/*
 * TASS website landing page (Home/Index) in the app's public design.
 * Source: TASSAPP app/home.tsx and src/components/public/*; colours and sizes come from tass-tokens.css only.
 * Everything is scoped under .tass-landing, except the header rule, which only applies on this page.
 */

/* The public header is transparent until scrolled; the landing starts on white, so it stays navy here. */
body:has(.tass-landing) #header.header {
    --background-color: var(--tass-primary);
}

.tass-landing {
    --tl-max: 1200px;
    --tl-gutter: 24px;
    --tl-header-offset: 64px; /* the fixed public header */
    font-family: var(--tass-font-body);
    color: var(--tass-ink);
    background: var(--tass-surface);
    font-size: 16px;
    line-height: 1.6;
}

.tass-landing *,
.tass-landing *::before,
.tass-landing *::after { box-sizing: border-box; }

.tass-landing ul,
.tass-landing ol { list-style: none; margin: 0; padding: 0; }

.tass-landing p { margin: 0; }

.tass-landing h1,
.tass-landing h2,
.tass-landing h3 { font-family: var(--tass-font-heading); color: var(--tass-ink); margin: 0; }

.tass-landing a { color: inherit; }

.tass-landing :focus-visible { outline: none; box-shadow: var(--tass-focus-ring); border-radius: var(--tass-radius-sm); }

.tl-container { width: 100%; max-width: calc(var(--tl-max) + var(--tl-gutter) * 2); margin: 0 auto; padding: 0 var(--tl-gutter); }

/* Sections */
.tl-section { padding: 80px 0; }
.tl-section-compact { padding: 40px 0; }
.tl-section-soft { background: var(--tass-surface-soft); }

/* Type */
.tl-eyebrow {
    display: flex;
    align-items: center;
    gap: var(--tass-space-xs);
    margin-bottom: var(--tass-space-sm) !important;
    color: var(--tass-accent-text);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.tl-eyebrow::before { content: ""; width: 24px; height: 2px; border-radius: 2px; background: var(--tass-accent-text); }

.tl-hero-title { font-size: 44px; font-weight: 800; line-height: 1.15; letter-spacing: -.01em; }
.tl-title { font-size: 34px; font-weight: 800; line-height: 1.2; }
.tl-panel-title { font-size: 20px; font-weight: 700; line-height: 1.3; }
.tl-card-title { font-size: 18px; font-weight: 700; line-height: 1.35; }
.tl-lead { margin-top: var(--tass-space-md) !important; color: var(--tass-muted); font-size: 17px; max-width: 640px; }
.tl-lead-wide { max-width: none; }
.tl-lead strong { color: var(--tass-ink); }
.tl-body { color: var(--tass-muted); font-size: 15px; }
.tl-small { color: var(--tass-muted); font-size: 14px; }

/* Buttons */
.tl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tass-space-xs);
    min-height: var(--tass-control);
    padding: 10px 24px;
    border: 1px solid transparent;
    border-radius: var(--tass-radius-pill);
    font-family: var(--tass-font-body);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.tass-landing .tl-btn-primary { background: var(--tass-primary); color: var(--tass-white); }
.tass-landing .tl-btn-primary:hover { background: var(--tass-deep-navy); color: var(--tass-white); }
.tass-landing .tl-btn-secondary { background: var(--tass-surface); border-color: var(--tass-border); color: var(--tass-primary); }
.tass-landing .tl-btn-secondary:hover { border-color: var(--tass-primary); color: var(--tass-primary); }
.tass-landing .tl-btn-light { background: var(--tass-white); color: var(--tass-primary); }
.tass-landing .tl-btn-light:hover { background: var(--tass-accent-soft); color: var(--tass-primary); }
.tass-landing .tl-btn-outline-light { border-color: rgba(255, 255, 255, .7); color: var(--tass-white); }
.tass-landing .tl-btn-outline-light:hover { border-color: var(--tass-white); background: rgba(255, 255, 255, .08); color: var(--tass-white); }
.tl-btn-block { width: 100%; }
.tl-btn-start { align-self: flex-start; }

/* Hero */
.tl-hero { padding-top: calc(var(--tl-header-offset) + 64px); }
.tl-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 440px); gap: 64px; align-items: center; }
.tl-hero-copy { display: flex; flex-direction: column; }
.tl-hero-actions { display: flex; flex-direction: column; gap: var(--tass-space-sm); margin-top: var(--tass-space-lg); max-width: 440px; }
.tl-hero-actions > .tl-btn-primary + .tl-btn-secondary { align-self: flex-start; }
.tl-button-row { display: flex; gap: var(--tass-space-sm); }
.tl-button-row .tl-btn { flex: 1 1 0; }
.tl-promise { display: flex; align-items: center; gap: var(--tass-space-xs); margin-top: var(--tass-space-md) !important; color: var(--tass-muted); font-size: 14px; }
.tl-promise i { color: var(--tass-accent-text); }

.tl-photo-card { position: relative; margin: 0; aspect-ratio: 848 / 1000; border-radius: var(--tass-radius-lg); overflow: hidden; background: var(--tass-primary); box-shadow: var(--tass-shadow-card); }
.tl-photo-card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tl-photo-badge { position: absolute; top: var(--tass-space-md); inset-inline-start: var(--tass-space-md); padding: 6px 12px; border-radius: var(--tass-radius-pill); background: var(--tass-white); color: var(--tass-primary); font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.tl-photo-caption { position: absolute; inset-inline: var(--tass-space-md); bottom: var(--tass-space-md); display: flex; flex-direction: column; gap: var(--tass-space-xs); padding: var(--tass-space-md); border-radius: var(--tass-radius-md); background: rgba(8, 8, 57, .72); color: var(--tass-white); }
.tl-photo-headline { font-family: var(--tass-font-heading); font-size: 24px; font-weight: 700; line-height: 1.25; }
.tl-photo-line { display: flex; align-items: center; gap: var(--tass-space-xs); font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.tl-rule { width: 20px; height: 2px; border-radius: 2px; background: var(--tass-accent); }

/* Cards */
.tl-card { background: var(--tass-surface); border: 1px solid var(--tass-border); border-radius: var(--tass-radius-md); padding: var(--tass-space-lg); }

/* Accreditations */
.tl-accr-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--tass-space-md); margin-top: var(--tass-space-lg) !important; }
.tl-accr { display: flex; gap: var(--tass-space-sm); align-items: flex-start; padding: var(--tass-space-md); }
.tl-accr p { color: var(--tass-muted); font-size: 13px; line-height: 1.5; }
.tl-accr strong { color: var(--tass-ink); font-weight: 600; }
.tl-accr .tl-accr-id { color: var(--tass-accent-text); }
.tl-accr-icon { flex: 0 0 auto; color: var(--tass-accent-text); font-size: 18px; line-height: 1.2; }

/* Metrics */
.tl-metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--tass-space-lg); }
.tl-metric { display: flex; align-items: center; gap: var(--tass-space-sm); }
.tl-metric > span:last-child { display: flex; flex-direction: column; }
.tl-metric-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: var(--tass-radius-pill); background: var(--tass-accent-soft); color: var(--tass-primary); font-size: 20px; }
.tl-metric-value { font-family: var(--tass-font-heading); font-size: 28px; font-weight: 800; line-height: 1.1; color: var(--tass-ink); }
.tl-metric-label { color: var(--tass-muted); font-size: 13px; }

