/* ═══════════════════════════════════════════════════════════
   FLOOD SEGMENTATION DASHBOARD — NEUROBRUTALISM
   Cyberpunk | Glitch | Neon | Raw Data Aesthetic
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── Reset & Variables ─────────────────────────────────────── */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #0e0e0e;
  --bg-card: #111111;
  --bg-surface: #161616;
  --border-primary: #ED1E28;
  --border-secondary: #B6252A;
  --border-dim: #2a2a2a;
  --text-primary: #e8e8e8;
  --text-secondary: #959597;
  --text-muted: #55565B;
  --telkom-red: #ED1E28;
  --telkom-darkred: #B6252A;
  --telkom-gray: #55565B;
  --telkom-lightgray: #959597;
  --neon-cyan: #ED1E28;
  --neon-magenta: #B6252A;
  --neon-lime: #ff6b6b;
  --neon-yellow: #ff4444;
  --neon-red: #ED1E28;
  --neon-blue: #B6252A;
  --gradient-neon: linear-gradient(90deg, #ED1E28, #B6252A);
  --gradient-warm: linear-gradient(90deg, #ff4444, #B6252A);
  --shadow-neon: 0 0 20px rgba(237, 30, 40, 0.3), 0 0 60px rgba(237, 30, 40, 0.1);
  --shadow-magenta: 0 0 20px rgba(182, 37, 42, 0.3), 0 0 60px rgba(182, 37, 42, 0.1);
  --radius: 2px;
  --radius-sm: 0px;
  --border-w: 2px;
  --transition: all 0.15s steps(2, end);
}

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

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

body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Scanline Overlay ──────────────────────────────────────── */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(237, 30, 40, 0.012) 2px,
    rgba(237, 30, 40, 0.012) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--neon-cyan); border-radius: 0; }

/* ── Navigation ────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0.5rem 1.5rem;
  background: var(--bg-primary);
  border-bottom: var(--border-w) solid var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-neon);
}

.nav-brand {
  font-weight: 800;
  font-size: 1rem;
  color: var(--neon-cyan);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 0;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border: 1px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  background: rgba(237, 30, 40, 0.05);
}

.nav-toggle {
  display: none;
  background: none;
  border: var(--border-w) solid var(--neon-cyan);
  color: var(--neon-cyan);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
}

/* ── Sections ──────────────────────────────────────────────── */
section {
  padding: 4rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border-dim);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--neon-cyan);
  margin-bottom: 0.75rem;
  padding: 0.25rem 0.75rem;
  background: rgba(237, 30, 40, 0.05);
  border: var(--border-w) solid var(--neon-cyan);
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 2.5rem;
  line-height: 1.5;
}

.section-subheading {
  color: var(--telkom-red);
  margin-bottom: 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Hero Section ──────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
  border-bottom: var(--border-w) solid var(--neon-magenta);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(237, 30, 40, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(182, 37, 42, 0.04) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(237, 30, 40, 0.05);
  border: var(--border-w) solid var(--neon-cyan);
  padding: 0.4rem 1.2rem;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--neon-cyan);
  margin-bottom: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: glitchIn 0.5s steps(4, end);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  animation: glitchIn 0.8s steps(6, end);
}

.hero h1 .gradient-text {
  color: var(--telkom-red);
  text-shadow: 0 0 10px rgba(237, 30, 40, 0.5), 0 0 40px rgba(237, 30, 40, 0.2);
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.6;
}

@keyframes glitchIn {
  0% { opacity: 0; transform: translateX(-20px); clip-path: inset(40% 0 60% 0); }
  20% { opacity: 0.8; transform: translateX(10px); clip-path: inset(10% 0 80% 0); }
  40% { opacity: 0.6; transform: translateX(-5px); clip-path: inset(60% 0 10% 0); }
  60% { opacity: 1; transform: translateX(3px); clip-path: inset(20% 0 30% 0); }
  80% { opacity: 0.9; transform: translateX(-1px); clip-path: inset(0); }
  100% { opacity: 1; transform: translateX(0); clip-path: inset(0); }
}

/* ── Stat Cards Row ────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--bg-card);
  border: var(--border-w) solid var(--border-dim);
  padding: 1.25rem;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon);
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(237, 30, 40, 0.4);
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Glass Cards (now Brutalist Cards) ─────────────────────── */
.glass-card {
  background: var(--bg-card);
  border: var(--border-w) solid var(--border-dim);
  padding: 1.5rem;
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--neon-magenta);
  box-shadow: var(--shadow-magenta);
}

/* ── EDA Grid ──────────────────────────────────────────────── */
.eda-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 2rem;
  border: var(--border-w) solid var(--border-dim);
}

