/* ============================================================
   TAU GAMMA PHI – TRISKELION GRAND FRATERNITY
   Asia 2 Community Chapter
   style.css — Main Stylesheet
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --gold:        #C9A84C;
  --gold-light:  #F0D080;
  --gold-dark:   #8B6914;
  --gold-faint:  rgba(201,168,76,0.08);
  --dark:        #0D0D0D;
  --dark2:       #1A1A1A;
  --dark3:       #252525;
  --dark4:       #333333;
  --text:        #F5F0E8;
  --text-muted:  #A89060;
  --white:       #FFFFFF;
  --border:      1px solid #333333;
  --border-gold: 1px solid #8B6914;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Lato', sans-serif;
  background: var(--dark);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: 'Cinzel', serif; }

/* ---------- Navigation ---------- */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(13,13,13,0.97);
  border-bottom: 1px solid var(--gold-dark);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 66px;
  transition: box-shadow 0.3s;
}
#navbar.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.6); }
.nav-brand { display: flex; align-items: center; gap: 14px; }
.nav-brand-text { font-family: 'Cinzel', serif; font-size: 16px; color: var(--gold); letter-spacing: 3px; }
.nav-brand-sub { font-size: 10px; color: var(--text-muted); letter-spacing: 2px; display: block; margin-top: 2px; }
.nav-logo { width: 38px; height: auto; object-fit: contain; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  color: var(--text-muted); font-size: 12px; letter-spacing: 2px;
  text-transform: uppercase; transition: color 0.3s; padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.nav-links a:hover,
.nav-links a.active { color: var(--gold); border-bottom-color: var(--gold); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 1.5px; background: var(--gold); transition: all 0.3s; }

/* ---------- Section Base ---------- */
section { padding: 100px 48px; }
.section-header { text-align: center; margin-bottom: 72px; }
.section-label {
  font-size: 11px; letter-spacing: 6px; color: var(--gold);
  text-transform: uppercase; margin-bottom: 14px; display: block;
}
.section-title { font-size: clamp(28px, 4vw, 46px); font-weight: 700; color: var(--white); }
.gold-line { width: 60px; height: 2px; background: var(--gold); margin: 20px auto 0; }
.container { max-width: 1160px; margin: 0 auto; }

/* ---------- Hero ---------- */
#hero {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 120px 48px 80px;
  position: relative; overflow: hidden;
}

/* Background Slider */
.hero-bg-slider {
  position: absolute; inset: 0; z-index: 0;
}
.hero-bg-track {
  display: flex; width: 100%; height: 100%;
  transition: none;
}
.hero-bg-slide {
  min-width: 100%; height: 100%;
  background-size: cover; background-position: center;
  flex-shrink: 0;
  transition: opacity 1s ease;
}
.hero-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.65) 0%,
    rgba(13,13,13,0.55) 50%,
    rgba(13,13,13,0.85) 100%
  );
}

/* Hero Content */
.hero-content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center;
}

/* Slide Indicators */
.hero-indicators {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 5;
}
.hero-indicator {
  width: 28px; height: 3px; background: rgba(201,168,76,0.35);
  cursor: pointer; transition: background 0.3s, width 0.3s;
}
.hero-indicator.active { background: var(--gold); width: 48px; }

.hero-logo {
  width: 150px; height: auto; margin-bottom: 28px;
  filter: drop-shadow(0 4px 24px rgba(0,0,0,0.7));
  animation: logoPulse 3.5s ease-in-out infinite;
}
@keyframes logoPulse {
  0%,100% { filter: drop-shadow(0 4px 24px rgba(0,0,0,0.7)); }
  50%      { filter: drop-shadow(0 4px 36px rgba(201,168,76,0.5)); }
}
.hero-label { font-size: 11px; letter-spacing: 7px; color: var(--gold); text-transform: uppercase; margin-bottom: 22px; }
.hero-title {
  font-family: 'Cinzel', serif;
  font-size: clamp(38px, 8vw, 88px);
  font-weight: 900; line-height: 1.0; color: var(--white);
}
.hero-title span { color: var(--gold); }
.hero-subtitle {
  font-family: 'Cinzel', serif;
  font-size: clamp(13px, 2vw, 18px);
  color: var(--gold-light); letter-spacing: 5px; margin-top: 14px;
}
.hero-chapter {
  font-size: 13px; letter-spacing: 3px; color: var(--text-muted);
  text-transform: uppercase; margin-top: 10px;
}
.hero-desc {
  max-width: 560px; margin: 36px auto 0;
  color: var(--text-muted); font-size: 16px; line-height: 1.9;
}
.hero-cta { margin-top: 52px; display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
.btn-gold {
  background: var(--gold); color: var(--dark);
  padding: 15px 40px; font-family: 'Cinzel', serif; font-size: 12px;
  letter-spacing: 2.5px; text-transform: uppercase; border: none; cursor: pointer;
  clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
  transition: background 0.3s, transform 0.3s;
}
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); }
.btn-outline {
  border: 1px solid var(--gold); color: var(--gold);
  padding: 15px 40px; font-family: 'Cinzel', serif; font-size: 12px;
  letter-spacing: 2.5px; text-transform: uppercase; cursor: pointer;
  clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
  transition: background 0.3s, transform 0.3s;
}
.btn-outline:hover { background: var(--gold-faint); transform: translateY(-2px); }
.scroll-down {
  margin-top: 70px; color: var(--text-muted); font-size: 11px;
  letter-spacing: 4px; text-transform: uppercase; animation: bounceDown 2.2s infinite;
}
@keyframes bounceDown { 0%,100%{transform:translateY(0)} 50%{transform:translateY(8px)} }

