/*
 * PATCH 16 - TAXI UX FOUNDATION V1
 * Scope: Taxi vertical only (.taxi-ux-foundation-v1)
 * Policy: preserve current Page Type + Supporting Listing visuals.
 * This file introduces shared tokens/components for PATCH 17+ and only applies
 * safe, low-impact normalization to elements explicitly using taxi-ui-* classes.
 */

body.taxi-ux-foundation-v1 {
    /* Brand aliases: inherit from the existing frontend theme whenever available. */
    --taxi-color-primary: var(--w11-primary, #ef233c);
    --taxi-color-primary-dark: var(--w11-primary-dark, #c1121f);
    --taxi-color-accent: #16a34a;
    --taxi-color-info: #0ea5e9;
    --taxi-color-warning: #f59e0b;
    --taxi-color-danger: #dc2626;

    --taxi-color-text: #111827;
    --taxi-color-text-soft: #4b5563;
    --taxi-color-text-muted: #6b7280;
    --taxi-color-border: #e5e7eb;
    --taxi-color-border-strong: #d1d5db;
    --taxi-color-surface: #ffffff;
    --taxi-color-surface-soft: #f8fafc;
    --taxi-color-surface-muted: #f3f4f6;

    --taxi-container-max: 1280px;
    --taxi-reading-max: 820px;
    --taxi-sidebar-width: 340px;

    --taxi-space-1: 4px;
    --taxi-space-2: 8px;
    --taxi-space-3: 12px;
    --taxi-space-4: 16px;
    --taxi-space-5: 20px;
    --taxi-space-6: 24px;
    --taxi-space-8: 32px;
    --taxi-space-10: 40px;
    --taxi-space-12: 48px;
    --taxi-space-16: 64px;

    --taxi-radius-sm: 8px;
    --taxi-radius-md: 12px;
    --taxi-radius-lg: 16px;
    --taxi-radius-xl: 20px;
    --taxi-radius-pill: 999px;

    --taxi-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.05);
    --taxi-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
    --taxi-shadow-lg: 0 18px 45px rgba(15, 23, 42, 0.12);

    --taxi-font-xs: 12px;
    --taxi-font-sm: 14px;
    --taxi-font-md: 16px;
    --taxi-font-lg: 18px;
    --taxi-font-xl: 22px;
    --taxi-font-2xl: clamp(26px, 2.5vw, 36px);
    --taxi-font-3xl: clamp(32px, 4vw, 48px);

    --taxi-line-tight: 1.2;
    --taxi-line-heading: 1.3;
    --taxi-line-body: 1.65;

    --taxi-transition-fast: 160ms ease;
    --taxi-transition-normal: 240ms ease;
}

/* Container / section primitives. These classes are opt-in. */
.taxi-ux-foundation-v1 .taxi-ui-container {
    width: min(100% - 32px, var(--taxi-container-max));
    margin-inline: auto;
}

.taxi-ux-foundation-v1 .taxi-ui-reading {
    width: min(100%, var(--taxi-reading-max));
    margin-inline: auto;
}

.taxi-ux-foundation-v1 .taxi-ui-section {
    padding-block: var(--taxi-space-12);
}

.taxi-ux-foundation-v1 .taxi-ui-section--compact {
    padding-block: var(--taxi-space-8);
}

.taxi-ux-foundation-v1 .taxi-ui-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--taxi-space-4);
    margin-bottom: var(--taxi-space-6);
}

.taxi-ux-foundation-v1 .taxi-ui-eyebrow {
    margin: 0 0 var(--taxi-space-2);
    color: var(--taxi-color-primary);
    font-size: var(--taxi-font-sm);
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.taxi-ux-foundation-v1 .taxi-ui-title {
    margin: 0;
    color: var(--taxi-color-text);
    font-size: var(--taxi-font-2xl);
    line-height: var(--taxi-line-heading);
    font-weight: 800;
}

