/* =========================================================
   AssisTea — Academic Project Website Stylesheet
   Palette: #0E401D (Dark Forest) · #73AB2E (Leaf Green) · #F4B124 (Gold)
   ========================================================= */

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

:root {
  --c-dark:     #0E401D;
  --c-green:    #73AB2E;
  --c-gold:     #F4B124;
  --c-surface:  #111b13;
  --c-bg:       #07100a;
  --c-bg-light: #0d1a10;
  --c-text:     #e8f5e9;
  --c-text-sub: #8da98f;
  --c-border:   rgba(115,171,46,0.18);
  --c-card:     rgba(14,64,29,0.4);
  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow-card: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 48px rgba(115,171,46,0.18);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }

/* ─── SCROLLBAR ────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: var(--c-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-green); }

/* ─── TYPOGRAPHY ───────────────────────────────────────── */
.section-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--c-green);
  background: rgba(115,171,46,0.1); border: 1px solid rgba(115,171,46,0.3);
  padding: 6px 14px; border-radius: 100px; margin-bottom: 18px;
}

.section-header { text-align: center; max-width: 680px; margin: 0 auto 56px; }

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800; line-height: 1.15; letter-spacing: -0.02em;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #e8f5e9, #a5d46a);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle { font-size: 1rem; color: var(--c-text-sub); line-height: 1.75; }

/* ─── BUTTONS ──────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 100px;
  font-size: 0.92rem; font-weight: 600; cursor: pointer;
  border: none; transition: var(--transition);
  position: relative; overflow: hidden; white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, #73AB2E, #5a8c22); color: #fff; box-shadow: 0 4px 20px rgba(115,171,46,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(115,171,46,0.5); }
.btn-ghost { background: rgba(255,255,255,0.07); color: var(--c-text); border: 1px solid rgba(255,255,255,0.12); backdrop-filter: blur(10px); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ─── NAVIGATION ───────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  background: rgba(7,16,10,0.94); backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(115,171,46,0.15);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.3rem; font-weight: 800; letter-spacing: -0.03em; }
.logo-leaf { font-size: 1.4rem; }
.logo-text { color: #e8f5e9; }
.logo-accent { color: var(--c-green); }

.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-link {
  padding: 7px 13px; border-radius: 8px; font-size: 0.87rem;
  font-weight: 500; color: var(--c-text-sub); transition: var(--transition);
}
.nav-link:hover, .nav-link.active-link { color: var(--c-text); background: rgba(255,255,255,0.07); }

.nav-hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-hamburger span { width: 22px; height: 2px; background: var(--c-text); border-radius: 2px; display: block; transition: var(--transition); }

/* ─── HERO ─────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden; padding: 100px 0 60px;
}
.hero-bg-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  filter: saturate(0.6) brightness(0.3); z-index: 0;
}
.hero-bg-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(14,64,29,0.7) 0%, transparent 70%),
              linear-gradient(180deg, rgba(7,16,10,0.5) 0%, rgba(7,16,10,0.15) 50%, rgba(7,16,10,0.85) 100%);
  z-index: 1;
}
.hero-particles { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.particle {
  position: absolute; width: 3px; height: 3px; border-radius: 50%;
  background: rgba(115,171,46,0.5); animation: floatParticle linear infinite;
}
@keyframes floatParticle {
  0%   { transform: translateY(100vh) rotate(0deg);   opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--c-green); background: rgba(115,171,46,0.1);
  border: 1px solid rgba(115,171,46,0.3); padding: 7px 16px;
  border-radius: 100px; margin-bottom: 24px; backdrop-filter: blur(10px);
}
.badge-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--c-green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(115,171,46,0.5); }
  50%      { box-shadow: 0 0 0 5px rgba(115,171,46,0); }
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 900; line-height: 1.05; letter-spacing: -0.04em;
  color: #e8f5e9; margin-bottom: 6px;
}
.hero-accent { color: var(--c-green); }
.hero-tagline { font-size: clamp(1rem, 2vw, 1.25rem); color: var(--c-gold); font-weight: 600; letter-spacing: 0.02em; margin-bottom: 20px; }
.hero-subtitle { font-size: clamp(0.92rem, 1.5vw, 1.08rem); color: rgba(232,245,233,0.72); line-height: 1.8; max-width: 680px; margin-bottom: 36px; }

