@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=Nunito:wght@400;600;700;800&display=swap');

:root {
  --primary: #0d3d2e;
  --primary-dark: #061f17;
  --accent: #10b981;
  --accent2: #059669;
  --light: #f0faf5;
  --white: #ffffff;
  --text: #0f2419;
  --muted: #4d7a62;
  --border: #b6ddc9;
  --success: #047857;
  --danger: #e74c3c;
  --shadow: 0 4px 24px rgba(13,61,46,0.10);
  --shadow-lg: 0 10px 40px rgba(13,61,46,0.18);
  --max-w: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { overflow-x: hidden; }
body {
  font-family: 'Nunito', sans-serif;
  background: var(--light);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

/* ===== NAVBAR ===== */
nav {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 16px rgba(0,0,0,0.22);
  width: 100%;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}
.nav-logo {
  color: var(--accent);
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 900;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  line-height: 1.2;
  min-width: 0;
}
.nav-logo .logo-sub {
  color: rgba(255,255,255,0.55);
  font-family: 'Nunito', sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  display: block;
  white-space: nowrap;
}
.nav-logo-img { height: 40px; width: 40px; object-fit: contain; filter: brightness(0) invert(1); }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1.2; }

.nav-menu { display: flex; align-items: center; gap: 0.15rem; }
.nav-menu > a,
.nav-menu > .dropdown > a {
  color: rgba(255,255,255,0.88);
  text-decoration: none;
  font-size: 0.83rem;
  font-weight: 700;
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  transition: all 0.18s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
}
.nav-menu > a:hover,
.nav-menu > a.active,
.nav-menu > .dropdown > a:hover,
.nav-menu > .dropdown > a.active {
  background: #10b981;
  color: #061f17;
}

/* Dropdown */
.dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 8px 40px rgba(26,58,92,0.18);
  border: 1px solid var(--border);
  min-width: 260px;
  z-index: 300;
  overflow: hidden;
  animation: dropIn 0.15s ease;
}
@keyframes dropIn {
  from { opacity:0; transform:translateY(-6px); }
  to   { opacity:1; transform:translateY(0); }
}
.dropdown-menu.open { display: block; }
.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1.2rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.dropdown-menu a:last-child { border-bottom: none; }
.dropdown-menu a:hover { background: var(--light); color: var(--primary); }
.dropdown-menu a.active { background: #e8f4fd; color: var(--accent2); }
.dropdown-menu a .dm-icon { font-size: 1rem; width: 22px; text-align: center; flex-shrink: 0; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.7rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  line-height: 1;
  flex-shrink: 0;
}

/* Navbar user block */
.nav-user { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.nav-user-info { display: flex; flex-direction: column; align-items: flex-end; }
.nav-user-name { color: white; font-size: 0.82rem; font-weight: 700; white-space: nowrap; max-width: 150px; overflow: hidden; text-overflow: ellipsis; }
.nav-user-tel { color: #10b981; font-size: 0.7rem; font-weight: 600; }
.btn-nav-logout {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.22);
  color: rgba(255,255,255,0.85);
  padding: 0.3rem 0.7rem;
  border-radius: 6px; font-size: 0.76rem; font-weight: 700;
  cursor: pointer; font-family: 'Nunito', sans-serif;
  transition: all 0.18s; white-space: nowrap;
}
.btn-nav-logout:hover { background: var(--danger); border-color: var(--danger); color: white; }
.btn-nav-login {
  background: #10b981; border: none; color: #061f17;
  padding: 0.36rem 0.9rem; border-radius: 6px; font-size: 0.8rem; font-weight: 800;
  cursor: pointer; font-family: 'Nunito', sans-serif; text-decoration: none;
  transition: all 0.18s; white-space: nowrap; display: inline-block;
}
.btn-nav-login:hover { background: #059669; }

