/* Главная: полноэкранный hero, цвета из темы, 3D и нестандартные анимации */

/* --- Переменные лендинга берём из theme.css (--landing-bg, --landing-surface и т.д.) --- */

/* --- Нестандартная анимация появления: «прорез» слева направо + масштаб --- */
@keyframes index-reveal-in {
  0% {
    opacity: 0;
    transform: translateX(-40px) scale(0.96);
    clip-path: inset(0 100% 0 0);
  }
  60% {
    opacity: 1;
    clip-path: inset(0 0% 0 0);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
    clip-path: inset(0 0% 0 0);
  }
}

@keyframes index-fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Плавающий элемент (привлекает внимание) */
@keyframes index-float-3d {
  0%, 100% {
    transform: translateY(0) translateZ(0) rotate(-2deg);
  }
  50% {
    transform: translateY(-18px) translateZ(8px) rotate(1deg);
  }
}

@keyframes index-float-dot {
  0%, 100% {
    transform: translateY(0) scale(1);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-12px) scale(1.15);
    opacity: 1;
  }
}

/* Движущийся градиент в hero */
@keyframes index-gradient-shift {
  0% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
  }
  50% {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(1.15) rotate(5deg);
  }
  100% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
  }
}

.animate-in {
  opacity: 0;
  animation: index-reveal-in 0.85s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.animate-in-delay-1 { animation-delay: 0.12s; }
.animate-in-delay-2 { animation-delay: 0.28s; }
.animate-in-delay-3 { animation-delay: 0.45s; }
.animate-in-delay-4 { animation-delay: 0.6s; }

/* --- Снимаем ограничение ширины с main для полноэкранного лендинга --- */
.page-index main {
  max-width: none;
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
}

.index-main {
  padding: 0;
  overflow-x: hidden;
}

/* Полноэкранные секции без отступов от глобального section */
.page-index main .index-hero,
.page-index main .index-stats-strip,
.page-index main .index-how {
  margin-bottom: 0;
  border-radius: 0;
  box-shadow: none;
}
.page-index main .index-hero {
  padding: 0;
}

.index-hero {
  position: relative;
  min-height: 95vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--landing-bg);
}

.index-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Шестерёнки: кольца с «зубьями» из conic-gradient, хорошо видно вращение */
.index-hero-gear {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: repeating-conic-gradient(
    from 0deg,
    rgba(255, 255, 255, 0.22) 0deg 8deg,
    transparent 8deg 16deg
  );
  mask: radial-gradient(circle, transparent 42%, black 42%);
  -webkit-mask: radial-gradient(circle, transparent 42%, black 42%);
  pointer-events: none;
}
.index-hero-gear--1 {
  width: 95vmax;
  height: 95vmax;
  background: repeating-conic-gradient(
    from 0deg,
    rgba(255, 255, 255, 0.18) 0deg 10deg,
    transparent 10deg 20deg
  );
  mask: radial-gradient(circle, transparent 38%, black 38%);
  -webkit-mask: radial-gradient(circle, transparent 38%, black 38%);
  animation: index-rotate 45s linear infinite;
}
.index-hero-gear--2 {
  width: 62vmax;
  height: 62vmax;
  background: repeating-conic-gradient(
    from 0deg,
    transparent 0deg 15deg,
    rgba(255, 255, 255, 0.2) 15deg 30deg
  );
  mask: radial-gradient(circle, transparent 40%, black 40%);
  -webkit-mask: radial-gradient(circle, transparent 40%, black 40%);
  animation: index-rotate 32s linear infinite reverse;
}
.index-hero-gear--3 {
  width: 38vmax;
  height: 38vmax;
  background: repeating-conic-gradient(
    from 0deg,
    rgba(255, 255, 255, 0.15) 0deg 6deg,
    transparent 6deg 12deg
  );
  mask: radial-gradient(circle, transparent 35%, black 35%);
  -webkit-mask: radial-gradient(circle, transparent 35%, black 35%);
  animation: index-rotate 22s linear infinite;
}
@keyframes index-rotate {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.index-hero-gradient-move {
  position: absolute;
  width: 120%;
  height: 120%;
  top: 50%;
  left: 50%;
  background: radial-gradient(
    ellipse 80% 60% at 50% 50%,
    var(--landing-spot) 50%,
    transparent 55%
  );
  animation: index-gradient-shift 12s ease-in-out infinite;
  pointer-events: none;
}

