/* ===== DESIGN TOKENS ===== */
:root {
  --clr-primary: #E8630A;
  --clr-primary-dark: #C4510A;
  --clr-primary-light: #FFF3E8;
  --clr-secondary: #1B6B3A;
  --clr-secondary-light: #E8F5EE;
  --clr-accent: #FFC857;
  --clr-dark: #1A1A2E;
  --clr-text: #2D2D3A;
  --clr-text-light: #6B7280;
  --clr-bg: #FAFAFA;
  --clr-white: #FFFFFF;
  --clr-border: #E5E7EB;
  --clr-danger: #DC2626;
  --clr-warning: #F59E0B;
  --clr-info: #3B82F6;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Vazirmatn', system-ui, sans-serif;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.8;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img, svg { max-width: 100%; display: block; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== TOP BAR ===== */
.top-bar {
  background: var(--clr-dark);
  color: var(--clr-white);
  text-align: center;
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  transition: box-shadow var(--transition);
}
.site-header:hover { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--clr-primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-text);
  transition: background var(--transition), color var(--transition);
}
.main-nav a:hover {
  background: var(--clr-primary-light);
  color: var(--clr-primary);
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #1A1A2E 0%, #16213E 40%, #0F3460 100%);
  color: var(--clr-white);
  padding: 120px 0 100px;
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.hero-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.08;
}
.hero-circle-1 {
  width: 500px;
  height: 500px;
  background: var(--clr-primary);
  top: -120px;
  left: -100px;
}
.hero-circle-2 {
  width: 350px;
  height: 350px;
  background: var(--clr-accent);
  bottom: -80px;
  right: -60px;
}
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--clr-bg);
  clip-path: ellipse(70% 100% at 50% 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.08rem;
  font-weight: 300;
  line-height: 2;
  opacity: 0.9;
  max-width: 650px;
  margin: 0 auto 40px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--clr-accent);
}
.stat-label {
  font-size: 0.85rem;
  opacity: 0.8;
  font-weight: 300;
}
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 10px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-primary-dark);
  border-color: var(--clr-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,99,10,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--clr-white);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--clr-white);
    flex-direction: column;
    align-items: stretch;
    padding: 80px 24px 24px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition);
    z-index: 999;
  }
  .main-nav.open { right: 0; }
  .main-nav a {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: var(--radius);
  }
  .menu-toggle { display: flex; }
  .hero { padding: 80px 0 70px; min-height: auto; }
  .hero h1 { font-size: 1.6rem; }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 1.8rem; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; }
}