/* ---------- About ---------- */
#about { background: var(--dark2); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.about-text p { color: var(--text-muted); font-size: 16px; line-height: 1.95; margin-bottom: 22px; }
.about-text p:last-child { margin-bottom: 0; }
.about-accent { color: var(--gold) !important; font-style: italic; font-weight: 700; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card {
  background: var(--dark3); border: var(--border-gold);
  padding: 30px 24px; text-align: center; position: relative;
  transition: border-color 0.3s;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--gold);
}
.stat-card:hover { border-color: var(--gold); }
.stat-num { font-family: 'Cinzel', serif; font-size: 42px; color: var(--gold); font-weight: 700; }
.stat-label { font-size: 11px; letter-spacing: 2px; color: var(--text-muted); text-transform: uppercase; margin-top: 8px; }

/* ---------- History ---------- */
#history { background: var(--dark); }
.timeline { max-width: 820px; margin: 0 auto; position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 1px; background: linear-gradient(to bottom, transparent, var(--gold-dark) 15%, var(--gold-dark) 85%, transparent);
  transform: translateX(-50%);
}
.tl-item {
  display: flex; justify-content: flex-end;
  padding-right: calc(50% + 44px); margin-bottom: 52px; position: relative;
}
.tl-item:nth-child(even) {
  justify-content: flex-start; padding-right: 0; padding-left: calc(50% + 44px);
}
.tl-dot {
  position: absolute; left: 50%; top: 18px;
  width: 14px; height: 14px; background: var(--gold);
  border: 3px solid var(--dark); border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 14px rgba(201,168,76,0.6);
}
.tl-content {
  background: var(--dark3); border: var(--border);
  padding: 26px; max-width: 350px; transition: border-color 0.3s;
}
.tl-content:hover { border-color: var(--gold-dark); }
.tl-year { font-family: 'Cinzel', serif; color: var(--gold); font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.tl-content h3 { color: var(--white); font-size: 15px; font-family: 'Lato', sans-serif; font-weight: 700; margin-bottom: 10px; }
.tl-content p { color: var(--text-muted); font-size: 14px; line-height: 1.75; }
.history-note { text-align: center; margin-top: 48px; color: var(--text-muted); font-size: 13px; font-style: italic; }

/* ---------- Projects ---------- */
#projects { background: var(--dark2); }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 28px; }
.project-card {
  background: var(--dark3); border: var(--border); overflow: hidden;
  transition: transform 0.35s, border-color 0.35s;
}
.project-card:hover { transform: translateY(-8px); border-color: var(--gold-dark); }
.project-img {
  height: 210px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.project-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s;
}
.project-card:hover .project-img img { transform: scale(1.05); }
.project-img-placeholder {
  width: 100%; height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
}
.project-img-cleanup  .project-img-placeholder { background: linear-gradient(135deg, #1a3a1a, #0d2b0d); }
.project-img-breakfast .project-img-placeholder { background: linear-gradient(135deg, #3a2a0d, #1a1200); }
.project-placeholder-icon { font-size: 56px; opacity: 0.75; }
.project-placeholder-label { font-size: 11px; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; }
.project-badge {
  position: absolute; top: 16px; left: 16px;
  background: var(--gold); color: var(--dark);
  font-size: 10px; letter-spacing: 2px; padding: 5px 14px;
  text-transform: uppercase; font-weight: 700;
}
.project-body { padding: 30px; }
.project-tag {
  display: inline-block;
  background: rgba(201,168,76,0.1); border: var(--border-gold);
  color: var(--gold); font-size: 10px; letter-spacing: 2.5px;
  padding: 4px 12px; text-transform: uppercase; margin-bottom: 14px;
}
.project-body h3 { font-size: 22px; color: var(--white); margin-bottom: 12px; }
.project-body p { color: var(--text-muted); font-size: 14px; line-height: 1.85; }
.project-freq {
  display: flex; align-items: center; gap: 8px;
  margin-top: 20px; color: var(--gold); font-size: 12px; letter-spacing: 1.5px;
}
.project-freq::before { content: ''; display: block; width: 20px; height: 1px; background: var(--gold); }

