/**
 * ===================================================================
 * DATATRENDS HUB — UNIFIED DESIGN SYSTEM (style.css)
 * ===================================================================
 * Dark Slate Fintech & EdTech UI System
 * Aesthetic: #070b14, glassmorphism, glowing accents, Outfit & Inter fonts.
 * ===================================================================
 */

:root {
  --bg-main: #070b14;
  --bg-card: #0d1527;
  --bg-card2: #111c34;
  --bg-card-hover: #162444;
  --bg-input: #0a1020;
  
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.14);
  --border-focus: #38bdf8;

  --accent-cyan: #06b6d4;
  --accent-blue: #38bdf8;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --profit: #10b981;
  --loss: #ef4444;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-head: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px rgba(56, 189, 248, 0.15);
}

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

body {
  background: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-body);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
}

/* Background Ambient Lighting */
.ambient-glow {
  position: fixed;
  top: -10vw;
  left: 50%;
  transform: translateX(-50%);
  width: 90vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, rgba(139, 92, 246, 0.06) 45%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-bottom {
  position: fixed;
  bottom: -15vw;
  right: -10vw;
  width: 60vw;
  height: 35vw;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* Navigation Header */
.portal-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.brand-text {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-text .highlight {
  background: linear-gradient(135deg, var(--accent-cyan), #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* User Pill & Dropdown */
.user-profile-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
}

.user-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  font-weight: 800;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-name-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
}

/* Hero Section */
.hero-section {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem 2.5rem;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: #7dd3fc;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-head);
  font-size: 3.2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-title .gradient {
  background: linear-gradient(135deg, var(--accent-cyan), #a855f7, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  max-width: 720px;
  margin: 0 auto 2.5rem;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Auth Container */
.auth-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  max-width: 1050px;
  margin: 0 auto;
  align-items: start;
}

@media (max-width: 850px) {
  .auth-grid {
    grid-template-columns: 1fr;
  }
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 2.2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
}

.auth-header {
  margin-bottom: 1.75rem;
}

.auth-header h2 {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
}

.auth-header p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* SSO Buttons */
.btn-sso {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 0.85rem;
  border: 1px solid var(--border);
}

.btn-google {
  background: #ffffff;
  color: #1f2937;
}

.btn-google:hover {
  background: #f1f5f9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}

.btn-microsoft {
  background: #1e293b;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-microsoft:hover {
  background: #27354f;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.sso-icon {
  width: 20px;
  height: 20px;
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 1.5rem 0;
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.divider::before, .divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border);
}

.divider span {
  padding: 0 0.8rem;
}

/* Form Inputs */
.form-group {
  margin-bottom: 1.1rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: all 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.btn-primary {
  width: 100%;
  padding: 0.85rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border: none;
  border-radius: 10px;
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.25);
  transition: all 0.2s;
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 25px rgba(6, 182, 212, 0.35);
}

.btn-demo {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.6rem;
  transition: all 0.2s;
}

.btn-demo:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

/* Feature Showcase Cards on Login Page */
.showcase-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.showcase-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1.4rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  text-align: left;
  transition: all 0.2s;
}

.showcase-item:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  background: var(--bg-card-hover);
}

.showcase-icon {
  font-size: 1.8rem;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.showcase-content h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.2rem;
}

.showcase-content p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ===================================================================
 * LAUNCHPAD STYLES (Student Dashboard)
 * =================================================================== */

.dashboard-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  position: relative;
  z-index: 1;
}

.welcome-banner {
  background: linear-gradient(135deg, rgba(13, 21, 39, 0.9), rgba(17, 28, 52, 0.9));
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 2.2rem 2.5rem;
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.welcome-banner::after {
  content: '';
  position: absolute;
  right: -50px;
  top: -50px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.welcome-text h1 {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

.welcome-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.35rem;
}

.enrolled-classes-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.class-pill-badge {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #c084fc;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-join-class {
  background: rgba(255, 255, 255, 0.06);
  border: 1px dashed var(--border-light);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-join-class:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}

/* Section Title */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
}

/* App Grid */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.75rem;
  margin-bottom: 3rem;
}

@media (max-width: 640px) {
  .apps-grid {
    grid-template-columns: 1fr;
  }
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.app-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.app-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.app-badge-tag {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
}

.app-title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.35rem;
}

.app-tagline {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 0.8rem;
}

.app-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.app-live-status-pill {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  margin-bottom: 1.25rem;
}

.app-live-status-pill .status-lbl {
  color: var(--text-dim);
}

.app-live-status-pill .status-val {
  font-weight: 700;
  font-family: var(--font-mono);
  color: #fff;
}

.app-btn-launch {
  width: 100%;
  padding: 0.85rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  border: none;
  border-radius: 12px;
  color: #030712;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
}

.app-btn-launch:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  max-width: 480px;
  width: 100%;
  padding: 2.2rem;
  box-shadow: var(--shadow-lg);
  animation: modalFadeIn 0.25s ease both;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.modal-header h3 {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.4rem;
  cursor: pointer;
}

.modal-close-btn:hover {
  color: #fff;
}

/* Footer */
.portal-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 4rem;
  position: relative;
  z-index: 1;
}

.portal-footer a {
  color: var(--accent-cyan);
  text-decoration: none;
}