/* ============================================================
   HILFE – German Language Institute
   style.css
   Brand guidelines v2.0 — 2026
   Conventions: BEM naming, mobile-first, CSS custom properties
   ============================================================ */

/* ── 1. TOKENS & RESET ─────────────────────────────────────── */
:root {
  /* ── Brand colour palette ─────────────────────────────────
     Source: HILFE Brand Guidelines v2.0, Colour Palette page */
  --color-primary:       #004DB4;   /* Primary Blue  — all interactive elements */
  --color-primary-dark:  #003d8f;   /* Hover/active state for Primary Blue */
  --color-navy:          #002F6C;   /* Deep Navy — dark backgrounds, footer, hero */
  --color-mid-blue:      #4D8FD6;   /* Mid Blue — accents, dividers */
  --color-light-blue:    #CCE0FF;   /* Light Blue — backgrounds, tints */
  --color-pale-blue:     #EEF3FB;   /* Pale Blue-Grey — card backgrounds, section-alt */

  --color-charcoal:      #0D1B2A;   /* Body text */
  --color-slate:         #5A6B82;   /* Secondary text, captions */
  --color-white:         #FFFFFF;   /* Reversed text, clean backgrounds */

  /* ── Semantic aliases ────────────────────────────────────── */
  --color-bg:            var(--color-white);
  --color-bg-alt:        var(--color-pale-blue);
  --color-surface:       var(--color-white);
  --color-border:        #D0DCF0;   /* Derived from Light Blue, slightly darker */

  --color-ink:           var(--color-charcoal);
  --color-ink-muted:     var(--color-slate);
  --color-ink-faint:     #8A9BB4;

  --color-accent:        var(--color-primary);
  --color-accent-tint:   var(--color-light-blue);

  /* ── Typography ──────────────────────────────────────────
     Source: HILFE Brand Guidelines v2.0, Typography section
     Georgia: Headlines & Display (system font, no import needed)
     Helvetica Neue / Calibri: Body text, labels, UI             */
  --font-display: Georgia, 'Times New Roman', serif;
  --font-body:    'Helvetica Neue', Helvetica, Calibri, Arial, sans-serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  2rem;
  --text-4xl:  2.75rem;
  --text-5xl:  3.75rem;

  --weight-light:   300;
  --weight-regular: 400;
  --weight-medium:  500;
  --weight-semi:    600;
  --weight-bold:    700;

  /* ── Spacing ──────────────────────────────────────────────── */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* ── Radii ────────────────────────────────────────────────── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* ── Shadows ──────────────────────────────────────────────── */
  --shadow-sm: 0 1px 3px rgba(0,31,90,.07), 0 1px 2px rgba(0,31,90,.06);
  --shadow-md: 0 4px 16px rgba(0,31,90,.10), 0 2px 6px rgba(0,31,90,.07);
  --shadow-lg: 0 12px 40px rgba(0,31,90,.13), 0 4px 12px rgba(0,31,90,.07);

  /* ── Transitions ──────────────────────────────────────────── */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;

  /* ── Layout ───────────────────────────────────────────────── */
  --container-max: 1160px;
  --section-gap:   var(--space-24);
  --header-height: 68px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ── 2. BRAND TEXTURE ───────────────────────────────────────
   The nested diamond lattice pattern from the brand guidelines.
   Implemented as an SVG data-URI background on dark blue surfaces.
   It appears on: hero, mission quote block, footer.              */
.hero__texture,
.mission__quote-texture,
.site-footer__texture {
  position: absolute;
  inset: 0;
  /* Diamond lattice: two overlapping rotated grids at 45deg */
  background-image:
    repeating-linear-gradient(
      45deg,
      rgba(255,255,255,.06) 0px,
      rgba(255,255,255,.06) 1px,
      transparent 1px,
      transparent 20px
    ),
    repeating-linear-gradient(
      -45deg,
      rgba(255,255,255,.06) 0px,
      rgba(255,255,255,.06) 1px,
      transparent 1px,
      transparent 20px
    );
  pointer-events: none;
}

/* ── 3. UTILITIES ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

.section--alt { background-color: var(--color-bg-alt); }

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
  font-weight: var(--weight-bold);
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--space-4);
}

/* Italic em within headings rendered in Georgia Italic per guidelines */
.section-title em,
.hero__headline em {
  font-style: italic;
  color: var(--color-primary);
}

