-btn.secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text-primary);
}

.completion-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Hide breathing circle when completion overlay is visible */
.breathing-container.hidden {
    display: none;
}

/* Slide Panels */
.slide-panel {
    position: fixed;
    top: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background: var(--panel-bg);
    z-index: 300;
    transform: translateX(-100%);
    transition: transform var(--transition-medium);
    display: flex;
    flex-direction: column;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

.slide-panel.left {
    left: 0;
    transform: translateX(-100%);
}

.slide-panel.right {
    right: 0;
    transform: translateX(100%);
}

.slide-panel.visible {
    transform: translateX(0);
}

.panel-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
    z-index: 250;
}

.panel-backdrop.visible {
    opacity: 1;
    visibility: visible;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--panel-border);
}

.panel-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.close-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 10px;
    transition: background var(--transition-fast);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    -webkit-overflow-scrolling: touch;
}

/* Menu Navigation */
.menu-nav {
    padding: 8px 0;
}

.menu-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 16px 20px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: background var(--transition-fast);
    text-align: left;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.menu-item svg {
    color: var(--text-muted);
}

/* Toggle Switches */
.toggle-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.toggle-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.toggle-info {
    flex: 1;
}

.toggle-label {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.toggle-desc {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 32px;
    flex-shrink: 0;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--toggle-bg);
    border-radius: 16px;
    transition: background var(--transition-fast);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--toggle-active);
}

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

/* Settings Sections */
.settings-section {
    margin-bottom: 32px;
}

.settings-section h3 {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* Sliders */
.slider-group {
    margin-bottom: 20px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.slider-header label {
    font-size: 0.9375rem;
    color: var(--text-primary);
}

.slider-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slider-fill);
    font-variant-numeric: tabular-nums;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--slider-track);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.cycle-total {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-top: 8px;
}

.cycle-total span {
    font-weight: 600;
    color: var(--slider-fill);
}

/* Duration Buttons */
.duration-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.duration-btn {
    padding: 12px 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.duration-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.duration-btn.active {
    background: var(--slider-fill);
    border-color: var(--slider-fill);
    color: white;
}

/* Reset Button */
.reset-btn {
    width: 100%;
    padding: 14px;
    background: transparent;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* Info Pages */
.info-page {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--panel-bg);
    z-index: 400;
    transform: translateX(100%);
    transition: transform var(--transition-medium);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.info-page.visible {
    transform: translateX(0);
}

.info-header {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    padding-top: calc(12px + env(safe-area-inset-top));
    background: var(--panel-bg);
    border-bottom: 1px solid var(--panel-border);
    z-index: 10;
}

.back-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 10px;
    transition: background var(--transition-fast);
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.info-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.info-content {
    padding: 24px 20px;
    padding-bottom: calc(24px + env(safe-area-inset-bottom));
    max-width: 600px;
}

.info-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.info-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.info-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.info-content ul,
.info-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.info-content li {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.info-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Community Stat */
.community-stat {
    text-align: center;
    margin-bottom: 24px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid var(--panel-border);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--slider-fill);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.02em;
}

.info-content .version {
    margin-top: 40px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Paused State */
.breathing-btn.paused::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    background: transparent;
    border-left: 10px solid white;
    border-right: 10px solid white;
    box-sizing: border-box;
}

/* Screen Wake Lock Indicator */
.wake-lock-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.wake-lock-indicator.visible {
    opacity: 1;
}

@media (min-height: 700px) {
    .overlay {
        align-items: center;
    }
}

/* Responsive Adjustments */
@media (min-width: 480px) {
    :root {
        --btn-size: 220px;
    }
}

@media (min-width: 768px) {
    :root {
        --btn-size: 250px;
    }

    .info-content {
        padding: 32px 40px;
    }
}

/* Landscape Mode */
@media (orientation: landscape) and (max-height: 500px) {
    .main-content {
        padding-top: calc(var(--header-height) + 10px);
    }

    .progress-container {
        top: calc(var(--header-height) + 10px);
    }

    .phase-indicator {
        top: calc(var(--header-height) + 60px);
    }

    :root {
        --btn-size: min(140px, 35vh);
    }

    .instruction-hint {
        bottom: 20px;
    }
}

/* Cookie Consent Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--panel-bg);
    border-top: 1px solid rgba(74, 143, 231, 0.2);
    padding: 1rem calc(1.5rem + env(safe-area-inset-right)) calc(1rem + env(safe-area-inset-bottom)) calc(1.5rem + env(safe-area-inset-left));
    display: none;
    justify-content: space-between;
    align-items: center;
    z-index: 9999;
    gap: 1rem;
}

.cookie-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.cookie-buttons {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.cookie-btn {
    padding: 0.4rem 1rem;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
}

.cookie-accept {
    background: var(--slider-fill);
    color: white;
    border: none;
}

.cookie-decline {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--toggle-bg);
}

/* iOS Install Banner */
.install-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--panel-bg);
    border-top: 1px solid rgba(74, 143, 231, 0.2);
    padding: 1rem calc(1.5rem + env(safe-area-inset-right)) calc(1rem + env(safe-area-inset-bottom)) calc(1.5rem + env(safe-area-inset-left));
    display: none;
    justify-content: space-between;
    align-items: center;
    z-index: 10000;
    gap: 1rem;
}

.install-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.install-share-icon {
    display: inline-block;
    vertical-align: middle;
    margin: 0 2px;
    color: var(--slider-fill);
}

.install-buttons {
    display: flex;
    flex-shrink: 0;
}

.install-btn {
    padding: 0.4rem 1rem;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
}

.install-dismiss {
    background: var(--slider-fill);
    color: white;
    border: none;
}

/* Onboarding Overlay */
.onboarding-overlay {
    z-index: 500;
    align-items: center;
}

.onboarding-demo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin: 24px 0;
    height: 108px;
}

.onboarding-demo-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--btn-color-rest), var(--btn-color-active));
    animation: onboarding-breathe 10.5s ease infinite;
}

@keyframes onboarding-breathe {
    /* inhale1: 0 → 2.5s (0% → 23.8%) */
    0%      { transform: scale(0.6); }
    23.8%   { transform: scale(0.85); }
    /* pause1: 2.5s → 2.75s (23.8% → 26.2%) */
    26.2%   { transform: scale(0.85); }
    /* inhale2: 2.75s → 4.25s (26.2% → 40.5%) */
    40.5%   { transform: scale(1.0); }
    /* pause2: 4.25s → 4.5s (40.5% → 42.9%) */
    42.9%   { transform: scale(1.0); }
    /* exhale: 4.5s → 10.5s (42.9% → 100%) */
    100%    { transform: scale(0.6); }
}

.onboarding-demo-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    min-height: 1.2em;
}

.onboarding-settings-hint {
    font-size: 0.9rem;
}

.onboarding-icon {
    display: inline-block;
    vertical-align: middle;
    margin: 0 2px;
    color: var(--text-secondary);
}

.onboarding-overlay .completion-btn {
    margin-top: 8px;
    padding: 14px 16px;
    max-width: 50%;
}

/* Reduce Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Hide scrollbar but keep functionality */
.panel-content::-webkit-scrollbar,
.info-page::-webkit-scrollbar {
    width: 0;
    background: transparent;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--slider-fill);
    outline-offset: 2px;
}

button:focus:not(:focus-visible) {
    outline: none;
}