/* ============================================================
   WindPred — style.css
   Sidebar layout, dark theme, full responsive
   ============================================================ */

/* ── Variables ──────────────────────────────────────────────── */
:root {
  --sidebar-w:     240px;
  --topbar-h:      56px;
  --bg:            #0b0f1a;
  --bg-card:       #111827;
  --bg-card2:      #1a2235;
  --bg-sidebar:    #0d1323;
  --bg-header:     #0d1525;
  --border:        rgba(255,255,255,0.07);
  --accent:        #0ea5e9;
  --accent-dark:   #0284c7;
  --cyan:          #06b6d4;
  --text:          #e2e8f0;
  --text-muted:    #64748b;
  --text-sub:      #94a3b8;
  --radius:        12px;
  --radius-sm:     8px;
  --shadow:        0 4px 24px rgba(0,0,0,0.4);
  --glow:          0 0 24px rgba(14,165,233,0.15);
  --trans:         0.22s ease;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 0.875rem;
  line-height: 1.65;
  margin: 0;
  overflow-x: hidden;
}

.font-mono { font-family: 'Space Grotesk', monospace !important; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.text-accent { color: var(--accent) !important; }
.text-cyan   { color: var(--cyan)   !important; }
.bg-accent   { background: var(--accent) !important; }

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: transform var(--trans);
  overflow-y: auto;
  overflow-x: hidden;
}

/* ── Sidebar Brand ──────────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 16px 18px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.brand-icon-wrap {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff; flex-shrink: 0;
  box-shadow: 0 0 14px rgba(14,165,233,0.35);
}

.brand-text { display: flex; flex-direction: column; min-width: 0; }

.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; font-size: 1rem; line-height: 1;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

.brand-sub {
  font-size: 0.68rem; color: var(--text-muted);
  margin-top: 2px; white-space: nowrap;
}

/* ── Sidebar Nav ────────────────────────────────────────────── */
.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 4px 8px 2px;
  margin-bottom: 2px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-sub);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.855rem;
  transition: var(--trans);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-link i {
  font-size: 1rem;
  flex-shrink: 0;
  width: 18px;
  text-align: center;
}

.sidebar-link:hover {
  background: rgba(14,165,233,0.08);
  color: var(--accent);
}

.sidebar-link.active {
  background: rgba(14,165,233,0.12);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-link.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 60%;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.sidebar-link { position: relative; }

/* ── Sidebar Footer ─────────────────────────────────────────── */
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-footer-text {
  font-size: 0.72rem;
  color: var(--text-sub);
  line-height: 1.4;
}

/* ── Mobile Overlay ─────────────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999;
  backdrop-filter: blur(2px);
}

/* ── Mobile Topbar ──────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: rgba(11,15,26,0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.topbar-toggle {
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}

.topbar-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; font-size: 1rem;
}

/* ── Main Wrapper & Content ─────────────────────────────────── */
.main-wrapper {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--trans);
}

.main-content {
  flex: 1;
  padding: 24px;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 12px 0;
}

/* ── Responsive: Mobile ─────────────────────────────────────── */
@media (max-width: 991.98px) {
  .sidebar {
    transform: translateX(calc(-1 * var(--sidebar-w)));
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.5);
  }
  .sidebar-overlay.show { display: block; }

  .main-wrapper {
    margin-left: 0;
    padding-top: var(--topbar-h);
  }
  .main-content { padding: 16px; }
}

@media (max-width: 575.98px) {
  .main-content { padding: 12px; }
}

/* ── Text Gradient ──────────────────────────────────────────── */
.text-gradient {
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Page Header ────────────────────────────────────────────── */
.page-header { margin-bottom: 1.5rem; }
.page-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; font-size: 1.5rem;
  margin-bottom: 4px;
}
.page-header p { color: var(--text-sub); margin: 0; }

/* ── Section Header ─────────────────────────────────────────── */
.section-header {
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--border); padding-bottom: 10px;
  margin-bottom: 16px;
}
.section-header h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600; font-size: 1rem; margin: 0;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card-dark {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--trans);
}
.card-dark:hover { border-color: rgba(14,165,233,0.18); }

.card-dark-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-header);
}
.card-dark-header h5, .card-dark-header h6 { margin-bottom: 0; }

