/* ==========================================================================
   ALOCAL ACADEMY - PREMIUM EDITORIAL DESIGN SYSTEM
   ========================================================================== */

:root {
  --primary: #0B5740;
  --primary-light: #0D694D;
  --dark: #111827;
  --dark-light: #374151;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-100: #F3F4F6;
  --bg-alt: #F9FAFB;
  --white: #FFFFFF;
  --accent: #E2E8F0;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--dark-light);
  line-height: 1.6;
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--dark);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }

/* HEADER */
.header {
  position: fixed; top: 0; left: 0; width: 100%;
  padding: 24px 8%; background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--gray-200);
  z-index: 1000; transition: var(--transition);
}
.header.scrolled { padding: 16px 8%; box-shadow: 0 4px 20px rgba(0,0,0,0.04); }
.header-inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1280px; margin: 0 auto; width: 100%;
}
.logo-container { display: flex; align-items: center; gap: 12px; }
.logo-img { width: auto; height: 48px; object-fit: contain; }
.logo-text { font-size: 26px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }

.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 15px; font-weight: 600; color: var(--dark-light); }
.nav-link:hover { color: var(--primary); }

.btn-cta {
  background: var(--primary); color: var(--white);
  padding: 12px 24px; border-radius: 4px; font-weight: 600; font-size: 15px;
  display: inline-flex; justify-content: center; align-items: center;
  border: 1px solid var(--primary);
}
.btn-cta:hover { background: var(--primary-light); color: var(--white); }

.btn-secondary {
  background: transparent; color: var(--primary);
  padding: 12px 24px; border-radius: 4px; font-weight: 600; font-size: 15px;
  display: inline-flex; justify-content: center; align-items: center;
  border: 1px solid var(--primary);
}
.btn-secondary:hover { background: var(--primary); color: var(--white); }

.btn-hero { padding: 14px 28px; font-size: 16px; min-width: 180px; height: 52px; }

/* LAYOUT */
.section { padding: 100px 8%; }
.alt-bg { background-color: var(--bg-alt); }

.section-hdr { text-align: center; max-width: 700px; margin: 0 auto 64px; }
.section-subtitle { display: block; font-size: 13px; font-weight: 700; color: var(--gray-400); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.section-title { font-size: 36px; margin-bottom: 24px; }
.section-desc { font-size: 17px; color: var(--dark-light); }

/* HERO */
.hero { padding: 140px 8% 60px; min-height: 72vh; display: flex; align-items: center; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; max-width: 1280px; margin: 0 auto; align-items: center; width: 100%; }
.hero-tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 24px; padding-bottom: 8px; border-bottom: 2px solid var(--primary); }
.hero-title { font-size: 64px; font-weight: 800; letter-spacing: -2px; margin-bottom: 32px; color: var(--primary); }
.hero-desc { font-size: 18px; color: var(--dark-light); margin-bottom: 48px; max-width: 90%; }
.hero-actions { display: flex; gap: 16px; align-items: center; }

.hero-image-wrap { display: flex; justify-content: flex-end; }
.hero-mockup-card { background: var(--white); border: 1px solid var(--gray-200); padding: 40px; border-radius: 0; width: 100%; max-width: 440px; box-shadow: 0 20px 40px rgba(0,0,0,0.04); }
.mockup-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--gray-200); padding-bottom: 20px; margin-bottom: 24px; }
.mockup-title { font-size: 18px; }
.mockup-badge { background: var(--bg-alt); padding: 4px 10px; font-size: 12px; font-weight: 700; color: var(--dark-light); }
.mockup-desc { font-size: 15px; margin-bottom: 32px; }
.mockup-stats { display: flex; gap: 32px; }
.mockup-stat-num { font-size: 40px; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 8px; letter-spacing: -1px; }
.mockup-stat-lbl { font-size: 11px; font-weight: 700; color: var(--gray-400); text-transform: uppercase; letter-spacing: 1px; }

/* STATS BANNER */
.stats-banner { padding: 60px 8%; border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); }
.stats-container { display: flex; justify-content: space-around; max-width: 1000px; margin: 0 auto; text-align: center; }
.stat-number { font-size: 56px; font-weight: 800; color: var(--primary); line-height: 1; letter-spacing: -1px; margin-bottom: 12px; }
.stat-lbl { font-size: 14px; font-weight: 600; color: var(--dark-light); text-transform: uppercase; letter-spacing: 1px; }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; max-width: 1200px; margin: 0 auto; }
.about-img { width: 100%; border-radius: 4px; box-shadow: 0 10px 30px rgba(0,0,0,0.06); }
.about-title { font-size: 32px; color: var(--primary); margin-bottom: 32px; }
.about-desc { font-size: 17px; margin-bottom: 24px; }