/* ---------- Org Chart ---------- */
#orgchart { background: var(--dark); }
.org-wrapper { overflow-x: auto; padding-bottom: 16px; }
.org-tree { display: flex; flex-direction: column; align-items: center; min-width: 700px; }
.org-level-label {
  font-size: 10px; letter-spacing: 4px; color: var(--text-muted);
  text-transform: uppercase; margin: 8px 0 4px; text-align: center;
}
.org-level { display: flex; justify-content: center; gap: 16px; padding: 8px 0; flex-wrap: wrap; }
.org-connector { width: 1px; height: 28px; background: var(--gold-dark); }
.org-h-line { height: 1px; background: var(--gold-dark); align-self: stretch; }
.org-node {
  background: var(--dark3); border: var(--border);
  padding: 14px 18px; text-align: center; min-width: 148px;
  transition: border-color 0.3s, background 0.3s;
}
.org-node:hover { border-color: var(--gold); }
.org-node.tier-top {
  background: linear-gradient(135deg, #2a1e00, #1a1200);
  border: 2px solid var(--gold); min-width: 210px;
}
.org-node.tier-deputy {
  background: linear-gradient(135deg, #1e1800, #131000);
  border-color: var(--gold-dark);
}
.org-role { font-size: 10px; letter-spacing: 1.5px; color: var(--gold); text-transform: uppercase; margin-bottom: 5px; }
.org-name { font-family: 'Cinzel', serif; color: var(--white); font-size: 13px; font-weight: 600; line-height: 1.3; }
.org-note { font-size: 10px; color: var(--text-muted); margin-top: 4px; }
.org-footer-note {
  text-align: center; margin-top: 32px;
  color: var(--text-muted); font-size: 12px; font-style: italic;
}

/* ---------- Members ---------- */
#members { background: var(--dark2); }
.members-filter {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px;
}
.filter-btn {
  background: transparent; border: var(--border-gold); color: var(--text-muted);
  padding: 8px 22px; font-family: 'Cinzel', serif; font-size: 11px;
  letter-spacing: 2px; text-transform: uppercase; cursor: pointer;
  transition: all 0.3s;
}
.filter-btn:hover, .filter-btn.active { background: var(--gold); color: var(--dark); border-color: var(--gold); }
.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 20px;
}
.member-card {
  background: var(--dark3); border: var(--border);
  padding: 26px 16px; text-align: center;
  transition: transform 0.3s, border-color 0.3s; cursor: default;
}
.member-card:hover { transform: translateY(-5px); border-color: var(--gold-dark); }
.member-avatar {
  width: 82px; height: 82px; border-radius: 50%;
  border: 2px solid var(--gold-dark);
  margin: 0 auto 16px; overflow: hidden;
  background: var(--dark4);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Cinzel', serif; font-size: 22px; color: var(--gold);
  transition: border-color 0.3s;
}
.member-card:hover .member-avatar { border-color: var(--gold); }
.member-avatar img { width: 100%; height: 100%; object-fit: cover; }
.member-num { font-size: 10px; color: var(--text-muted); margin-bottom: 4px; letter-spacing: 1px; }
.member-name { font-family: 'Cinzel', serif; color: var(--white); font-size: 12px; line-height: 1.4; margin-bottom: 8px; }
.member-role { font-size: 10px; color: var(--gold); letter-spacing: 1.5px; text-transform: uppercase; line-height: 1.5; }
.members-count { text-align: center; margin-top: 40px; color: var(--text-muted); font-size: 13px; }
.members-count span { color: var(--gold); font-family: 'Cinzel', serif; font-size: 18px; }

