/* ═══════════════════════════════════════════════════════════════════════
   PraveenOrderflow — Dark Trading Terminal Theme
   ═══════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ─── CSS Custom Properties ─────────────────────────────────────────── */
:root {
  --bg-primary: #060a13;
  --bg-secondary: #0d1321;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --bg-input: #0f172a;
  --border-default: #1e293b;
  --border-glow: #00e5ff33;

  --accent-cyan: #00e5ff;
  --accent-green: #00ff88;
  --accent-blue: #3b82f6;
  --accent-purple: #a855f7;
  --accent-red: #ef4444;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --glow-cyan: 0 0 20px #00e5ff33, 0 0 40px #00e5ff11;
  --glow-green: 0 0 20px #00ff8833, 0 0 40px #00ff8811;

  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: var(--accent-cyan); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-green); }

/* ─── Animated Background Grid ──────────────────────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

.bg-gradient-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0, 229, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(0, 255, 136, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

/* ─── Container ─────────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ─── Header ────────────────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(6, 10, 19, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-default);
  transition: var(--transition);
}

.header.scrolled {
  padding: 10px 0;
  background: rgba(6, 10, 19, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--border-glow);
  box-shadow: var(--glow-cyan);
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

/* ─── Hero Section ──────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 50px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-green) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  border: none;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  color: #000;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  animation: fadeInUp 0.8s ease-out 0.3s both;
  position: relative;
  overflow: hidden;
}

.hero-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
  opacity: 0;
  transition: var(--transition);
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(0, 229, 255, 0.3);
}

.hero-cta:hover::before { opacity: 1; }

.hero-cta span { position: relative; z-index: 1; display: flex; align-items: center; gap: 10px; }

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 64px;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* ─── Section Title ─────────────────────────────────────────────────── */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-title p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ─── Features Section ──────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 229, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), var(--glow-cyan);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ─── How It Works ──────────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-green), transparent);
  opacity: 0.3;
}

.step-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.step-card:hover {
  border-color: rgba(0, 229, 255, 0.2);
  transform: translateY(-4px);
}

.step-number {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: #000;
  position: relative;
  z-index: 1;
}

.step-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ─── Download Form Section ─────────────────────────────────────────── */
#download {
  padding: 100px 0;
}

.form-wrapper {
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

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

.form-wrapper h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-align: center;
}

.form-wrapper .form-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group label .required {
  color: var(--accent-red);
}

.form-input,
.form-select {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2364748b' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-error {
  color: var(--accent-red);
  font-size: 0.8rem;
  margin-top: 6px;
  display: none;
}

.form-group.error .form-input,
.form-group.error .form-select {
  border-color: var(--accent-red);
}

.form-group.error .form-error {
  display: block;
}

.submit-btn {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  color: #000;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
  position: relative;
  overflow: hidden;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.3);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.submit-btn .spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 0, 0, 0.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

.submit-btn.loading .btn-text { display: none; }
.submit-btn.loading .spinner { display: block; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Success State ─────────────────────────────────────────────────── */
.success-state {
  display: none;
  text-align: center;
  padding: 48px;
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

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

.success-state.visible {
  display: block;
  animation: fadeInUp 0.5s ease-out;
}

.success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: rgba(0, 255, 136, 0.1);
  border: 2px solid var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.success-state h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--accent-green);
}

.success-state p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.license-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 24px;
  position: relative;
}

.license-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.license-key {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  word-break: break-all;
  line-height: 1.6;
  user-select: all;
}

.copy-btn {
  padding: 12px 28px;
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius);
  background: rgba(0, 229, 255, 0.08);
  color: var(--accent-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-right: 12px;
}

.copy-btn:hover {
  background: rgba(0, 229, 255, 0.15);
  box-shadow: var(--glow-cyan);
}

.copy-btn.copied {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.1);
}

.github-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  color: #000;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.github-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.3);
  color: #000;
}

.success-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─── Footer ────────────────────────────────────────────────────────── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-default);
  text-align: center;
  position: relative;
  z-index: 1;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer .footer-brand {
  color: var(--accent-cyan);
  font-weight: 600;
}

/* ─── Animations ────────────────────────────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }

  .hero { padding: 100px 20px 60px; }
  .hero h1 { font-size: 2.2rem; }

  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .stat-value { font-size: 1.5rem; }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .steps-grid::before { display: none; }

  .features-grid { grid-template-columns: 1fr; }

  .form-wrapper { padding: 32px 24px; }

  .success-state { padding: 32px 24px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 1rem; }
  .hero-cta { padding: 14px 32px; font-size: 0.95rem; }
}

/* ─── Admin Page Specific ───────────────────────────────────────────── */
.admin-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.admin-card {
  width: 100%;
  max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

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

.admin-card h1 {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
}

.admin-card .admin-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 0.9rem;
}

.pin-input {
  text-align: center;
  font-size: 2rem;
  letter-spacing: 0.5em;
  font-family: var(--font-mono);
  font-weight: 700;
}

.hidden { display: none !important; }