.hero-stats {
  display: flex; align-items: center;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg); padding: 18px 28px;
  backdrop-filter: blur(12px); width: fit-content; margin-bottom: 32px;
}
.stat-item { text-align: center; padding: 0 22px; }
.stat-number { font-size: 1.7rem; font-weight: 900; color: var(--c-green); display: block; line-height: 1; margin-bottom: 4px; }
.stat-label  { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.45); }
.stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,0.12); flex-shrink: 0; }

.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.hero-scroll-hint {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center;
  gap: 8px; color: rgba(255,255,255,0.35); font-size: 0.72rem;
  letter-spacing: 0.1em; text-transform: uppercase;
}
.scroll-mouse { width: 20px; height: 32px; border: 2px solid rgba(255,255,255,0.2); border-radius: 10px; display: flex; justify-content: center; padding-top: 5px; }
.scroll-wheel { width: 3px; height: 7px; background: rgba(255,255,255,0.35); border-radius: 2px; animation: scrollWheel 1.5s ease-in-out infinite; }
@keyframes scrollWheel { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(10px); opacity: 0; } }

/* ─── ANIMATIONS ───────────────────────────────────────── */
.animate-fade-up { opacity: 0; transform: translateY(28px); }
.animate-fade-up.in-view { animation: fadeUp 0.7s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.45s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

[data-aos] { transition: opacity 0.6s ease, transform 0.6s ease; }
[data-aos="fade-up"]    { opacity: 0; transform: translateY(28px); }
[data-aos="zoom-in"]    { opacity: 0; transform: scale(0.94); }
[data-aos].ao-in        { opacity: 1 !important; transform: none !important; }

/* ─── RESEARCH JOURNEY ─────────────────────────────────── */
.research-journey-section { background: var(--c-bg); }

.journey-groups { display: grid; grid-template-columns: 1fr; gap: 28px; }
.journey-group {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 36px;
  align-items: center;
}
.journey-group--reverse .journey-media { order: 1; }
.journey-group--reverse .journey-copy { order: 2; }

.journey-copy h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--c-text);
  margin: 10px 0 12px;
}
.journey-copy p { font-size: 0.92rem; color: var(--c-text-sub); line-height: 1.8; }
.journey-media { min-width: 0; }
.journey-cluster {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr 40px;
  align-items: center;
  gap: 10px;
}
.journey-cluster-stage {
  position: relative;
  height: 340px;
  border-radius: 16px;
}
.journey-cluster-card {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(115,171,46,0.2);
  background: rgba(0,0,0,0.28);
  opacity: 0.35;
  transform: translateX(0) scale(0.92);
  transition: transform 0.45s ease, opacity 0.45s ease, filter 0.45s ease;
  pointer-events: none;
}
.journey-cluster-card.is-active {
  opacity: 1;
  transform: translateX(0) scale(1);
  filter: saturate(1.06);
  z-index: 3;
}
.journey-cluster-card.is-prev {
  opacity: 0.9;
  transform: translateX(-18%) rotate(-6deg) scale(0.86);
  filter: brightness(0.75);
  z-index: 2;
}
.journey-cluster-card.is-next {
  opacity: 0.9;
  transform: translateX(18%) rotate(6deg) scale(0.86);
  filter: brightness(0.75);
  z-index: 2;
}
.journey-cluster-card.is-hidden {
  opacity: 0.18;
  transform: scale(0.75);
  z-index: 1;
}
.journey-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition), filter var(--transition);
}
.journey-cluster-card.is-active .journey-photo { transform: scale(1.02); }
.journey-nav {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(115,171,46,0.35);
  background: rgba(7,16,10,0.75);
  color: var(--c-text);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition);
}
.journey-nav:hover {
  background: rgba(115,171,46,0.18);
  border-color: rgba(115,171,46,0.55);
}
.journey-cluster-dots {
  position: absolute;
  left: 50%;
  bottom: -4px;
  transform: translateX(-50%);
  display: flex;
  gap: 7px;
  z-index: 5;
}
.journey-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(141,169,143,0.45);
  transition: var(--transition);
}
.journey-dot.is-active {
  width: 22px;
  border-radius: 999px;
  background: var(--c-green);
}