.index-hero-glow {
  position: absolute;
  width:  min(80vw, 500px);
  height: min(80vw, 500px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--landing-spot);
  opacity: 0.08;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

/* Плавающие бейджи (3D-ощущение) */
.index-hero-float {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}
.index-hero-float--1 {
  top: 18%;
  left: 12%;
  animation: index-float-3d 5s ease-in-out infinite;
}
.index-hero-float--2 {
  top: 28%;
  right: 18%;
  animation: index-float-dot 4s ease-in-out infinite 1s;
}
.index-hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--landing-spot);
  color: var(--header-from, #162b4d);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 9999px;
  box-shadow: 0 0 24px rgba(62, 196, 212, 0.45);
}
.index-hero-dot {
  display: block;
  width: 16px;
  height: 16px;
  background: var(--landing-spot-secondary);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(27, 122, 140, 0.55);
}

.index-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem 1.5rem 4rem;
  max-width: 56rem;
  margin: 0 auto;
}

.index-hero-title {
  margin: 0 0 1.5rem;
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

.index-hero-line {
  display: block;
}
.index-hero-line--1 {
  color: var(--landing-foreground);
}
.index-hero-line--2 {
  color: var(--landing-spot);
}

.index-hero-lead {
  margin: 0 0 2rem;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--landing-muted);
  line-height: 1.5;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.index-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  padding: 8px 0;
}

/* Кнопки с 3D-эффектом при наведении (лёгкий «вылет» вперёд) */
.index-hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 2rem;
  height: 4rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  transform-style: preserve-3d;
}
.index-hero-btn--primary {
  background: var(--landing-foreground);
  color: var(--header-from, #162b4d);
}
.index-hero-btn--primary:hover {
  box-shadow: 0 12px 40px rgba(255, 255, 255, 0.25), 0 0 0 1px rgba(255,255,255,0.1);
  transform: translateY(-3px) scale(1.02);
}
.index-hero-btn--ghost {
  background: transparent;
  color: var(--landing-foreground);
  border: 2px solid rgba(255, 255, 255, 0.35);
}
.index-hero-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-3px) scale(1.02);
}

.index-hero-links {
  margin: 0;
  font-size: 0.95rem;
  color: var(--landing-muted);
}
.index-hero-links a {
  color: var(--landing-foreground);
  text-decoration: none;
}
.index-hero-links a:hover {
  text-decoration: underline;
}
.index-hero-links-sep {
  margin: 0 0.5rem;
  opacity: 0.6;
}

.index-hero-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 10rem;
  background: linear-gradient(to top, var(--landing-surface-solid), transparent);
  pointer-events: none;
}

html[data-theme="dark"] .index-hero-fade {
  background: linear-gradient(to top, var(--color-background), transparent);
}

/* --- Полоса статистики: на всю ширину экрана --- */
.index-stats-strip {
  width: 100%;
  background: var(--landing-surface-solid);
  border-top: 1px solid var(--landing-border);
  border-bottom: 1px solid var(--landing-border);
  padding: 2.5rem 1.5rem;
}

.index-stats-strip-inner {
  max-width: 75rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
@media (min-width: 768px) {
  .index-stats-strip-inner {
    grid-template-columns: repeat(4, 1fr);
  }
}

.index-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) {
  .index-stat {
    align-items: flex-start;
    text-align: left;
  }
}

.index-stat-value {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--landing-foreground);
  line-height: 1.2;
}
.index-stat-value--primary {
  color: var(--landing-spot);
}
.index-stat-value--secondary {
  color: var(--landing-spot-secondary);
}

.index-stat-label {
  font-size: 0.75rem;
  color: var(--landing-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 0.25rem;
}

/* --- Блок фич: 3D-наклон карточек при наведении --- */
.index-features {
  padding: 4rem 1.5rem;
  background: var(--color-background);
  width: 100%;
}

.index-features-inner {
  max-width: 75rem;
  margin: 0 auto;
}

.index-features-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-text);
  text-align: center;
}

