/* ============================================
   Смарт.Прожектс — Анимации
   ============================================ */

/* Базовые состояния для появления */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.8s var(--easing), transform 0.8s var(--easing);
    will-change: opacity, transform;
}

.animate-on-scroll[data-animate="fade-up"] {
    transform: translateY(40px);
}
.animate-on-scroll[data-animate="fade-down"] {
    transform: translateY(-40px);
}
.animate-on-scroll[data-animate="fade-left"] {
    transform: translateX(40px);
}
.animate-on-scroll[data-animate="fade-right"] {
    transform: translateX(-40px);
}
.animate-on-scroll[data-animate="zoom-in"] {
    transform: scale(0.92);
}
.animate-on-scroll[data-animate="zoom-out"] {
    transform: scale(1.08);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* Hover-эффекты с микроанимациями */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(124,92,255,0.2); }
    50% { box-shadow: 0 0 40px rgba(124,92,255,0.5); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.shimmer {
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.04) 0%,
        rgba(255,255,255,0.1) 50%,
        rgba(255,255,255,0.04) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2.5s linear infinite;
}

/* Появление цифр статистики (счётчик появляется плавно) */
.hero-stat__num.counting {
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Параллакс-карточки в hero */
.hero-card { transition: transform 0.6s var(--easing); }

/* Hover-эффект для кнопок (плавный ripple) */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease, opacity 0.6s ease;
    opacity: 0;
    pointer-events: none;
}

.btn.ripple::after {
    width: 300px;
    height: 300px;
    opacity: 1;
}

/* Magnetic / 3D: тильт карточек — main.js (service-card, case-card, post-card) */
.advantage {
    transform-style: preserve-3d;
    transition: transform 0.3s var(--easing), border-color 0.3s var(--easing), background 0.3s var(--easing);
}

/* Анимация при наведении на навигацию */
.nav__link {
    overflow: visible;
}

/* Эффект для текста с градиентным «свечением» */
.text-gradient {
    background-size: 200% auto;
    animation: gradientShift 4s linear infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

/* Анимация для фоновых градиентов */
.hero__orb { animation: orbFloat 20s ease-in-out infinite; }

/* Анимация скролл-индикатора */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* Магия для статистики (увеличение) */
.hero-stat {
    transition: transform 0.3s var(--easing);
}

.hero-stat:hover {
    transform: translateY(-4px);
}

.hero-stat:hover .hero-stat__num {
    text-shadow: 0 0 30px rgba(124, 92, 255, 0.5);
}

/* Анимация подсветки case-card при наведении */
.case-card__scene::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: 0 0 0 0 rgba(124, 92, 255, 0);
    pointer-events: none;
    transition: box-shadow 0.4s var(--easing);
    z-index: 3;
}

.case-card:hover .case-card__scene::after {
    box-shadow: 0 30px 60px -20px rgba(124, 92, 255, 0.35);
}

/* Кейсы: появление при скролле на .case-card__scene; 3D-тильт на .case-card — main.js (как service-card) */
.cases__grid .case-card.animate-on-scroll[data-animate="fade-up"],
.case-card.animate-on-scroll[data-animate="fade-up"] {
    opacity: 1;
    transform: none;
    transition: none;
}

.cases__grid .case-card.animate-on-scroll[data-animate="fade-up"] .case-card__scene,
.case-card.animate-on-scroll[data-animate="fade-up"] .case-card__scene {
    opacity: 0;
    transition: opacity 0.75s var(--easing), border-color var(--t-base) var(--easing), background var(--t-base) var(--easing), box-shadow var(--t-base) var(--easing);
}

.cases__grid .case-card.animate-on-scroll[data-animate="fade-up"].visible .case-card__scene,
.case-card.animate-on-scroll[data-animate="fade-up"].visible .case-card__scene {
    opacity: 1;
}

/* Блог: появление при скролле на .post-card__scene; 3D-тильт на .post-card — main.js */
.post-card__scene::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: 0 0 0 0 rgba(124, 92, 255, 0);
    pointer-events: none;
    transition: box-shadow 0.4s var(--easing);
    z-index: 3;
}

.post-card:hover .post-card__scene::after {
    box-shadow: 0 30px 60px -20px rgba(124, 92, 255, 0.35);
}

.blog__grid .post-card.animate-on-scroll[data-animate="fade-up"] .post-card__scene,
.post-card.animate-on-scroll[data-animate="fade-up"] .post-card__scene,
.blog-page .post-card.animate-on-scroll[data-animate="fade-up"] .post-card__scene,
.post-related .post-card.animate-on-scroll[data-animate="fade-up"] .post-card__scene {
    opacity: 0;
    transition: opacity 0.75s var(--easing), border-color var(--t-base) var(--easing), background var(--t-base) var(--easing), box-shadow var(--t-base) var(--easing);
}

.blog__grid .post-card.animate-on-scroll[data-animate="fade-up"].visible .post-card__scene,
.post-card.animate-on-scroll[data-animate="fade-up"].visible .post-card__scene,
.blog-page .post-card.animate-on-scroll[data-animate="fade-up"].visible .post-card__scene,
.post-related .post-card.animate-on-scroll[data-animate="fade-up"].visible .post-card__scene {
    opacity: 1;
}

/* Карточка-обёртка не дублирует fade (иначе двойная прозрачность) */
.blog__grid .post-card.animate-on-scroll[data-animate="fade-up"],
.post-card.animate-on-scroll[data-animate="fade-up"],
.blog-page .post-card.animate-on-scroll[data-animate="fade-up"],
.post-related .post-card.animate-on-scroll[data-animate="fade-up"] {
    opacity: 1;
    transform: none;
    transition: none;
}

