/* KRIT Systems - Custom Styles */

/* Цветовая палитра - Light Mode */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-section: #f3f4f6;

    /* Dark mode переменные */
    --bg-body: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f9fafb;
    --bg-header: rgba(255, 255, 255, 0.95);
    --bg-footer: #111827;
    --bg-modal: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Animation easing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-white: #0f172a;
    --bg-light: #1e293b;
    --bg-section: #1e293b;
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-header: rgba(15, 23, 42, 0.95);
    --bg-footer: #020617;
    --bg-modal: #1e293b;
    --text-dark: #f1f5f9;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-gray: #94a3b8;
    --text-light: #64748b;
    --border-color: #334155;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-body);
    transition: background-color 0.4s var(--ease-smooth), color 0.4s var(--ease-smooth);
    overflow-x: hidden;
}

/* ========================================
   DARK MODE СТИЛИ
   ======================================== */

/* Header */
[data-theme="dark"] header {
    background-color: var(--bg-header);
}

[data-theme="dark"] header .text-gray-900,
[data-theme="dark"] header a.text-gray-600 {
    color: var(--text-primary);
}

[data-theme="dark"] header a.text-gray-600:hover {
    color: var(--primary-light);
}

/* Hero */
[data-theme="dark"] #hero {
    background: linear-gradient(to bottom right, var(--bg-section), var(--bg-body));
}

[data-theme="dark"] #hero .bg-white {
    background-color: var(--bg-card);
}

/* Sections */
[data-theme="dark"] section.bg-white {
    background-color: var(--bg-body);
}

[data-theme="dark"] section.bg-gray-50 {
    background-color: var(--bg-section);
}

/* Text colors */
[data-theme="dark"] .text-gray-900 {
    color: var(--text-primary);
}

[data-theme="dark"] .text-gray-700 {
    color: var(--text-secondary);
}

[data-theme="dark"] .text-gray-600 {
    color: var(--text-muted);
}

[data-theme="dark"] .text-gray-500 {
    color: var(--text-light);
}

[data-theme="dark"] .text-gray-400 {
    color: var(--text-light);
}

/* Cards */
[data-theme="dark"] .bg-gray-50 {
    background-color: var(--bg-card);
}

[data-theme="dark"] .group.bg-gray-50:hover {
    background-color: var(--bg-card-hover);
}

[data-theme="dark"] .bg-white {
    background-color: var(--bg-card);
}

/* Borders */
[data-theme="dark"] .border-gray-200 {
    border-color: var(--border-color);
}

[data-theme="dark"] .border-t {
    border-color: var(--border-color);
}

/* Footer */
[data-theme="dark"] footer {
    background-color: var(--bg-footer);
}

[data-theme="dark"] footer .bg-gray-800 {
    background-color: #1e293b;
}

/* