/* ==========================================================================
   QuitTrack — Vintage Luxe Theme
   Inspired by mid-century luxury print advertising.
   Deep burgundy, antique gold, elegant serifs, premium detailing.
   ========================================================================== */

:root {
    /* Vintage Luxe palette */
    --color-bg: #FAF6F0;
    --color-surface: #FFFFFF;
    --color-surface-hover: #F5F0E8;
    --color-primary: #6B1C2A;
    --color-primary-dim: #551622;
    --color-accent: #C9A84C;
    --color-accent-dim: rgba(201, 168, 76, 0.3);
    --color-warning: #B8860B;
    --color-danger: #8B2500;
    --color-text: #2C2225;
    --color-text-dim: #6B5E61;
    --color-border: rgba(201, 168, 76, 0.25);
    --color-border-strong: rgba(201, 168, 76, 0.5);
    --radius: 4px;
    --radius-sm: 4px;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Lora', Georgia, serif;

    /* Shadows */
    --shadow-card: 0 4px 24px rgba(107, 28, 42, 0.06);
    --shadow-elevated: 0 8px 40px rgba(107, 28, 42, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   App layout
   ========================================================================== */

.app-container {
    display: flex;
    min-height: 100vh;
}

/* ==========================================================================
   Sidebar navigation
   ========================================================================== */

.sidebar {
    width: 260px;
    background: var(--color-primary);
    display: flex;
    flex-direction: column;
    padding: 0;
    flex-shrink: 0;
    position: relative;
}

/* Subtle gold accent line on right edge */
.sidebar::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--color-accent), transparent);
}

.sidebar-header {
    padding: 2rem 1.75rem 1.5rem;
    border-bottom: 1px solid rgba(201, 168, 76, 0.2);
    text-align: center;
}

.app-title {
    color: var(--color-accent);
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.app-subtitle {
    color: rgba(250, 246, 240, 0.5);
    font-family: var(--font-body);
    font-size: 0.7rem;
    margin-top: 0.35rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.sidebar-brand-flourish {
    display: block;
    width: 40px;
    height: 1px;
    background: var(--color-accent);
    margin: 0.75rem auto 0;
    opacity: 0.5;
}

.nav-links {
    list-style: none;
    padding: 1rem 0;
    flex: 1;
}

.nav-links li a {
    display: block;
    padding: 0.6rem 1.75rem;
    color: rgba(250, 246, 240, 0.6);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 0.85rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    letter-spacing: 0.02em;
}

.nav-links li a:hover {
    color: rgba(250, 246, 240, 0.9);
    background: rgba(250, 246, 240, 0.06);
}

.nav-links li a.active {
    color: var(--color-accent);
    background: rgba(250, 246, 240, 0.08);
    border-left-color: var(--color-accent);
}

.sidebar-footer {
    padding: 1rem 1.75rem;
    border-top: 1px solid rgba(201, 168, 76, 0.2);
}

.btn-logout {
    width: 100%;
    padding: 0.5rem;
    background: transparent;
    border: 1px solid rgba(201, 168, 76, 0.3);
    color: rgba(250, 246, 240, 0.5);
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.2s ease;
}

.btn-logout:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ==========================================================================
   Main content
   ========================================================================== */

.main-content {
    flex: 1;
    padding: 2.5rem 3rem;
    overflow-y: auto;
    max-width: 1100px;
}

/* ==========================================================================
   Page headers
   ========================================================================== */

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.02em;
}

.page-header p {
    color: var(--color-text-dim);
    margin-top: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.75rem;
    box-shadow: var(--shadow-card);
    position: relative;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

/* ==========================================================================
   Progress cards (dashboard stats)
   ========================================================================== */

.progress-card {
    text-align: center;
    border-top: 2px solid var(--color-accent);
}

.progress-card .value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-top: 0.5rem;
}

.progress-card .label {
    color: var(--color-accent);
    font-family: var(--font-body);
    font-size: 0.7rem;
    margin-top: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.progress-card .sublabel {
    color: var(--color-text-dim);
    font-family: var(--font-body);
    font-size: 0.75rem;
    margin-top: 0.25rem;
    font-style: italic;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--color-text-dim);
    font-family: var(--font-body);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(107, 28, 42, 0.08);
}

select.form-control {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236B1C2A' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 5h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    border-bottom: 2px solid var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-primary-dim);
    box-shadow: 0 4px 16px rgba(107, 28, 42, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
    background: rgba(201, 168, 76, 0.08);
    border-color: var(--color-accent);
}

.btn-danger {
    background: transparent;
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
}

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(139, 37, 0, 0.06);
    border: 1px solid rgba(139, 37, 0, 0.2);
    border-left: 3px solid var(--color-danger);
    color: var(--color-danger);
}

.alert-success {
    background: rgba(107, 28, 42, 0.04);
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-left: 3px solid var(--color-accent);
    color: var(--color-primary);
}

/* ==========================================================================
   Health timeline
   ========================================================================== */

.timeline {
    position: relative;
    padding-left: 2.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--color-border-strong);
}

.timeline-item {
    position: relative;
    padding-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    left: -2.25rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border-strong);
    border: 2px solid var(--color-bg);
}

.timeline-dot.achieved {
    background: var(--color-accent);
    box-shadow: 0 0 8px rgba(201, 168, 76, 0.4);
}

.timeline-item h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-primary);
}

.timeline-item p {
    color: var(--color-text-dim);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    line-height: 1.7;
}

.timeline-item .time-label {
    color: var(--color-accent);
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 500;
    margin-top: 0.25rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ==========================================================================
   Achievements grid
   ========================================================================== */

