/* ============================================================
   EduPortal — Asosiy Stil Fayli
   ============================================================ */

:root {
  --navy: #0a1628;
  --deep: #0d1f3c;
  --blue: #1a3a6b;
  --accent: #e8a020;
  --gold: #f5c842;
  --light: #f4f1eb;
  --white: #ffffff;
  --text: #2c2c2c;
  --muted: #7a7a8c;
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--light);
  color: var(--text);
  overflow-x: hidden;
}

/* ---- NAV ---- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 68px;
  border-bottom: 1px solid rgba(232, 160, 32, 0.2);
}

.logo {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 1px;
}

.logo span { color: var(--accent); }

nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
}

nav ul li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all 0.2s;
}

nav ul li a:hover,
nav ul li a.active {
  background: rgba(232, 160, 32, 0.15);
  color: var(--accent);
}

/* ---- PAGE HEADER ---- */
.page-header {
  background: linear-gradient(135deg, var(--navy), var(--deep));
  padding: 110px 48px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232, 160, 32, 0.07) 0%, transparent 70%);
  border-radius: 50%;
}

.section-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  position: relative;
}

.page-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 16px;
  position: relative;
}

.page-header p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.65);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.7;
  position: relative;
}

/* ---- FILTERS ---- */
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  align-items: center;
}

.filter-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  margin-right: 6px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  background: var(--white);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* ---- SEARCH BOX ---- */
.search-box {
  position: relative;
}

.search-box input {
  padding: 10px 16px 10px 42px;
  border-radius: 20px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  background: var(--white);
  font-size: 14px;
  width: 240px;
  outline: none;
  transition: border 0.2s;
  font-family: 'DM Sans', sans-serif;
}

.search-box input:focus { border-color: var(--accent); }
.search-box::before {
  content: '🔍';
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
}

/* ---- BUTTONS ---- */
.btn-primary {
  background: var(--accent);
  color: var(--navy);
  padding: 14px 36px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s;
  border: 2px solid var(--accent);
}

.btn-primary:hover {
  background: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(232, 160, 32, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  padding: 14px 36px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.read-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.35);
    transition: all 0.25s ease;
    cursor: pointer;
}

    .read-btn:hover {
        background: linear-gradient(135deg, #1557b0, #0a2f6b);
        box-shadow: 0 6px 18px rgba(26, 115, 232, 0.5);
        transform: translateY(-2px);
    }

    .read-btn:active {
        transform: translateY(0px);
        box-shadow: 0 2px 8px rgba(26, 115, 232, 0.3);
    }

.read-btn-arrow {
    transition: transform 0.25s ease;
}

.read-btn:hover .read-btn-arrow {
    transform: translateX(4px);
}
/* ---- FOOTER ---- */
footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  padding: 36px 48px;
  font-size: 14px;
  border-top: 1px solid rgba(232, 160, 32, 0.2);
}

footer a { color: var(--accent); text-decoration: none; }

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

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  nav ul { display: none; }
  .page-header { padding: 90px 20px 50px; }
  .search-box { margin-left: 0; }
  .search-box input { width: 100%; }
}