/* ─── DOMAIN SECTION ───────────────────────────────────── */
.domain-section { background: var(--c-bg-light); }

.domain-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  border-bottom: 1px solid var(--c-border);
  padding-bottom: 0; margin-bottom: 36px;
}
.tab-btn {
  padding: 10px 20px; border-radius: 10px 10px 0 0; border: none;
  background: transparent; color: var(--c-text-sub);
  font-family: 'Inter', sans-serif; font-size: 0.87rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  border-bottom: 2px solid transparent; position: relative; bottom: -1px;
}
.tab-btn:hover  { color: var(--c-text); background: rgba(115,171,46,0.06); }
.tab-btn.active { color: var(--c-green); border-bottom-color: var(--c-green); background: rgba(115,171,46,0.08); }

.tab-panel { display: none; animation: tabFadeIn 0.35s ease; }
.tab-panel.active { display: block; }
@keyframes tabFadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

.domain-panel-inner {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 44px 48px;
}
.domain-icon { font-size: 2.5rem; margin-bottom: 16px; }
.domain-panel-inner h3 {
  font-family: 'Playfair Display', serif; font-size: 1.8rem; font-weight: 800;
  color: var(--c-text); margin-bottom: 20px;
}
.domain-panel-inner p { font-size: 0.95rem; color: var(--c-text-sub); line-height: 1.8; margin-bottom: 16px; }

.domain-highlights { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.highlight-item {
  display: flex; align-items: center; gap: 8px; font-size: 0.83rem;
  color: var(--c-text-sub); background: rgba(115,171,46,0.07);
  border: 1px solid rgba(115,171,46,0.18); padding: 8px 16px; border-radius: 100px;
}

.gap-list { display: flex; flex-direction: column; gap: 24px; margin-top: 24px; }
.gap-item { display: flex; gap: 20px; align-items: flex-start; background: rgba(0,0,0,0.2); border-radius: var(--radius-md); padding: 24px; border: 1px solid var(--c-border); }
.gap-number { font-family: 'Playfair Display', serif; font-size: 2rem; font-weight: 900; color: var(--c-green); opacity: 0.5; flex-shrink: 0; min-width: 40px; }
.gap-text h4 { font-size: 1rem; font-weight: 700; color: var(--c-text); margin-bottom: 8px; }
.gap-text p  { font-size: 0.88rem; color: var(--c-text-sub); line-height: 1.7; margin: 0; }

.problem-context { display: flex; flex-direction: column; gap: 20px; margin-top: 8px; }
.problem-block { background: rgba(0,0,0,0.2); border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 24px; }
.problem-block h4 { font-size: 1rem; font-weight: 700; color: var(--c-text); margin-bottom: 10px; }
.problem-block p  { font-size: 0.9rem; color: var(--c-text-sub); line-height: 1.75; margin: 0; }
.problem-list { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.problem-list li { font-size: 0.88rem; color: var(--c-text-sub); padding-left: 20px; position: relative; line-height: 1.6; }
.problem-list li::before { content: '▸'; position: absolute; left: 0; color: var(--c-green); }