.section-intro {
  font-size: var(--text-lg);
  color: var(--color-ink-muted);
  max-width: 52ch;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header .section-intro { margin-inline: auto; }

/* ── 4. BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition:
    background var(--transition-normal),
    color var(--transition-normal),
    border-color var(--transition-normal),
    transform var(--transition-fast),
    box-shadow var(--transition-normal);
  white-space: nowrap;
}

.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

/* Primary — Primary Blue background */
.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(0,77,180,.30);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: 0 4px 14px rgba(0,77,180,.38);
}

/* Outline for use on dark/navy backgrounds (hero) */
.btn--outline-light {
  background-color: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,.45);
}

.btn--outline-light:hover {
  border-color: var(--color-white);
  background-color: rgba(255,255,255,.08);
}

.btn--full { width: 100%; justify-content: center; }

/* ── 5. REVEAL ANIMATIONS ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--right { transform: translateX(28px); }

.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ── 6. HEADER & NAV ─────────────────────────────────────────── */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  background-color: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  flex-direction: row;
  line-height: 1.1;
  flex-shrink: 0;
}

/* Logo lockup — wordmark | rule | descriptor, matching brand guidelines */
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  line-height: 1;
  text-decoration: none;
}

/* "HILFE" — large Georgia Bold, Primary Blue */
.nav__logo-wordmark {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: var(--weight-bold);
  letter-spacing: 0.04em;
  color: var(--color-primary);
  line-height: 1;
  padding-right: 0.55rem;
}

/* Vertical rule between wordmark and descriptor */
.nav__logo-rule {
  display: block;
  width: 1.5px;
  height: 2.6rem;
  background-color: var(--color-primary);
  flex-shrink: 0;
  margin-inline: 0.55rem;
}

/* Descriptor text — Helvetica, regular weight, smaller, Primary Blue */
.nav__logo-descriptor {
  font-family: var(--font-body);
  font-size: 0.67rem;
  font-weight: var(--weight-regular);
  line-height: 1.45;
  color: var(--color-primary);
  letter-spacing: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__links a {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-ink-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

.nav__links a:hover { color: var(--color-ink); }
.nav__links a:hover::after { width: 100%; }

.nav__cta {
  padding: var(--space-2) var(--space-6) !important;
  background-color: var(--color-primary) !important;
  color: var(--color-white) !important;
  border-radius: var(--radius-sm);
  transition: background var(--transition-normal) !important;
}

.nav__cta::after { display: none !important; }
.nav__cta:hover { background-color: var(--color-primary-dark) !important; }

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  transform-origin: center;
}

.nav__toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── 7. HERO ─────────────────────────────────────────────────── */
/* Deep Navy background with diamond lattice texture per brand guidelines */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block-start: var(--header-height);
  background-color: var(--color-navy);
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-20);
  max-width: 760px;
}

/* Badge pill */
.hero__badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-light-blue);
  border: 1px solid rgba(204,224,255,.35);
  padding: var(--space-1) var(--space-4);
  border-radius: 99px;
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: fadeUp 0.7s 0.2s ease forwards;
}

/* H1 — Georgia Bold, white on dark */
.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: var(--space-16);
  opacity: 0;
  animation: fadeUp 0.7s 0.35s ease forwards;
}

.hero__headline em {
  color: var(--color-light-blue); /* white on dark context: Light Blue italic */
}

/* Tagline — Georgia Italic, Light Blue per brand guidelines */
.hero__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  color: var(--color-light-blue);
  margin-bottom: var(--space-4);
  opacity: 0;
  animation: fadeUp 0.7s 0.48s ease forwards;
}

.hero__sub {
  font-size: clamp(var(--text-base), 2vw, var(--text-lg));
  color: rgba(255,255,255,.72);
  max-width: 58ch;
  margin-bottom: var(--space-8);
  opacity: 0;
  animation: fadeUp 0.7s 0.6s ease forwards;
}

.hero__sub strong { color: var(--color-white); font-weight: var(--weight-medium); }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
  opacity: 0;
  animation: fadeUp 0.7s 0.72s ease forwards;
}

/* Stats row */
.hero__stats {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  opacity: 0;
  animation: fadeUp 0.7s 0.85s ease forwards;
}

