/* ============================================================
   ANALYTIQ ACADEMY — style.css
   Version 1.0 — Avril 2026
   Stack : HTML + CSS + JS vanilla — zero framework
   ============================================================ */

/* ─── GOOGLE FONTS ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Playfair+Display:ital,wght@0,700;1,400&display=swap');

/* ─── CSS VARIABLES ────────────────────────────────────────── */
:root {
  --navy:       #1a2744;
  --navy-deep:  #111d36;
  --white:      #ffffff;
  --grey-bg:    #f5f7fa;
  --gold:       #c9a84c;
  --gold-light: #e0c070;
  --red:        #e63946;
  --orange:     #e8a020;
  --green:      #2d6a4f;
  --text:       #1a1a1a;
  --text-light: #555555;
  --text-muted: #888888;
  --border:     #e2e8f0;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', -apple-system, sans-serif;

  --radius:     8px;
  --radius-lg:  16px;
  --shadow:     0 2px 16px rgba(26,39,68,0.08);
  --shadow-md:  0 8px 40px rgba(26,39,68,0.14);
  --shadow-lg:  0 20px 60px rgba(26,39,68,0.20);

  --header-h:   72px;
  --max-w:      1160px;
  --section-py: 96px;
}

/* ─── RESET ─────────────────────────────────────────────────── */
*, *::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: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* ─── TYPOGRAPHY ─────────────────────────────────────────────── */
h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
}

h3 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--navy);
}

p {
  color: var(--text-light);
  line-height: 1.7;
}

/* ─── LAYOUT HELPERS ─────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

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

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

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

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

/* ─── BADGE ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge--gold {
  background: var(--gold);
  color: var(--navy);
}

.badge--green {
  background: #d1fae5;
  color: var(--green);
  border: 1px solid #a7f3d0;
}

.badge--grey {
  background: #e5e7eb;
  color: #6b7280;
}

.badge--red {
  background: #fde8ea;
  color: var(--red);
  border: 1px solid #fca5a5;
}

.badge--navy {
  background: var(--navy);
  color: var(--gold);
  border: 1px solid var(--gold);
}

/* ─── BUTTONS ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
}

.btn--primary:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201,168,76,0.35);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}

.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
}

.btn--navy {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.btn--navy:hover {
  background: var(--navy-deep);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--gold {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
}

.btn--gold:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201,168,76,0.4);
}

.btn--ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--navy);
  background: var(--grey-bg);
}

.btn--sm {
  padding: 9px 18px;
  font-size: 0.82rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ─── HEADER ─────────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 12px rgba(26,39,68,0.06);
  transition: box-shadow 0.3s ease;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--navy);
  text-transform: uppercase;
  text-decoration: none;
  flex-shrink: 0;
}

.header__logo span {
  color: var(--gold);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header__nav a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.header__nav a:hover {
  color: var(--navy);
}

.header__nav a:hover::after {
  transform: scaleX(1);
}

.header__cta {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 16px;
  border: 1.5px solid var(--navy);
  border-radius: var(--radius);
  color: var(--navy);
  transition: all 0.2s;
  white-space: nowrap;
}

.header__cta:hover {
  background: var(--navy);
  color: var(--white);
}

.header__cta-arrow {
  font-size: 0.8rem;
  opacity: 0.7;
}

/* ─── LANGUAGE SWITCHER ──────────────────────────────────────── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
}

.lang-switcher button {
  background: none;
  border: none;
  padding: 6px 11px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.18s;
  line-height: 1;
}

.lang-switcher button:first-child {
  border-right: 1.5px solid var(--border);
}

.lang-switcher button.active {
  background: var(--navy);
  color: var(--white);
}

.lang-switcher button:not(.active):hover {
  background: var(--grey-bg);
  color: var(--navy);
}

/* Hide/show language content */
[data-lang] { display: none; }
[data-lang].lang-visible { display: block; }
[data-lang-inline] { display: none; }
[data-lang-inline].lang-visible { display: inline; }

/* Hamburger */
.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
  z-index: 1001;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.header__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__burger.active span:nth-child(2) {
  opacity: 0;
}

.header__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  flex-direction: column;
  gap: 4px;
  z-index: 999;
  box-shadow: var(--shadow-md);
  animation: slideDown 0.25s ease;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.mobile-menu a:hover {
  color: var(--navy);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu .mobile-cta {
  margin-top: 12px;
  padding: 14px 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  background: var(--grey-bg);
  border-radius: var(--radius);
  border: 2px solid var(--navy);
  border-bottom: 2px solid var(--navy);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── HERO ───────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--header-h);
  position: relative;
  overflow: hidden;
}

/* Subtle background texture for hero */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(201,168,76,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(255,255,255,0.03) 0%, transparent 60%);
  pointer-events: none;
}

/* Decorative grid lines */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 0 24px;
  animation: fadeUp 0.8s ease both;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
  padding: 6px 16px;
  border: 1px solid rgba(201,168,76,0.4);
  border-radius: 100px;
}

.hero h1 {
  color: var(--white);
  font-family: var(--font-display);
  margin-bottom: 24px;
  font-size: clamp(2.4rem, 6vw, 3.8rem);
}

.hero h1 em {
  color: var(--gold);
  font-style: italic;
}

.hero__desc {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 560px;
}

/* ─── PILLARS SECTION ────────────────────────────────────────── */
.pillars {
  padding: var(--section-py) 0;
  background: var(--white);
}

.pillars__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}

.pillar-card {
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pillar-card--dark {
  background: var(--navy);
  border-color: var(--navy);
}

.pillar-card--light {
  background: var(--grey-bg);
}

.pillar-card__number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
  opacity: 0.15;
  position: absolute;
  top: 20px;
  right: 24px;
}

.pillar-card--dark .pillar-card__number {
  color: var(--white);
}

.pillar-card--light .pillar-card__number {
  color: var(--navy);
}

.pillar-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.pillar-card__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
  line-height: 1.3;
}

.pillar-card--dark .pillar-card__title {
  color: var(--white);
}

.pillar-card__sub {
  font-size: 0.82rem;
  margin-bottom: 20px;
  line-height: 1.5;
}

.pillar-card--dark .pillar-card__sub {
  color: rgba(255,255,255,0.6);
}

.pillar-card--light .pillar-card__sub {
  color: var(--text-light);
}

.pillar-card__quote {
  font-style: italic;
  font-size: 0.85rem;
  margin-bottom: 24px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.pillar-card--dark .pillar-card__quote {
  color: rgba(255,255,255,0.5);
}

.pillar-card--light .pillar-card__quote {
  color: var(--text-muted);
}

/* ─── MISSION SECTION ────────────────────────────────────────── */
.mission {
  background: var(--grey-bg);
  padding: var(--section-py) 0;
  text-align: center;
}

.mission__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.mission h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--navy);
  margin-bottom: 24px;
}

.mission__text {
  max-width: 580px;
  margin: 0 auto 24px;
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
}

.mission__sig {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.mission__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1.5px solid var(--gold);
  padding-bottom: 2px;
  transition: opacity 0.2s;
}

.mission__link:hover {
  opacity: 0.7;
}

/* ─── NEWSLETTER SECTION ─────────────────────────────────────── */
.newsletter-section {
  background: var(--navy);
  padding: var(--section-py) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 80% at 50% 100%, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.newsletter-section h2 {
  color: var(--white);
  margin-bottom: 12px;
}

.newsletter-section p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
  font-size: 0.95rem;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto 16px;
  flex-wrap: wrap;
}

.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 240px;
  padding: 14px 18px;
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-form input[type="email"]::placeholder {
  color: rgba(255,255,255,0.35);
}

.newsletter-form input[type="email"]:focus {
  border-color: var(--gold);
}

.newsletter-form button {
  padding: 14px 24px;
  background: var(--gold);
  color: var(--navy);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

.newsletter-note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}

/* ─── PAGE HERO (inner pages) ────────────────────────────────── */
.page-hero {
  background: var(--navy);
  padding: calc(var(--header-h) + 64px) 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(201,168,76,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
}

.page-hero__eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.page-hero h1 {
  color: var(--white);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}

.page-hero p {
  color: rgba(255,255,255,0.65);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto 24px;
}

.page-hero__badges {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-hero__badges span {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 5px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 100px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
}

/* ─── VOLUME CARDS ───────────────────────────────────────────── */
.volumes {
  padding: var(--section-py) 0;
}

.volumes__grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 56px;
}

.vol-card {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  background: var(--white);
  display: flex;
  gap: 32px;
  align-items: flex-start;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.vol-card:hover {
  box-shadow: var(--shadow);
  border-color: #cbd5e1;
}

.vol-card--published {
  border-color: rgba(45,106,79,0.3);
  background: linear-gradient(135deg, rgba(45,106,79,0.02) 0%, var(--white) 60%);
}

