/* ================================================
   தமிழர் குடியரசக் கட்சி — Main Stylesheet
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Tamil:wght@300;400;500;600;700;800;900&family=Catamaran:wght@400;600;700;800;900&display=swap');

/* === CSS VARIABLES === */
:root {
  --red-dark: #8B0000;
  --red: #D60000;
  --red-light: #E53935;
  --gold: #F2A900;
  --gold-dark: #A66B00;
  --gold-light: #FFD54F;
  --black: #0A0A0A;
  --black-mid: #1A1A1A;
  --black-card: #1E1010;
  --white: #FFFFFF;
  --cream: #FFF8E7;
  --text-muted: #C8A882;
  --border-gold: rgba(242, 169, 0, 0.3);
  --shadow-gold: 0 0 30px rgba(242, 169, 0, 0.2);
  --font-tamil: 'Noto Sans Tamil', 'Catamaran', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 80px;
}

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-tamil);
  background: var(--black);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; outline: none; font-family: var(--font-tamil); }
ul { list-style: none; }

/* === TIGER PATTERN BACKGROUND === */
.tiger-pattern {
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(214, 0, 0, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(242, 169, 0, 0.08) 0%, transparent 50%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 40px,
      rgba(242, 169, 0, 0.02) 40px,
      rgba(242, 169, 0, 0.02) 42px
    );
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ================================================
   NAVIGATION
   ================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-gold);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.98);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.nav-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.nav-logo-wrap {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  overflow: hidden;
  background: var(--red-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(242,169,0,0.4);
}

.nav-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-logo-icon {
  font-size: 28px;
  color: var(--gold);
}

.nav-title-wrap { display: flex; flex-direction: column; }

.nav-title-tamil {
  font-size: 1rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.2;
  letter-spacing: 0.5px;
}

.nav-title-english {
  font-size: 0.62rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  border-radius: 1px;
}

.nav-links a:hover { color: var(--gold); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--gold); }
.nav-links a.active::after { transform: scaleX(1); }

.nav-donate-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--black) !important;
  border-radius: 6px;
  font-weight: 800;
  font-size: 0.88rem;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(242,169,0,0.3);
}

.nav-donate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(242,169,0,0.5);
}

.nav-donate-btn::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
  border-radius: 2px;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(10,10,10,0.98);
  border-bottom: 1px solid var(--border-gold);
  padding: 20px;
  z-index: 999;
  backdrop-filter: blur(20px);
}

.mobile-menu.open { display: block; }

.mobile-menu a {
  display: block;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(242,169,0,0.1);
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  transition: var(--transition);
}

.mobile-menu a:hover { color: var(--gold); padding-left: 24px; }
.mobile-menu a:last-child { border-bottom: none; }

/* ================================================
   PAGE LAYOUT
   ================================================ */
.page-main { padding-top: var(--nav-height); min-height: 100vh; }

.section { padding: 80px 0; }
.section-sm { padding: 50px 0; }

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header { text-align: center; margin-bottom: 60px; }

.section-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  padding: 6px 16px;
  border: 1px solid var(--border-gold);
  border-radius: 20px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-title span { color: var(--gold); }

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.gold-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-dark));
  margin: 20px auto 0;
  border-radius: 2px;
}

/* ================================================
   PAGE HERO (inner pages)
   ================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--red-dark) 0%, var(--black) 60%);
  padding: 70px 0 60px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-gold);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 50%, rgba(242,169,0,0.08) 0%, transparent 60%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 30px,
      rgba(242,169,0,0.03) 30px,
      rgba(242,169,0,0.03) 31px
    );
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.page-hero-breadcrumb a { color: var(--gold); transition: var(--transition); }
.page-hero-breadcrumb a:hover { color: var(--gold-light); }

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 600px;
}

/* ================================================
   BUTTONS
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-tamil);
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: var(--black);
  box-shadow: 0 4px 20px rgba(242,169,0,0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(242,169,0,0.5);
}

.btn-outline {
  border: 2px solid var(--gold);
  color: var(--gold);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(242,169,0,0.1);
  transform: translateY(-3px);
}

.btn-red {
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(214,0,0,0.35);
}
.btn-red:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(214,0,0,0.5);
}

.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.1rem; }

/* ================================================
   CARDS
   ================================================ */
.card {
  background: var(--black-card);
  border: 1px solid var(--border-gold);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(242,169,0,0.6);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

/* ================================================
   GRIDS
   ================================================ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ================================================
   FILTER TABS
   ================================================ */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  justify-content: center;
}

.filter-tab {
  padding: 8px 20px;
  border-radius: 25px;
  border: 1px solid var(--border-gold);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-tamil);
  cursor: pointer;
  transition: var(--transition);
}

.filter-tab:hover { border-color: var(--gold); color: var(--gold); }
.filter-tab.active { background: var(--gold); color: var(--black); border-color: var(--gold); }

/* ================================================
   BADGE / TAG
   ================================================ */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.badge-youtube { background: rgba(255,0,0,0.2); color: #FF4444; border: 1px solid rgba(255,0,0,0.3); }
.badge-tiktok { background: rgba(0,200,200,0.15); color: #00C8C8; border: 1px solid rgba(0,200,200,0.3); }
.badge-drive { background: rgba(66,133,244,0.2); color: #4285F4; border: 1px solid rgba(66,133,244,0.3); }
.badge-gold { background: rgba(242,169,0,0.15); color: var(--gold); border: 1px solid var(--border-gold); }
.badge-red { background: rgba(214,0,0,0.2); color: #FF6666; border: 1px solid rgba(214,0,0,0.3); }

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--black);
  border-top: 1px solid var(--border-gold);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand .nav-brand { margin-bottom: 16px; }

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: var(--transition);
}

.social-icon:hover {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
  transform: translateY(-3px);
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-gold);
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col ul li a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-col ul li a i { font-size: 0.75rem; color: var(--gold); }
.footer-col ul li a:hover { color: var(--gold); padding-left: 6px; }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.footer-contact-item i {
  color: var(--gold);
  font-size: 0.9rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.footer-contact-item span {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--border-gold);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom span { color: var(--gold); }

.footer-tagline {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ================================================
   LOADING SPINNER
   ================================================ */
.loading-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 0;
  gap: 16px;
  color: var(--text-muted);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-gold);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ================================================
   EMPTY STATE
   ================================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state i {
  font-size: 3rem;
  color: var(--border-gold);
  margin-bottom: 16px;
}

/* ================================================
   TOAST NOTIFICATION
   ================================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  background: var(--black-card);
  border: 1px solid var(--border-gold);
  border-radius: 10px;
  color: var(--white);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.3s ease;
  box-shadow: var(--shadow-gold);
}

.toast i { color: var(--gold); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ================================================
   UTILITIES
   ================================================ */
.text-gold { color: var(--gold); }
.text-red { color: var(--red); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.fw-900 { font-weight: 900; }
.fw-700 { font-weight: 700; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.gap-12 { gap: 12px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none !important; }

/* ================================================
   ANIMATIONS
   ================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 1024px) {
  .nav-links a { padding: 8px 10px; font-size: 0.85rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 60px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .page-hero h1 { font-size: 2rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .nav-title-tamil { font-size: 0.85rem; }
  .section { padding: 50px 0; }
  .btn { padding: 11px 22px; font-size: 0.88rem; }
}