.card-dark-body { padding: 18px; }

/* ── Stat Cards ─────────────────────────────────────────────── */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  text-align: center;
  transition: var(--trans);
  height: 100%;
}
.stat-card:hover {
  transform: translateY(-3px);
  border-color: rgba(14,165,233,0.2);
  box-shadow: var(--glow);
}
.stat-icon {
  width: 42px; height: 42px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.05rem; margin: 0 auto 10px;
}
.bg-accent-soft { background: rgba(14,165,233,0.12); }
.bg-cyan-soft   { background: rgba(6,182,212,0.12); }
.bg-green-soft  { background: rgba(34,197,94,0.12); }
.bg-warn-soft   { background: rgba(245,158,11,0.12); }

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem; font-weight: 700;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.stat-label { font-size: 0.73rem; color: var(--text-muted); margin-top: 2px; }

/* ── Model Cards ────────────────────────────────────────────── */
.model-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  text-align: center;
  position: relative;
  transition: var(--trans);
  height: 100%;
}
.model-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.model-card-best {
  border-color: rgba(34,197,94,0.35);
  box-shadow: 0 0 18px rgba(34,197,94,0.08);
}
.best-badge {
  position: absolute; top: -1px; right: -1px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff; font-size: 0.65rem; font-weight: 700;
  padding: 3px 10px;
  border-radius: 0 var(--radius) 0 var(--radius-sm);
}
.model-icon {
  font-size: 1.6rem; margin-bottom: 6px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.model-name  { font-weight: 600; font-size: 0.85rem; margin-bottom: 8px; }
.model-metric {
  display: flex; justify-content: space-between;
  font-size: 0.73rem; color: var(--text-muted);
  padding: 3px 0; border-bottom: 1px solid var(--border);
}
.metric-val { font-family: 'Space Grotesk'; color: var(--accent); font-weight: 600; }

/* ── Algo Cards ─────────────────────────────────────────────── */
.algo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px; height: 100%;
  transition: var(--trans);
}
.algo-card:hover {
  border-color: rgba(14,165,233,0.22);
  transform: translateY(-3px); box-shadow: var(--glow);
}
.algo-icon { font-size: 1.5rem; margin-bottom: 6px; }
.algo-name { font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; }
.algo-desc { font-size: 0.8rem; color: var(--text-sub); margin: 0; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero-section {
  background: radial-gradient(ellipse 80% 50% at 60% 0%,
    rgba(14,165,233,0.07) 0%, transparent 70%),
    linear-gradient(180deg, #0d1525 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  padding: 40px 0 32px;
}
.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 700; line-height: 1.2;
}
.hero-sub { font-size: 0.9rem; color: var(--text-sub); max-width: 500px; }
.badge-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(14,165,233,0.1); border: 1px solid rgba(14,165,233,0.28);
  color: var(--accent); border-radius: 100px;
  padding: 4px 14px; font-size: 0.75rem; font-weight: 500;
}

/* Hero wind visual */
.hero-visual {
  position: relative; height: 260px;
  display: flex; align-items: center; justify-content: center;
}
.wind-rings { position: absolute; top: 50%; left: 50%; }
.wind-ring {
  position: absolute; border-radius: 50%;
  border: 1.5px solid rgba(14,165,233,0.18);
  transform: translate(-50%, -50%);
  animation: ripple 3s linear infinite;
}
.r1 { width: 110px; height: 110px; animation-delay: 0s; }
.r2 { width: 190px; height: 190px; animation-delay: 1s; }
.r3 { width: 265px; height: 265px; animation-delay: 2s; }
@keyframes ripple {
  0%   { opacity: 0.5; transform: translate(-50%,-50%) scale(0.96); }
  100% { opacity: 0;   transform: translate(-50%,-50%) scale(1.08); }
}
.wind-icon-center {
  position: relative; z-index: 2;
  width: 76px; height: 76px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  border-radius: 50%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-size: 1.5rem; color: #fff;
  box-shadow: 0 0 30px rgba(14,165,233,0.4);
  animation: float 4s ease-in-out infinite;
}
.wind-speed-label { font-family: 'Space Grotesk'; font-size: 0.65rem; font-weight: 700; }
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  border: none; color: #fff; font-weight: 600;
  box-shadow: 0 4px 14px rgba(14,165,233,0.28);
  transition: var(--trans);
}
.btn-accent:hover { filter: brightness(1.1); color: #fff; box-shadow: 0 6px 20px rgba(14,165,233,0.45); }

.btn-outline-accent {
  border: 1px solid var(--accent); color: var(--accent);
  background: transparent; font-weight: 500;
}
.btn-outline-accent:hover { background: rgba(14,165,233,0.1); color: var(--accent); }

