/* ================================================
   The Sleep Initiative – Shared Stylesheet
   ================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:           #05112B;
  --bg-dark:      #030c1e;
  --bg-card:      rgba(255,255,255,0.06);
  --bg-card-hover:rgba(255,255,255,0.10);
  --border:       rgba(255,255,255,0.10);
  --border-hover: rgba(255,255,255,0.22);
  --text:         #ffffff;
  --text-muted:   rgba(255,255,255,0.62);
  --text-dim:     rgba(255,255,255,0.38);
  --accent:       linear-gradient(135deg, #ff6b35 0%, #e91e8c 55%, #7c3aed 100%);
  --accent-color: #e91e8c;
  --radius:       14px;
  --radius-sm:    8px;
  --transition:   0.2s ease;
  --max-w:        1100px;
  --font:         'Montserrat', sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(30,80,180,0.35) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(15,45,110,0.25) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 55% 10%, rgba(40,90,190,0.18) 0%, transparent 60%);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ---------- Typography ---------- */
.label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.label-line {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}
.label-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 300; line-height: 1.1; letter-spacing: -0.02em; }
h1 strong { font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 600; line-height: 1.2; }
h3 { font-size: 1.15rem; font-weight: 600; line-height: 1.3; }
p  { color: var(--text-muted); font-size: 0.93rem; }

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

section { padding: 6rem 0; }

/* ---------- Gradient helpers ---------- */
.gradient-text {
  background: var(--accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(5,17,43,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.nav-logo img { height: 36px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-left: auto;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }

.btn-dsm {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.05rem;
  padding: 0.45rem 1.1rem;
  border-radius: 12px;
  background: var(--accent);
  color: #fff !important;
  transition: opacity var(--transition), transform var(--transition);
  white-space: nowrap;
  line-height: 1.2;
}
.btn-dsm:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-dsm-title {
  font-size: 0.82rem;
  font-weight: 700;
}
.btn-dsm-date {
  font-size: 0.68rem;
  font-weight: 500;
  opacity: 0.85;
}

.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}
.lang-toggle button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text-muted);
  padding: 0.5rem 1.1rem;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.18);
  background: transparent;
  transition: all var(--transition);
  cursor: pointer;
}
.lang-toggle button:hover {
  color: var(--text);
  border-color: rgba(255,255,255,0.35);
}
.lang-toggle button.active {
  color: var(--text);
  border-color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.07);
}

/* Hamburger (mobile) */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: 0.4rem;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--bg-card);
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  border: none;
  color: #fff;
}
.btn-primary:hover { opacity: 0.88; color: #fff; }

.btn-secondary {
  background: linear-gradient(135deg, #1a6cf0 0%, #6d28d9 100%);
  border: none;
  color: #fff;
}
.btn-secondary:hover { opacity: 0.88; color: #fff; transform: translateY(-1px); }

.btn-arrow::after { content: ' ↗'; }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

/* ---------- Tags / Pills ---------- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}
.tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: rgba(255,255,255,0.03);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  padding-top: calc(68px + 16vh);
  padding-bottom: 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(233,30,140,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { max-width: 620px; }
.hero-content h1 { margin-bottom: 1.4rem; }
.hero-content p { font-size: 1rem; max-width: 520px; margin-bottom: 2.2rem; }

.hero-scroll-hint {
  display: none;
  position: absolute;
  bottom: 2rem;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: rgba(255,255,255,0.5);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero-scroll-hint:hover { color: rgba(255,255,255,0.8); }
@media (min-width: 768px) { .hero-scroll-hint { display: flex; } }
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---------- Projects Section ---------- */
.projects-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.proj-tab {
  padding: 0.55rem 1.2rem;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition);
}
.proj-tab:hover { color: var(--text); border-color: var(--border-hover); }
.proj-tab.active {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  color: var(--text);
}

.proj-panels { position: relative; }

.proj-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 1rem;
}
.proj-panel.active { display: grid; }

.proj-panel h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; }
.proj-panel p { margin-bottom: 0.7rem; }
.proj-panel p strong { color: var(--text); font-weight: 600; }

.proj-img {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}
.proj-img img { width: 100%; height: auto; }

/* ---------- Ambition Section ---------- */
.ambition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.ambition-card {
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color var(--transition), background var(--transition);
}
.ambition-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.ambition-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.2rem;
}
.ambition-card h3 { margin-bottom: 0.7rem; font-size: 1.05rem; }

/* ---------- Team Section ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.team-card {
  padding: 1.8rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: border-color var(--transition), background var(--transition);
}
.team-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }

.team-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.team-name { font-size: 1.05rem; font-weight: 700; }
.team-role { color: var(--text-muted); font-size: 0.82rem; line-height: 1.5; }