.objective-intro { font-size: 0.98rem; color: var(--c-text-sub); line-height: 1.8; background: rgba(115,171,46,0.07); border-left: 3px solid var(--c-green); padding: 16px 20px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-bottom: 28px; }
.objectives-list { display: flex; flex-direction: column; gap: 18px; }
.objective-item { display: flex; gap: 20px; align-items: flex-start; padding: 20px; background: rgba(0,0,0,0.15); border-radius: var(--radius-md); border: 1px solid var(--c-border); }
.obj-number { font-family: 'Playfair Display', serif; font-size: 1.8rem; font-weight: 900; color: var(--c-green); opacity: 0.45; flex-shrink: 0; min-width: 40px; }
.obj-text h4 { font-size: 0.95rem; font-weight: 700; color: var(--c-text); margin-bottom: 6px; }
.obj-text p  { font-size: 0.87rem; color: var(--c-text-sub); line-height: 1.7; margin: 0; }

.method-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 24px; }
.method-step { background: rgba(0,0,0,0.2); border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 24px; }
.method-phase { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-green); margin-bottom: 8px; }
.method-step h4 { font-size: 1rem; font-weight: 700; color: var(--c-text); margin-bottom: 10px; }
.method-step p  { font-size: 0.87rem; color: var(--c-text-sub); line-height: 1.7; margin: 0; }

.tech-grid-small { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 24px; }
.tech-item { background: rgba(0,0,0,0.2); border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 20px 16px; text-align: center; transition: var(--transition); }
.tech-item:hover { border-color: rgba(115,171,46,0.35); transform: translateY(-3px); }
.tech-emoji { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.tech-item strong { display: block; font-size: 0.87rem; font-weight: 700; color: var(--c-text); margin-bottom: 6px; }
.tech-item p { font-size: 0.78rem; color: var(--c-text-sub); line-height: 1.5; margin: 0; }


/* ─── MILESTONES ───────────────────────────────────────── */
.milestones-section { background: var(--c-bg); }

.milestone-selector-wrap {
  display: flex; align-items: center; gap: 16px; margin-bottom: 36px;
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-md); padding: 20px 28px;
}
.milestone-selector-wrap label { font-size: 0.9rem; font-weight: 600; color: var(--c-text-sub); white-space: nowrap; }

/* Custom Dropdown */
.custom-select { flex: 1; position: relative; }
.custom-select-selected {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(0,0,0,0.3); border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); color: var(--c-text);
  font-size: 0.95rem; font-weight: 600; padding: 11px 16px;
  cursor: pointer; transition: var(--transition); user-select: none;
}
.custom-select-selected:hover,
.custom-select.open .custom-select-selected { border-color: var(--c-green); background: rgba(14,64,29,0.25); }
.select-arrow { flex-shrink: 0; color: var(--c-text-sub); transition: transform var(--transition); }
.custom-select.open .select-arrow { transform: rotate(180deg); }
.custom-select-options {
  display: none; position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 200;
  background: #0d1f10; border: 1px solid var(--c-green);
  border-radius: var(--radius-md); overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
}
.custom-select.open .custom-select-options { display: block; animation: tabFadeIn 0.2s ease; }
.custom-option {
  padding: 12px 18px; font-size: 0.92rem; font-weight: 500;
  color: var(--c-text-sub); cursor: pointer; transition: var(--transition);
}
.custom-option:hover { background: rgba(115,171,46,0.12); color: var(--c-text); }
.custom-option.active { background: rgba(115,171,46,0.18); color: var(--c-green); font-weight: 700; }

.milestone-panel { display: none; animation: tabFadeIn 0.35s ease; }
.milestone-panel.active { display: block; }

