/* ── Variables ─────────────────────────────────────── */
:root {
  --bg:        #0b0c10;
  --surface:   #13141a;
  --surface2:  #1c1e28;
  --border:    #272934;
  --accent:    #c8ff3e;
  --accent2:   #3effd5;
  --text:      #e8eaf0;
  --muted:     #7a7f96;
  --danger:    #ff4f5a;
  --radius:    12px;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: inherit; text-decoration: none; }

/* ══════════════════════════════════════════════════
   LOGIN PAGE
══════════════════════════════════════════════════ */
.login-body { display: flex; align-items: stretch; min-height: 100vh; }

.login-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
  min-height: 100vh;
}

/* Left visual panel */
.login-visual {
  background: var(--surface);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border);
}

.login-visual::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(200,255,62,0.12) 0%, transparent 70%);
  top: -100px; left: -100px;
  animation: pulse 6s ease-in-out infinite;
}

.login-visual::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(62,255,213,0.08) 0%, transparent 70%);
  bottom: -80px; right: -80px;
  animation: pulse 6s ease-in-out infinite 3s;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.7; }
}

.visual-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.logo-mark {
  font-size: 4rem;
  color: var(--accent);
  margin-bottom: 1rem;
  display: block;
  animation: spin 20s linear infinite;
}
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.brand {
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--text);
  margin-bottom: 1rem;
}

.tagline {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 260px;
  margin: 0 auto;
  line-height: 1.6;
}

.decorative-grid {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.3;
  z-index: 0;
}

/* Right form panel */
.login-form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: var(--bg);
}

.form-container {
  width: 100%;
  max-width: 400px;
}

.form-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.form-title {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text);
}

/* Error alert */
.alert-error {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,79,90,0.12);
  border: 1px solid rgba(255,79,90,0.3);
  color: var(--danger);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  animation: shake 0.4s ease;
}
@keyframes shake {
  0%,100%{transform:translateX(0)} 20%{transform:translateX(-6px)} 60%{transform:translateX(6px)}
}

/* Form fields */
.auth-form { display: flex; flex-direction: column; gap: 1.25rem; }

.field-group { display: flex; flex-direction: column; gap: 0.5rem; }

.field-group label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-transform: uppercase;
}

.input-wrap input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.875rem 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-wrap input::placeholder { color: var(--muted); }
.input-wrap input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,255,62,0.12);
}

/* Primary button */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #0b0c10;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.9rem 1.5rem;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: transform 0.15s, box-shadow 0.15s;
  letter-spacing: 0.04em;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,255,62,0.3);
}
.btn-primary:active { transform: translateY(0); }

/* Demo hint */
.demo-hint {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.demo-hint span { font-weight: 600; color: var(--accent2); }

/* ══════════════════════════════════════════════════
   HOME PAGE
══════════════════════════════════════════════════ */
.home-body { display: flex; flex-direction: column; }

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.nav-brand {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--accent);
}

.nav-right { display: flex; align-items: center; gap: 1.5rem; }

.nav-user {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.9rem; color: var(--text);
}

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #0b0c10;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.85rem;
}

.btn-logout {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--muted);
  transition: all 0.2s;
}
.btn-logout:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(255,79,90,0.08);
}

/* Hero */
.hero {
  padding: 5rem 2.5rem 4rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(200,255,62,0.08), transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 700px; }

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: block;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-title .highlight {
  color: var(--accent);
  position: relative;
}

.hero-sub {
  font-size: 1rem;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.7;
}

/* Main */
.main-content { padding: 3rem 2.5rem; }

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform 0.2s, border-color 0.2s;
  position: relative;
  overflow: hidden;
}
.card:hover { transform: translateY(-4px); border-color: var(--muted); }

.card--accent {
  border-color: rgba(200,255,62,0.3);
  background: linear-gradient(135deg, rgba(200,255,62,0.06), var(--surface));
}

.card-icon { font-size: 2rem; margin-bottom: 1rem; }

.card h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card p { font-size: 0.875rem; color: var(--muted); line-height: 1.6; }

.card-tag {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.25rem 0.6rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Session info */
.session-info { display: flex; }

.session-box {
  display: flex; align-items: center; gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  font-size: 0.85rem;
}

.session-label { color: var(--muted); }

.session-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

.session-user { font-weight: 600; font-family: var(--font-head); letter-spacing: 0.03em; }

/* Footer */
.footer {
  margin-top: auto;
  padding: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}
.footer a { color: var(--accent); }
.footer a:hover { text-decoration: underline; }

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 768px) {
  .login-wrapper { grid-template-columns: 1fr; }
  .login-visual { display: none; }
  .navbar { padding: 1rem 1.25rem; }
  .hero { padding: 3rem 1.25rem 2rem; }
  .main-content { padding: 2rem 1.25rem; }
}