/* EDITORIAL 4 COL (Principles) */
.editorial-4-col { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; max-width: 1200px; margin: 0 auto; }
.ed-col { display: flex; flex-direction: column; }
.ed-num { font-size: 48px; font-weight: 800; color: var(--gray-300); line-height: 1; margin-bottom: 16px; letter-spacing: -2px; }
.ed-line { width: 100%; height: 1px; background: var(--gray-200); margin-bottom: 24px; }
.ed-title { font-size: 16px; font-weight: 700; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.ed-desc { font-size: 15px; color: var(--dark-light); }

/* CURRICULUM */
.curriculum-container { display: grid; grid-template-columns: 350px 1fr; gap: 64px; max-width: 1200px; margin: 0 auto; }
.curr-nav { display: flex; flex-direction: column; border-top: 1px solid var(--gray-200); }
.curr-tab { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--gray-200); cursor: pointer; transition: var(--transition); align-items: flex-start; }
.curr-tab-num { font-size: 14px; font-weight: 700; color: var(--gray-400); margin-top: 2px; }
.curr-tab-vn { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 4px; transition: var(--transition); }
.curr-tab-en { font-size: 13px; color: var(--gray-400); }
.curr-tab:hover .curr-tab-vn { color: var(--primary); }
.curr-tab.active { border-bottom: 2px solid var(--primary); }
.curr-tab.active .curr-tab-num { color: var(--primary); }
.curr-tab.active .curr-tab-vn { color: var(--primary); }

.curr-panel { background: var(--white); border: 1px solid var(--gray-200); padding: 48px; min-height: 500px; }
.curr-panel-hdr { margin-bottom: 32px; border-bottom: 1px solid var(--gray-200); padding-bottom: 24px; }
.curr-panel-tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--primary); letter-spacing: 1px; margin-bottom: 16px; }
.curr-panel-title { font-size: 28px; color: var(--primary); margin-bottom: 8px; }
.curr-panel-sub { font-size: 15px; color: var(--gray-400); font-weight: 500; }
.curr-intro { font-size: 17px; font-weight: 500; color: var(--dark); margin-bottom: 40px; }

.curr-blocks { display: grid; gap: 32px; }
.curr-block h4 { font-size: 13px; color: var(--gray-400); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.curr-block p { font-size: 16px; }
.curr-list { list-style: none; padding: 0; }
.curr-list li { position: relative; padding-left: 20px; font-size: 16px; margin-bottom: 8px; }
.curr-list li::before { content: "•"; position: absolute; left: 0; color: var(--primary); font-weight: bold; }
.curr-highlight { display: inline-block; padding: 8px 16px; background: rgba(11, 87, 64, 0.05); border-left: 3px solid var(--primary); font-weight: 600; color: var(--dark); }

/* DARK STATEMENT */
.dark-statement { background: var(--primary); padding: 120px 8%; text-align: center; }
.dark-title { font-size: 40px; color: var(--white); margin-bottom: 80px; letter-spacing: -1px; }
.dark-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; max-width: 1100px; margin: 0 auto; padding-bottom: 80px; border-bottom: 1px solid rgba(255,255,255,0.2); }
.dark-num { font-size: 64px; font-weight: 800; color: var(--white); line-height: 1; letter-spacing: -2px; margin-bottom: 16px; }
.dark-lbl { font-size: 14px; font-weight: 700; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 1px; }
.dark-closing { font-size: 20px; color: var(--white); margin-top: 60px; font-weight: 500; }

/* ENROLL FORM */
.enroll-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; max-width: 1100px; margin: 0 auto; }
.enroll-left-title { font-size: 18px; text-transform: uppercase; margin-bottom: 32px; color: var(--primary); }
.enroll-list { list-style: none; display: flex; flex-direction: column; gap: 24px; }
.enroll-list li { display: flex; gap: 16px; align-items: flex-start; font-size: 16px; font-weight: 500; color: var(--dark); }
.check-icon { width: 20px; height: 20px; color: var(--primary); flex-shrink: 0; margin-top: 2px; }

