@font-face {
  font-family: "Space Grotesk";
  src: url("fonts/SpaceGrotesk-Variable.ttf") format("truetype");
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
}

@font-face {
  font-family: "Fraunces";
  src: url("fonts/Fraunces-Variable.ttf") format("truetype");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --bg-1: #0d1a1d;
  --bg-2: #15362f;
  --ink: #f4f0e8;
  --muted: #b4c0b2;
  --accent-1: #ff9a3c;
  --accent-2: #ffd166;
  --card: rgba(255, 255, 255, 0.08);
  --stroke: rgba(255, 255, 255, 0.18);
  --shadow: rgba(4, 8, 10, 0.45);
}

/* Highlight for interview-preparation keywords */
.highlight-keyword {
  color: var(--accent-2);
  font-weight: 600;
  background: linear-gradient(90deg, rgba(255, 209, 102, 0.15), rgba(255, 154, 60, 0.1));
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 1.05em;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 600px at 10% 20%, #214842, transparent),
    radial-gradient(900px 500px at 90% 10%, #34261d, transparent),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
  min-height: 100vh;
}

.ambient {
  position: fixed;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 154, 60, 0.08), transparent 60%);
  pointer-events: none;
  mix-blend-mode: screen;
}

.hero {
  padding: 48px 7vw 32px;
  position: relative;
  z-index: 1;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 48px;
}

.brand {
  font-family: "Fraunces", serif;
  font-size: 1.4rem;
  letter-spacing: 0.5px;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--stroke);
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 24px -18px var(--shadow);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.nav-link:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
}

.hero-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.hero-copy h1 {
  font-family: "Fraunces", serif;
  font-size: clamp(2.4rem, 3vw, 3.4rem);
  margin: 12px 0 16px;
}

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

.lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 540px;
}

.hero-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  color: var(--ink);
}

.hero-feature span {
  color: #81c784;
  font-size: 1.1rem;
}

.cta-row {
  display: flex;
  gap: 16px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta.primary {
  color: #1a1308;
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  box-shadow: 0 12px 24px -12px rgba(255, 154, 60, 0.8);
}

.cta.ghost {
  color: var(--ink);
  border: 1px solid var(--stroke);
}

.cta:hover {
  transform: translateY(-2px);
}

.meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-card {
  background: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
  border: 3px solid #333;
  border-radius: 32px;
  padding: 12px;
  box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  animation: floatIn 0.8s ease forwards;
  max-width: 340px;
  width: 100%;
  position: relative;
}

/* Smartphone notch */
.hero-card::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: #333;
  border-radius: 2px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  margin-top: 8px;
  padding: 0 4px;
}

.pill {
  background: rgba(255, 209, 102, 0.2);
  color: var(--accent-2);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pulse {
  width: 6px;
  height: 6px;
  background: var(--accent-1);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-1);
  animation: pulse 1.5s ease infinite;
}

.chat-line {
  background: rgba(13, 26, 29, 0.6);
  padding: 10px 14px;
  border-radius: 12px;
  margin-bottom: 10px;
  font-family: "Space Grotesk", sans-serif;
}

.chat-line.muted {
  opacity: 0.5;
}

/* Chat Animation Styles */
.chat-animation {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 320px;
  overflow-y: scroll;
  padding: 8px 6px;
  background: rgba(13, 26, 29, 0.6);
  border-radius: 16px;
  pointer-events: none;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Hide scrollbar - animation only, not for user interaction */
.chat-animation::-webkit-scrollbar {
  display: none;
}

.chat-message {
  padding: 6px 10px;
  border-radius: 10px;
  font-family: "Space Grotesk", sans-serif;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-width: 85%;
  opacity: 0;
  transform: translateY(10px);
}

.chat-message.user-message {
  background: rgba(255, 154, 60, 0.2);
  border: 1px solid rgba(255, 154, 60, 0.4);
  align-self: flex-end;
}

