@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  --bg-0: #0a0b12;
  --bg-1: #121428;
  --bg-2: #1a213a;
  --accent-1: #ff8c42;
  --accent-2: #ffce5c;
  --accent-3: #2dd4bf;
  --text-0: #f8f4ff;
  --text-1: #c9c6d6;
  --text-2: #8a8ea3;
  --card: #171b2e;
  --card-2: #101326;
  --stroke: #2a2f4a;
  --shadow: 0 24px 60px rgba(9, 11, 24, 0.55);
  --gradient-start: #1a2240;
  --gradient-end: #0a0b12;
  --header-bg: rgba(10, 11, 18, 0.85);
  --header-border: rgba(42, 47, 74, 0.5);
  --code-text-color: #d6f5ff;
  --code-bg: rgba(12, 15, 32, 0.7);
  --code-border: rgba(47, 55, 86, 0.6);
  --typing-input-bg: rgba(8, 10, 22, 0.9);
  --typing-input-border: rgba(47, 55, 86, 0.8);
  --typing-input-caret: var(--accent-2);
  --typing-visual-correct: var(--text-0);
  --typing-visual-wrong: #ff6b6b;
  --typing-visual-pending: rgba(255, 255, 255, 0.35);
  --featured-card-bg: linear-gradient(160deg, #2a213b, #171b2e);
  --featured-card-border: rgba(255, 140, 66, 0.6);
}

[data-theme='light'] {
  --bg-0: #ffffff;
  --bg-1: #f0f2f5;
  --bg-2: #e0e2e5;
  --accent-1: #2563eb;
  --accent-2: #3b82f6;
  --accent-3: #10b981;
  --text-0: #1f2937;
  --text-1: #4b5563;
  --text-2: #6b7280;
  --card: #ffffff;
  --card-2: #f9fafb;
  --stroke: #d1d5db;
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --gradient-start: #dbeafe;
  --gradient-end: #ffffff;
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-border: rgba(209, 213, 219, 0.5);
  --code-text-color: #1a202c;
  --code-bg: rgba(240, 242, 245, 0.7);
  --code-border: rgba(209, 213, 219, 0.6);
  --typing-input-bg: #ffffff;
  --typing-input-border: #d1d5db;
  --typing-input-caret: var(--accent-1);
  --typing-visual-correct: var(--text-0);
  --typing-visual-wrong: #ef4444;
  --typing-visual-pending: #9ca3af;
  --featured-card-bg: linear-gradient(160deg, var(--accent-2), var(--accent-1));
  --featured-card-border: var(--accent-1);
}

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

body {
  font-family: "Space Grotesk", system-ui, sans-serif;
  background: radial-gradient(circle at 20% 20%, var(--gradient-start) 0%, var(--gradient-end) 50%, var(--gradient-end) 100%);
  color: var(--text-0);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

:root {
  --gradient-start: #1a2240;
  --gradient-end: #0a0b12;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 6vw;
  position: sticky;
  top: 0;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--header-border);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #1a1008;
  font-weight: 700;
}

.brand-text {
  font-size: 1.1rem;
  letter-spacing: 0.6px;
}

.nav {
  display: flex;
  gap: 24px;
  color: var(--text-1);
}

.nav a:hover {
  color: var(--text-0);
}

.btn {
  border-radius: 999px;
  padding: 10px 22px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(8, 10, 20, 0.4);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #1a1008;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-0);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--stroke);
  color: var(--text-0);
}

.btn-icon {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-0);
  border: 1px solid rgba(255, 255, 255, 0.15);
  width: 44px;
  height: 44px;
  padding: 0;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.hidden {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  padding: 72px 6vw 48px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  color: var(--accent-3);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.1;
  margin-bottom: 18px;
}

.accent {
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  color: transparent;
}

.subtext {
  color: var(--text-1);
  max-width: 520px;
  margin-bottom: 28px;
}

.hero-hint {
  margin-top: 12px;
  color: var(--text-2);
  font-size: 0.9rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.stats {
  display: flex;
  gap: 28px;
  margin-top: 28px;
  color: var(--text-2);
}

.stat-value {
  font-weight: 700;
  color: var(--text-0);
  font-size: 1.2rem;
  display: block;
}

.hero-right {
  position: relative;
}

.device {
  background: linear-gradient(180deg, var(--card), var(--card-2));
  border: 1px solid var(--stroke);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.device-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--stroke);
  color: var(--text-2);
  font-size: 0.85rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.device-title {
  margin-left: 8px;
}

.device-body {
  padding: 22px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

.code-meta {
  display: flex;
  justify-content: space-between;
  color: var(--text-2);
  font-size: 0.8rem;
  margin-bottom: 16px;
}

.kbd {
  border: 1px solid var(--stroke);
  padding: 2px 8px;
  border-radius: 6px;
}