.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--dark); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 14px 16px; font-size: 15px; font-family: inherit; border: 1px solid var(--gray-300); border-radius: 4px; transition: var(--transition); background: var(--white); color: var(--dark); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(11,87,64,0.1); }
.form-checkbox { display: flex; gap: 12px; align-items: flex-start; }
.form-checkbox input { margin-top: 5px; cursor: pointer; }
.form-checkbox label { font-size: 13px; color: var(--dark-light); cursor: pointer; }
.btn-submit { width: 100%; padding: 16px; font-size: 16px; margin-top: 8px; }

/* FOOTER */
.footer { border-top: 1px solid var(--gray-200); padding: 80px 8% 40px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 64px; max-width: 1200px; margin: 0 auto; padding-bottom: 60px; border-bottom: 1px solid var(--gray-200); }
.footer-desc { font-size: 15px; max-width: 280px; }
.footer-title { font-size: 13px; font-weight: 700; color: var(--gray-400); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 24px; }
.footer-nav { display: flex; flex-direction: column; gap: 16px; font-size: 15px; font-weight: 500; }
.footer-nav a:hover { color: var(--primary); }
.footer-contact { display: flex; flex-direction: column; gap: 16px; font-size: 15px; font-weight: 500; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 32px auto 0; font-size: 13px; color: var(--gray-400); }
.legal-links { display: flex; gap: 12px; align-items: center; }
.legal-links a:hover { color: var(--dark); }

/* HAMBURGER */
.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; z-index: 1001; }
.hamburger span { width: 24px; height: 2px; background-color: var(--dark); transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* RESPONSIVE */
@media(max-width: 991px) {
  .hero-grid, .about-grid, .curriculum-container, .enroll-grid { grid-template-columns: 1fr; gap: 48px; }
  .editorial-4-col, .dark-grid, .form-row-2 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero-title { font-size: 48px; }
}
@media(max-width: 768px) {
  .editorial-4-col, .dark-grid, .form-row-2, .footer-top { grid-template-columns: 1fr; }
  .stats-container { flex-direction: column; gap: 32px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions a { width: 100%; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }

  /* Section Spacing */
  .section { padding: 60px 5%; }
  .dark-statement { padding: 60px 5%; }
  .footer { padding: 60px 5% 40px; }
  .header { padding: 16px 5%; }
  .header.scrolled { padding: 12px 5%; }

  /* Navigation & Hamburger */
  .hamburger { display: flex; }
  .nav-menu {
    position: fixed; left: -100%; top: 0; width: 80%; max-width: 300px; height: 100vh;
    background: var(--white); flex-direction: column;
    padding: 100px 5% 40px; box-shadow: 20px 0 50px rgba(0,0,0,0.1);
    transition: left 0.3s ease; align-items: flex-start; z-index: 1000;
  }
  .nav-menu.active { left: 0; }
  .nav-menu a { font-size: 18px; width: 100%; }
  .btn-cta { width: 100%; text-align: center; }

  /* Typography */
  .hero { padding-top: 100px; min-height: auto; }
  .hero-title { font-size: 36px; margin-bottom: 24px; letter-spacing: -1px; }
  .hero-desc { font-size: 16px; margin-bottom: 32px; max-width: 100%; }
  .section-title { font-size: 28px; }
  .stat-number { font-size: 40px; }
  .dark-title { font-size: 28px; margin-bottom: 48px; }
  .dark-num { font-size: 48px; }

  /* Curriculum Horizontal Scroll */
  .curr-nav {
    flex-direction: row; overflow-x: auto; white-space: nowrap;
    padding-bottom: 16px; border-top: none; margin-bottom: 24px;
    scrollbar-width: none; -ms-overflow-style: none; gap: 8px;
  }
  .curr-nav::-webkit-scrollbar { display: none; }
  .curr-tab {
    padding: 12px 16px; border-bottom: none; border-radius: 8px;
    background: var(--bg-alt); align-items: center; border: 1px solid var(--gray-200);
  }
  .curr-tab.active { border-bottom: none; background: var(--primary); border-color: var(--primary); }
  .curr-tab.active .curr-tab-vn, .curr-tab.active .curr-tab-num, .curr-tab.active .curr-tab-en { color: var(--white); }
  .curr-panel { padding: 32px 24px; min-height: auto; }

  /* Tweaks */
  .hero-mockup-card { padding: 24px; }
  .mockup-stat-num { font-size: 32px; }
}