.mobile-menu {
  display: none;
  background: var(--primary-dark);
  padding: 0.8rem 1rem 1.2rem;
  flex-direction: column;
  gap: 0.2rem;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  width: 100%;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: rgba(255,255,255,0.88);
  text-decoration: none;
  font-size: 0.9rem; font-weight: 600;
  padding: 0.65rem 1rem; border-radius: 8px;
  transition: background 0.15s; display: block;
}
.mobile-menu a:hover { background: rgba(255,255,255,0.08); }
.mobile-menu a.active { background: #10b981; color: #061f17; font-weight: 800; }
.mobile-section-label {
  font-size: 0.68rem; color: rgba(255,255,255,0.38);
  font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.1em; padding: 0.8rem 1rem 0.25rem; margin-top: 0.3rem;
}

/* ===== PAGE HEADER ===== */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white; padding: 2.5rem 1.5rem 2rem;
  text-align: center; position: relative; overflow: hidden; width: 100%;
}
.page-header::before {
  content:''; position:absolute; inset:0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20.5V18H0v5h5v5H0v5h20v-5h15v5H20v5h20V20.5z'/%3E%3C/g%3E%3C/svg%3E");
}
.page-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.3rem, 3vw, 2.1rem);
  font-weight: 900; margin-bottom: 0.4rem;
  position: relative; word-break: break-word;
}
.page-header p { color: rgba(255,255,255,0.65); font-size: 0.9rem; position: relative; }

/* ===== MAIN ===== */
.main {
  max-width: var(--max-w); margin: 0 auto;
  padding: 1.8rem 1.5rem; flex: 1; width: 100%; min-width: 0;
}

/* ===== INFO BOX ===== */
.info-box {
  border-radius: 10px; padding: 0.85rem 1rem;
  font-size: 0.87rem; margin-bottom: 1.2rem;
  display: flex; align-items: flex-start;
  gap: 0.6rem; line-height: 1.55; word-break: break-word;
}
.info-box.blue   { background: #e8f4fd; border: 1px solid #aed6f1; color: #1a5276; }
.info-box.yellow { background: #fef9e7; border: 1px solid #f9e79f; color: #7d6608; }

/* ===== FILE LIST ===== */
.file-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 0.8rem;
}
.file-item {
  background: var(--white); border: 1.5px solid var(--border);
  border-radius: 12px; padding: 0.9rem 1rem;
  display: flex; align-items: center; gap: 0.85rem;
  cursor: pointer; transition: all 0.2s;
  box-shadow: var(--shadow); min-width: 0;
}
.file-item:hover { border-color: var(--accent2); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.file-num {
  width: 40px; height: 40px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 0.88rem; flex-shrink: 0; color: white;
}
.file-num.blue   { background: var(--primary); }
.file-num.orange { background: linear-gradient(135deg,#e67e22,var(--accent)); }
.file-num.green  { background: linear-gradient(135deg,#1abc9c,var(--success)); }
.file-num.red    { background: linear-gradient(135deg,#c0392b,#e74c3c); }
.file-num.purple { background: linear-gradient(135deg,#8e44ad,#9b59b6); }
.file-num.teal   { background: linear-gradient(135deg,#16a085,#1abc9c); }
.file-info { flex: 1; min-width: 0; }
.file-info h3 {
  font-size: 0.9rem; font-weight: 700; color: var(--primary);
  margin-bottom: 0.12rem; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.file-info p { font-size: 0.76rem; color: var(--muted); }
.file-actions { display: flex; gap: 0.4rem; align-items: center; flex-shrink: 0; }
.btn-view {
  background: var(--accent2); color: white; border: none;
  padding: 0.35rem 0.75rem; border-radius: 6px; font-size: 0.78rem; font-weight: 700;
  cursor: pointer; text-decoration: none; transition: background 0.2s;
  white-space: nowrap; font-family: 'Nunito', sans-serif;
}
.btn-view:hover { background: #1a6fa3; }
.btn-dl {
  background: transparent; color: #10b981;
  border: 1.5px solid #10b981; padding: 0.35rem 0.75rem;
  border-radius: 6px; font-size: 0.78rem; font-weight: 700;
  cursor: pointer; text-decoration: none; transition: all 0.2s;
  white-space: nowrap; font-family: 'Nunito', sans-serif;
}
.btn-dl:hover { background: #10b981; color: white; }