/* Reveal-эффект для длинных списков */
.reveal-list > * {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s var(--easing), transform 0.5s var(--easing);
}

.reveal-list.visible > * { opacity: 1; transform: translateY(0); }
.reveal-list.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-list.visible > *:nth-child(2) { transition-delay: 0.10s; }
.reveal-list.visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-list.visible > *:nth-child(4) { transition-delay: 0.20s; }
.reveal-list.visible > *:nth-child(5) { transition-delay: 0.25s; }

/* Кастомные иконки крутятся при появлении */
.advantage.visible .advantage__icon {
    animation: rotateIn 0.8s var(--easing-back);
}

@keyframes rotateIn {
    from {
        transform: rotate(-180deg) scale(0.5);
        opacity: 0;
    }
    to {
        transform: rotate(0) scale(1);
        opacity: 1;
    }
}

/* Магия для service-card */
.service-card.visible .service-card__icon {
    animation: bounceIn 0.7s var(--easing-back);
}

/* Страница услуги — иконки блоков (как service-card на главной) */
.service-feature.visible .service-feature__icon {
    animation: bounceIn 0.7s var(--easing-back);
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.12); opacity: 1; }
    100% { transform: scale(1); }
}

/* Логотип: живая сеть связей внутри пентагона */
.logo-mark__ring {
    stroke-dasharray: 120;
    stroke-dashoffset: 0;
    animation: logoRingTrace 5s linear infinite;
}

.logo-mark__link {
    stroke-width: 1.15;
    stroke-opacity: 0.42;
    stroke-dasharray: 3 16;
    animation: logoLinkFlow 2.6s linear infinite;
}

.logo-mark__link--diag {
    stroke-opacity: 0.28;
    stroke-dasharray: 2 18;
}

.logo-mark__link--bridge {
    stroke-opacity: 0.22;
    stroke-width: 1;
}

.logo-mark__links line:nth-child(1)  { animation-delay: 0s; }
.logo-mark__links line:nth-child(2)  { animation-delay: -0.35s; }
.logo-mark__links line:nth-child(3)  { animation-delay: -0.7s; }
.logo-mark__links line:nth-child(4)  { animation-delay: -1.05s; }
.logo-mark__links line:nth-child(5)  { animation-delay: -1.4s; }
.logo-mark__links line:nth-child(6)  { animation-delay: -1.75s; }
.logo-mark__links line:nth-child(7)  { animation-delay: -0.2s; }
.logo-mark__links line:nth-child(8)  { animation-delay: -0.55s; }
.logo-mark__links line:nth-child(9)  { animation-delay: -0.9s; }
.logo-mark__links line:nth-child(10) { animation-delay: -1.25s; }
.logo-mark__links line:nth-child(11) { animation-delay: -0.45s; }
.logo-mark__links line:nth-child(12) { animation-delay: -0.8s; }
.logo-mark__links line:nth-child(13) { animation-delay: -1.15s; }
.logo-mark__links line:nth-child(14) { animation-delay: -1.5s; }
.logo-mark__links line:nth-child(15) { animation-delay: -0.6s; }
.logo-mark__links line:nth-child(16) { animation-delay: -1.9s; }

@keyframes logoLinkFlow {
    to { stroke-dashoffset: -38; }
}

@keyframes logoRingTrace {
    0%, 100% { stroke-opacity: 1; }
    50%      { stroke-opacity: 0.72; }
}

.logo-mark__node--v,
.logo-mark__node--n {
    transform-box: fill-box;
    transform-origin: center;
    animation: logoNodePulse 2.8s var(--easing) infinite;
}

.logo-mark__nodes .logo-mark__node--n:nth-child(7)  { animation-delay: 0s; }
.logo-mark__nodes .logo-mark__node--n:nth-child(8)  { animation-delay: -0.4s; }
.logo-mark__nodes .logo-mark__node--n:nth-child(9)  { animation-delay: -0.8s; }
.logo-mark__nodes .logo-mark__node--n:nth-child(10) { animation-delay: -1.2s; }

.logo-mark__nodes .logo-mark__node--v:nth-child(1) { animation-delay: -0.15s; }
.logo-mark__nodes .logo-mark__node--v:nth-child(2) { animation-delay: -0.5s; }
.logo-mark__nodes .logo-mark__node--v:nth-child(3) { animation-delay: -0.85s; }
.logo-mark__nodes .logo-mark__node--v:nth-child(4) { animation-delay: -1.2s; }
.logo-mark__nodes .logo-mark__node--v:nth-child(5) { animation-delay: -1.55s; }
.logo-mark__nodes .logo-mark__node--v:nth-child(6) { animation-delay: -1.9s; }

.logo-mark__node--hub {
    animation: logoHubPulse 2s var(--easing) infinite;
}

.logo-mark__node--hub-core {
    animation: logoHubCore 2s var(--easing) infinite;
}

.logo:hover .logo-mark__link {
    stroke-opacity: 0.62;
}

.logo:hover .logo-mark__node--hub {
    filter: drop-shadow(0 0 6px rgba(0, 212, 255, 0.55));
}

@keyframes logoNodePulse {
    0%, 100% { opacity: 0.75; transform: scale(1); }
    50%      { opacity: 1; transform: scale(1.18); }
}

@keyframes logoHubPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.88; transform: scale(1.08); }
}

@keyframes logoHubCore {
    0%, 100% { opacity: 0.85; }
    50%      { opacity: 1; }
}

/* Уважение к prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .hero__orb,
    .preloader__logo circle,
    .logo-mark__ring,
    .logo-mark__link,
    .logo-mark__node--v,
    .logo-mark__node--n,
    .logo-mark__node--hub,
    .logo-mark__node--hub-core,
    .logo-mark__signals { display: none !important; }
}