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.achievement-badge {
    text-align: center;
    padding: 1.75rem 1rem;
    opacity: 0.35;
    transition: all 0.3s ease;
    border-top: 2px solid transparent;
}

.achievement-badge.earned {
    opacity: 1;
    border-top-color: var(--color-accent);
}

.achievement-badge .badge-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.achievement-badge .badge-name {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}

.achievement-badge .badge-desc {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    margin-top: 0.25rem;
    line-height: 1.5;
}

.achievement-badge .badge-date {
    font-size: 0.7rem;
    color: var(--color-accent);
    margin-top: 0.5rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ==========================================================================
   Craving timer
   ========================================================================== */

.timer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.timer-circle {
    position: relative;
    width: 250px;
    height: 250px;
}

.timer-circle svg {
    transform: rotate(-90deg);
}

.timer-circle svg circle {
    stroke: var(--color-accent) !important;
}

.timer-circle .timer-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
}

.timer-controls {
    display: flex;
    gap: 1rem;
}

/* ==========================================================================
   Breathing exercise
   ========================================================================== */

.breathing-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.breathing-circle {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201, 168, 76, 0.12), rgba(107, 28, 42, 0.05));
    border: 2px solid var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-primary);
    transition: transform 4s ease-in-out;
}

.breathing-circle.inhale {
    transform: scale(1.3);
}

.breathing-circle.hold {
    transform: scale(1.3);
}

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

/* ==========================================================================
   Intensity slider
   ========================================================================== */

.intensity-slider {
    width: 100%;
    accent-color: var(--color-primary);
}

.intensity-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--color-text-dim);
    margin-top: 0.25rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ==========================================================================
   Quote box
   ========================================================================== */

.quote-box {
    border-left: 3px solid var(--color-accent);
    padding: 1.25rem 1.5rem;
    background: rgba(107, 28, 42, 0.03);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* ==========================================================================
   Chart placeholder
   ========================================================================== */

.chart-container {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-dim);
    font-family: var(--font-display);
    font-style: italic;
}

/* ==========================================================================
   Mood selector
   ========================================================================== */

.mood-selector {
    display: flex;
    gap: 0.5rem;
}

.mood-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--color-border-strong);
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mood-btn:hover,
.mood-btn.selected {
    border-color: var(--color-accent);
    background: rgba(201, 168, 76, 0.1);
    box-shadow: 0 0 8px rgba(201, 168, 76, 0.15);
}

/* ==========================================================================
   Trigger pills
   ========================================================================== */

.trigger-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.trigger-pill {
    padding: 0.5rem 1.25rem;
    border-radius: 2px;
    border: 1px solid var(--color-border-strong);
    background: transparent;
    color: var(--color-text-dim);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.82rem;
    transition: all 0.2s ease;
    letter-spacing: 0.03em;
}

.trigger-pill:hover,
.trigger-pill.selected {
    border-color: var(--color-accent);
    color: var(--color-primary);
    background: rgba(201, 168, 76, 0.08);
}

/* ==========================================================================
   Auth pages (Login, Register, Home)
   ========================================================================== */

.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background: var(--color-bg);
    position: relative;
}

/* Decorative top gold bar */
.auth-container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-elevated);
    border: 1px solid var(--color-border);
}

.auth-card h1 {
    text-align: center;
    font-family: var(--font-display);
    color: var(--color-primary);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.auth-card .auth-subtitle {
    text-align: center;
    color: var(--color-text-dim);
    margin-bottom: 2rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-style: italic;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
    color: var(--color-accent);
}

/* ==========================================================================
   Home page hero
   ========================================================================== */

.hero {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 640px;
    margin: 0 auto;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.1;
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.hero h1 span {
    color: var(--color-primary);
    font-style: italic;
    font-weight: 400;
}

.hero p {
    font-family: var(--font-body);
    font-size: 1.1rem;
    color: var(--color-text-dim);
    margin-bottom: 2.5rem;
    line-height: 1.85;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Established year mark for hero */
.hero-flourish {
    color: var(--color-accent);
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.hero-divider {
    width: 60px;
    height: 1px;
    background: var(--color-accent);
    margin: 1.5rem auto 2rem;
}

/* ==========================================================================
   General links
   ========================================================================== */

a {
    color: var(--color-primary);
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent);
}

/* ==========================================================================
   Validation messages
   ========================================================================== */

.validation-message {
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 0.35rem;
    font-style: italic;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        padding: 0;
    }

    .sidebar::after {
        display: none;
    }

    .sidebar-header {
        padding: 1rem 1rem 0.75rem;
    }

    .app-title {
        font-size: 1.25rem;
    }

    .nav-links {
        display: flex;
        overflow-x: auto;
        padding: 0.5rem 1rem;
        gap: 0.25rem;
    }

    .nav-links li a {
        white-space: nowrap;
        padding: 0.5rem 0.85rem;
        border-left: none;
        border-radius: var(--radius);
        font-size: 0.75rem;
        letter-spacing: 0.05em;
    }

    .nav-links li a.active {
        border-left-color: transparent;
        background: var(--color-accent);
        color: var(--color-primary);
    }

    .sidebar-footer {
        display: none;
    }

    .main-content {
        padding: 1.25rem;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .progress-card .value {
        font-size: 1.75rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
}

/* ==========================================================================
   Notification toggle
   ========================================================================== */

.notification-toggle {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-status {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification-enabled span {
    color: var(--color-primary);
    font-weight: 500;
}

.notification-error {
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 0.5rem;
    font-style: italic;
}