/* ═══════════════════════════════════════════════════════════════════
   FakeProfileDetector — Main Stylesheet v2.0
   Dark SaaS dashboard with glassmorphism UI
═══════════════════════════════════════════════════════════════════ */

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

:root {
  --bg-deep:    #020617;
  --bg-dark:    #0a0f1e;
  --bg-card:    rgba(255,255,255,0.04);
  --bg-card-hv: rgba(255,255,255,0.07);
  --border:     rgba(255,255,255,0.08);
  --border-glow:rgba(99,179,237,0.35);

  --cyan:   #00d4ff;
  --green:  #00ffa6;
  --amber:  #ffb347;
  --red:    #ff4d6d;
  --blue:   #4f9eff;
  --purple: #a78bfa;

  --text-primary:   #f0f4ff;
  --text-secondary: rgba(240,244,255,0.55);
  --text-muted:     rgba(240,244,255,0.35);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;

  --font: 'Inter', system-ui, sans-serif;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Animated background ────────────────────────────────────────── */
.bg-grid {
  position: fixed; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(99,179,237,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,179,237,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.bg-orb {
  position: fixed; border-radius: 50%;
  filter: blur(80px); opacity: 0.12;
  pointer-events: none; animation: orbFloat 8s ease-in-out infinite;
}
.orb-1 { width:600px; height:600px; top:-200px; right:-100px;
          background: radial-gradient(circle, #00d4ff, transparent); }
.orb-2 { width:500px; height:500px; bottom:-150px; left:-100px;
          background: radial-gradient(circle, #a78bfa, transparent);
          animation-delay: -4s; }
.orb-3 { width:300px; height:300px; top:40%; left:40%;
          background: radial-gradient(circle, #00ffa6, transparent);
          animation-delay: -2s; opacity:0.06; }

@keyframes orbFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  50%      { transform: translate(20px,-20px) scale(1.05); }
}

/* ── Navbar ─────────────────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 32px;
  background: rgba(2,6,23,0.75);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-brand { display:flex; align-items:center; gap:10px; }
.nav-logo   { font-size:22px; color:var(--cyan); }
.nav-title  { font-size:16px; font-weight:700; letter-spacing:-0.3px; }
.nav-badge  { font-size:10px; padding:2px 8px; border-radius:20px;
               background:rgba(0,212,255,0.12); color:var(--cyan);
               border:1px solid rgba(0,212,255,0.25); font-weight:600; }

.nav-links  { display:flex; gap:6px; }
.nav-link   { padding:7px 14px; border-radius:8px; font-size:13px;
               color:var(--text-secondary); text-decoration:none;
               transition:var(--transition); font-weight:500; }
.nav-link:hover, .nav-link.active {
  color:var(--text-primary);
  background:rgba(255,255,255,0.06);
}
.nav-link.active { color:var(--cyan); }

/* ── Glass card ─────────────────────────────────────────────────── */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0,0,0,0.25),
              inset 0 1px 0 rgba(255,255,255,0.05);
  transition: var(--transition);
}
.glass-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 40px rgba(0,212,255,0.08),
              inset 0 1px 0 rgba(255,255,255,0.07);
}

/* ── Gradient text ──────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--cyan), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ════════════════════════════════════════════════════════════════
   INDEX / ANALYZER PAGE
════════════════════════════════════════════════════════════════ */
.hero-section {
  position: relative; z-index: 1;
  max-width: 820px; margin: 0 auto;
  padding: 60px 24px 40px;
  text-align: center;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 20px; margin-bottom: 24px;
  background: rgba(0,212,255,0.08); color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.2); font-size: 12px; font-weight: 600;
  letter-spacing: 0.5px; text-transform: uppercase;
}

.hero-title {
  font-size: clamp(32px, 5vw, 54px);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -1px; margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 16px; color: var(--text-secondary);
  line-height: 1.7; max-width: 560px; margin: 0 auto 40px;
}

/* Analyzer Card */
.analyzer-card {
  padding: 36px 40px; text-align: left; margin-bottom: 32px;
}
@media (max-width:600px) { .analyzer-card { padding: 24px 20px; } }

.card-header { margin-bottom: 28px; }
.card-header h2 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.card-header p  { font-size: 13px; color: var(--text-secondary); }

/* Form grid */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
@media (max-width:580px) { .form-grid { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.full-width  { grid-column: 1 / -1; }

