/* =============================================================================
   Dereal Voice App — Shared Components
   Canonical building blocks for sub-pages: card, button, input, page header,
   back link, modal, toast, badge.

   Load AFTER base.css and BEFORE the page-specific stylesheet:
       <link rel="stylesheet" href="/fonts/fonts.css">
       <link rel="stylesheet" href="/css/base.css">
       <link rel="stylesheet" href="/css/components.css">
       <link rel="stylesheet" href="/onboarding/onboarding.css">

   All component classes are namespaced by intent (e.g. .card, .btn, .page-*)
   so they don't collide with existing page-specific class names.
   ============================================================================= */

/* =============================================================================
   1. Page Layout
   ============================================================================= */

.page {
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--bg-dark);
    color: var(--text-primary);
}

.page-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-lg);
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) 0 var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-xl);
}

.page-header__title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

.page-header__subtitle {
    margin-top: var(--space-xs);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.page-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.back-link::before {
    content: '\2190';   /* ← */
    font-size: 1rem;
    line-height: 1;
}

.back-link:hover {
    color: var(--accent);
    background: var(--bg-card);
}

/* =============================================================================
   2. Card
   The canonical card per design contract:
   bg-card • 16px radius • subtle border • hover lifts -2px + border becomes accent
   No heavy shadows.
   ============================================================================= */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    transition: transform var(--transition-fast), border-color var(--transition-fast),
                background var(--transition-fast);
}

.card--interactive {
    cursor: pointer;
}

.card--interactive:hover,
.card--interactive:focus-visible {
    transform: translateY(-2px);
    border-color: var(--accent);
}

.card--elevated {
    background: var(--bg-elevated);
}

.card--compact {
    padding: var(--space-md);
}

.card__title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 var(--space-xs);
}

.card__meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.card__body {
    color: var(--text-secondary);
    line-height: 1.6;
}

.card__footer {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}

/* Card grids — auto-fit responsive */
.card-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* =============================================================================
   3. Buttons
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    min-height: 40px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    user-select: none;
    transition: background var(--transition-fast), color var(--transition-fast),
                border-color var(--transition-fast), transform var(--transition-fast),
                box-shadow var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:active:not(:disabled) {
    transform: translateY(1px);
}

/* Variants */

.btn--primary {
    background: var(--accent);
    color: var(--bg-dark);
}
.btn--primary:hover {
    background: var(--accent-gold);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.btn--secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}
.btn--secondary:hover {
    background: var(--bg-elevated);
    border-color: var(--accent);
    color: var(--accent);
}

.btn--ghost {
    background: transparent;
    color: var(--text-secondary);
}
.btn--ghost:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.btn--accent {
    background: var(--gradient-primary);
    color: white;
    border: none;
}
.btn--accent:hover {
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
}

.btn--danger {
    background: var(--status-danger);
    color: white;
}
.btn--danger:hover {
    background: #dc2626;
}

/* Sizes */
.btn--sm { padding: var(--space-xs) var(--space-md); min-height: 32px; font-size: 0.825rem; }
.btn--lg { padding: var(--space-md) var(--space-xl); min-height: 48px; font-size: 1rem; }

.btn--block { width: 100%; }

.btn--icon {
    padding: var(--space-sm);
    min-height: 40px;
    width: 40px;
    aspect-ratio: 1;
    border-radius: var(--radius-full);
}

/* =============================================================================
   4. Inputs
   ============================================================================= */

.input,
.textarea,
.select {
    display: block;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    min-height: 40px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

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

.input:focus,
.textarea:focus,
.select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-card);
}

.textarea {
    min-height: 96px;
    resize: vertical;
    line-height: 1.5;
}

.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.field__label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.field__hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.field__error {
    font-size: 0.8rem;
    color: var(--status-danger);
}

/* =============================================================================
   5. Modal
   ============================================================================= */

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    padding: var(--space-lg);
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-fast);
}

.modal.open,
.modal[data-state="open"] {
    display: flex;
}

.modal__panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-normal);
}

.modal__header {
    position: sticky;
    top: 0;
    background: var(--bg-card);
    padding: var(--space-lg) var(--space-lg) var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.modal__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin: 0;
}

.modal__body {
    padding: var(--space-lg);
}

.modal__footer {
    position: sticky;
    bottom: 0;
    background: var(--bg-card);
    padding: var(--space-md) var(--space-lg) var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    gap: var(--space-sm);
    justify-content: flex-end;
}

/* =============================================================================
   6. Toast / Notification
   ============================================================================= */

.toast {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left-width: 4px;
    border-radius: var(--radius-md);
    padding: var(--space-md);
    max-width: 320px;
    box-shadow: var(--shadow-md);
    z-index: 200;
    animation: slideIn var(--transition-normal);
}

.toast--success { border-left-color: var(--status-success); }
.toast--warning { border-left-color: var(--status-warning); }
.toast--danger  { border-left-color: var(--status-danger); }
.toast--info    { border-left-color: var(--status-info); }

.toast.hidden { display: none; }

.toast__content {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-start;
}

.toast__icon { font-size: 1.2rem; line-height: 1.2; }
.toast__text { flex: 1; font-size: 0.9rem; line-height: 1.4; color: var(--text-primary); }

.toast__close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0;
    line-height: 1;
}
.toast__close:hover { color: var(--text-primary); }

/* =============================================================================
   7. Badge
   ============================================================================= */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
}