/* ── Forms ──────────────────────────────────────────────────── */
.form-control:focus, .form-select:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px rgba(14,165,233,0.15) !important;
  background: var(--bg-card2) !important;
}

/* ── Input section labels ───────────────────────────────────── */
.input-section-label {
  font-size: 0.72rem; font-weight: 700; color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.05em;
  padding: 4px 0; display: flex; align-items: center; gap: 4px;
}

/* ── Forecast Widget ────────────────────────────────────────── */
.forecast-item {
  padding: 8px 0; border-bottom: 1px solid var(--border);
}
.forecast-item:last-child { border-bottom: none; }
.fc-date   { font-family: 'Space Grotesk'; font-size: 0.8rem; font-weight: 600; }
.fc-badges { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 4px; }
.fc-badge  {
  display: inline-flex; align-items: center; gap: 3px;
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 7px; font-size: 0.72rem; color: var(--text-sub);
}

/* ── Predict Page ───────────────────────────────────────────── */
.tab-mode-btn {
  flex: 1; padding: 8px; border: 1px solid var(--border);
  background: transparent; color: var(--text-sub);
  font-size: 0.82rem; font-weight: 500;
  border-radius: var(--radius-sm); transition: var(--trans); cursor: pointer;
}
.tab-mode-btn.active {
  background: rgba(14,165,233,0.12); color: var(--accent);
  border-color: rgba(14,165,233,0.35);
}
.tab-mode-btn:hover { background: rgba(14,165,233,0.07); color: var(--accent); }

.result-model-block {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: var(--trans);
}
.result-model-block:hover { border-color: rgba(14,165,233,0.2); }
.result-model-block.best  { border-color: rgba(34,197,94,0.35); background: rgba(34,197,94,0.04); }

.result-val-big {
  font-family: 'Space Grotesk'; font-size: 2rem; font-weight: 700; line-height: 1;
}
.result-val-sm {
  font-family: 'Space Grotesk'; font-size: 1.1rem; font-weight: 600; line-height: 1;
}
.category-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 100px;
  font-weight: 600; font-size: 0.82rem;
}
.interpretation-box {
  background: rgba(14,165,233,0.06);
  border: 1px solid rgba(14,165,233,0.15);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); padding: 12px 14px;
  font-size: 0.82rem; color: var(--text-sub);
}
.info-ref-box {
  background: rgba(34,197,94,0.05);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: var(--radius-sm); padding: 12px 14px;
  font-size: 0.82rem;
}

/* Gauge */
.gauge-wrap { position: relative; display: inline-block; }
.gauge-center {
  position: absolute; bottom: 20px; left: 50%;
  transform: translateX(-50%); text-align: center; pointer-events: none;
}
.gauge-val {
  font-family: 'Space Grotesk'; font-size: 1.8rem; font-weight: 700; line-height: 1;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.gauge-unit { font-size: 0.7rem; color: var(--text-muted); }

/* ── Compare Page ───────────────────────────────────────────── */
.compare-table th {
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--text-muted);
  background: var(--bg-header); padding: 10px 14px;
  border-bottom: 1px solid var(--border) !important;
}
.compare-table td { padding: 10px 14px; vertical-align: middle; }
.table-best td { background: rgba(34,197,94,0.04); }
.me-item {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 6px 0; border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}
.me-badge {
  padding: 2px 8px; border-radius: 4px;
  font-size: 0.7rem; font-weight: 700; color: #fff; white-space: nowrap; flex-shrink: 0;
}
.bg-cyan  { background: var(--cyan) !important; }
.alert-accent {
  background: rgba(14,165,233,0.08); border: 1px solid rgba(14,165,233,0.22);
  color: var(--text); border-radius: var(--radius-sm);
}
.pros-cons-box { background: var(--bg); border-radius: var(--radius-sm); padding: 10px; }
.pros { border-left: 3px solid #22c55e; }
.cons { border-left: 3px solid #ef4444; }
.accordion-button::after { filter: invert(0.5); }
.accordion-button:not(.collapsed) { color: var(--accent) !important; background: transparent !important; }
.accordion-button:focus { box-shadow: none !important; }

