/* Базовые стили */
html, body {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Скрытие скроллбара */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f9fafb; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* Стили для матового стекла */
.glass {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
}

/* Интерактивный фон частиц */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -2;
}


/* Прыгающие буквы (Bouncing Letters) */
.bouncing-letters {
    display: inline-flex;
}
.bouncing-letter {
    display: inline-block;
    animation: bounce-letter 2s ease-in-out infinite;
}
@keyframes bounce-letter {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Специфичные градиенты для текста (По скриншоту) */
.text-pink-gradient {
    background: linear-gradient(to right, #ec4899, #d946ef);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-blue-gradient {
    background: linear-gradient(to right, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Pill Nav */
.pill-nav {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(229, 231, 235, 0.5);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border-radius: 9999px;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
}

/* Flip Card CSS - ВОТ ЧЕГО НЕ ХВАТАЛО */
.flip-card {
    background-color: transparent;
    perspective: 1000px;
}
.flip-card-inner {
    position: relative;
    width: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1);
    transform-style: preserve-3d;
    cursor: pointer;
}
.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}
.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    top: 0;
    left: 0;
}
.flip-card-front {
    z-index: 2;
    transform: rotateY(0deg);
}
.flip-card-back {
    transform: rotateY(180deg);
}
/* Конец Flip Card CSS */

/* Таймлайн стили и Вертикальный прогресс */
.roadmap-container {
    position: relative;
    padding-left: 2rem;
}
@media (min-width: 768px) {
    .roadmap-container { padding-left: 0; }
}
.roadmap-line-bg {
    position: absolute;
    left: 2rem;
    top: 0;
    bottom: 0;
    width: 4px;
    background: #e5e7eb;
    border-radius: 4px;
}
@media (min-width: 768px) {
    .roadmap-line-bg { left: 50%; transform: translateX(-50%); }
}
.roadmap-line-fill {
    position: absolute;
    top: 0;
    left: 2rem;
    width: 4px;
    height: 0%; 
    background: linear-gradient(to bottom, #8b5cf6, #ec4899);
    border-radius: 4px;
    transition: height 0.2s ease-out;
}
@media (min-width: 768px) {
    .roadmap-line-fill { left: 50%; transform: translateX(-50%); }
}
.timeline-dot {
    width: 24px;
    height: 24px;
    background-color: #ffffff;
    border-radius: 50%;
    border: 5px solid #d1d5db;
    position: absolute;
    left: -10px;
    z-index: 2;
    transition: all 0.3s ease;
}
@media (min-width: 768px) {
    .timeline-dot { left: 50%; transform: translateX(-50%); }
}
.timeline-item.active .timeline-dot {
    border-color: #8b5cf6;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.2);
}

/* Карточки Направлений (Предметы) */
.subject-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-tap-highlight-color: transparent;
}
.subject-card:hover, .subject-card:active, .subject-card.lit-up {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}
@media (min-width: 1024px) {
    .subject-card:hover, .subject-card.lit-up {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    }
}
.subject-card-math:hover, .subject-card-math:active, .subject-card-math.lit-up { border-color: #fbcfe8; }
.subject-card-rus:hover, .subject-card-rus:active, .subject-card-rus.lit-up { border-color: #ddd6fe; }

/* Фоновые цифры для карточек (01, 02) */
.bg-number {
    position: absolute;
    top: -1.5rem;
    right: 1.5rem;
    font-size: 8rem;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 2px #94a3b8;
    line-height: 1;
    opacity: 0.15;
    z-index: 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}
body.dark .bg-number { -webkit-text-stroke: 2px #334155; }

/* Математика (Розовый неон) */
.subject-card-math:hover .bg-number, .subject-card-math:active .bg-number, .subject-card-math.lit-up .bg-number {
    -webkit-text-stroke: 2px #ec4899;
    color: rgba(236, 72, 153, 0.1);
    text-shadow: 0 0 20px rgba(236, 72, 153, 0.5);
    opacity: 0.6;
    transform: scale(1.1) translate(-10px, 10px);
}

/* Русский язык (Синий неон) */
.subject-card-rus:hover .bg-number, .subject-card-rus:active .bg-number, .subject-card-rus.lit-up .bg-number {
    -webkit-text-stroke: 2px #3b82f6;
    color: rgba(59, 130, 246, 0.1);
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
    opacity: 0.6;
    transform: scale(1.1) translate(-10px, 10px);
}