.taxi-ux-foundation-v1 .taxi-ui-subtitle {
    margin: var(--taxi-space-2) 0 0;
    max-width: 760px;
    color: var(--taxi-color-text-soft);
    font-size: var(--taxi-font-md);
    line-height: 1.6;
}

/* Grid primitives. */
.taxi-ux-foundation-v1 .taxi-ui-grid {
    display: grid;
    gap: var(--taxi-space-5);
}

.taxi-ux-foundation-v1 .taxi-ui-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.taxi-ux-foundation-v1 .taxi-ui-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.taxi-ux-foundation-v1 .taxi-ui-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.taxi-ux-foundation-v1 .taxi-ui-layout-sidebar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, var(--taxi-sidebar-width));
    gap: var(--taxi-space-8);
    align-items: start;
}

/* Card primitive. Does not target existing marketplace cards. */
.taxi-ux-foundation-v1 .taxi-ui-card {
    background: var(--taxi-color-surface);
    border: 1px solid var(--taxi-color-border);
    border-radius: var(--taxi-radius-lg);
    box-shadow: var(--taxi-shadow-sm);
}

.taxi-ux-foundation-v1 .taxi-ui-card__body {
    padding: var(--taxi-space-5);
}

.taxi-ux-foundation-v1 .taxi-ui-card--soft {
    background: var(--taxi-color-surface-soft);
    box-shadow: none;
}

/* Buttons: future patches can migrate CTA markup without changing visual logic globally. */
.taxi-ux-foundation-v1 .taxi-ui-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--taxi-space-2);
    min-height: 44px;
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: var(--taxi-radius-md);
    font-size: var(--taxi-font-md);
    font-weight: 700;
    line-height: 1.25;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--taxi-transition-fast), box-shadow var(--taxi-transition-fast), background-color var(--taxi-transition-fast), border-color var(--taxi-transition-fast);
}

.taxi-ux-foundation-v1 .taxi-ui-btn--primary {
    color: #fff;
    background: var(--taxi-color-primary);
}

.taxi-ux-foundation-v1 .taxi-ui-btn--primary:hover {
    color: #fff;
    background: var(--taxi-color-primary-dark);
}

.taxi-ux-foundation-v1 .taxi-ui-btn--outline {
    color: var(--taxi-color-text);
    background: var(--taxi-color-surface);
    border-color: var(--taxi-color-border-strong);
}

.taxi-ux-foundation-v1 .taxi-ui-btn--outline:hover {
    color: var(--taxi-color-primary-dark);
    border-color: var(--taxi-color-primary);
}

.taxi-ux-foundation-v1 .taxi-ui-btn--success {
    color: #fff;
    background: var(--taxi-color-accent);
}

.taxi-ux-foundation-v1 .taxi-ui-btn--block { width: 100%; }

/* Form primitives. */
.taxi-ux-foundation-v1 .taxi-ui-field {
    display: grid;
    gap: var(--taxi-space-2);
}

.taxi-ux-foundation-v1 .taxi-ui-label {
    color: var(--taxi-color-text);
    font-size: var(--taxi-font-sm);
    font-weight: 700;
}

.taxi-ux-foundation-v1 .taxi-ui-control {
    width: 100%;
    min-height: 46px;
    padding: 10px 13px;
    color: var(--taxi-color-text);
    background: var(--taxi-color-surface);
    border: 1px solid var(--taxi-color-border-strong);
    border-radius: var(--taxi-radius-md);
    font-size: 16px; /* Prevents iOS form zoom. */
    line-height: 1.35;
    transition: border-color var(--taxi-transition-fast), box-shadow var(--taxi-transition-fast);
}

.taxi-ux-foundation-v1 textarea.taxi-ui-control {
    min-height: 120px;
    resize: vertical;
}

.taxi-ux-foundation-v1 .taxi-ui-control:focus {
    outline: none;
    border-color: var(--taxi-color-primary);
    box-shadow: 0 0 0 3px rgba(var(--alo-theme-primary-rgb, 239, 35, 60), 0.12);
}

.taxi-ux-foundation-v1 .taxi-ui-help {
    color: var(--taxi-color-text-muted);
    font-size: var(--taxi-font-sm);
    line-height: 1.5;
}

/* Badges / metadata. */
.taxi-ux-foundation-v1 .taxi-ui-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 28px;
    padding: 4px 10px;
    border-radius: var(--taxi-radius-pill);
    color: var(--taxi-color-text-soft);
    background: var(--taxi-color-surface-muted);
    font-size: var(--taxi-font-sm);
    font-weight: 700;
}

.taxi-ux-foundation-v1 .taxi-ui-badge--primary {
    color: var(--taxi-color-primary-dark);
    background: rgba(var(--alo-theme-primary-rgb, 239, 35, 60), 0.09);
}

.taxi-ux-foundation-v1 .taxi-ui-divider {
    height: 1px;
    margin-block: var(--taxi-space-6);
    background: var(--taxi-color-border);
}

/* Small layout helpers. */
.taxi-ux-foundation-v1 .taxi-ui-stack {
    display: flex;
    flex-direction: column;
    gap: var(--taxi-space-4);
}

.taxi-ux-foundation-v1 .taxi-ui-inline {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--taxi-space-3);
}

.taxi-ux-foundation-v1 .taxi-ui-muted { color: var(--taxi-color-text-muted); }
.taxi-ux-foundation-v1 .taxi-ui-surface-soft { background: var(--taxi-color-surface-soft); }

/* Sticky CTA primitive for later mobile conversion patches; unused until explicitly adopted. */
.taxi-ux-foundation-v1 .taxi-ui-sticky-cta {
    position: sticky;
    bottom: var(--taxi-space-4);
    z-index: 30;
    display: flex;
    gap: var(--taxi-space-2);
    padding: var(--taxi-space-2);
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--taxi-color-border);
    border-radius: var(--taxi-radius-lg);
    box-shadow: var(--taxi-shadow-lg);
    backdrop-filter: blur(10px);
}

/* Accessibility for new primitives only. */
.taxi-ux-foundation-v1 .taxi-ui-btn:focus-visible,
.taxi-ux-foundation-v1 .taxi-ui-control:focus-visible,
.taxi-ux-foundation-v1 .taxi-ui-card a:focus-visible {
    outline: 3px solid rgba(var(--alo-theme-primary-rgb, 239, 35, 60), 0.28);
    outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
    .taxi-ux-foundation-v1 .taxi-ui-btn:hover {
        transform: translateY(-1px);
        box-shadow: var(--taxi-shadow-sm);
    }
}

@media (max-width: 991.98px) {
    .taxi-ux-foundation-v1 .taxi-ui-grid--4,
    .taxi-ux-foundation-v1 .taxi-ui-grid--3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .taxi-ux-foundation-v1 .taxi-ui-layout-sidebar {
        grid-template-columns: 1fr;
        gap: var(--taxi-space-6);
    }
}

@media (max-width: 767.98px) {
    .taxi-ux-foundation-v1 .taxi-ui-container {
        width: min(100% - 24px, var(--taxi-container-max));
    }

    .taxi-ux-foundation-v1 .taxi-ui-section {
        padding-block: var(--taxi-space-8);
    }

    .taxi-ux-foundation-v1 .taxi-ui-section-head {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: var(--taxi-space-5);
    }

    .taxi-ux-foundation-v1 .taxi-ui-grid--2,
    .taxi-ux-foundation-v1 .taxi-ui-grid--3,
    .taxi-ux-foundation-v1 .taxi-ui-grid--4 {
        grid-template-columns: 1fr;
    }

    .taxi-ux-foundation-v1 .taxi-ui-card__body {
        padding: var(--taxi-space-4);
    }

    .taxi-ux-foundation-v1 .taxi-ui-btn {
        min-height: 46px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .taxi-ux-foundation-v1 .taxi-ui-btn,
    .taxi-ux-foundation-v1 .taxi-ui-control {
        transition: none;
    }
}