/* فایل: assets/css/style.css - انیمیشن‌های مدرن و حرفه‌ای */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* --- متغیرهای مدرن --- */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #e5e5e5;
  --text-muted: #a1a1aa;
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #06b6d4;
  --border-color: #404040;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* --- ریست و تنظیمات پایه --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  direction: rtl;
  padding-right: 80px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
}

/* --- انیمیشن‌های ورودی --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* --- سایدبار مدرن --- */
.sidebar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 80px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  animation: slideInFromRight 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  margin: 0.5rem 0;
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-secondary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: var(--radius-lg);
}

.nav-link:hover::before,
.nav-link.active::before {
  opacity: 0.1;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.nav-link i {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  transition: transform 0.3s ease;
}

.nav-link:hover i {
  transform: scale(1.1);
}

.nav-link span {
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
}

/* --- محتوای اصلی --- */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}

/* --- هدر تیم --- */
.team-header {
  text-align: center;
  margin-bottom: 4rem;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

.team-logo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  margin-bottom: 1.5rem;
  border: 4px solid var(--accent-primary);
  box-shadow: var(--shadow-xl);
  transition: all 0.3s ease;
  animation: scaleIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s both;
}

.team-logo:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.3);
}

.team-header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.5s both;
}

.team-tagline {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 400;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.6s both;
}

/* --- بخش‌های محتوا --- */
.projects-preview,
.contact {
  margin-bottom: 4rem;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.7s both;
}

.projects-preview h2,
.contact h2 {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
}

.projects-preview h2::after,
.contact h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 2px;
}

/* --- کارت‌های پروژه --- */
.project-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: var(--radius-xl);
}

.project-card:hover::before {
  opacity: 0.05;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-primary);
}

.project-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.project-desc {
  color: var(--text-secondary);
  line-height: 1.6;
}

.see-all-btn {
  display: block;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  margin: 2rem auto 0;
  text-align: center;
  box-shadow: var(--shadow-md);
  width: fit-content;
  max-width: 300px;
}

.see-all-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* --- بخش ارتباط --- */
.contact-icons {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.contact-icons a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 50%;
}

.contact-icons a:hover::before {
  opacity: 0.1;
}

.contact-icons a:hover {
  color: var(--text-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* --- انیمیشن‌های ورودی تدریجی --- */
.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

/* --- ریسپانسیو --- */
@media (max-width: 768px) {
  body {
    padding-right: 0;
  }
  
  .sidebar {
    display: none;
  }
  
  main {
    padding: 1rem;
  }
  
  .team-header h1 {
    font-size: 2rem;
  }
  
  .project-list {
    grid-template-columns: 1fr;
  }
  
  .contact-icons {
    gap: 1rem;
  }
  
  .contact-icons a {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }
}

/* --- انیمیشن‌های پیشرفته --- */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* --- افکت‌های تعاملی --- */
.project-card:active {
  transform: translateY(-4px) scale(0.98);
}

.nav-link:active {
  transform: translateY(-1px) scale(0.95);
}

/* --- اسکرول بار سفارشی --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}