.btn-link {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: auto;
  transition: all var(--transition);
}
.btn-link:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-card-hover);
}

/* ---------- Partners Section ---------- */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.partner-card {
  padding: 1.8rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition);
}
.partner-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); transform: translateY(-2px); }

.partner-logo-wrap {
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.9rem;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.partner-logo-wrap img { height: 24px; width: auto; object-fit: contain; max-width: 120px; }

.partner-name { font-size: 0.88rem; font-weight: 600; }

.partners-cta { text-align: center; }

/* ---------- Join Us Section ---------- */
.join-section { text-align: center; }
.join-section h2 { margin-bottom: 0.5rem; font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 300; }
.join-section h2 strong { font-weight: 700; }
.join-section p { margin-bottom: 2rem; }
.join-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer lang switcher ---------- */
.footer-lang {
  padding: 1.8rem 2rem;
  display: flex;
  justify-content: center;
  border-top: 1px solid var(--border);
  background: var(--bg-dark);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  background: var(--bg-dark);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.footer-logo img { height: 32px; width: auto; }

.footer-center { text-align: center; }
.footer-center img { height: 50px; width: auto; margin: 0 auto 0.3rem; }

.footer-right { text-align: right; }
.footer-right p { font-size: 0.78rem; margin-bottom: 0.5rem; }
.footer-links { display: flex; gap: 0.8rem; justify-content: flex-end; flex-wrap: wrap; }
.footer-links a { font-size: 0.75rem; color: var(--text-muted); border-bottom: 1px solid transparent; transition: border-color var(--transition), color var(--transition); }
.footer-links a:hover { color: var(--text); border-color: var(--text-muted); }

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  padding: 10rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; right: -10%;
  width: 600px; height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.1) 0%, transparent 65%);
  pointer-events: none;
}

/* ---------- Agenda Page ---------- */
.agenda-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.agenda-card {
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition);
}
.agenda-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }

.agenda-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.agenda-card h3 { font-size: 1.1rem; }
.agenda-card p { font-size: 0.88rem; flex: 1; }
.agenda-card-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }

/* ---------- DSM Page ---------- */
.dsm-logo-wrap {
  margin-bottom: 2rem;
}
.dsm-logo-wrap img {
  height: 80px;
  width: auto;
  border-radius: var(--radius-sm);
}

.dsm-date {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.8rem;
  background: var(--accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dsm-description { max-width: 580px; margin-bottom: 2rem; }
.dsm-description p { margin-bottom: 0.8rem; }
.dsm-description p strong { color: var(--text); }

.dsm-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-bottom: 0; }

.thematics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.thematic-card {
  padding: 1.8rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(124,58,237,0.12) 0%, rgba(233,30,140,0.08) 100%);
  border: 1px solid rgba(124,58,237,0.2);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition);
}
.thematic-card:hover {
  background: linear-gradient(135deg, rgba(124,58,237,0.2) 0%, rgba(233,30,140,0.14) 100%);
  border-color: rgba(124,58,237,0.35);
  transform: translateY(-2px);
}

.thematic-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}
.thematic-icon img { width: 28px; height: 28px; }

.thematic-card h3 { font-size: 0.95rem; font-weight: 600; }

/* ================================================
   Responsive
   ================================================ */

@media (max-width: 900px) {
  .ambition-grid,
  .team-grid,
  .partners-grid,
  .thematics-grid {
    grid-template-columns: 1fr 1fr;
  }

  .proj-panel {
    grid-template-columns: 1fr;
  }
  .proj-img { order: -1; }

  .agenda-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
}

@media (max-width: 700px) {
  section { padding: 4rem 0; }

  .nav-links {
    display: none;
    position: fixed;
    top: 68px;
    left: 0; right: 0;
    background: rgba(7,16,31,0.97);
    backdrop-filter: blur(14px);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem 2rem 2rem;
    gap: 1.2rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { font-size: 1rem; }
  .btn-dsm { width: 100%; justify-content: center; }

  .nav-burger { display: flex; }
  .lang-toggle { margin-left: 0; }

  .nav-inner { gap: 1rem; }

  .ambition-grid,
  .team-grid,
  .partners-grid,
  .thematics-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-right { text-align: center; }
  .footer-links { justify-content: center; }
  .footer-center img { margin: 0 auto 0.3rem; }

  .join-buttons { flex-direction: column; align-items: center; }

  .dsm-actions { flex-direction: column; }
  .dsm-actions .btn { justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .nav-inner { padding: 0 1.2rem; }
  .footer-inner { padding: 0 1.2rem; }
  h1 { font-size: 2rem; }
  .proj-panel { padding: 1.5rem; }
}

/* ================================================
   Utility
   ================================================ */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
[data-lang] { display: block; }