.index-features-lead {
  margin: 0 0 3rem;
  font-size: 1.15rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.index-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  perspective: 1200px;
}
@media (min-width: 768px) {
  .index-features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.index-feature-card {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.3s;
  animation: index-fade-in-up 0.5s ease-out forwards;
  opacity: 0;
  animation-delay: calc(0.1s * (var(--ani-i, 0) + 1));
  transform-style: preserve-3d;
}
.index-feature-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: 0 24px 48px rgba(42, 82, 152, 0.15);
  transform: perspective(1200px) rotateX(4deg) rotateY(-4deg) translateY(-8px);
}

.index-feature-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  background: rgba(42, 82, 152, 0.12);
  color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: transform 0.4s ease;
}
.index-feature-card:hover .index-feature-icon {
  transform: scale(1.1) translateZ(10px);
}
.index-feature-icon--secondary {
  background: rgba(37, 87, 214, 0.12);
  color: var(--color-secondary);
}
.index-feature-icon--accent {
  background: rgba(255, 192, 159, 0.25);
  color: var(--color-accent);
}

.index-feature-card-title {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
}

.index-feature-card-text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

html[data-theme="dark"] .index-feature-card {
  background: var(--color-surface-alt);
  border-color: var(--color-border);
}
html[data-theme="dark"] .index-feature-card:hover {
  border-color: var(--color-primary-light);
}

/* --- Как это работает: на всю ширину экрана, карточки с 3D tilt --- */
.index-how {
  padding: 4rem 1.5rem;
  width: 100%;
  background: var(--landing-surface-solid);
}

.index-how-inner {
  max-width: 75rem;
  margin: 0 auto;
}

.index-how-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--landing-foreground);
  text-align: center;
}

.index-how-lead {
  margin: 0 0 3rem;
  font-size: 1.15rem;
  color: var(--landing-muted);
  text-align: center;
}

.index-how-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  perspective: 1000px;
}
@media (min-width: 768px) {
  .index-how-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.index-how-card {
  padding: 2rem;
  border-radius: 1.5rem;
  color: #fff;
  animation: index-fade-in-up 0.5s ease-out forwards;
  opacity: 0;
  animation-delay: calc(0.1s * (var(--ani-i, 0) + 1));
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  transform-style: preserve-3d;
}
.index-how-card:hover {
  transform: perspective(1000px) rotateY(-6deg) translateZ(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}
.index-how-card--1 {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}
.index-how-card--2 {
  background: linear-gradient(135deg, var(--landing-spot-secondary) 0%, #3d6de8 100%);
}
.index-how-card--3 {
  background: linear-gradient(135deg, var(--color-accent) 0%, #ffd4b8 100%);
  color: #1a1a1a;
}
.index-how-card--4 {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}
.index-how-card--5 {
  background: linear-gradient(135deg, var(--landing-spot-secondary) 0%, #3d6de8 100%);
}
.index-how-card--6 {
  background: linear-gradient(135deg, var(--color-accent) 0%, #ffd4b8 100%);
  color: #1a1a1a;
}

.index-how-num {
  display: block;
  font-size: 3.5rem;
  font-weight: 900;
  opacity: 0.35;
  line-height: 1;
  margin-bottom: 1rem;
}

.index-how-card-title {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
}

.index-how-card-text {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.95;
  line-height: 1.55;
}

/* --- CTA --- */
.index-cta-wrap {
  padding: 4rem 1.5rem;
  background: var(--color-background);
  width: 100%;
}

.index-cta-card {
  max-width: 48rem;
  margin: 0 auto;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  border-radius: 1.5rem;
  text-align: center;
  box-shadow: 0 8px 32px rgba(42, 82, 152, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.index-cta-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(42, 82, 152, 0.3);
}

.index-cta-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
}

.index-cta-text {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  opacity: 0.95;
  line-height: 1.5;
}
.index-cta-text a {
  color: #fff;
  text-decoration: underline;
}
.index-cta-text a:hover {
  text-decoration: none;
}

.index-cta-btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: #fff;
  color: var(--color-primary);
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.index-cta-btn:hover {
  transform: translateY(-2px) translateZ(4px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

@media (max-width: 767px) {
  .index-hero { min-height: 90vh; }
  .index-stat-value { font-size: 1.75rem; }
  .index-hero-float--1,
  .index-hero-float--2 { display: none; }
}