/*
 * Layout — Grid, Navigation, Footer
 * Liquid glass, larger logo, smooth transitions
 */

/* ═══════════════════════════════════════════════════════════
   CONTAINER
═══════════════════════════════════════════════════════════ */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.container-text {
    max-width: var(--container-text);
}

/* ═══════════════════════════════════════════════════════════
   SECTIONS
═══════════════════════════════════════════════════════════ */

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-lg {
    padding: var(--section-gap) 0;
}

.section-warm {
    background-color: var(--color-surface-warm);
}

.section-cream {
    background-color: var(--color-surface-cream);
}

.section-dark {
    background-color: var(--color-surface-dark);
    color: var(--color-surface);
}

/* Section header — minimal */
.section__header {
    margin-bottom: var(--space-2xl);
}

.section__header--center {
    text-align: center;
}

.section__eyebrow {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: var(--weight-normal);
    line-height: var(--leading-snug);
    letter-spacing: var(--tracking-tight);
}

.section__subtitle {
    font-size: var(--text-lg);
    color: var(--color-ink-soft);
    margin-top: var(--space-md);
    max-width: 540px;
    line-height: var(--leading-relaxed);
}

.section__header--center .section__subtitle {
    margin-left: auto;
    margin-right: auto;
}

/* ═══════════════════════════════════════════════════════════
   GRID
═══════════════════════════════════════════════════════════ */

.grid {
    display: grid;
    gap: var(--grid-gap);
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-auto {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* Card grid with spacing between glass panels */
.card-grid {
    display: grid;
    gap: var(--card-gap);
}

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

.card-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .grid-3,
    .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .card-grid-2,
    .card-grid-3 {
        grid-template-columns: 1fr;
    }
}

/* Flex layouts */
.flex {
    display: flex;
}

.flex-center {
    align-items: center;
    justify-content: center;
}

.flex-between {
    justify-content: space-between;
    align-items: center;
}

.flex-col {
    flex-direction: column;
}

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ═══════════════════════════════════════════════════════════
   NAVIGATION — Glass header, larger logo
═══════════════════════════════════════════════════════════ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: var(--glass-bg-strong);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--color-border-soft);
    transition: all var(--transition-normal);
}

.header--scrolled {
    box-shadow: var(--shadow-sm);
}

.header--hidden {
    transform: translateY(-100%);
}

.header--menu-open {
    z-index: calc(var(--z-modal) + 1);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    padding: 0 var(--container-padding);
    max-width: var(--container-max);
    margin: 0 auto;
}

/* Logo — MUCH larger, using display font */
.header__logo {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 1.5rem + 1.5vw, 2.5rem);
    font-weight: var(--weight-normal);
    color: var(--color-ink);
    letter-spacing: var(--tracking-tight);
    white-space: nowrap;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.header__link {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-soft);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.header__link:hover {
    color: var(--color-ink);
}

.header__link.active {
    color: var(--color-ink);
    position: relative;
}

.header__link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: var(--space-sm);
    right: var(--space-sm);
    height: 1px;
    background: var(--color-accent);
    border-radius: 1px;
}

/* Nav visual grouping — separate products (Program, Coaching) from content
   Children of .header__nav: a(Program), a(Coaching), a(Interviews)... */
.header__nav > a:nth-child(3) {
    position: relative;
    margin-left: var(--space-md);
}

.header__nav > a:nth-child(3)::before {
    content: '';
    position: absolute;
    left: calc(var(--space-md) * -1 + 2px);
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 20px;
    background: var(--color-ink-muted);
    opacity: 0.35;
}

/* ═══════════════════════════════════════════════════════════
   MOBILE MENU SYSTEM (all elements at body level)
   z-index: backdrop 1000 < nav 1001 < toggle 1002
═══════════════════════════════════════════════════════════ */

/* Backdrop — fullscreen blur layer */
.nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(247, 240, 231, 0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.nav-backdrop.open {
    opacity: 1;
    visibility: visible;
}

/* Mobile toggle button — fixed position at body level */
.mobile-toggle {
    display: none;
    position: fixed;
    top: 18px;
    right: var(--container-padding);
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    z-index: 1002;
    padding: 0;
}

.mobile-toggle span {
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: var(--color-ink);
    border-radius: 1px;
    transition: all var(--transition-normal);
}

.mobile-toggle span:nth-child(1) { top: 13px; }
.mobile-toggle span:nth-child(2) { top: 21px; }
.mobile-toggle span:nth-child(3) { top: 29px; }

/* Toggle active state — X icon */
.mobile-toggle.active span:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-toggle.active span:nth-child(3) {
    top: 21px;
    transform: rotate(-45deg);
}

/* Mobile nav — fullscreen menu */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    z-index: 1001;
    pointer-events: none;
}

.mobile-nav.open {
    pointer-events: auto;
}

.mobile-nav__link {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 10vw, 4rem);
    padding: var(--space-xs) var(--space-xl);
    color: var(--color-ink);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
}

.mobile-nav.open .mobile-nav__link {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation for menu links */
.mobile-nav.open .mobile-nav__link:nth-of-type(1) { transition-delay: 0.15s; }
.mobile-nav.open .mobile-nav__link:nth-of-type(2) { transition-delay: 0.2s; }
.mobile-nav.open .mobile-nav__link:nth-of-type(3) { transition-delay: 0.25s; }
.mobile-nav.open .mobile-nav__link:nth-of-type(4) { transition-delay: 0.3s; }
.mobile-nav.open .mobile-nav__link:nth-of-type(5) { transition-delay: 0.35s; }
.mobile-nav.open .mobile-nav__link:nth-of-type(6) { transition-delay: 0.4s; }

.mobile-nav__link:hover {
    color: var(--color-accent);
}

/* Mobile: show toggle, hide desktop nav */
@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }

    .header__nav {
        display: none;
    }
}

/* ═══════════════════════════════════════════════════════════
   FOOTER — Minimal, soft
═══════════════════════════════════════════════════════════ */

.footer {
    background-color: var(--color-surface-dark);
    color: var(--color-surface);
    padding: var(--space-xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__copy {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
}

.footer__link {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
    transition: color var(--transition-normal);
}

.footer__link:hover {
    color: var(--color-surface);
}

@media (max-width: 480px) {
    .footer__inner {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

/* ═══════════════════════════════════════════════════════════
   PAGE WRAPPER
═══════════════════════════════════════════════════════════ */

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--color-surface);
}

.page__content {
    flex-grow: 1;
    padding-top: 80px; /* Header height */
    /* Note: overflow-x: hidden breaks position: sticky, so we handle overflow at body level */
}

/* Parallax container */
.parallax-section {
    position: relative;
    transform-style: preserve-3d;
    will-change: transform;
}

/* ═══════════════════════════════════════════════════════════
   UTILITY SPACING
═══════════════════════════════════════════════════════════ */

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-soft { color: var(--color-ink-soft); }
.text-muted { color: var(--color-ink-muted); }

/* Max width utilities */
.max-w-text { max-width: var(--container-text); }
.max-w-narrow { max-width: var(--container-narrow); }
.mx-auto { margin-left: auto; margin-right: auto; }