.badge--accent  { background: var(--accent-glow); color: var(--accent); border-color: transparent; }
.badge--success { background: rgba(16, 185, 129, 0.15); color: var(--status-success); border-color: transparent; }
.badge--warning { background: rgba(245, 158, 11, 0.15); color: var(--status-warning); border-color: transparent; }
.badge--danger  { background: rgba(239, 68, 68, 0.15);  color: var(--status-danger);  border-color: transparent; }

/* =============================================================================
   8. Responsive
   ============================================================================= */

@media (max-width: 768px) {
    .page-container {
        padding: var(--space-lg) var(--space-md);
    }
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    .modal {
        padding: var(--space-md);
    }
    .modal__panel {
        max-height: 92vh;
    }
}

@media (max-width: 480px) {
    .page-container {
        padding: var(--space-md);
    }
    .card {
        padding: var(--space-md);
        border-radius: var(--radius-lg);
    }
    .btn {
        width: 100%;
    }
    .btn--icon {
        width: 40px;
    }
    .toast {
        top: auto;
        bottom: 20px;
        left: 20px;
        right: 20px;
        max-width: none;
    }
}

/* =============================================================================
   Icon Utilities (Lucide SVG)
   data-icon placeholders get replaced with inline <svg> on DOM ready by
   shared.js -> icons.js. Icon slots use inline-flex so the SVG is always
   visually centered inside its container. Do NOT use vertical-align — it
   doesn't apply to flex items and was shifting icons off-center.
   ============================================================================= */

/* Every icon slot becomes an inline-flex centering box */
[data-icon],
.icon,
.title-icon,
.card-icon,
.stat-icon,
.badge-icon,
.action-icon,
.option-icon,
.completion-icon,
.audio-icon,
.emergency-icon,
.volume-icon,
.player-companion,
.companion-emoji,
.session-icon,
.protocol-icon,
.healing-icon,
.ritual-icon,
.step-icon,
.mood-icon,
.domain-icon,
.chapter-icon,
.tab-icon,
.status-icon,
.result-icon,
.archetype-icon,
.indicator-icon,
.metric-icon,
.element-icon,
.phase-icon,
.quick-icon,
.weather-icon,
.sky-element,
.canopy-fruit,
.nav-btn[data-icon],
.nav-btn:has(> svg) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* Shared SVG defaults */
[data-icon] > svg,
.icon > svg,
.title-icon > svg,
.card-icon > svg,
.stat-icon > svg,
.badge-icon > svg,
.action-icon > svg,
.option-icon > svg,
.completion-icon > svg,
.audio-icon > svg,
.emergency-icon > svg,
.volume-icon > svg,
.player-companion > svg,
.companion-emoji > svg,
.session-icon > svg,
.protocol-icon > svg,
.healing-icon > svg,
.ritual-icon > svg,
.step-icon > svg,
.mood-icon > svg,
.domain-icon > svg,
.chapter-icon > svg,
.tab-icon > svg,
.status-icon > svg,
.result-icon > svg,
.archetype-icon > svg,
.indicator-icon > svg,
.metric-icon > svg,
.element-icon > svg,
.phase-icon > svg,
.nav-btn > svg,
.btn > svg,
.action-btn > svg,
.tab-btn > svg {
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
    display: block;
}

/* Default sizes per slot type */
[data-icon] > svg     { width: 18px; height: 18px; }
.nav-btn > svg        { width: 20px; height: 20px; }
.title-icon > svg     { width: 20px; height: 20px; }
.card-icon > svg      { width: 28px; height: 28px; }
.stat-icon > svg      { width: 24px; height: 24px; }
.option-icon > svg    { width: 22px; height: 22px; }
.completion-icon > svg { width: 40px; height: 40px; }
.companion-emoji > svg { width: 32px; height: 32px; }
.player-companion > svg { width: 40px; height: 40px; }
.quick-icon > svg     { width: 20px; height: 20px; }
.weather-icon > svg   { width: 32px; height: 32px; }
.tab-icon > svg       { width: 18px; height: 18px; }
.btn > svg            { width: 16px; height: 16px; }

/* Utility size variants (override per-slot defaults) */
.icon-sm > svg,  [data-icon].icon-sm > svg  { width: 14px; height: 14px; }
.icon-md > svg,  [data-icon].icon-md > svg  { width: 18px; height: 18px; }
.icon-lg > svg,  [data-icon].icon-lg > svg  { width: 24px; height: 24px; }
.icon-xl > svg,  [data-icon].icon-xl > svg  { width: 32px; height: 32px; }
.icon-2xl > svg, [data-icon].icon-2xl > svg { width: 48px; height: 48px; }
.icon-3xl > svg, [data-icon].icon-3xl > svg { width: 64px; height: 64px; }

/* Color: icon slots inherit an accent tint unless parent sets color */
.title-icon,
.card-icon,
.stat-icon,
.badge-icon,
.action-icon,
.option-icon,
.completion-icon,
.healing-icon,
.protocol-icon,
.domain-icon,
.mood-icon,
.archetype-icon {
    color: var(--accent, var(--accent-primary));
}

/* Header nav buttons: size + subtle hover */
.header-nav .nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    color: var(--text-secondary);
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.header-nav .nav-btn:hover,
.header-nav .nav-btn.active {
    background: var(--bg-elevated, rgba(255,255,255,0.05));
    color: var(--accent, var(--accent-primary));
}