.hero__stat { display: flex; flex-direction: column; gap: 2px; }

.hero__stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  line-height: 1;
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.55);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.2);
}

/* Scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translate(-50%, 50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  opacity: 0;
  animation: fadeIn 1s 1.2s ease forwards;
}

.hero__scroll-hint span {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.35), transparent);
  animation: scrollPulse 2s 1.4s ease-in-out infinite;
}

/* ── 8. ABOUT ─────────────────────────────────────────────────── */
.about__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: start;
}

.about__text p {
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.about__text .btn { margin-top: var(--space-4); }

/* ── Acronym horizontal display ──────────────────────────────
   Five letter-cards in a row, separated by bold dots.
   Each card: ghost letter watermark behind, foreground letter
   on top, word label beneath.                                  */

.acronym--horizontal {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
}

/* Individual letter card */
.acronym__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

/* Inner box: ghost + foreground letter stacked via CSS grid */
.acronym__card-inner {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-pale-blue);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-normal),
              box-shadow var(--transition-normal);
}

.acronym__card:hover .acronym__card-inner {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

/* Ghost letter — fills the card as a watermark */
.acronym__ghost {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: var(--weight-bold);
  color: var(--color-light-blue);
  line-height: 1;
  user-select: none;
  pointer-events: none;
  transition: color var(--transition-normal);
}

.acronym__card:hover .acronym__ghost {
  color: rgba(0, 77, 180, 0.18);
}

/* Word label below the card */
.acronym__word {
  font-family: var(--font-body);
  font-size: clamp(0.6rem, 1.1vw, 0.8rem);
  font-weight: var(--weight-regular);
  color: var(--color-ink-muted);
  text-align: center;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

/* Bold dot separator — vertically centred on the card box,
   not the full column height                                  */
.acronym__dot {
  flex-shrink: 0;
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  /* Nudge up to align with the card box, not the word label  */
  margin-bottom: 0;
  padding-inline: clamp(var(--space-1), 1vw, var(--space-3));
  line-height: 1;
  user-select: none;
}

/* Footnote below the whole row */
.acronym__footnote {
  margin-top: var(--space-4);
  text-align: center;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.acronym__footnote em {
  font-style: italic;
  color: var(--color-primary);
}



/* ── 9. SERVICES ─────────────────────────────────────────────── */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-normal);
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* Level badge — Light Blue tint, Primary Blue text */
.service-card__icon {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  background: var(--color-light-blue);
  border: 1px solid rgba(0,77,180,.2);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  display: inline-block;
  margin-bottom: var(--space-4);
  letter-spacing: 0.05em;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-semi);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.service-card__de {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

/* Price badge — top-right corner, mirrors .service-card__badge
   but in Primary Blue to signal a positive highlight           */
.service-card__price-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.06em;
  background: var(--color-light-blue);
  color: var(--color-primary);
  border: 1px solid rgba(0,77,180,.25);
  border-radius: 99px;
  padding: 2px var(--space-3);
  white-space: nowrap;
}

.service-card__features { display: flex; flex-direction: column; gap: var(--space-2); }

.service-card__features li {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  padding-left: var(--space-6);
  position: relative;
}

.service-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--weight-bold);
}

.service-card--coming-soon {
  border-style: dashed;
  opacity: 0.82;
}

.service-card--coming-soon:hover { opacity: 1; }

.service-card__badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-pale-blue);
  color: var(--color-slate);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  padding: 2px var(--space-3);
}

/* ── 10. MISSION ─────────────────────────────────────────────── */
.mission__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: start;
}

.mission__statements {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-top: var(--space-6);
}

.mission__item {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

/* Large decorative symbols in Light Blue */
.mission__number {
  font-size: var(--text-4xl);
  color: var(--color-light-blue);
  line-height: 1;
  flex-shrink: 0;
  user-select: none;
}

.mission__item h4 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.mission__item p {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.7;
}

/* Quote block — Deep Navy + diamond texture, mirrors hero */
.mission__quote-wrap {
  position: sticky;
  top: calc(var(--header-height) + var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* The dark navy box wraps only the quote itself, not the image */
.mission__quote-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-navy);
}

.mission__quote-texture { border-radius: var(--radius-lg); }

.mission__quote {
  position: relative;
  z-index: 1;
  padding: var(--space-10);
}