.code-block {
  color: var(--code-text-color);
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 16px;
  border-radius: 16px;
  min-height: 160px;
  white-space: pre-wrap;
}

.typing-line {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
  color: var(--text-1);
  font-size: 0.9rem;
}

.prompt {
  color: var(--accent-3);
}

.ghost {
  opacity: 0.7;
}

.caret {
  width: 10px;
  height: 18px;
  background: var(--accent-2);
  border-radius: 4px;
  animation: blink 1s steps(2, start) infinite;
}

.floating-cards {
  position: absolute;
  right: -18px;
  top: 30px;
  display: grid;
  gap: 12px;
}

.float-card {
  background: rgba(20, 24, 44, 0.85);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-1);
  backdrop-filter: blur(8px);
}

.modes,
.practice,
.pricing {
  padding: 72px 6vw;
}

.modes h2,
.practice h2,
.pricing h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.section-subtext {
  color: var(--text-2);
  margin-bottom: 32px;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.mode-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 20px;
  padding: 22px;
  min-height: 160px;
}

.practice-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 32px;
}

.chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--stroke);
  color: var(--text-1);
  border-radius: 999px;
  padding: 8px 18px;
  cursor: pointer;
}

.chip.active {
  background: rgba(255, 140, 66, 0.2);
  border-color: rgba(255, 140, 66, 0.6);
  color: var(--text-0);
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.practice-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 22px;
  padding: 22px;
}

.practice-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.badge {
  background: rgba(45, 212, 191, 0.2);
  color: var(--accent-3);
  border: 1px solid rgba(45, 212, 191, 0.4);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
}

.practice-code {
  background: var(--code-bg);
  border-radius: 16px;
  border: 1px solid var(--code-border);
  padding: 16px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  min-height: 180px;
  white-space: pre-wrap;
  color: var(--code-text-color);
}

.practice-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  color: var(--text-2);
}

.typing-panel {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.typing-label {
  font-size: 0.85rem;
  color: var(--text-2);
}

.typing-help {
  font-size: 0.78rem;
  color: var(--text-2);
  opacity: 0.8;
}

.typing-input {
  width: 100%;
  background: transparent;
  border: none;
  border-radius: 14px;
  padding: 14px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  color: transparent;
  -webkit-text-fill-color: transparent;
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
  position: relative;
  z-index: 2;
  caret-color: var(--typing-input-caret);
}

.typing-input:focus {
  outline: none;
}

.typing-input-wrap {
  position: relative;
  background: var(--typing-input-bg);
  border: 1px solid var(--typing-input-border);
  border-radius: 14px;
  overflow: hidden;
}

.typing-visual {
  position: absolute;
  inset: 0;
  padding: 14px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-0);
  pointer-events: none;
  z-index: 1;
}

.typing-visual .char {
  /* Removed padding for better cursor alignment */
  border-radius: 4px;
}

.typing-visual .correct {
  color: var(--typing-visual-correct);
}

.typing-visual .wrong {
  color: var(--typing-visual-wrong);
}

.typing-visual .pending {
  color: var(--typing-visual-pending);
}

.typing-visual .space {
  opacity: 0.6;
}

.typing-visual .extra {
  color: #ff6b6b;
}

.typing-feedback {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.feedback-line {
  display: flex;
  justify-content: space-between;
  color: var(--text-1);
  font-size: 0.85rem;
}

.typing-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.metrics h3 {
  margin-bottom: 18px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  color: var(--text-1);
}

.metric-value {
  color: var(--text-0);
  font-weight: 600;
}

.progress {
  height: 10px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  margin: 18px 0;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 68%;
  background: linear-gradient(90deg, var(--accent-3), var(--accent-2));
}

.hint {
  color: var(--text-2);
  font-size: 0.85rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.price-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 22px;
  padding: 24px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.price {
  font-size: 2rem;
  font-weight: 700;
}

.price-card.featured {
  background: var(--featured-card-bg);
  border-color: var(--featured-card-border);
  box-shadow: var(--shadow);
}

.site-footer {
  padding: 36px 6vw;
  border-top: 1px solid var(--stroke);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-2);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links {
  display: flex;
  gap: 18px;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0.1; }
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    gap: 16px;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .stats {
    flex-direction: column;
    gap: 12px;
  }

  .floating-cards {
    position: static;
    margin-top: 16px;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .practice-footer {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}
.typing-input::placeholder {
  color: transparent;
}

/* Contact Form Styles */
.contact {
  padding: 72px 6vw;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 22px;
  padding: 32px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 8px;
  color: var(--text-1);
  font-size: 0.9rem;
  font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: var(--bg-1);
  color: var(--text-0);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 1rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-1);
  background: var(--bg-2);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn-primary {
  width: auto;
  align-self: flex-start;
}