/* ---------- Contact ---------- */
#contact { background: var(--dark); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 60px; align-items: start; }
.contact-info h3 { font-size: 22px; color: var(--white); margin-bottom: 20px; }
.contact-info p { color: var(--text-muted); font-size: 15px; line-height: 1.85; margin-bottom: 32px; }
.contact-detail { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.contact-detail-icon {
  width: 42px; height: 42px; border: var(--border-gold);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 18px; flex-shrink: 0;
}
.contact-detail-text { font-size: 13px; }
.contact-detail-label { color: var(--text-muted); letter-spacing: 1.5px; font-size: 10px; text-transform: uppercase; margin-bottom: 4px; }
.contact-detail-value { color: var(--white); }
.contact-form-wrap { background: var(--dark2); border: var(--border); padding: 44px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block; font-size: 10px; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--gold); margin-bottom: 10px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; background: var(--dark3); border: var(--border);
  color: var(--text); padding: 14px 16px;
  font-family: 'Lato', sans-serif; font-size: 14px; outline: none;
  transition: border-color 0.3s; appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--dark4); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--gold-dark); }
.form-group select option { background: var(--dark3); }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-submit {
  width: 100%; background: var(--gold); color: var(--dark);
  padding: 16px; font-family: 'Cinzel', serif; font-size: 13px;
  letter-spacing: 3px; text-transform: uppercase; border: none; cursor: pointer;
  transition: background 0.3s, transform 0.2s;
}
.form-submit:hover { background: var(--gold-light); transform: translateY(-2px); }
.form-submit:active { transform: translateY(0); }
.form-note { text-align: center; margin-top: 14px; font-size: 12px; color: var(--text-muted); }
.form-success {
  display: none; background: rgba(201,168,76,0.08);
  border: var(--border-gold); padding: 22px;
  text-align: center; color: var(--gold);
  font-family: 'Cinzel', serif; font-size: 14px; margin-top: 20px;
  letter-spacing: 1px;
}

/* ---------- Footer ---------- */
footer {
  background: var(--dark2); border-top: 1px solid var(--gold-dark);
  padding: 56px 48px 32px; text-align: center;
}
.footer-logo-wrap { margin-bottom: 20px; }
.footer-logo { width: 56px; height: 56px; margin: 0 auto; opacity: 0.7; }
.footer-brand { font-family: 'Cinzel', serif; font-size: 24px; color: var(--gold); margin-bottom: 6px; }
.footer-sub { font-size: 11px; letter-spacing: 3px; color: var(--text-muted); margin-bottom: 4px; }
.footer-chapter { font-size: 11px; letter-spacing: 3px; color: var(--gold-dark); margin-bottom: 32px; }
.footer-nav { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }
.footer-nav a { color: var(--text-muted); font-size: 12px; letter-spacing: 1.5px; transition: color 0.3s; text-transform: uppercase; }
.footer-nav a:hover { color: var(--gold); }
.footer-motto { color: var(--gold-dark); font-size: 12px; letter-spacing: 3px; margin-bottom: 20px; font-style: italic; }
.footer-copy { font-size: 11px; color: #2a2a2a; }

/* ---------- Photo Slider ---------- */
.slider-wrap { position: relative; overflow: hidden; width: 100%; height: 100%; }
.slider-track { display: flex; height: 100%; transition: transform 0.6s cubic-bezier(.4,0,.2,1); }
.slider-track img { min-width: 100%; height: 100%; object-fit: cover; flex-shrink: 0; }
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.55); border: 1px solid var(--gold-dark);
  color: var(--gold); width: 36px; height: 36px; display: flex;
  align-items: center; justify-content: center; cursor: pointer;
  font-size: 16px; z-index: 5; transition: background 0.3s;
}
.slider-btn:hover { background: rgba(201,168,76,0.25); }
.slider-btn.prev { left: 10px; }
.slider-btn.next { right: 10px; }
.slider-dots {
  position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 6px; z-index: 5;
}
.slider-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(201,168,76,0.4); cursor: pointer; transition: background 0.3s;
}
.slider-dot.active { background: var(--gold); }

/* ---------- Mobile Nav Drawer ---------- */
.nav-drawer {
  display: none; position: fixed; top: 66px; left: 0; right: 0; bottom: 0; z-index: 999;
  background: rgba(13,13,13,0.98); flex-direction: column; align-items: center;
  justify-content: center; gap: 32px;
}
.nav-drawer.open { display: flex; }
.nav-drawer a { font-family: 'Cinzel', serif; font-size: 20px; color: var(--text-muted); letter-spacing: 3px; transition: color 0.3s; }
.nav-drawer a:hover { color: var(--gold); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  section { padding: 80px 24px; }
  #navbar { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 28px 20px; }
}
@media (max-width: 700px) {
  .timeline::before { left: 18px; }
  .tl-item,
  .tl-item:nth-child(even) { padding-right: 0; padding-left: 50px; justify-content: flex-start; }
  .tl-dot { left: 18px; }
  .tl-content { max-width: 100%; }
  .hero-title { font-size: clamp(32px, 10vw, 60px); }
  footer { padding: 40px 24px 24px; }
}