.form-label {
  font-size: 12px; font-weight: 600;
  color: var(--text-secondary); letter-spacing: 0.3px;
  display: flex; align-items: center; gap: 6px;
}
.label-icon { font-size: 13px; }

.form-input {
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
  font-size: 14px; font-family: var(--font);
  outline: none; transition: var(--transition);
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus {
  border-color: rgba(0,212,255,0.4);
  background: rgba(0,212,255,0.04);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}

/* Checkbox */
.checkbox-label {
  display: flex; align-items: center; gap: 12px;
  cursor: pointer; font-size: 13px; color: var(--text-secondary);
  user-select: none;
}
.checkbox-input { display: none; }
.checkbox-custom {
  width: 18px; height: 18px; border-radius: 5px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  transition: var(--transition); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.checkbox-input:checked + .checkbox-custom {
  background: var(--cyan); border-color: var(--cyan);
}
.checkbox-input:checked + .checkbox-custom::after {
  content: '✓'; color: #000; font-size: 11px; font-weight: 800;
}

/* Analyze button */
.btn-analyze {
  width: 100%; padding: 14px; border: none;
  border-radius: var(--radius-md); cursor: pointer;
  font-size: 15px; font-weight: 700; letter-spacing: 0.3px;
  font-family: var(--font);
  background: linear-gradient(135deg, #00b4d8, #00ffa6);
  color: #000;
  position: relative; overflow: hidden;
  transition: var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.btn-analyze::before {
  content:''; position:absolute; top:0; left:-100%;
  width:100%; height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,0.35),transparent);
  transition:0.6s;
}
.btn-analyze:hover::before { left:100%; }
.btn-analyze:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,212,255,0.4);
}
.btn-analyze:active { transform: translateY(0); }

/* Spinner */
.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(0,0,0,0.3);
  border-top-color: #000; border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Error msg */
.error-msg {
  margin-top: 14px; padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255,77,109,0.12);
  border: 1px solid rgba(255,77,109,0.25);
  color: var(--red); font-size: 13px; text-align:center;
}

/* Feature pills */
.feature-pills {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 10px; margin-top: 8px;
}
.pill {
  padding: 6px 14px; border-radius: 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-size: 12px; color: var(--text-secondary); font-weight: 500;
}

/* ════════════════════════════════════════════════════════════════
   DASHBOARD PAGE
════════════════════════════════════════════════════════════════ */
.dashboard-page { background: var(--bg-dark); }

.dash-container {
  position: relative; z-index: 1;
  max-width: 1280px; margin: 0 auto;
  padding: 32px 24px 60px;
}

/* ── Hero row ─────────────────────────────────────────────────── */
.dash-hero {
  display: grid;
  grid-template-columns: 220px 1fr 280px;
  gap: 24px; align-items: center;
  margin-bottom: 28px;
  padding: 28px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(24px);
}
@media (max-width:900px) {
  .dash-hero { grid-template-columns: 1fr; text-align:center; }
}

/* Risk circle */
.risk-circle-wrap {
  position: relative; width: 180px; height: 180px;
  margin: 0 auto;
}
.risk-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.risk-score-big {
  font-size: 38px; font-weight: 800; line-height: 1;
}
.risk-label { font-size: 10px; color: var(--text-muted); margin-top: 4px; letter-spacing:.5px; }

/* Status badge */
.status-badge {
  display: inline-block; padding: 6px 20px;
  border-radius: 20px; font-size: 13px; font-weight: 700;
  letter-spacing: 1.5px; margin-bottom: 12px;
}
.status-real        { background:rgba(0,255,166,0.12); color:var(--green); border:1px solid rgba(0,255,166,0.3); }
.status-suspicious  { background:rgba(255,179,71,0.12); color:var(--amber); border:1px solid rgba(255,179,71,0.3); }
.status-high-risk   { background:rgba(255,77,109,0.12); color:var(--red); border:1px solid rgba(255,77,109,0.3);
                       animation: pulseRed 2s ease-in-out infinite; }
.status-loading     { background:rgba(255,255,255,0.06); color:var(--text-muted); }

@keyframes pulseRed {
  0%,100% { box-shadow: 0 0 0 0 rgba(255,77,109,0); }
  50%      { box-shadow: 0 0 0 6px rgba(255,77,109,0.2); }
}