.eda-tab {
  padding: 0.5rem 0.75rem;
  border: none;
  border-right: var(--border-w) solid var(--border-dim);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition);
  font-family: 'JetBrains Mono', monospace;
}

.eda-tab:last-child { border-right: none; }

.eda-tab:hover, .eda-tab.active {
  background: rgba(237, 30, 40, 0.08);
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

.eda-display {
  position: relative;
  min-height: 400px;
  border: var(--border-w) solid var(--border-dim);
  background: var(--bg-card);
}

.eda-item {
  display: none;
  animation: glitchIn 0.3s steps(3, end);
}

.eda-item.active {
  display: block;
}

.eda-item img {
  width: 100%;
  border-bottom: var(--border-w) solid var(--border-dim);
}

.eda-caption {
  margin: 0;
  padding: 1rem 1.25rem;
  background: rgba(237, 30, 40, 0.03);
  border-left: 3px solid var(--neon-cyan);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── Architecture Pipeline ─────────────────────────────────── */
.pipeline {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 2rem 0;
  justify-content: center;
  flex-wrap: wrap;
  border: var(--border-w) solid var(--border-dim);
  background: var(--bg-card);
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: 120px;
  padding: 1rem;
}

.pipeline-icon {
  width: 56px; height: 56px;
  border: var(--border-w) solid var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(237, 30, 40, 0.03);
  transition: var(--transition);
  letter-spacing: 0.05em;
}

.pipeline-icon:hover {
  background: rgba(237, 30, 40, 0.1);
  box-shadow: var(--shadow-neon);
}

.pipeline-step span {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pipeline-arrow {
  font-size: 1.2rem;
  color: var(--neon-cyan);
  margin: 0 0.25rem;
  flex-shrink: 0;
  text-shadow: 0 0 6px rgba(237, 30, 40, 0.4);
}

/* ── Spec Grid ─────────────────────────────────────────────── */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  margin-top: 2rem;
  border: var(--border-w) solid var(--border-dim);
}

.spec-item {
  background: var(--bg-card);
  border-right: var(--border-w) solid var(--border-dim);
  border-bottom: var(--border-w) solid var(--border-dim);
  padding: 1rem;
  transition: var(--transition);
}

.spec-item:hover {
  background: rgba(237, 30, 40, 0.03);
  border-color: var(--neon-cyan);
}

.spec-item .label {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neon-magenta);
  margin-bottom: 0.25rem;
}

.spec-item .value {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--neon-cyan);
}

/* ── Training Image ────────────────────────────────────────── */
.chart-container {
  margin: 2rem 0;
  border: var(--border-w) solid var(--border-dim);
  background: var(--bg-card);
}

.chart-container img {
  width: 100%;
  display: block;
  transition: var(--transition);
}

.chart-container img:hover {
  box-shadow: var(--shadow-neon);
}

/* ── Epoch Table ───────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border: var(--border-w) solid var(--border-dim);
  margin-top: 2rem;
  max-height: 500px;
  overflow-y: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
}

.data-table thead {
  position: sticky;
  top: 0;
  z-index: 10;
}

.data-table th {
  background: var(--bg-card);
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neon-cyan);
  border-bottom: var(--border-w) solid var(--neon-cyan);
}

.data-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.data-table tr:hover td {
  background: rgba(237, 30, 40, 0.03);
  color: var(--neon-cyan);
}

.data-table .best-row td {
  background: rgba(237, 30, 40, 0.06);
  color: var(--telkom-red);
  font-weight: 700;
  border-bottom: var(--border-w) solid var(--telkom-red);
}

/* ── IoU Bars ──────────────────────────────────────────────── */
.iou-grid {
  display: grid;
  gap: 0;
  margin-top: 2rem;
  border: var(--border-w) solid var(--border-dim);
}

.iou-row {
  display: grid;
  grid-template-columns: 180px 60px 1fr 50px;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border-dim);
  transition: var(--transition);
}

.iou-row:hover {
  background: rgba(237, 30, 40, 0.02);
}

.iou-row:last-child { border-bottom: none; }

.iou-class {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.iou-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 700;
}

.iou-bar-bg {
  height: 6px;
  background: var(--border-dim);
  overflow: hidden;
}

.iou-bar-fill {
  height: 100%;
  transition: width 1.5s steps(20, end);
  width: 0%;
}

.iou-status {
  font-size: 0.85rem;
  text-align: center;
}

/* ── Prediction Gallery ────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 0;
  margin-top: 2rem;
  border: var(--border-w) solid var(--border-dim);
}

