/* BoostKlient Theme System — Light / Dark / Auto */

/* === LIGHT (default) === */
:root, [data-theme="light"] {
  --bg-page:        #f0f2f5;
  --bg-section:     #ffffff;
  --bg-section-alt: #f8fafc;
  --bg-card:        #ffffff;
  --bg-card-hover:  #f8fafc;
  --bg-pin:         rgba(15,23,42,0.88);

  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;
  --text-invert:    #ffffff;

  --border:         rgba(0,0,0,0.07);
  --border-strong:  rgba(0,0,0,0.14);

  --primary:        #7c3aed;
  --primary-hover:  #6d28d9;
  --primary-dim:    rgba(124,58,237,0.10);
  --primary-border: rgba(124,58,237,0.22);

  --success:        #16a34a;
  --warning:        #d97706;
  --danger:         #dc2626;

  --shadow-sm:      0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:      0 4px 16px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.05);
  --shadow-lg:      0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);
  --shadow-hover:   0 8px 28px rgba(124,58,237,0.18);

  --nav-bg:         rgba(255,255,255,0.88);
  --nav-border:     rgba(0,0,0,0.07);
  --nav-text:       #334155;
  --nav-text-active:#0f172a;
  --nav-dd-bg:      rgba(255,255,255,0.97);

  --radius-sm:      8px;
  --radius-md:      12px;
  --radius-lg:      16px;
  --radius-xl:      20px;

  --transition:     all 0.18s ease;

  /* Quiz card gradients — used via [data-role] scoping in landing.css */
  --quiz-shop-from:    #ff9500;
  --quiz-shop-to:      #ff2d55;
  --quiz-smm-from:     #7c3aed;
  --quiz-smm-to:       #06b6d4;
  --quiz-blogger-from: #10b981;
  --quiz-blogger-to:   #6366f1;

  /* Pin mockup border gradient — gold shimmer matching pin-title color */
  --pin-border-from: #c7a03c;
  --pin-border-to:   #f9de90;
}

/* === DARK === */
[data-theme="dark"] {
  --bg-page:        #0a0f1e;
  --bg-section:     #0f172a;
  --bg-section-alt: #1e293b;
  --bg-card:        #1a2438;
  --bg-card-hover:  #243044;
  --bg-pin:         rgba(15,23,42,0.95);

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;
  --text-invert:    #0f172a;

  --border:         rgba(255,255,255,0.07);
  --border-strong:  rgba(255,255,255,0.14);

  --primary:        #a78bfa;
  --primary-hover:  #8b5cf6;
  --primary-dim:    rgba(167,139,250,0.12);
  --primary-border: rgba(167,139,250,0.28);

  --success:        #4ade80;
  --warning:        #fbbf24;
  --danger:         #f87171;

  --shadow-sm:      0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:      0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg:      0 8px 32px rgba(0,0,0,0.45);
  --shadow-hover:   0 8px 28px rgba(167,139,250,0.2);

  --nav-bg:         rgba(10,15,30,0.92);
  --nav-border:     rgba(255,255,255,0.07);
  --nav-text:       #94a3b8;
  --nav-text-active:#f1f5f9;
  --nav-dd-bg:      rgba(15,23,42,0.97);
}

/* === AUTO (system preference) === */
@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg-page:        #0a0f1e;
    --bg-section:     #0f172a;
    --bg-section-alt: #1e293b;
    --bg-card:        #1a2438;
    --bg-card-hover:  #243044;
    --bg-pin:         rgba(15,23,42,0.95);
    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:     #64748b;
    --text-invert:    #0f172a;
    --border:         rgba(255,255,255,0.07);
    --border-strong:  rgba(255,255,255,0.14);
    --primary:        #a78bfa;
    --primary-hover:  #8b5cf6;
    --primary-dim:    rgba(167,139,250,0.12);
    --primary-border: rgba(167,139,250,0.28);
    --success:        #4ade80;
    --warning:        #fbbf24;
    --danger:         #f87171;
    --shadow-sm:      0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:      0 4px 16px rgba(0,0,0,0.35);
    --shadow-lg:      0 8px 32px rgba(0,0,0,0.45);
    --shadow-hover:   0 8px 28px rgba(167,139,250,0.2);
    --nav-bg:         rgba(10,15,30,0.92);
    --nav-border:     rgba(255,255,255,0.07);
    --nav-text:       #94a3b8;
    --nav-text-active:#f1f5f9;
    --nav-dd-bg:      rgba(15,23,42,0.97);
  }
}