.mission__quote::before {
  content: '\201C';
  position: absolute;
  top: -8px;
  left: var(--space-6);
  font-family: var(--font-display);
  font-size: 8rem;
  color: rgba(255,255,255,.07);
  line-height: 1;
  pointer-events: none;
}

/* Tagline treatment: Georgia Italic, white on dark */
.mission__quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  color: var(--color-white);
  line-height: 1.45;
  margin-bottom: var(--space-6);
  position: relative;
  z-index: 1;
}

.mission__quote footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  position: relative;
  z-index: 1;
}

.mission__quote cite {
  font-style: normal;
  font-size: var(--text-sm);
  color: rgba(255,255,255,.65);
}

.mission__quote span {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.4);
}

/* ── 11. CONTACT ─────────────────────────────────────────────── */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact__item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-light-blue);
  border: 1px solid rgba(0,77,180,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact__item h4 {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
}

.contact__item a {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-ink);
  transition: color var(--transition-fast);
}

.contact__item a:hover { color: var(--color-primary); }

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

.contact__note {
  background: var(--color-light-blue);
  border: 1px solid rgba(0,77,180,.18);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.6;
}

/* Form */
.contact__form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-10);
  box-shadow: var(--shadow-md);
}

.contact__form { display: flex; flex-direction: column; gap: var(--space-4); }

.form__group { display: flex; flex-direction: column; gap: var(--space-2); }

.form__group label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-ink);
}

.form__group input,
.form__group select,
.form__group textarea {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink);
  background: var(--color-pale-blue);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--color-ink-faint); }

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,77,180,.13);
  background: var(--color-white);
}

.form__group textarea { resize: vertical; min-height: 100px; }

.form__group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A6B82' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

.form__error {
  font-size: var(--text-xs);
  color: #c0392b;
  min-height: 1rem;
}

.form__group input.is-invalid,
.form__group select.is-invalid,
.form__group textarea.is-invalid { border-color: #c0392b; }

.form__success {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: var(--weight-medium);
  text-align: center;
  min-height: 1.5rem;
}

/* ── Role toggle ─────────────────────────────────────────────
   Pill-style toggle between Student and Tutor modes           */
.form__toggle {
  display: flex;
  background: var(--color-pale-blue);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
  margin-bottom: var(--space-4);
}

.form__toggle-btn {
  flex: 1;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-ink-muted);
  background: transparent;
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  cursor: pointer;
  transition: background var(--transition-normal),
              color var(--transition-normal),
              box-shadow var(--transition-normal);
}

.form__toggle-btn--active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 1px 4px rgba(0,77,180,.25);
}

.form__toggle-btn:not(.form__toggle-btn--active):hover {
  color: var(--color-ink);
  background: rgba(0,77,180,.07);
}

/* ── Fieldset visibility ─────────────────────────────────────
   Tutor fields hidden by default; JS toggles aria-hidden
   and the .is-hidden utility class                            */
.form__tutor-fields {
  display: contents; /* children participate in form flow */
}

.form__tutor-fields.is-hidden,
.form__student-fields.is-hidden {
  display: none;
}

/* ── File upload ─────────────────────────────────────────────
   Hide the native input; style the label as the visible control */
.form__label-hint {
  font-weight: var(--weight-regular);
  font-size: var(--text-xs);
  color: var(--color-ink-faint);
}

.form__file-wrap {
  position: relative;
}

.form__file-input {
  /* Visually hidden but still accessible and focusable */
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.form__file-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  background: var(--color-pale-blue);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast),
              background var(--transition-fast),
              color var(--transition-fast);
}

.form__file-label:hover,
.form__file-input:focus + .form__file-label {
  border-color: var(--color-primary);
  background: var(--color-white);
  color: var(--color-ink);
}

/* Show a solid border and file name once a file is chosen */
.form__file-label.has-file {
  border-style: solid;
  border-color: var(--color-primary);
  color: var(--color-ink);
  background: var(--color-white);
}

.form__file-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-light-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-base);
  color: var(--color-primary);
  font-weight: var(--weight-bold);
}

/* ── 12. TUTORS ──────────────────────────────────────────────── */
.tutors__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: start;
}

.tutors__text p {
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.tutors__sub-heading {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  color: var(--color-ink);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

/* Requirements list */
.tutors__requirements {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.tutors__requirements li {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.tutors__req-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-light-blue);
  border: 1px solid rgba(0,77,180,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  margin-top: 2px;
}

