/* ============================================================
   MAIN.CSS — Global Styles & Layout
   All values sourced from variables.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');
@import 'variables.css';

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-primary);
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: var(--line-height-base);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link-color); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--link-hover); }
ul, ol { list-style: none; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--heading-color);
  line-height: var(--line-height-tight);
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 5vw, var(--font-size-5xl)); }
h2 { font-size: clamp(1.6rem, 4vw, var(--font-size-4xl)); }
h3 { font-size: clamp(1.3rem, 3vw, var(--font-size-3xl)); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }
p { margin-bottom: 1rem; color: var(--text-color); }

/* ---- Layout ---- */
.container { max-width: var(--container-width); margin: 0 auto; padding: var(--container-padding); width: 100%; }
.section { padding: var(--section-padding); }
.section-sm { padding: var(--section-padding-sm); }
.section-white { background-color: var(--section-bg); }
.section-alt { background-color: var(--section-bg-alt); }
.section-dark { background: var(--section-bg-dark); color: var(--text-on-dark); }
.section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-gradient { background: var(--section-bg-gradient); color: var(--text-on-dark); }
.section-gradient h2, .section-gradient h3 { color: #fff; }

/* Grid */
.grid { display: grid; gap: var(--gap-md); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* Flex */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--gap-sm); }
.gap-md { gap: var(--gap-md); }
.gap-lg { gap: var(--gap-lg); }

/* ---- Section Header ---- */
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--secondary-color);
  margin-bottom: 12px;
  padding: 4px 14px;
  background: rgba(232,162,26,0.1);
  border: 1px solid rgba(232,162,26,0.25);
  border-radius: var(--border-radius-pill);
}
.section-header h2 { margin-bottom: 16px; }
.section-header p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}
.section-divider {
  width: 60px; height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
  margin: 16px auto 0;
}
.section-dark .section-header p, .section-gradient .section-header p { color: var(--text-light); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: var(--button-padding);
  border-radius: var(--button-radius);
  font-size: var(--button-font-size);
  font-weight: var(--button-font-weight);
  font-family: var(--font-primary);
  cursor: pointer; border: 2px solid transparent;
  transition: var(--button-transition);
  text-decoration: none; line-height: 1; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary-color); color: #fff; border-color: var(--primary-color); }
.btn-primary:hover { background: var(--primary-light); border-color: var(--primary-light); color: #fff; box-shadow: 0 8px 24px rgba(26,58,92,0.35); }

.btn-secondary { background: var(--secondary-color); color: #fff; border-color: var(--secondary-color); }
.btn-secondary:hover { background: var(--secondary-dark); border-color: var(--secondary-dark); color: #fff; box-shadow: 0 8px 24px rgba(232,162,26,0.35); }

.btn-accent { background: var(--accent-color); color: #fff; border-color: var(--accent-color); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; box-shadow: 0 8px 24px rgba(0,181,216,0.35); }

.btn-outline { background: transparent; color: var(--primary-color); border-color: var(--primary-color); }
.btn-outline:hover { background: var(--primary-color); color: #fff; }

.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: rgba(255,255,255,0.15); border-color: #fff; color: #fff; }

.btn-sm { padding: var(--button-padding-sm); font-size: var(--font-size-sm); }
.btn-lg { padding: var(--button-padding-lg); font-size: var(--font-size-lg); }
.btn-pill { border-radius: var(--button-radius-pill); }
.btn-block { width: 100%; justify-content: center; }

/* ---- Cards ---- */
.card {
  background: var(--card-background);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover { box-shadow: var(--card-shadow-hover); transform: translateY(-4px); }

/* ---- Badges ---- */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px;
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 600; letter-spacing: 0.04em;
}
.badge-primary { background: var(--badge-bg); color: var(--badge-color); border: 1px solid var(--badge-border); }
.badge-beginner { background: var(--tag-beginner); color: var(--tag-beginner-text); }
.badge-intermediate { background: var(--tag-intermediate); color: var(--tag-intermediate-text); }
.badge-advanced { background: var(--tag-advanced); color: var(--tag-advanced-text); }
.badge-accent { background: rgba(0,181,216,0.12); color: var(--accent-dark); }
.badge-gold { background: rgba(232,162,26,0.15); color: var(--secondary-dark); }

/* ---- Forms ---- */
.form-group { margin-bottom: 20px; }
.form-label { display: block; margin-bottom: 8px; font-weight: 500; color: var(--label-color); font-size: var(--font-size-sm); }
.form-control {
  width: 100%; padding: var(--input-padding);
  border: 1px solid var(--input-border);
  border-radius: var(--input-radius);
  background: var(--input-bg); color: var(--text-color);
  font-size: var(--font-size-base); font-family: var(--font-primary);
  transition: var(--transition); outline: none;
}
.form-control:focus { border-color: var(--input-border-focus); box-shadow: var(--input-shadow-focus); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control { cursor: pointer; }

/* ---- Utilities ---- */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-accent { color: var(--accent-color); }
.text-muted { color: var(--text-muted); }
.text-white { color: #fff; }
.text-gold { color: var(--secondary-color); }
.mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; }
.w-100 { width: 100%; } .d-none { display: none; } .d-block { display: block; }
.overflow-hidden { overflow: hidden; } .position-relative { position: relative; }

/* ---- Animations ---- */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes shimmer { 0% { background-position: -200% center; } 100% { background-position: 200% center; } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: 0.1s; } .delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; } .delay-4 { transition-delay: 0.4s; }

/* ---- Preloader ---- */
#preloader {
  position: fixed; inset: 0;
  background: var(--primary-dark);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999; transition: opacity 0.4s ease;
}
#preloader.hidden { opacity: 0; pointer-events: none; }
.preloader-logo { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: #fff; }
.preloader-logo span { color: var(--secondary-color); }
.preloader-bar {
  width: 200px; height: 3px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px; margin: 16px auto 0; overflow: hidden;
}
.preloader-bar::after {
  content: ''; display: block; height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  width: 40%; border-radius: 2px;
}

/* ---- UI Utilities ---- */
.segment-list li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; line-height: 1.4; }
.segment-list li::before { content: '✓'; color: var(--secondary-color); font-weight: 700; flex-shrink: 0; margin-top: 2px; }

/* ---- Back to Top ---- */
#backToTop {
  position: fixed; bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--primary-color); color: #fff;
  border: none; border-radius: 50%;
  cursor: pointer; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(20px);
  transition: var(--transition); z-index: 500;
  box-shadow: var(--box-shadow-md);
}
#backToTop.visible { opacity: 1; transform: translateY(0); }
#backToTop:hover { background: var(--secondary-color); transform: translateY(-3px); }

/* ---- Page Header ---- */
.page-header {
  background: var(--section-bg-gradient);
  padding: 120px 0 70px;
  text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.page-header::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(0,181,216,0.12) 0%, transparent 70%),
    radial-gradient(ellipse at 80% 20%, rgba(232,162,26,0.1) 0%, transparent 60%);
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { color: #fff; margin-bottom: 14px; }
.page-header p { color: rgba(255,255,255,0.75); font-size: var(--font-size-lg); max-width: 600px; margin: 0 auto 24px; }
.breadcrumb { display: inline-flex; align-items: center; gap: 8px; font-size: var(--font-size-sm); color: rgba(255,255,255,0.6); }
.breadcrumb a { color: rgba(255,255,255,0.6); }
.breadcrumb a:hover { color: var(--secondary-color); }
.breadcrumb .sep { color: rgba(255,255,255,0.3); }
.breadcrumb .current { color: var(--secondary-color); }