/* ==============================================
   AX Class Coming Soon Page Styles
   ============================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Primary Brand Colors */
  --primary-orange: #ff5e62;
  --primary-pink: #ff6b9d;
  --primary-coral: #ff9966;

  /* Background - Darker Theme */
  --bg-dark: #1a1a2e;
  --bg-section-light: #fff5f7;
  --bg-section-warm: #fff0f3;
  --bg-gradient-start: #ff9966;
  --bg-gradient-mid: #ff5e62;
  --bg-gradient-end: #ff6b9d;

  /* Text Colors */
  --text-main: #1f2933;
  --text-sub: #4b5563;
  --text-muted: #9ca3af;
  --text-white: #ffffff;

  /* Border / Divider */
  --border-soft: #ffd4d8;
  --border-strong: #ff5e62;

  /* Accent for badges, highlights */
  --accent-chip-bg: #ffe8ec;
  --accent-chip-text: #d91e36;

  /* Utility */
  --white: #ffffff;
}

/* ==============================================
   Reset & Base Styles
   ============================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo",
               "Noto Sans KR", "Malgun Gothic", sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-section-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
}

/* ==============================================
   Layout & Container
   ============================================== */
.page-wrapper {
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

/* ==============================================
   Typography
   ============================================== */
h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 1rem;
}

/* ==============================================
   Buttons
   ============================================== */
.btn-primary {
  background: linear-gradient(90deg, var(--primary-orange), var(--primary-pink));
  color: var(--white);
  border-radius: 999px;
  padding: 0.875rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
  display: inline-block;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-kakao {
  font-size: 1.25rem;
  padding: 1rem 2.5rem;
  background: var(--white);
  color: #ff5e62;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.5);
  font-weight: 700;
}

.btn-kakao:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.hero-cta,
.cta-buttons {
  margin-top: 3rem;
  text-align: center;
}

/* ==============================================
   Badges / Tags
   ============================================== */
.tag-pill {
  display: inline-block;
  background: var(--accent-chip-bg);
  color: var(--accent-chip-text);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin: 0;
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0;
  justify-content: center;
}

/* ==============================================
   Hero Section
   ============================================== */
.hero-section {
  background: linear-gradient(135deg, #ff9966 0%, #ff5e62 50%, #ff6b9d 100%);
  padding: 6rem 0 8rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-section h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-description {
  max-width: 700px;
  margin: 2rem auto;
  font-size: 1.25rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.hero-section .tag-pill {
  background: rgba(255, 255, 255, 0.25);
  color: var(--white);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Email Form */
.hero-form {
  max-width: 600px;
  margin: 3rem auto 0;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.email-input {
  flex: 1;
  min-width: 280px;
  padding: 1rem 1.5rem;
  border: 2px solid var(--border-soft);
  border-radius: 999px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s ease;
  background: var(--white);
}

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

.form-note {
  width: 100%;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.hero-section .form-note {
  color: rgba(255, 255, 255, 0.85);
}

.email-message {
  width: 100%;
  text-align: center;
  margin-top: 1rem;
  padding: 1rem;
  background: var(--accent-chip-bg);
  color: var(--accent-chip-text);
  border-radius: 12px;
  font-weight: 500;
  display: none;
}

.email-message.visible {
  display: block;
}

/* ==============================================
   Content Sections
   ============================================== */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  color: var(--text-main);
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.25rem;
}

/* Overview Section */
.overview-section {
  background: var(--white);
  border-top: 4px solid var(--primary-orange);
}

.overview-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

/* Target Users Section */
.target-section {
  background: linear-gradient(135deg, #bae6fd 0%, #7dd3fc 50%, #fde047 100%);
}

.target-section .section-header h2 {
  color: #0c4a6e;
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.target-card {
  background: rgba(255, 255, 255, 0.95);
  padding: 2.5rem;
  border-radius: 16px;
  border: 2px solid rgba(14, 165, 233, 0.3);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.target-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.25);
  border-color: rgba(14, 165, 233, 0.5);
}

.target-card h3 {
  color: #0284c7;
  margin-bottom: 1rem;
}

.target-card ul {
  list-style: none;
  padding: 0;
}

.target-card li {
  color: var(--text-sub);
  padding: 0.75rem 0;
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.6;
}

.target-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #0891b2;
  font-weight: bold;
}

/* Value Proposition Section */
.value-section {
  background: var(--white);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.value-card {
  background: linear-gradient(135deg, rgba(255, 158, 102, 0.15) 0%, rgba(255, 107, 157, 0.15) 100%);
  padding: 2.5rem;
  border-radius: 16px;
  border: 2px solid var(--border-soft);
  box-shadow: 0 4px 12px rgba(255, 94, 98, 0.1);
}

.value-card h3 {
  color: var(--primary-orange);
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.value-card h4 {
  color: var(--text-main);
  font-size: 1.25rem;
  margin: 1.5rem 0 1rem;
}

/* Curriculum Section */
.curriculum-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--bg-section-light) 100%);
}

.curriculum-list {
  max-width: 900px;
  margin: 3rem auto;
  display: grid;
  gap: 1.5rem;
}

.curriculum-item {
  background: var(--white);
  padding: 1.75rem 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--primary-orange);
  box-shadow: 0 4px 12px rgba(255, 94, 98, 0.08);
  font-size: 1.125rem;
  color: var(--text-sub);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.curriculum-item:hover {
  transform: translateX(8px);
  box-shadow: 0 6px 16px rgba(255, 94, 98, 0.15);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
  text-align: center;
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
  pointer-events: none;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 2rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.cta-form {
  max-width: 600px;
  margin: 3rem auto;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.contact-info {
  margin-top: 3rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.contact-info p {
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.contact-email {
  color: var(--primary-orange);
  font-weight: 600;
  text-decoration: none;
}

.contact-email:hover {
  text-decoration: underline;
}

/* ==============================================
   Footer
   ============================================== */
.footer {
  background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
  color: var(--white);
  padding: 3rem 0;
  text-align: center;
  border-top: 3px solid var(--primary-orange);
}

.footer p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}

.footer-social {
  margin-top: 1.5rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
}

/* ==============================================
   Responsive Design
   ============================================== */
@media (max-width: 768px) {
  section {
    padding: 3rem 0;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }

  .hero-form,
  .cta-form {
    flex-direction: column;
  }

  .email-input {
    width: 100%;
  }

  .target-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .target-card,
  .value-card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  p {
    font-size: 1rem;
  }

  .container {
    padding: 0 1rem;
  }

  .btn-primary {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
}