.tutors__requirements strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.tutors__requirements p {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

/* CTA card — Deep Navy + texture, mirrors mission quote block */
.tutors__cta-wrap {
  position: sticky;
  top: calc(var(--header-height) + var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* The dark navy box wraps only the CTA content, not the image */
.tutors__cta-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-navy);
}

.tutors__cta-texture {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
       45deg,
       rgba(255,255,255,.06) 0px,
       rgba(255,255,255,.06) 1px,
       transparent 1px,
       transparent 20px
    ),
    repeating-linear-gradient(
      -45deg,
      rgba(255,255,255,.06) 0px,
      rgba(255,255,255,.06) 1px,
      transparent 1px,
      transparent 20px
    );
  pointer-events: none;
}

.tutors__cta {
  position: relative;
  z-index: 1;
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.tutors__cta-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-light-blue);
}

.tutors__cta-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  line-height: 1.2;
}

.tutors__cta p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.72);
  line-height: 1.7;
  margin: 0;
}

/* "Get in Touch" button — sits at the bottom of the card */
.tutors__cta-btn {
  align-self: flex-start;
  margin-top: var(--space-2);
}

/* ── Right-column flex layout (card + image stacked) ─────────── */
.about__card-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* ── Shared image placeholder ────────────────────────────────────
   Replace with a real <img> tag when images are ready.
   To swap in an image, replace the entire <figure> element with:
     <img src="your-image.jpg" alt="Description"
          class="section__image" />
   and add .section__image { width:100%; border-radius: var(--radius-lg); }   */
.section__image-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: var(--color-pale-blue);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--color-ink-faint);
  overflow: hidden;
}

.section__image-placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.35;
}

.section__image-placeholder figcaption {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
}

/* Real image style — ready to use when you swap the placeholder */
.section__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
  display: block;
}

/* ── 13. FOOTER ──────────────────────────────────────────────── */
/* Deep Navy + diamond texture — consistent dark surface treatment */
.site-footer {
  position: relative;
  background-color: var(--color-navy);
  padding-block: var(--space-12);
  overflow: hidden;
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
  text-align: center;
}

/* Footer logo: Georgia Bold, white */
.site-footer__logo {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

/* Tagline in footer: Georgia Italic, Light Blue per brand guidelines */
.site-footer__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-light-blue);
  margin-bottom: var(--space-1);
}

.site-footer__full-name {
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: rgba(255,255,255,.38);
  text-transform: uppercase;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-6);
}

.site-footer__nav a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.52);
  transition: color var(--transition-fast);
}

.site-footer__nav a:hover { color: var(--color-light-blue); }

.site-footer__copy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.28);
  letter-spacing: 0.04em;
}

/* ── 13. KEYFRAMES ───────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50%       { transform: scaleY(0.6); opacity: 0.4; }
}

/* ── 14. RESPONSIVE ──────────────────────────────────────────── */
@media (min-width: 600px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .about__inner,
  .mission__inner,
  .tutors__inner { grid-template-columns: 1fr 1fr; }

  .contact__grid { grid-template-columns: 1fr 1.3fr; }

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

@media (max-width: 767px) {
  .nav__toggle { display: flex; }

  /* Scale down logo lockup on small screens so it doesn't crowd the hamburger */
  .nav__logo-wordmark  { font-size: 1.5rem; }
  .nav__logo-rule      { height: 1.85rem; }
  .nav__logo-descriptor { font-size: 0.56rem; }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-4) var(--space-6) var(--space-6);
    gap: var(--space-1);
    box-shadow: var(--shadow-md);
  }

  .nav__links.is-open { display: flex; }

  .nav__links a {
    padding-block: var(--space-3);
    font-size: var(--text-base);
    border-bottom: 1px solid var(--color-border);
  }

  .nav__links li:last-child a { border-bottom: none; margin-top: var(--space-2); }
  .nav__cta { display: block !important; text-align: center; }

  .hero__stats { flex-wrap: wrap; gap: var(--space-4); }
  .hero__stat-divider { display: none; }

  .contact__form-wrap { padding: var(--space-6); }
  .mission__quote-wrap,
  .tutors__cta-wrap { position: static; }
}

/* ── 15. FOCUS & ACCESSIBILITY ───────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal { opacity: 1; transform: none; }
}