.vol-card--published:hover {
  border-color: rgba(45,106,79,0.5);
}

.vol-card__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--navy);
  opacity: 0.12;
  line-height: 1;
  flex-shrink: 0;
  min-width: 56px;
  text-align: center;
  align-self: center;
}

.vol-card__body {
  flex: 1;
  min-width: 0;
}

.vol-card__header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.vol-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}

.vol-card__meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  font-weight: 500;
}

.vol-card__quote {
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 20px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.vol-card__doi {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 12px;
  font-family: 'Courier New', monospace;
}

.vol-card__doi a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.vol-card__doi a:hover {
  color: var(--navy);
}

.vol-card__actions {
  display: flex;
  flex-shrink: 0;
  flex-direction: column;
  gap: 10px;
  align-self: center;
  min-width: 180px;
}

/* ─── STATS BAR ──────────────────────────────────────────────── */
.stats-bar {
  background: var(--navy);
  padding: 40px 0;
}

.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
}

.stat-item {
  padding: 0 24px;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item__value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-item__label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ─── SECTION HEADER ──────────────────────────────────────────── */
.section-header {
  margin-bottom: 56px;
}

.section-header--center {
  text-align: center;
}

.section-header__eyebrow {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.section-header h2 {
  margin-bottom: 14px;
}

.section-header p {
  font-size: 0.95rem;
  max-width: 520px;
}

.section-header--center p {
  margin: 0 auto;
}

/* ─── DIVIDER ────────────────────────────────────────────────── */
.divider {
  width: 48px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin: 20px 0;
}

.divider--center {
  margin: 20px auto;
}

/* ─── FOOTER ─────────────────────────────────────────────────── */
.footer {
  background: var(--navy-deep);
  padding: 48px 0 32px;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}

.footer__brand {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.footer__brand span {
  color: var(--gold);
}

.footer__tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  margin-top: 4px;
}

.footer__nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  align-items: center;
}

.footer__nav a {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  transition: color 0.2s;
}

.footer__nav a:hover {
  color: var(--white);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer__copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}

.footer__license {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
}

/* ─── ANIMATIONS ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up {
  animation: fadeUp 0.6s ease both;
}

.fade-up--delay-1 { animation-delay: 0.1s; }
.fade-up--delay-2 { animation-delay: 0.2s; }
.fade-up--delay-3 { animation-delay: 0.3s; }

/* ─── UTILITY ────────────────────────────────────────────────── */
.text-white { color: var(--white); }
.text-gold  { color: var(--gold); }
.text-muted { color: var(--text-muted); }
.mt-4  { margin-top: 16px; }
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.mb-4  { margin-bottom: 16px; }
.mb-6  { margin-bottom: 24px; }
.mb-8  { margin-bottom: 32px; }

/* ─── RESPONSIVE ─────────────────────────────────────────────── */

/* Tablet — 768px */
@media (max-width: 1024px) {
  :root {
    --section-py: 72px;
  }

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

  .pillars__grid .pillar-card:last-child {
    grid-column: 1 / -1;
  }

  .stats-bar__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 0;
  }

  .stat-item:nth-child(2) { border-right: none; }

  .vol-card {
    flex-direction: column;
    gap: 20px;
  }

  .vol-card__number {
    font-size: 2rem;
    min-width: auto;
  }

  .vol-card__actions {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: auto;
    align-self: flex-start;
  }
}

/* Mobile — 768px */
@media (max-width: 768px) {
  :root {
    --section-py: 56px;
    --header-h:   60px;
  }

  .header__nav,
  .header__cta {
    display: none;
  }

  .header__burger {
    display: flex;
  }

  .pillars__grid {
    grid-template-columns: 1fr;
  }

  .pillars__grid .pillar-card:last-child {
    grid-column: auto;
  }

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

  .stat-item {
    padding: 0 16px;
  }

  .btn-group {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .footer__top {
    flex-direction: column;
    gap: 24px;
  }

  .footer__nav {
    gap: 16px;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .vol-card {
    padding: 24px;
  }

  .page-hero {
    padding-bottom: 48px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input[type="email"] {
    min-width: auto;
    width: 100%;
  }
}

/* Small mobile — 375px */
@media (max-width: 375px) {
  .container {
    padding: 0 16px;
  }

  .hero__content {
    padding: 0 16px;
  }

  .vol-card__actions {
    flex-direction: column;
  }
}