.chat-message.bot-message {
  background: rgba(13, 26, 29, 0.8);
  border: 1px solid var(--stroke);
  align-self: flex-start;
}

.chat-sender {
  font-size: 0.55rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.user-message .chat-sender {
  color: var(--accent-1);
}

.bot-message .chat-sender {
  color: var(--accent-2);
}

.chat-text {
  font-size: 0.75rem;
  color: var(--ink);
  line-height: 1.3;
}

.steps {
  padding: 56px 7vw 64px;
  position: relative;
  z-index: 1;
  text-align: center;
}

.steps h2 {
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  margin-bottom: 12px;
}

.steps-subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 36px;
}

.step-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  background: rgba(10, 20, 22, 0.6);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 28px 24px;
  animation: rise 0.6s ease forwards;
  text-align: center;
  position: relative;
}

.step-number {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  color: #1a1308;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.step h3 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.step p {
  color: var(--muted);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Demo Section */
.demo-section {
  padding: 56px 7vw 64px;
  position: relative;
  z-index: 1;
  text-align: center;
}

.demo-section h2 {
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  margin-bottom: 12px;
}

.demo-subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.demo-container {
  display: flex;
  justify-content: center;
}

.demo-card {
  max-width: 520px;
}

.chat-animation-qa {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 400px;
  overflow-y: scroll;
  padding: 12px 10px;
  background: rgba(13, 26, 29, 0.6);
  border-radius: 16px;
  pointer-events: none;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.chat-animation-qa::-webkit-scrollbar {
  display: none;
}

.chat-animation-qa .chat-message {
  padding: 10px 14px;
  max-width: 92%;
}

.chat-animation-qa .chat-text {
  font-size: 0.82rem;
  line-height: 1.5;
}

/* Learning Section */
.learning-section {
  padding: 56px 7vw 48px;
  position: relative;
  z-index: 1;
  text-align: center;
}

.learning-section h2 {
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  margin-bottom: 12px;
}

.learning-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  max-width: 900px;
  margin: 0 auto;
}

.learning-card {
  background: rgba(10, 20, 22, 0.6);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 24px 20px;
  text-align: center;
}

.learning-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 12px;
}

.learning-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.learning-card p {
  color: var(--muted);
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.learning-time {
  display: inline-block;
  background: rgba(255, 154, 60, 0.15);
  color: var(--accent-1);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* AI Quality Section */
.quality-section {
  padding: 56px 7vw 64px;
  position: relative;
  z-index: 1;
}

.quality-content {
  max-width: 800px;
  margin: 0 auto;
}

.quality-section h2 {
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  margin-bottom: 12px;
  text-align: center;
}

.quality-lead {
  color: var(--muted);
  font-size: 1.1rem;
  text-align: center;
  margin-bottom: 36px;
}

.quality-features {
  display: grid;
  gap: 20px;
}

.quality-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: rgba(10, 20, 22, 0.6);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 20px;
}

.quality-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.quality-feature h4 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: var(--ink);
}

.quality-feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Demo Card Wide */
.demo-card-wide {
  max-width: 520px;
}

.chat-static {
  padding: 12px 10px;
  background: rgba(13, 26, 29, 0.6);
  border-radius: 16px;
}

.chat-static .chat-message {
  opacity: 1;
  transform: none;
}

.topic-badge {
  background: rgba(255, 209, 102, 0.15);
  color: var(--accent-2);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
  margin-bottom: 12px;
  display: inline-block;
}

.answer-buttons {
  display: flex;
  gap: 8px;
  margin: 12px 0;
  flex-wrap: wrap;
}

.answer-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--stroke);
  color: var(--ink);
  padding: 8px 16px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.answer-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.answer-btn.active {
  background: rgba(255, 154, 60, 0.2);
  border-color: var(--accent-1);
  color: var(--accent-1);
}

.audio-player-container {
  margin: 12px 0;
  padding: 12px;
  background: rgba(10, 20, 22, 0.8);
  border: 1px solid var(--stroke);
  border-radius: 12px;
}

.audio-player-container audio {
  width: 100%;
  height: 40px;
}

.answer-content,
.lecture-content {
  margin-top: 8px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

.reply-hint {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(76, 175, 80, 0.1);
  border: 1px solid rgba(76, 175, 80, 0.3);
  border-radius: 10px;
  font-size: 0.85rem;
  color: #81c784;
}

.cta-banner {
  padding: 40px 7vw 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

/* Messenger Selector */
.messenger-selector {
  margin: 24px 0 8px;
}

.messenger-label {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.messenger-options {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.messenger-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: var(--card);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.messenger-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.messenger-btn.active {
  border-color: var(--accent-1);
  background: rgba(255, 154, 60, 0.15);
  box-shadow: 0 0 12px rgba(255, 154, 60, 0.3);
}

.messenger-btn svg {
  flex-shrink: 0;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 26, 29, 0.95);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: linear-gradient(145deg, #1a2e2f, #0d1a1d);
  border: 1px solid var(--stroke);
  border-radius: 24px;
  padding: 40px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.6);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--stroke);
  background: transparent;
  color: var(--ink);
  font-size: 1.5rem;
  cursor: pointer;
  transition: background 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
}

.modal-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.modal-content h3 {
  font-family: "Fraunces", serif;
  font-size: 1.8rem;
  margin: 0 0 12px;
  color: var(--accent-2);
}

.modal-content p {
  color: var(--muted);
  margin: 0 0 16px;
  font-size: 1.05rem;
}

.modal-subscribe {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--stroke);
}

.modal-subscribe p {
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.modal-extra-text {
  margin-top: 20px;
  font-size: 0.9rem;
  font-style: italic;
  color: var(--muted);
}

/* Email subscription form */
.email-form {
  text-align: center;
}

.email-form .form-group {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.email-form input[type="email"],
.email-form input[type="text"] {
  flex: 1;
  min-width: 200px;
  max-width: 280px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.email-form input[type="email"]::placeholder,
.email-form input[type="text"]::placeholder {
  color: var(--muted);
}

.email-form input[type="email"]:focus,
.email-form input[type="text"]:focus {
  border-color: var(--accent-1);
  background: rgba(255, 255, 255, 0.12);
}

.email-form .consent-row {
  margin: 12px auto 0;
  max-width: 520px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  text-align: left;
}

.email-form .consent-row input[type="checkbox"] {
  margin-top: 2px;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  accent-color: var(--accent-2);
}

.email-form .consent-row label {
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--muted);
}

.email-form .consent-row a {
  color: var(--accent-2);
}

.email-form .consent-row a:hover {
  color: var(--accent-1);
}

.email-form button[type="submit"] {
  border: none;
  cursor: pointer;
}

.form-message {
  margin-top: 12px;
  font-size: 0.9rem;
  padding: 8px 16px;
  border-radius: 8px;
}

.form-message.success {
  background: rgba(76, 175, 80, 0.2);
  color: #81c784;
}

.form-message.error {
  background: rgba(244, 67, 54, 0.2);
  color: #e57373;
}

.cookie-banner {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  background: rgba(10, 20, 22, 0.95);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 20px 40px -18px rgba(0, 0, 0, 0.7);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  z-index: 1200;
}

.cookie-banner.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cookie-banner p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.cookie-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.cookie-actions button {
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  transition: transform 0.2s ease, background 0.2s ease;
}

.cookie-actions button.primary {
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  color: #1a1308;
  border: none;
}

.cookie-actions button:hover {
  transform: translateY(-1px);
}

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .nav-actions {
    width: 100%;
  }

  .cta-banner {
    align-items: flex-start;
  }

  .cookie-banner {
    left: 16px;
    right: 16px;
    bottom: 16px;
    flex-direction: column;
    align-items: flex-start;
  }
}