/* ── Custom Properties ── */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-terminal: #0d1117;
  --bg-card: #161616;
  --text-primary: #e5e5e5;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;
  --green: #22c55e;
  --green-dim: #16a34a;
  --green-glow: rgba(34, 197, 94, 0.15);
  --red: #ef4444;
  --yellow: #eab308;
  --border: #262626;
}

/* ── Base ── */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

::selection {
  background-color: var(--green);
  color: var(--bg-primary);
}

/* ── Terminal Window ── */
.terminal {
  background-color: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background-color: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot--red { background-color: #ff5f57; }
.terminal-dot--yellow { background-color: #febc2e; }
.terminal-dot--green { background-color: #28c840; }

.terminal-body {
  padding: 1.25rem;
  min-height: 160px;
  font-size: 0.9rem;
  line-height: 1.7;
}

.terminal-body code {
  font-family: 'JetBrains Mono', monospace;
}

/* ── Typing Cursor ── */
.cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.15em;
  background-color: var(--green);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ── Spinner ── */
.spinner {
  display: inline-block;
  animation: spin-chars 0.8s steps(4) infinite;
}

@keyframes spin-chars {
  0%   { content: '⠋'; }
  25%  { content: '⠙'; }
  50%  { content: '⠹'; }
  75%  { content: '⠸'; }
}

/* ── Card Hover ── */
.card-hover {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-hover:hover {
  border-color: var(--green);
  box-shadow: 0 0 20px var(--green-glow);
}

/* ── CTA Button ── */
.btn-primary {
  background-color: var(--green);
  color: var(--bg-primary);
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-primary:hover {
  background-color: var(--green-dim);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Email Input ── */
.email-input {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.email-input:focus {
  border-color: var(--green);
}

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

/* ── Comparison Table ── */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 0.75rem 1rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.comparison-table th {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comparison-table td:first-child,
.comparison-table th:first-child {
  text-align: left;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table .highlight-col {
  background-color: rgba(34, 197, 94, 0.05);
}

/* ── Section Spacing ── */
.section {
  padding: 6rem 1.5rem;
}

@media (min-width: 768px) {
  .section {
    padding: 8rem 2rem;
  }
}

/* ── Fade In Animation ── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Success State ── */
.success-msg {
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Responsive Terminal ── */
@media (max-width: 640px) {
  .terminal-body {
    font-size: 0.8rem;
    padding: 1rem;
    min-height: 140px;
  }
}

/* ── SKU Cards ── */
.sku-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 2rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sku-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 30px var(--green-glow);
}

.sku-card.featured {
  border-color: var(--green);
  position: relative;
}

.sku-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--green);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Trust Icons ── */
.trust-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background-color: rgba(34, 197, 94, 0.1);
  color: var(--green);
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* ── Steps ── */
.step-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--green);
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* ── Device Hero Image ── */
.device-hero {
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ── Scroll Separator ── */
.section-divider {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
  margin: 0;
}