/* ===== PDF MODAL ===== */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.82); z-index: 1000;
  align-items: flex-start; justify-content: center; padding: 0;
}
.modal-overlay.open { display: flex; }
.modal {
  background: white; width: 100%; max-width: 900px;
  height: 100dvh; display: flex; flex-direction: column; overflow: hidden;
}
.modal-head {
  background: var(--primary); color: white;
  padding: 0.75rem 1rem;
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 700; font-size: 0.85rem; gap: 0.8rem;
  flex-shrink: 0; min-height: 52px;
}
.modal-head span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.modal-head-actions { display: flex; gap: 0.4rem; align-items: center; flex-shrink: 0; }
.modal-dl-btn {
  background: #10b981; color: #061f17; border: none;
  padding: 0.3rem 0.7rem; border-radius: 5px; font-size: 0.78rem; font-weight: 800;
  cursor: pointer; text-decoration: none; font-family: 'Nunito', sans-serif; white-space: nowrap;
}
.modal-close {
  background: rgba(255,255,255,0.15); border: none; color: white;
  width: 32px; height: 32px; border-radius: 7px; cursor: pointer; font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s; flex-shrink: 0;
}
.modal-close:hover { background: rgba(255,255,255,0.25); }
.modal iframe {
  flex: 1; border: none; display: block; width: 100%;
  overflow: auto; -webkit-overflow-scrolling: touch;
}

/* ===== SINGLE PDF ===== */
.single-pdf-wrap {
  background: var(--white); border-radius: 12px;
  border: 1.5px solid var(--border); overflow: hidden; box-shadow: var(--shadow-lg);
}
.single-pdf-head {
  background: var(--primary); color: white; padding: 0.9rem 1.2rem;
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 700; font-size: 0.88rem; gap: 0.8rem;
}
.single-pdf-head span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.single-pdf-wrap iframe {
  width: 100%; height: 80vh; border: none; display: block;
  overflow: auto; -webkit-overflow-scrolling: touch;
}

/* ===== FOOTER ===== */
footer {
  background: var(--primary); color: rgba(255,255,255,0.6);
  text-align: center; padding: 1.2rem 1.5rem;
  font-size: 0.8rem; margin-top: auto; word-break: break-word;
}
footer a { color: #10b981; text-decoration: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .nav-menu { display: none; }
  .nav-toggle { display: block; }
}
@media (max-width: 768px) {
  .nav-inner { padding: 0 1rem; height: 58px; }
  .nav-logo { font-size: 1rem; }
  .mobile-menu { max-height: calc(100vh - 58px); }
  .main { padding: 1rem 0.9rem; }
  .page-header { padding: 1.8rem 1rem 1.5rem; }
  .file-list { grid-template-columns: 1fr; gap: 0.65rem; }
  .file-item { padding: 0.8rem 0.9rem; }
  .file-info h3 { font-size: 0.86rem; }
  .modal-overlay { padding: 0; align-items: flex-start; }
  .modal { height: 100dvh; height: 100vh; border-radius: 0; max-width: 100%; }
  .modal iframe { overflow-y: scroll; -webkit-overflow-scrolling: touch; }
  .single-pdf-wrap { border-radius: 10px; }
  .single-pdf-wrap iframe { height: 70vh; }
  .single-pdf-head { padding: 0.75rem 1rem; font-size: 0.82rem; }
  /* Mobilda nav-user: faqat chiqish tugmasi */
  .nav-user-info { display: none; }
  .nav-user { gap: 0.3rem; }
}
@media (max-width: 480px) {
  .nav-logo .logo-sub { display: none; }
  .nav-logo { font-size: 0.88rem; }
  .file-num { width: 36px; height: 36px; font-size: 0.8rem; border-radius: 8px; }
  .file-actions { gap: 0.3rem; }
  .btn-view, .btn-dl { font-size: 0.73rem; padding: 0.3rem 0.6rem; }
  .modal-head { font-size: 0.8rem; padding: 0.65rem 0.85rem; }
  .modal-dl-btn { font-size: 0.74rem; padding: 0.27rem 0.6rem; }
  .single-pdf-wrap iframe { height: 65vh; }
  .info-box { font-size: 0.82rem; padding: 0.75rem 0.85rem; }
  .btn-nav-logout { font-size: 0.72rem; padding: 0.28rem 0.55rem; }
  .btn-nav-login { font-size: 0.75rem; padding: 0.3rem 0.7rem; }
}