.milestone-header {
  display: flex; align-items: flex-start; gap: 20px;
  background: linear-gradient(135deg, rgba(14,64,29,0.6), rgba(115,171,46,0.06));
  border: 1px solid rgba(115,171,46,0.25); border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 32px 36px;
}
.milestone-icon { font-size: 2.8rem; flex-shrink: 0; }
.milestone-header h3 { font-family: 'Playfair Display', serif; font-size: 1.6rem; font-weight: 800; color: var(--c-text); margin-bottom: 14px; }
.milestone-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.meta-tag {
  font-size: 0.78rem; font-weight: 600; color: var(--c-text-sub);
  background: rgba(0,0,0,0.25); border: 1px solid var(--c-border);
  padding: 5px 12px; border-radius: 100px;
}
.meta-tag.marks { color: var(--c-gold); border-color: rgba(244,177,36,0.3); background: rgba(244,177,36,0.08); }

.milestone-body {
  background: var(--c-card); border: 1px solid rgba(115,171,46,0.2);
  border-top: none; border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: 32px 36px;
}
.milestone-body p { font-size: 0.93rem; color: var(--c-text-sub); line-height: 1.8; margin-bottom: 16px; }

.milestone-marks-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px; margin-top: 28px; padding-top: 24px;
  border-top: 1px solid var(--c-border);
}
.marks-item {
  text-align: center; background: rgba(0,0,0,0.2); border: 1px solid var(--c-border);
  border-radius: var(--radius-md); padding: 18px 12px;
}
.marks-item.marks-total {
  background: rgba(115,171,46,0.1); border-color: rgba(115,171,46,0.35);
}
.marks-value { display: block; font-size: 1.5rem; font-weight: 900; color: var(--c-green); margin-bottom: 4px; }
.marks-total .marks-value { color: var(--c-gold); font-size: 1.7rem; }
.marks-label { font-size: 0.72rem; color: var(--c-text-sub); font-weight: 600; letter-spacing: 0.03em; }

/* ─── DOCUMENTS ────────────────────────────────────────── */
.documents-section { background: var(--c-bg-light); }

.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }

.doc-card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 30px 28px;
  display: grid; grid-template-rows: auto 1fr auto; gap: 16px;
  transition: var(--transition);
}
.doc-card:hover { border-color: rgba(115,171,46,0.4); transform: translateY(-4px); box-shadow: var(--shadow-glow); }

.doc-icon { font-size: 2.4rem; }
.doc-info h3 { font-size: 1.1rem; font-weight: 700; color: var(--c-text); margin-bottom: 8px; }
.doc-info p  { font-size: 0.87rem; color: var(--c-text-sub); line-height: 1.65; }
.doc-status { display: inline-block; font-size: 0.75rem; font-weight: 700; margin-top: 10px; padding: 4px 12px; border-radius: 100px; }
.doc-status.available { color: var(--c-green); background: rgba(115,171,46,0.1); border: 1px solid rgba(115,171,46,0.25); }
.doc-status.pending   { color: var(--c-text-sub); background: rgba(255,255,255,0.05); border: 1px solid var(--c-border); }

.doc-btn {
  display: inline-block; font-size: 0.87rem; font-weight: 700;
  color: var(--c-green); padding: 10px 0;
  border-top: 1px solid var(--c-border); transition: var(--transition);
}
.doc-btn:hover { color: var(--c-text); letter-spacing: 0.02em; }

/* ─── SLIDES ───────────────────────────────────────────── */
.slides-section { background: var(--c-bg); }

.slides-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.slide-card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  display: flex; flex-direction: column; gap: 10px;
  transition: var(--transition);
}
.slide-card:hover { border-color: rgba(115,171,46,0.4); transform: translateY(-4px); box-shadow: var(--shadow-glow); }