/* Courses */
.tl-courses { scroll-margin-top: var(--courses-header-offset, 100px); }
.tl-section-head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--tass-space-lg); }
.tl-courses-slot { margin-top: var(--tass-space-lg); min-height: 520px; }
.tl-chips { display: flex; flex-wrap: wrap; gap: var(--tass-space-xs); margin-bottom: var(--tass-space-lg) !important; }
.tl-chip { padding: 6px 14px; border: 1px solid var(--tass-border); border-radius: var(--tass-radius-pill); background: var(--tass-surface); color: var(--tass-ink); font-size: 13px; font-weight: 500; }
.tl-course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--tass-space-lg); }
.tl-course { display: flex; flex-direction: column; overflow: hidden; background: var(--tass-surface); border: 1px solid var(--tass-border); border-radius: var(--tass-radius-md); }
.tl-course-media { position: relative; display: block; aspect-ratio: 16 / 9; background: var(--tass-primary); overflow: hidden; text-decoration: none; }
.tl-course-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.tl-course-placeholder { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: var(--tass-white); font-family: var(--tass-font-heading); font-size: 22px; font-weight: 800; letter-spacing: .04em; }
.tl-course-status { position: absolute; top: var(--tass-space-sm); inset-inline-start: var(--tass-space-sm); padding: 4px 10px; border-radius: var(--tass-radius-pill); background: var(--tass-white); color: var(--tass-primary); font-size: 11px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.tl-course-body { display: flex; flex: 1 1 auto; flex-direction: column; gap: var(--tass-space-sm); padding: var(--tass-space-md) var(--tass-space-md) var(--tass-space-lg); }
.tl-course-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.tl-pill { padding: 3px 10px; border-radius: var(--tass-radius-pill); background: var(--tass-surface-soft); border: 1px solid var(--tass-border); color: var(--tass-ink); font-size: 11px; font-weight: 600; text-transform: uppercase; }
.tl-pill-price { background: var(--tass-primary); border-color: var(--tass-primary); color: var(--tass-white); }
.tl-course-title { font-size: 18px; font-weight: 700; line-height: 1.35; }
.tl-course-title a { text-decoration: none; }
.tl-course-title a:hover { color: var(--tass-primary); text-decoration: underline; }
.tl-course-text { color: var(--tass-muted); font-size: 14px; }
.tl-course-lecturer { display: flex; align-items: center; gap: var(--tass-space-xs); margin-top: auto; }
.tl-course-lecturer > span:last-child { display: flex; flex-direction: column; line-height: 1.3; }
.tl-course-lecturer-name { color: var(--tass-ink); font-size: 13px; font-weight: 600; }
.tl-course-lecturer small { color: var(--tass-muted); font-size: 12px; }
.tl-course-avatar { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: var(--tass-radius-pill); background: var(--tass-primary); color: var(--tass-white); font-size: 15px; }
.tl-placeholder { height: 440px; border-radius: var(--tass-radius-md); background: linear-gradient(90deg, var(--tass-surface) 0%, var(--tass-accent-soft) 50%, var(--tass-surface) 100%); background-size: 200% 100%; animation: tl-shimmer 1.4s infinite linear; }
@keyframes tl-shimmer { to { background-position: -200% 0; } }
.tl-state { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--tass-space-md); padding: var(--tass-space-xl) var(--tass-space-lg); border: 1px solid var(--tass-border); border-radius: var(--tass-radius-md); background: var(--tass-surface); color: var(--tass-muted); text-align: center; }
.tl-state a { color: var(--tass-accent-text); font-weight: 600; }

/* How it works */
.tl-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--tass-space-lg); margin-top: var(--tass-space-xl) !important; counter-reset: none; }
.tl-step { display: flex; flex-direction: column; gap: 6px; }
.tl-step-marker { display: flex; align-items: center; gap: var(--tass-space-sm); margin-bottom: var(--tass-space-sm); }
.tl-step-number { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; width: 32px; height: 32px; border-radius: var(--tass-radius-pill); background: var(--tass-primary); color: var(--tass-white); font-size: 14px; font-weight: 600; }
.tl-step-line { flex: 1 1 auto; height: 1px; background: var(--tass-border); }
.tl-step-label { color: var(--tass-accent-text); font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.tl-step-title { font-size: 18px; font-weight: 700; }

/* Why TASS */
.tl-why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--tass-space-md); margin-top: var(--tass-space-xl) !important; }
.tl-why { display: flex; flex-direction: column; gap: var(--tass-space-xs); }
.tl-why-icon { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; width: 44px; height: 44px; margin-bottom: var(--tass-space-xs); border-radius: var(--tass-radius-md); background: var(--tass-accent-soft); color: var(--tass-primary); font-size: 20px; }
.tl-benefits { margin-top: var(--tass-space-md); }
.tl-benefits ul { display: flex; flex-direction: column; gap: var(--tass-space-xs); margin-top: var(--tass-space-sm) !important; }
.tl-benefits li { display: flex; gap: var(--tass-space-xs); color: var(--tass-ink); font-size: 15px; }
.tl-benefits i { color: var(--tass-accent-text); }

