/* ================= ROOT THEME ================= */
:root {
  --bg-color: #172436;
  --text-color: #ffffff;
  --muted-text: #cfd6e0;

  --card-bg: #2f4768;
  --card-gradient: linear-gradient(145deg, #2f4768, #1a2a3b);

  --accent-color: #00bbff;

  --nav-bg: #1d293a;
  --footer-bg: #1d293a;

  --white-card: #ffffff;
  --shadow: 0 10px 30px rgba(0,0,0,0.4);
}

/* ================= LIGHT MODE ================= */
body.light-mode {
  --bg-color: #f4f6f8;
  --text-color: #111111;
  --muted-text: #555;

  --card-bg: #ffffff;
  --card-gradient: linear-gradient(145deg, #ffffff, #e6e6e6);

  --accent-color: #0066ff;

  --nav-bg: #ffffff;
  --footer-bg: #e9e9e9;

  --white-card: #ffffff;
  --shadow: 0 10px 25px rgba(0,0,0,0.15);
}

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

html, body {
  direction: rtl;
  font-family: 'Inter', sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont,
               'Segoe UI', Roboto, sans-serif;
}

main {
  flex: 1;
}

/* ================= NAVBAR ================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--nav-bg);
  box-shadow: var(--shadow);
  transition: 0.4s;
}

.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 45px;
}

.nav-menu {
  display: flex;
  gap: 25px;
}

.nav-menu a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 15px;
  position: relative;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: 0.3s;
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  gap: 10px;
}

.nav-btn {
  color: var(--text-color);
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  border: 1px solid var(--accent-color);
  transition: 0.3s;
}

.nav-btn.register {
  background: var(--accent-color);
  color: #fff;
}

.nav-btn:hover {
  opacity: 0.85;
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--text-color);
}

/* ================= HERO ================= */
.hero {
  padding: 100px 20px 60px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  color: var(--accent-color);
  margin-bottom: 20px;
}

.hero p {
  max-width: 700px;
  margin: auto;
  line-height: 1.7;
  color: var(--muted-text);
}

/* ================= WHITE CARD WRAPPER ================= */
.cards-wrapper {
  background: var(--white-card);
  padding: 30px;
  border-radius: 20px;
  max-width: 1200px;
  margin: 50px auto;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.cards-wrapper .card {
  flex: 0 0 300px;
}

/* ================= CARDS ================= */
.card {
  flex: 0 0 300px;   /* ← مهم */
  max-width: 300px;
  background: var(--card-gradient);
  color: var(--text-color);
  border-radius: 16px;
  padding: 25px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.card h3 {
  color: var(--accent-color);
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: var(--muted-text);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.6);
}

.cards-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  width: 100%;
  margin: 40px auto;
}

/* ================= SECTIONS ================= */
.section {
  padding: 80px 20px;
  width: 100%;
  max-width: 1200px;
  margin: auto;
  text-align: center;
}

.section h2 {
  font-size: 2.4rem;
  color: var(--accent-color);
  margin-bottom: 30px;
}

.section p {
  max-width: 800px;
  margin: auto;
  color: var(--muted-text);
}

/* ================= FOOTER ================= */
footer,
.footer,
.footer-2 {
  background: var(--footer-bg);
  color: var(--text-color);
  transition: 0.4s;
}

footer {
  padding: 60px 20px;
}

.container1 {
  width: 90%;
  margin: auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.container1 h3 {
  color: var(--accent-color);
  margin-bottom: 15px;
}

.container1 p,
.container1 a {
  color: var(--muted-text);
  text-decoration: none;
  font-size: 14px;
}

.social-icons a {
  display: inline-block;
  width: 40px;
  height: 40px;
  background: var(--accent-color);
  color: #fff;
  line-height: 40px;
  border-radius: 50%;
  margin-right: 10px;
  transition: 0.4s;
}

.social-icons a:hover {
  transform: rotate(360deg) scale(1.2);
}

/* ================= MOBILE ================= */
@media (max-width: 900px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: 260px;
    background: var(--nav-bg);
    flex-direction: column;
    padding: 80px 20px;
    gap: 20px;
    transform: translateX(100%);
    transition: 0.4s;
  }

  .nav-menu.show {
    transform: translateX(0);
  }

  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .cards-wrapper {
    flex-direction: column;
  }

  .card {
    width: 100%;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}