.profile-username { font-size: 26px; font-weight: 800; margin-bottom: 12px; }
.explanation-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* Score breakdown bars */
.score-breakdown { display:flex; flex-direction:column; gap:12px; }
.score-item { display:flex; align-items:center; gap:10px; }
.score-label { font-size:11px; color:var(--text-muted); width:130px; flex-shrink:0; }
.score-bar-wrap {
  flex: 1; height: 6px; background: rgba(255,255,255,0.07);
  border-radius: 3px; overflow: hidden;
}
.score-bar {
  height: 100%; width: 0%; border-radius: 3px;
  transition: width 1s cubic-bezier(0.4,0,0.2,1);
}
.rule-bar    { background: linear-gradient(90deg, #4f9eff, #a78bfa); }
.rf-bar      { background: linear-gradient(90deg, #00ffa6, #00d4ff); }
.lr-bar      { background: linear-gradient(90deg, #ffb347, #ff6b6b); }
.hybrid-bar  { background: linear-gradient(90deg, #00d4ff, #00ffa6); }
.score-value { font-size:12px; font-weight:700; width:36px; text-align:right; }
.score-item-hybrid .score-label { color: var(--cyan); font-weight:600; }

/* ── Metric grid ──────────────────────────────────────────────── */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px; margin-bottom: 24px;
}
@media (max-width:1100px) { .metric-grid { grid-template-columns: repeat(3,1fr); } }
@media (max-width:600px)  { .metric-grid { grid-template-columns: repeat(2,1fr); } }

.metric-card {
  padding: 20px; display: flex; gap: 14px; align-items: center;
}
.metric-icon { font-size: 24px; }
.metric-value { font-size: 22px; font-weight: 800; line-height: 1; }
.metric-label { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ── Charts grid ──────────────────────────────────────────────── */
.charts-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px; margin-bottom: 24px;
}
@media (max-width:800px) { .charts-grid { grid-template-columns: 1fr; } }

.chart-card { padding: 24px; }
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.card-sub   { font-size: 12px; color: var(--text-muted); margin-bottom: 16px; }
.chart-wrap { position: relative; height: 260px; }
.chart-wrap-tall { height: 320px; }

/* ── Bottom grid ──────────────────────────────────────────────── */
.bottom-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 20px; margin-bottom: 28px;
}
@media (max-width:900px) { .bottom-grid { grid-template-columns: 1fr; } }

.flagged-card, .anomaly-card, .features-card { padding: 24px; }

/* Flags list */
.flags-list { display: flex; flex-direction: column; gap: 10px; }
.flag-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: rgba(255,77,109,0.06);
  border: 1px solid rgba(255,77,109,0.15);
  font-size: 13px; line-height: 1.5;
}
.flag-weight {
  flex-shrink: 0; font-size: 11px; font-weight: 700;
  color: var(--red); margin-top: 1px;
}
.no-flags {
  padding: 12px; text-align: center;
  font-size: 13px; color: var(--green);
  background: rgba(0,255,166,0.06);
  border: 1px solid rgba(0,255,166,0.15);
  border-radius: var(--radius-sm);
}

/* Anomaly list */
.anomaly-list { display: flex; flex-direction: column; gap: 10px; }
.anomaly-item {
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: rgba(255,179,71,0.06);
  border: 1px solid rgba(255,179,71,0.15);
  font-size: 13px; color: var(--amber); line-height: 1.5;
}

/* Feature table */
.feature-table { display: flex; flex-direction: column; gap: 6px; }
.ft-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 12px; border-radius: 8px;
  background: rgba(255,255,255,0.03);
  font-size: 12px;
}
.ft-key   { color: var(--text-secondary); }
.ft-value { font-weight: 600; color: var(--text-primary); }

.placeholder-text { font-size: 13px; color: var(--text-muted); text-align:center; padding:12px; }

/* Back button */
.back-row { text-align: center; }
.btn-back {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-secondary); text-decoration: none;
  font-size: 14px; font-weight: 500;
  transition: var(--transition);
}
.btn-back:hover {
  background: rgba(255,255,255,0.09);
  color: var(--text-primary);
  border-color: var(--border-glow);
}