/* Формат Индивидуально (Фиолетовый неон) */
.format-ind:hover .bg-number, .format-ind:active .bg-number, .format-ind.lit-up .bg-number {
    -webkit-text-stroke: 2px #8b5cf6;
    color: rgba(139, 92, 246, 0.1);
    text-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
    opacity: 0.6;
    transform: scale(1.1) translate(-10px, 10px);
}

/* Формат Группа (Бирюзовый неон) */
.format-group:hover .bg-number, .format-group:active .bg-number, .format-group.lit-up .bg-number {
    -webkit-text-stroke: 2px #14b8a6;
    color: rgba(20, 184, 166, 0.1);
    text-shadow: 0 0 20px rgba(20, 184, 166, 0.5);
    opacity: 0.6;
    transform: scale(1.1) translate(-10px, 10px);
}

/* Flip Card (Специально для клика) */
.flip-card {
    perspective: 1000px;
}
.flip-card-inner {
    position: relative;
    width: 100%;
    transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1);
    transform-style: preserve-3d;
}
.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}
.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    top: 0;
    left: 0;
}
.flip-card-back {
    transform: rotateY(180deg);
}

/* FAQ Аккордеон */
.faq-details { transition: all 0.3s ease; }
.faq-details > summary { list-style: none; cursor: pointer; }
.faq-details > summary::-webkit-details-marker { display: none; }
.faq-icon { transition: transform 0.3s ease; }
.faq-details[open] .faq-icon { transform: rotate(45deg); }
.faq-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease-out;
}
.faq-details[open] .faq-content { grid-template-rows: 1fr; }
.faq-content-inner { overflow: hidden; }

/* Маскот (Сова / Иконка) */
.mascot-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
    display: flex;
    align-items: flex-end;
    gap: 10px;
}
.mascot-speech {
    background: white;
    padding: 12px 20px;
    border-radius: 20px 20px 0 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    font-size: 14px;
    font-weight: 600;
    color: #6366f1;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s;
    pointer-events: none;
    border: 1px solid #e0e7ff;
}
.mascot-container:hover .mascot-speech {
    opacity: 1;
    transform: translateY(0);
}
.mascot {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 35px;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
    animation: float 3s ease-in-out infinite;
    transition: transform 0.3s;
    border: 3px solid white;
}
.mascot:hover { transform: scale(1.1) rotate(10deg); }

/* Методика (4 колонки) */
.methodology-grid {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid #f1f5f9;
    border-radius: 1.5rem;
    background: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    overflow: hidden;
}
@media (min-width: 768px) {
    .methodology-grid { grid-template-columns: repeat(4, 1fr); }
}
.methodology-item {
    padding: 2.5rem;
    border-bottom: 1px solid #f1f5f9;
}
@media (min-width: 768px) {
    .methodology-item {
        border-bottom: none;
        border-right: 1px solid #f1f5f9;
    }
    .methodology-item:last-child { border-right: none; }
}
.methodology-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1px #e2e8f0;
    line-height: 1;
    margin-bottom: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 01: Знакомство - Розовый */
.methodology-item:nth-child(1):hover .methodology-number,
.methodology-item:nth-child(1):active .methodology-number,
.methodology-item:nth-child(1).lit-up .methodology-number {
    -webkit-text-stroke: 1.5px #ec4899;
    color: rgba(236, 72, 153, 0.1);
    text-shadow: 0 0 15px rgba(236, 72, 153, 0.4);
    transform: scale(1.1) translateY(-5px);
}

/* 02: Личный план - Фиолетовый */
.methodology-item:nth-child(2):hover .methodology-number,
.methodology-item:nth-child(2):active .methodology-number,
.methodology-item:nth-child(2).lit-up .methodology-number {
    -webkit-text-stroke: 1.5px #8b5cf6;
    color: rgba(139, 92, 246, 0.1);
    text-shadow: 0 0 15px rgba(139, 92, 246, 0.4);
    transform: scale(1.1) translateY(-5px);
}

/* 03: Занятия без стресса - Голубой */
.methodology-item:nth-child(3):hover .methodology-number,
.methodology-item:nth-child(3):active .methodology-number,
.methodology-item:nth-child(3).lit-up .methodology-number {
    -webkit-text-stroke: 1.5px #3b82f6;
    color: rgba(59, 130, 246, 0.1);
    text-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
    transform: scale(1.1) translateY(-5px);
}