/* === GLOBAL TRANSITIONS === */
*, *::before, *::after {
  transition: background-color 0.22s ease, border-color 0.22s ease, color 0.18s ease, box-shadow 0.18s ease;
}
/* Исключения — не анимировать всё подряд */
img, svg, canvas, video { transition: none; }

/* === BODY === */
body {
  background: var(--bg-page) !important;
  color: var(--text-primary);
}

/* === NAVBAR === */
nav.bk-nav {
  background: var(--nav-bg) !important;
  border-bottom: 1px solid var(--nav-border) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
nav.bk-nav a, nav.bk-nav button {
  color: var(--nav-text);
}
nav.bk-nav a:hover, nav.bk-nav button:hover {
  color: var(--nav-text-active);
}
.nav-dropdown {
  background: var(--nav-dd-bg) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow-lg) !important;
}

/* === CARDS === */
.bk-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.bk-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-border);
  transform: translateY(-2px);
}

/* === BUTTONS === */
.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary-border);
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-outline:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

/* === THEME TOGGLE === */
.theme-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-section-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px;
  gap: 2px;
}
.theme-toggle-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px 9px;
  border-radius: 16px;
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
  line-height: 1;
}
.theme-toggle-btn.active {
  background: var(--primary);
  color: #fff;
}
.theme-toggle-btn:hover:not(.active) {
  background: var(--primary-dim);
  color: var(--primary);
}

/* === SECTIONS === */
.section-white  { background: var(--bg-section); }
.section-alt    { background: var(--bg-section-alt); }
.section-page   { background: var(--bg-page); }

/* === HEADINGS === */
.h-gradient {
  background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
[data-theme="dark"] .h-gradient {
  background: linear-gradient(135deg, #a78bfa 0%, #c084fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

/* === BADGE === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-dim);
  border: 1px solid var(--primary-border);
  color: var(--primary);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* === FAQ items === */
.faq-item-new {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item-new:hover {
  border-color: var(--primary-border);
}
.faq-q {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9375rem;
}
.faq-a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.75;
}

/* === STATS === */
.stat-number {
  color: var(--primary);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}
.stat-label {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 4px;
}

/* === FEATURE CARD === */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-border);
  transform: translateY(-3px);
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 22px;
}
.feature-title {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* === STEP CARD === */
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  box-shadow: var(--shadow-md);
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.step-num {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.step-emoji {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.step-title {
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

/* === TESTIMONIAL === */
.testimonial-card {
  background: var(--bg-section-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
[data-theme="dark"] .testimonial-card {
  background: var(--bg-card);
}

/* === PRICING CARD === */
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-border), var(--shadow-lg);
}
.pricing-price {
  color: var(--text-primary);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
}
.pricing-period {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 400;
}
.pricing-feature {
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
}
.pricing-check {
  color: var(--success);
  flex-shrink: 0;
}

/* === PROBLEM CARD === */
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.problem-card:hover {
  box-shadow: var(--shadow-md);
}
.problem-title {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.problem-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

/* === QUIZ — стили в landing.css, здесь только quiz-result-card === */
.quiz-result-card {
  background: var(--bg-card);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

/* === NOTIFICATION TOAST === */
.bk-toast {
  position: fixed;
  top: 76px;
  right: 20px;
  z-index: 9999;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateX(120%);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 360px;
}
.bk-toast.show {
  transform: translateX(0);
}
.bk-toast-success { background: #16a34a; color: #fff; }
.bk-toast-error   { background: #dc2626; color: #fff; }
.bk-toast-info    { background: var(--primary); color: #fff; }