/* ════════════════════════════════════════════════════════════════
   RESEARCH PAGE
════════════════════════════════════════════════════════════════ */
.research-header { text-align:center; padding:40px 0 32px; }
.research-badge {
  display: inline-block; padding:5px 14px; border-radius:20px; margin-bottom:16px;
  background:rgba(167,139,250,0.1); color:var(--purple);
  border:1px solid rgba(167,139,250,0.25); font-size:12px; font-weight:600; letter-spacing:.5px;
}
.research-title { font-size:clamp(28px,4vw,44px); font-weight:800; margin-bottom:12px; }
.research-subtitle { font-size:15px; color:var(--text-secondary); max-width:620px; margin:0 auto; line-height:1.7; }

/* Model metrics grid */
.model-metrics-grid {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 20px; margin-bottom: 28px;
}
@media (max-width:700px) { .model-metrics-grid { grid-template-columns: 1fr; } }

.model-metric-card {
  padding: 24px;
}
.model-metric-card .model-name {
  font-size:16px; font-weight:700; margin-bottom:16px;
  display:flex; align-items:center; gap:8px;
}
.metrics-row {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 12px;
}
.metric-box {
  padding: 12px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  text-align: center;
}
.metric-box-val { font-size:22px; font-weight:800; }
.metric-box-lbl { font-size:10px; color:var(--text-muted); margin-top:2px; letter-spacing:.5px; }
.metric-accuracy  .metric-box-val { color: var(--cyan); }
.metric-precision .metric-box-val { color: var(--green); }
.metric-recall    .metric-box-val { color: var(--amber); }
.metric-f1        .metric-box-val { color: var(--purple); }
.metric-auc       .metric-box-val { color: var(--blue); }

/* Confusion matrix */
.confusion-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px; margin-bottom: 24px;
}
@media (max-width:700px) { .confusion-grid { grid-template-columns: 1fr; } }

.confusion-card { padding: 24px; }
.cm-wrap {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px; margin-top: 16px; max-width:280px; margin-left:auto; margin-right:auto;
}
.cm-cell {
  padding: 18px 10px; border-radius: var(--radius-sm);
  text-align: center; font-weight: 700;
}
.cm-cell-label { font-size:10px; color:var(--text-muted); margin-bottom:4px; }
.cm-cell-value { font-size:26px; }
.cm-tp { background:rgba(0,255,166,0.12); color:var(--green); }
.cm-tn { background:rgba(0,212,255,0.10); color:var(--cyan); }
.cm-fp { background:rgba(255,77,109,0.10); color:var(--red); }
.cm-fn { background:rgba(255,179,71,0.10); color:var(--amber); }

/* Architecture diagram */
.arch-card { padding: 32px; margin-top: 8px; }
.arch-diagram {
  display: flex; flex-direction: column;
  align-items: center; gap: 4px; margin-top: 20px;
}
.arch-layer { display:flex; align-items:center; justify-content:center; gap:16px; }
.arch-layer.dual { flex-direction:row; }
.arch-arrow { color: var(--text-muted); font-size:18px; margin:2px 0; }
.arch-connector { font-size:20px; font-weight:800; color:var(--cyan); }

.arch-node {
  padding: 12px 22px; border-radius: var(--radius-md);
  font-size: 13px; font-weight: 600; text-align: center;
  border: 1px solid var(--border); line-height:1.5;
}
.arch-node small { font-size:10px; color:var(--text-muted); font-weight:400; display:block; }

.input-node   { background:rgba(0,212,255,0.07); border-color:rgba(0,212,255,0.25); color:var(--cyan); }
.feature-node { background:rgba(167,139,250,0.07); border-color:rgba(167,139,250,0.25); color:var(--purple); }
.rule-node    { background:rgba(79,158,255,0.07); border-color:rgba(79,158,255,0.25); color:var(--blue); }
.ml-node      { background:rgba(0,255,166,0.07); border-color:rgba(0,255,166,0.25); color:var(--green); }
.hybrid-node  { background:rgba(0,212,255,0.10); border-color:rgba(0,212,255,0.35); color:var(--cyan); padding:16px 32px; }
.output-node  { background:rgba(255,179,71,0.07); border-color:rgba(255,179,71,0.25); color:var(--amber); }

/* ── Loading state ──────────────────────────────────────────────── */
.loading-state { grid-column:1/-1; text-align:center; padding:40px; color:var(--text-muted); font-size:14px; }

/* ── Utility ─────────────────────────────────────────────────────── */
.hidden { display: none !important; }