/* 04: Виден прогресс - Оранжевый */
.methodology-item:nth-child(4):hover .methodology-number,
.methodology-item:nth-child(4):active .methodology-number,
.methodology-item:nth-child(4).lit-up .methodology-number {
    -webkit-text-stroke: 1.5px #f59e0b;
    color: rgba(245, 158, 11, 0.1);
    text-shadow: 0 0 15px rgba(245, 158, 11, 0.4);
    transform: scale(1.1) translateY(-5px);
}

/* --- ТЕМНАЯ ТЕМА --- */
html.dark {
    background-color: #0f172a !important;
}
body.dark {
    background-color: transparent !important;
    color: #e2e8f0 !important;
}
body.dark .bg-white, body.dark .bg-white\/80, body.dark .bg-white\/90, body.dark .bg-white\/95 { background-color: rgba(30, 41, 59, 0.9) !important; border-color: rgba(255,255,255,0.05) !important; }
body.dark .text-gray-900, body.dark .text-gray-800 { color: #f8fafc !important; }
body.dark .text-gray-700, body.dark .text-gray-600 { color: #cbd5e1 !important; }
body.dark .text-gray-500 { color: #94a3b8 !important; }
body.dark .bg-gray-50, body.dark .bg-gray-100 { background-color: #0f172a !important; border-color: #1e293b !important; }
body.dark .bg-\[\#f8fafc\] { background-color: transparent !important; border-color: transparent !important; }
body.dark .glass { background-color: rgba(30, 41, 59, 0.8) !important; border-color: rgba(255, 255, 255, 0.1) !important; }
body.dark .border-gray-100, body.dark .border-gray-200, body.dark .border-white { border-color: #334155 !important; }
body.dark #particles-js { opacity: 1 !important; }
body.dark .particles-js-canvas-el { opacity: 1 !important; }
body.dark .methodology-grid { background-color: #1e293b !important; border-color: #334155 !important; }
body.dark .methodology-item { border-color: #334155 !important; }
body.dark .methodology-number { -webkit-text-stroke: 1px #475569; }
body.dark .pill-nav { background-color: rgba(30, 41, 59, 0.8) !important; border-color: rgba(255,255,255,0.1) !important; }
body.dark .faq-details { background-color: #1e293b !important; border-color: #334155 !important; }
body.dark .roadmap-line-bg { background-color: #334155 !important; }

/* Карточки контактов - специфичные стили */
.contact-card-icon-wrapper {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}
.contact-card-whatsapp { background-color: #ecfdf5; } /* green-50 */
.contact-card-telegram { background-color: #eff6ff; } /* blue-50 */
.contact-card-sferum { background-color: #e0e7ff; } /* indigo-50 */

/* --- Карусель Отзывов --- */
.marquee-container {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    position: relative;
    width: 100vw;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 1rem 0 2rem 0;
    -webkit-overflow-scrolling: touch;
    transform: translateZ(0); /* Исправление бага WebKit с масками */
    /* Градиентные маски по краям для плавного исчезновения */
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}
.marquee-container::-webkit-scrollbar {
    height: 10px;
}
.marquee-container::-webkit-scrollbar-track {
    background: #f1f5f9; 
    border-radius: 5px;
    margin: 0 5vw;
}
.marquee-container::-webkit-scrollbar-thumb {
    background: #cbd5e1; 
    border-radius: 5px;
}
.marquee-container::-webkit-scrollbar-thumb:hover {
    background: #94a3b8; 
}

.marquee-track {
    display: flex;
    width: max-content;
    padding: 0 2rem;
}

.review-card {
    flex: 0 0 auto;
    width: 220px;
    height: 320px;
    border-radius: 1.5rem;
    overflow: hidden;
    margin: 0 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 4px solid white;
    transition: transform 0.3s;
    background: white;
    cursor: pointer;
}
.review-card:hover {
    transform: scale(1.05) rotate(-2deg);
    z-index: 10;
}
.review-card img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: top;
}
body.dark .review-card {
    border-color: #1e293b;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

@keyframes marquee-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); } 
}
@keyframes marquee-scroll-reverse {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* --- Анимации при скролле (Scroll Reveal) --- */
@media (min-width: 768px) {
    .reveal {
        opacity: 0;
        transform: translateY(50px);
        transition: all 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
    }
    .reveal.active {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Магнитные кнопки --- */
.magnetic {
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.6s;
}