/* ── Clustering Page ────────────────────────────────────────── */
.cluster-label-card {
  border: 1px solid; border-radius: var(--radius);
  padding: 14px 12px; text-align: center; transition: var(--trans); height: 100%;
}
.cluster-label-card:hover { transform: translateY(-3px); }
.cluster-emoji { font-size: 1.8rem; margin-bottom: 4px; }
.cluster-name  { font-weight: 700; font-size: 0.9rem; }
.cluster-desc  { font-size: 0.73rem; color: var(--text-muted); margin-top: 4px; }

/* ── Dataset Page ───────────────────────────────────────────── */
.dataset-table th {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--text-muted); background: var(--bg-header);
  padding: 9px 12px; border-bottom: 1px solid var(--border) !important;
  white-space: nowrap; position: sticky; top: 0; z-index: 2;
}
.dataset-table td { padding: 8px 12px; font-size: 0.82rem; white-space: nowrap; }
.dataset-table tr:hover td { background: rgba(14,165,233,0.04); }
.ff-avg-cell { font-family: 'Space Grotesk'; font-weight: 600; }
.dataset-pagination .page-link {
  background: var(--bg-card); border-color: var(--border); color: var(--text-sub);
  font-size: 0.8rem; padding: 4px 10px;
}
.dataset-pagination .page-item.active .page-link { background: var(--accent); border-color: var(--accent); }
.dataset-pagination .page-link:hover { background: rgba(14,165,233,0.1); color: var(--accent); }

/* ── About Page ─────────────────────────────────────────────── */
.about-item {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 0.84rem;
}
.about-label { color: var(--text-muted); flex-shrink: 0; }
.about-val   { text-align: right; }
.stack-item  {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 0.83rem;
}
.stack-item i { font-size: 1.05rem; flex-shrink: 0; margin-top: 2px; }
.methodology-flow { display: flex; flex-wrap: wrap; gap: 0; align-items: stretch; }
.method-step {
  display: flex; flex-direction: column; align-items: center;
  flex: 1; min-width: 110px; text-align: center; padding: 0 6px;
}
.method-num { font-family: 'Space Grotesk'; font-size: 1.4rem; font-weight: 700; }
.method-icon { font-size: 1.4rem; margin: 4px 0; }
.method-title { font-weight: 600; font-size: 0.82rem; }
.method-desc  { font-size: 0.71rem; color: var(--text-muted); margin-top: 3px; line-height: 1.35; }
.method-arrow { display: flex; align-items: center; padding: 0 4px; padding-top: 1.8rem; color: var(--text-muted); font-size: 1.1rem; flex-shrink: 0; }

/* ── API Docs ───────────────────────────────────────────────── */
.method-badge { padding: 3px 10px; border-radius: 5px; font-size: 0.72rem; font-weight: 700; font-family: 'Space Grotesk'; }
.method-get  { background: rgba(34,197,94,0.14);  color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.method-post { background: rgba(14,165,233,0.14); color: var(--accent); border: 1px solid rgba(14,165,233,0.3); }
.code-label  { font-size: 0.7rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 5px; }
.code-block  {
  background: rgba(0,0,0,0.38); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 10px 12px; font-size: 0.73rem;
  overflow-x: auto; white-space: pre-wrap; word-break: break-all;
  color: var(--text-sub); margin: 0; max-height: 160px; overflow-y: auto;
}

/* ── Spinner Overlay ────────────────────────────────────────── */
.spinner-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(11,15,26,0.82);
  display: flex; align-items: center; justify-content: center;
}
.spinner-ring {
  width: 46px; height: 46px;
  border: 4px solid rgba(14,165,233,0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite; margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Chart Container ────────────────────────────────────────── */
.chart-container { position: relative; }

/* ── Animations ─────────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(16px); animation: fadeUp 0.45s ease forwards; }
.delay-1 { animation-delay: 0.08s; }
.delay-2 { animation-delay: 0.16s; }
.delay-3 { animation-delay: 0.24s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(14,165,233,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ═══════════════════════════════════════════════════════════
   MOBILE RESPONSIVE — comprehensive breakpoints
   ═══════════════════════════════════════════════════════════ */

/* ── Tablet (≤768px) ──────────────────────────────────────── */
@media (max-width: 767.98px) {

  /* Hero section */
  .hero-section { padding: 24px 0 20px; }
  .hero-visual   { display: none; }

  /* Forecast widget jangan terlalu tinggi */
  .forecast-item { padding: 6px 0; }
  .fc-date       { font-size: 0.75rem; }
  .fc-badge      { font-size: 0.68rem; padding: 2px 5px; }