/* Verify */
.tl-verify { display: flex; align-items: center; gap: var(--tass-space-md); }
.tl-verify .tl-why-icon { margin-bottom: 0; }
.tl-verify-copy { flex: 1 1 auto; }

/* FAQ */
.tl-faq-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: var(--tass-space-xl); }
.tl-faq { border-top: 1px solid var(--tass-border); }
.tl-faq-item { border-bottom: 1px solid var(--tass-border); }
.tl-faq-item summary { display: flex; justify-content: space-between; align-items: center; gap: var(--tass-space-md); min-height: var(--tass-touch-target); padding: var(--tass-space-md) 0; color: var(--tass-ink); font-weight: 600; cursor: pointer; list-style: none; }
.tl-faq-item summary::-webkit-details-marker { display: none; }
.tl-faq-item summary i { color: var(--tass-primary); transition: transform .2s ease; }
.tl-faq-item[open] summary i { transform: rotate(180deg); }
.tl-faq-item p { padding-bottom: var(--tass-space-md); }

/* Call to action */
.tl-cta { padding: 64px 0; background: var(--tass-primary); color: var(--tass-white); }
.tl-cta-inner { display: flex; justify-content: space-between; align-items: center; gap: var(--tass-space-lg); }
.tl-cta-title { color: var(--tass-white) !important; font-size: 32px; font-weight: 800; line-height: 1.2; }
.tl-cta p { margin-top: var(--tass-space-xs); color: var(--tass-lavender); }
.tl-cta-actions { display: flex; gap: var(--tass-space-sm); flex: 0 0 auto; }

/* Tablet */
@media (max-width: 991px) {
    .tl-hero-grid { grid-template-columns: 1fr; gap: var(--tass-space-xl); }
    .tl-photo-card { max-width: 520px; aspect-ratio: 4 / 3; }
    .tl-accr-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tl-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tl-course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tl-steps,
    .tl-why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tl-faq-grid { grid-template-columns: 1fr; gap: var(--tass-space-lg); }
}

/* Phone */
@media (max-width: 767px) {
    .tass-landing { --tl-gutter: 16px; }
    .tl-section { padding: 56px 0; }
    .tl-section-compact { padding: 32px 0; }
    .tl-hero { padding-top: calc(var(--tl-header-offset) + 32px); }
    .tl-hero-title { font-size: 32px; }
    .tl-title { font-size: 28px; }
    .tl-lead { font-size: 16px; }
    .tl-hero-actions { max-width: none; }
    .tl-hero-actions .tl-btn-start,
    .tl-hero-actions > .tl-btn-primary + .tl-btn-secondary { align-self: stretch; }
    .tl-photo-card { max-width: none; }
    .tl-photo-headline { font-size: 20px; }
    /* Phones swipe through the courses, as the app's rail does. */
    .tl-course-grid {
        display: flex;
        gap: var(--tass-space-md);
        margin-inline: calc(var(--tl-gutter) * -1);
        padding: 0 var(--tl-gutter) var(--tass-space-xs);
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scroll-padding-inline: var(--tl-gutter);
        scrollbar-width: none;
    }
    .tl-course-grid::-webkit-scrollbar { display: none; }
    .tl-course { flex: 0 0 min(85%, 340px); scroll-snap-align: start; }
    .tl-courses-slot { min-height: 480px; }
    .tl-accr-grid,
    .tl-steps,
    .tl-why-grid { grid-template-columns: 1fr; }
    .tl-metrics { gap: var(--tass-space-md); }
    .tl-metric-value { font-size: 24px; }
    .tl-section-head { flex-direction: column; }
    .tl-verify { flex-wrap: wrap; }
    .tl-verify .tl-btn { width: 100%; }
    .tl-cta-inner { flex-direction: column; align-items: stretch; text-align: center; }
    .tl-cta-title { font-size: 26px; }
    .tl-cta-actions { flex-direction: column; }
    .tl-placeholder:nth-child(n + 2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .tl-placeholder { animation: none; }
    .tl-faq-item summary i { transition: none; }
}