.slide-phase {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--c-green); background: rgba(115,171,46,0.1);
  border: 1px solid rgba(115,171,46,0.2); padding: 4px 10px;
  border-radius: 100px; width: fit-content;
}
.slide-icon { font-size: 2rem; }
.slide-card h3 { font-size: 1rem; font-weight: 700; color: var(--c-text); }
.slide-date { font-size: 0.78rem; font-weight: 600; color: var(--c-gold); }
.slide-desc { font-size: 0.82rem; color: var(--c-text-sub); line-height: 1.65; flex: 1; }
.slide-btn {
  display: inline-block; font-size: 0.85rem; font-weight: 700;
  color: var(--c-green); padding-top: 10px; border-top: 1px solid var(--c-border);
  transition: var(--transition); width: 100%;
}
.slide-btn:hover { color: var(--c-text); }
.slide-btn--pending { color: var(--c-text-sub); cursor: default; }

/* ─── ABOUT US ─────────────────────────────────────────── */
.about-section { background: var(--c-bg-light); }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.team-grid-supervisors {
  grid-template-columns: repeat(2, minmax(220px, 280px));
  justify-content: center;
  margin: 0 auto 34px;
}
.team-grid-members { margin-top: 8px; }

.team-card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 32px 20px 28px;
  text-align: center; transition: var(--transition); position: relative;
}
.team-card:hover { border-color: rgba(115,171,46,0.4); transform: translateY(-5px); box-shadow: var(--shadow-glow); }
.team-card--leader { border-color: rgba(115,171,46,0.35); background: linear-gradient(145deg, rgba(14,64,29,0.6), rgba(115,171,46,0.05)); }

.team-photo-wrap { position: relative; width: 120px; height: 120px; margin: 0 auto 16px; border-radius: 50%; overflow: hidden; border: 3px solid var(--c-border); background: var(--c-card); }
.team-photo { width: 100%; height: 100%; object-fit: cover; object-position: center 15%; display: block; border-radius: 50%; transform: scale(1.08); }
.team-photo-fallback {
  display: none; width: 120px; height: 120px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-dark), var(--c-green));
  align-items: center; justify-content: center;
  font-size: 2.5rem; font-weight: 800; color: rgba(255,255,255,0.9);
  border: 3px solid var(--c-border);
}
.team-leader-badge {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--c-gold); background: rgba(244,177,36,0.1);
  border: 1px solid rgba(244,177,36,0.3); padding: 4px 12px; border-radius: 100px;
  display: inline-block; margin-bottom: 10px;
}
.team-name  { font-size: 0.95rem; font-weight: 700; color: var(--c-text); margin-bottom: 5px; }
.team-role  {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.73rem; font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--c-border); color: var(--c-text-sub);
  background: rgba(255,255,255,0.04); margin-bottom: 10px;
}
.team-role--supervisor {
  color: var(--c-gold); border-color: rgba(244,177,36,0.35);
  background: rgba(244,177,36,0.12);
}
.team-role--co-supervisor {
  color: #ffd88a; border-color: rgba(244,177,36,0.22);
  background: rgba(244,177,36,0.08);
}
.team-role--leader {
  color: #c4f096; border-color: rgba(115,171,46,0.45);
  background: rgba(115,171,46,0.16);
}
.team-role--member {
  color: #b8d9ba; border-color: rgba(141,169,143,0.35);
  background: rgba(141,169,143,0.12);
}
.team-component {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.74rem; font-weight: 650; line-height: 1.45;
  color: rgba(244,177,36,0.92); background: rgba(244,177,36,0.09);
  border: 1px solid rgba(244,177,36,0.28); border-radius: 999px;
  padding: 6px 12px; margin: 0 auto 14px; width: fit-content;
  max-width: 100%;
}
.team-email {
  font-size: 0.76rem; color: var(--c-green); word-break: break-all;
  transition: var(--transition); display: block;
}
.team-email:hover { color: var(--c-text); }

/* ─── CONTACT ──────────────────────────────────────────── */
.contact-section { background: var(--c-bg); }

.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 52px; align-items: start; }

