/* ================================================
   GUIDE PAGE — PREP
   ================================================ */
:root {
  --color-primary: #5a189a;
  --color-secondary: #ffc300;
  --color-background: #f4f7f9;
  --color-text: #333333;
  --color-soft-gray: #6b7280;
  --color-light-gray: #e5e7eb;
  --border-color: rgba(192, 192, 192, 0.5);
  --border-glass: rgba(255, 255, 255, 0.7);
  --bg-body: var(--color-background);
  --bg-glass-panel: rgba(255, 255, 255, 0.55);
  --bg-glass-card: rgba(255, 255, 255, 0.6);
  --shadow-glass: 0 8px 32px rgba(90, 24, 154, 0.12), 0 2px 8px rgba(0,0,0,0.06);
  --glass-blur: blur(18px) saturate(180%);
  --font-family-logo: 'Montserrat', sans-serif;
  --font-family-sans: 'Poppins', sans-serif;
}

body.dark {
  --bg-body: #050505;
  --bg-glass-panel: rgba(15, 10, 25, 0.65);
  --bg-glass-card: rgba(20, 15, 35, 0.6);
  --color-text: #ffffff;
  --color-soft-gray: #a3a3a3;
  --border-color: rgba(90, 24, 154, 0.3);
  --border-glass: rgba(90, 24, 154, 0.35);
  --color-secondary: #ffd60a;
  --shadow-glass: 0 8px 32px rgba(0,0,0,0.4), 0 0 0 1px rgba(90,24,154,0.15);
}

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

body {
  font-family: var(--font-family-sans);
  background: var(--bg-body);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 10%, rgba(90,24,154,0.28) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 80%, rgba(255,195,0,0.22) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 30%, rgba(79,172,254,0.15) 0%, transparent 45%),
    radial-gradient(ellipse at 30% 70%, rgba(90,24,154,0.12) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

/* HEADER */
header {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-glass);
  padding: 16px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

body.dark header {
  background: rgba(10, 5, 20, 0.75);
  border-bottom-color: rgba(90, 24, 154, 0.3);
}

.header-container {
  display: flex;
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
  gap: 12px;
}

.back-btn {
  background: rgba(90,24,154,0.08);
  border: none;
  color: var(--color-primary);
  font-size: 1rem;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 50%;
  transition: background 0.2s;
  flex-shrink: 0;
}
.back-btn:hover { background: rgba(90,24,154,0.16); }
body.dark .back-btn { color: var(--color-secondary); background: rgba(255,214,10,0.08); }

.header-title {
  font-family: var(--font-family-logo);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
}
body.dark .header-title { color: var(--color-secondary); }

/* MAIN */
.main-container {
  flex: 1;
  padding: 24px 16px 40px;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

/* GUIDE CONTENT WRAPPER */
.guide-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* INTRO SECTION */
.intro-section {
  background: var(--bg-glass-panel);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: var(--shadow-glass);
  padding: 36px 28px;
  text-align: center;
}

.intro-section h1 {
  font-family: var(--font-family-logo);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 14px;
  border-bottom: 3px solid var(--color-secondary);
  display: inline-block;
  padding-bottom: 8px;
}
body.dark .intro-section h1 { color: var(--color-secondary); }

.intro-text p {
  font-size: 0.95rem;
  color: var(--color-soft-gray);
  line-height: 1.75;
  max-width: 560px;
  margin: 0 auto;
}

/* GUIDE SECTIONS */
.guide-content section:not(.intro-section) {
  background: var(--bg-glass-panel);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  box-shadow: var(--shadow-glass);
  padding: 24px;
  overflow: hidden;
}

.guide-content h2 {
  font-family: var(--font-family-logo);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.guide-content h2::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: 4px;
  flex-shrink: 0;
}

body.dark .guide-content h2 { color: var(--color-secondary); }

.guide-content h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 18px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.85;
}

.guide-content p {
  margin-bottom: 10px;
  color: var(--color-soft-gray);
  line-height: 1.7;
  font-size: 0.9rem;
}

.guide-content ul,
.guide-content ol {
  margin: 8px 0 12px;
  padding-left: 20px;
}

.guide-content li {
  margin-bottom: 6px;
  color: var(--color-soft-gray);
  line-height: 1.6;
  font-size: 0.88rem;
}

.guide-content li strong { color: var(--color-text); }

.guide-content ul ul,
.guide-content ol ul {
  margin-top: 4px;
  margin-bottom: 4px;
}

/* VERSION INFO */
.version-info {
  background: rgba(90,24,154,0.06);
  border: 1px solid rgba(90,24,154,0.15);
  border-left: 4px solid var(--color-primary);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 8px 0;
}

body.dark .version-info {
  background: rgba(90,24,154,0.12);
  border-color: rgba(90,24,154,0.3);
  border-left-color: var(--color-secondary);
}

.version-info p { margin: 0 0 6px; font-size: 0.88rem; }
.version-info p:last-child { margin: 0; }

/* THANK YOU */
.thank-you {
  background: var(--bg-glass-panel);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  box-shadow: var(--shadow-glass);
  padding: 28px;
  text-align: center;
}

.thank-you p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0;
}
body.dark .thank-you p { color: var(--color-secondary); }

/* RESPONSIVE */
@media (max-width: 600px) {
  .intro-section { padding: 24px 18px; }
  .intro-section h1 { font-size: 1.4rem; }
  .guide-content section:not(.intro-section) { padding: 18px; }
}

@media (min-width: 1024px) {
  .main-container { padding-top: 40px; }
}