.gallery-item {
  overflow: hidden;
  border-right: var(--border-w) solid var(--border-dim);
  border-bottom: var(--border-w) solid var(--border-dim);
  background: var(--bg-card);
  transition: var(--transition);
}

.gallery-item:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon);
}

.gallery-item img {
  width: 100%;
  display: block;
}

.gallery-item .caption {
  padding: 0.6rem 0.75rem;
  font-size: 0.65rem;
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-top: var(--border-w) solid var(--border-dim);
}

.gallery-item .caption .id-tag {
  font-family: 'JetBrains Mono', monospace;
  color: var(--neon-magenta);
  font-size: 0.65rem;
  background: rgba(182, 37, 42, 0.05);
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--neon-magenta);
}

/* ── Color Legend ──────────────────────────────────────────── */
.legend-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 1.5rem 0;
  border: var(--border-w) solid var(--border-dim);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.65rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  padding: 0.35rem 0.6rem;
  border-right: var(--border-w) solid var(--border-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.legend-dot {
  width: 10px; height: 10px;
  flex-shrink: 0;
}

/* ── Submission Stats ──────────────────────────────────────── */
.sub-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  margin: 2rem 0;
  border: var(--border-w) solid var(--border-dim);
}

.sub-stat {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--bg-card);
  border-right: var(--border-w) solid var(--border-dim);
  border-bottom: var(--border-w) solid var(--border-dim);
  transition: var(--transition);
}

.sub-stat:hover {
  border-color: var(--neon-yellow);
  background: rgba(237, 30, 40, 0.02);
}

.sub-stat .num {
  font-size: 2rem;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: var(--neon-yellow);
  text-shadow: 0 0 8px rgba(237, 30, 40, 0.3);
}

.sub-stat .desc {
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* ── Samples Grid ──────────────────────────────────────────── */
.samples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
  margin-top: 1.5rem;
  border: var(--border-w) solid var(--border-dim);
}

.samples-grid img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-right: var(--border-w) solid var(--border-dim);
  border-bottom: var(--border-w) solid var(--border-dim);
  transition: var(--transition);
}

.samples-grid img:hover {
  box-shadow: var(--shadow-neon);
  filter: saturate(1.3) contrast(1.1);
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  padding: 2.5rem 1.5rem;
  text-align: center;
  border-top: var(--border-w) solid var(--neon-magenta);
  background: var(--bg-secondary);
}

.footer-brand {
  font-size: 1rem;
  font-weight: 800;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.footer-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  margin-bottom: 1.5rem;
  border: var(--border-w) solid var(--border-dim);
}

.tech-tag {
  font-size: 0.6rem;
  font-weight: 600;
  padding: 0.3rem 0.6rem;
  border-right: var(--border-w) solid var(--border-dim);
  background: var(--bg-card);
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-copy {
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── Reveal Animations ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s steps(4, end), transform 0.4s steps(4, end);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Two Column ────────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: start;
  border: var(--border-w) solid var(--border-dim);
}

/* ── Glitch Text Effect ───────────────────────────────────── */
.glitch {
  position: relative;
}
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.glitch::before {
  color: var(--telkom-red);
  animation: glitch1 3s infinite;
  clip-path: inset(0 0 80% 0);
}
.glitch::after {
  color: var(--telkom-darkred);
  animation: glitch2 3s infinite;
  clip-path: inset(80% 0 0 0);
}

@keyframes glitch1 {
  0%, 90%, 100% { transform: translate(0); }
  92% { transform: translate(-3px, 1px); }
  94% { transform: translate(3px, -1px); }
  96% { transform: translate(-2px, 2px); }
}
@keyframes glitch2 {
  0%, 90%, 100% { transform: translate(0); }
  91% { transform: translate(3px, -1px); }
  93% { transform: translate(-3px, 1px); }
  95% { transform: translate(2px, -2px); }
}

/* ── CRT Flicker ──────────────────────────────────────────── */
@keyframes crtFlicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.98; }
  75% { opacity: 0.995; }
}

.hero-content {
  animation: crtFlicker 0.15s infinite;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--bg-primary);
    border-bottom: var(--border-w) solid var(--neon-cyan);
    padding: 0;
  }
  .nav-links.open a {
    border-bottom: 1px solid var(--border-dim);
    border-right: none;
  }
  section { padding: 3rem 1rem; }
  .section-title { font-size: 1.4rem; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .iou-row { grid-template-columns: 120px 50px 1fr 40px; }
  .pipeline { flex-direction: column; gap: 0; }
  .pipeline-arrow { transform: rotate(90deg); }
  .pipeline-step { border-bottom: 1px solid var(--border-dim); }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .eda-tabs { overflow-x: auto; flex-wrap: nowrap; }
}