/* ---------- Fonts ---------- */
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

/* ---------- Base ---------- */
:root {
  --color-primary: #1f6feb;
  --color-primary-dark: #1755b8;
  --color-accent: #f2a03d;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7fb;
  --color-text: #1c2430;
  --color-text-muted: #5a6675;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(20, 40, 80, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Vazirmatn', 'Segoe UI', Tahoma, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.ltr { direction: ltr; unicode-bidi: embed; }

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

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e6ebf2;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
}

.brand-logo { width: 40px; height: 40px; }

.brand-name { font-weight: 700; font-size: 1.25rem; }

.main-nav {
  display: flex;
  gap: 22px;
  margin-inline-start: auto;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-weight: 400;
  transition: color 0.2s;
}

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

.lang-toggle {
  border: 1px solid #d4dce6;
  background: #fff;
  color: var(--color-text);
  border-radius: 999px;
  padding: 6px 16px;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.lang-toggle:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, #eef4ff 0%, #ffffff 70%);
  padding: 72px 0;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero-text { flex: 1.1; }
.hero-graphic { flex: 1; }

.hero-text h1 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}

.hero-text p {
  color: var(--color-text-muted);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 12px 32px;
  font-weight: 700;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
}

.section-text {
  color: var(--color-text-muted);
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

/* ---------- Board ---------- */
.board-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.member-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.2s;
}

.member-card:hover { transform: translateY(-4px); }

.member-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 18px;
  border: 4px solid var(--color-bg-alt);
}

.member-name { font-size: 1.15rem; font-weight: 700; }
.member-role { color: var(--color-text-muted); font-size: 0.95rem; }

/* ---------- Contact ---------- */
.contact-inner { text-align: center; }

.contact-details {
  margin: 24px 0 32px;
  color: var(--color-text-muted);
}

.contact-details a { color: var(--color-primary); text-decoration: none; }
.contact-details a:hover { text-decoration: underline; }

/* ---------- Footer ---------- */
.site-footer {
  background: #101826;
  color: #aab4c2;
  text-align: center;
  padding: 24px 0;
  font-size: 0.9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  .hero-inner { flex-direction: column; text-align: center; }
  .board-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .header-inner { flex-wrap: wrap; gap: 12px; }
  .main-nav { margin-inline-start: 0; order: 3; width: 100%; justify-content: center; }
  .board-grid { grid-template-columns: 1fr; }
  .hero-text h1 { font-size: 1.8rem; }
  .section { padding: 48px 0; }
}