.contact-info h3, .contact-form-wrap h3 {
  font-family: 'Playfair Display', serif; font-size: 1.5rem; font-weight: 700;
  color: var(--c-text); margin-bottom: 28px;
}
.contact-items { display: flex; flex-direction: column; gap: 22px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item strong { display: block; font-size: 0.85rem; font-weight: 700; color: var(--c-text); margin-bottom: 5px; }
.contact-item p, .contact-item a { font-size: 0.83rem; color: var(--c-text-sub); line-height: 1.6; display: block; }
.contact-item a:hover { color: var(--c-green); }

.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.83rem; font-weight: 600; color: var(--c-text-sub); }
.form-group input, .form-group textarea {
  background: rgba(0,0,0,0.3); border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); color: var(--c-text);
  font-family: 'Inter', sans-serif; font-size: 0.9rem; padding: 12px 16px;
  transition: var(--transition); outline: none; resize: vertical;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(141,169,143,0.5); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--c-green); background: rgba(14,64,29,0.2); }

/* ─── FOOTER ───────────────────────────────────────────── */
.footer { background: var(--c-surface); border-top: 1px solid var(--c-border); padding: 48px 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-tagline { font-size: 0.82rem; color: var(--c-text-sub); margin-top: 10px; line-height: 1.6; }
.footer-links-group h4 { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-green); margin-bottom: 16px; }
.footer-links-group ul { display: flex; flex-direction: column; gap: 9px; }
.footer-links-group a { font-size: 0.85rem; color: var(--c-text-sub); transition: var(--transition); }
.footer-links-group a:hover { color: var(--c-text); }
.footer-bottom { border-top: 1px solid var(--c-border); padding-top: 24px; text-align: center; color: var(--c-text-sub); font-size: 0.78rem; }

/* ─── RESPONSIVE ───────────────────────────────────────── */
@media (max-width: 1024px) {
  .journey-group {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }
  .journey-group--reverse .journey-media,
  .journey-group--reverse .journey-copy { order: initial; }
  .journey-cluster-stage { height: 300px; }
  .tech-grid-small { grid-template-columns: repeat(2, 1fr); }
  .slides-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links { display: none; flex-direction: column; gap: 4px; position: absolute; top: 66px; left: 0; right: 0; background: rgba(7,16,10,0.97); padding: 16px 24px; border-bottom: 1px solid var(--c-border); backdrop-filter: blur(20px); }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }
  .hero-stats { flex-wrap: wrap; }
  .journey-cluster { grid-template-columns: 32px 1fr 32px; gap: 8px; }
  .journey-cluster-stage { height: 250px; }
  .journey-cluster-card.is-prev { transform: translateX(-10%) rotate(-4deg) scale(0.88); }
  .journey-cluster-card.is-next { transform: translateX(10%) rotate(4deg) scale(0.88); }
  .domain-panel-inner { padding: 28px 24px; }
  .domain-tabs { gap: 4px; }
  .tab-btn { font-size: 0.78rem; padding: 8px 12px; }
  .method-steps { grid-template-columns: 1fr; }
  .tech-grid-small { grid-template-columns: repeat(2, 1fr); }
  .milestone-selector-wrap { flex-direction: column; align-items: flex-start; }
  .milestone-header { flex-direction: column; gap: 12px; padding: 24px; }
  .milestone-body { padding: 24px; }
  .docs-grid { grid-template-columns: 1fr; }
  .slides-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid-supervisors { grid-template-columns: 1fr; max-width: 320px; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 480px) {
  .journey-cluster { grid-template-columns: 1fr; }
  .journey-nav { display: none; }
  .journey-cluster-stage { height: 220px; }
  .journey-cluster-card.is-prev { transform: translateX(-6%) rotate(-3deg) scale(0.9); }
  .journey-cluster-card.is-next { transform: translateX(6%) rotate(3deg) scale(0.9); }
  .tech-grid-small { grid-template-columns: 1fr; }
  .slides-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .milestone-marks-grid { grid-template-columns: repeat(2, 1fr); }
}