  /* Compare page: accordion content */
  .pros-cons-box { padding: 8px; }
  .me-item       { font-size: 0.77rem; }

  /* About: methodology flow */
  .methodology-flow { flex-direction: column; align-items: flex-start; gap: 6px; }
  .method-step      { flex-direction: row; align-items: center; gap: 10px;
                       min-width: 0; text-align: left; padding: 0; }
  .method-arrow     { transform: rotate(90deg); padding: 2px 0 2px 18px; }
  .method-num       { font-size: 1.1rem; }

  /* Dataset: filter bar wrapping */
  .dataset-filter-bar { flex-direction: column; align-items: stretch !important; gap: 8px !important; }
  .dataset-filter-bar .input-group,
  .dataset-filter-bar select { width: 100% !important; }
}

/* ── Mobile (≤575px) ──────────────────────────────────────── */
@media (max-width: 575.98px) {

  /* Global typography */
  .hero-title      { font-size: 1.4rem; }
  .stat-value      { font-size: 1.2rem; }
  .stat-icon       { width: 36px; height: 36px; font-size: 0.9rem; }
  .card-dark-body  { padding: 12px; }
  .card-dark-header{ padding: 10px 12px; }
  .page-header h2  { font-size: 1.25rem; }
  .page-header p   { font-size: 0.82rem; }

  /* Stat cards — 2 kolom tetap tapi lebih compact */
  .stat-card       { padding: 12px 10px; }
  .stat-label      { font-size: 0.68rem; }

  /* Predict page — layout responsif */
  /* Gauge: skala canvas via transform agar tidak overflow */
  .gauge-wrap      { transform-origin: top center; transform: scale(0.85); margin: 0 auto; display: block; }
  .gauge-val       { font-size: 1.5rem; }
  .result-val-big  { font-size: 1.5rem; }
  .result-val-sm   { font-size: 0.95rem; }
  .result-model-block { padding: 10px 10px; }
  .category-pill   { font-size: 0.75rem; padding: 3px 10px; }
  .interpretation-box { font-size: 0.78rem; padding: 10px 12px; }
  .info-ref-box    { font-size: 0.78rem; padding: 10px 12px; }
  .tab-mode-btn    { font-size: 0.78rem; padding: 7px 6px; }

  /* Input form: label + field lebih compact */
  .input-section-label { font-size: 0.68rem; }
  .form-control, .form-select { font-size: 0.82rem; }

  /* Compare page: tabel font lebih kecil agar muat */
  .compare-table th { font-size: 0.68rem; padding: 8px 8px; }
  .compare-table td { padding: 8px 8px; font-size: 0.8rem; }

  /* Clustering: pie chart container responsif */
  .cluster-chart-pie { width: 100% !important; height: 200px !important; }

  /* Dataset: controls */
  .dataset-filter-bar { flex-direction: column; align-items: stretch !important; gap: 6px !important; }
  .dataset-filter-bar .input-group,
  .dataset-filter-bar select,
  .dataset-filter-bar button { width: 100% !important; }
  .dataset-table th { font-size: 0.68rem; padding: 7px 8px; }
  .dataset-table td { padding: 6px 8px; font-size: 0.78rem; }

  /* About page */
  .about-item     { flex-direction: column; gap: 2px; }
  .about-val      { text-align: left; font-size: 0.82rem; }
  .about-label    { font-size: 0.78rem; }
  .stack-item     { font-size: 0.78rem; }
  .methodology-flow { flex-direction: column; gap: 4px; }
  .method-step    { flex-direction: row; align-items: center; gap: 8px;
                    min-width: 0; text-align: left; padding: 4px 0; }
  .method-arrow   { transform: rotate(90deg); padding: 2px 0 2px 14px; }
  .method-num     { font-size: 1rem; }
  .method-title   { font-size: 0.78rem; }
  .method-desc    { font-size: 0.68rem; }

  /* Cluster label cards — 2 kolom sudah ok, cuma ukuran font */
  .cluster-emoji  { font-size: 1.4rem; }
  .cluster-name   { font-size: 0.82rem; }
  .cluster-desc   { font-size: 0.68rem; }

  /* Badge pills di hero */
  .badge-pill     { font-size: 0.7rem; padding: 3px 10px; }
  .d-flex.gap-2.mt-3.flex-wrap { gap: 6px !important; }

  /* Footer */
  .site-footer    { padding: 12px 0; font-size: 0.75rem; text-align: center; }
  .site-footer .col-md-6 { text-align: center !important; }
}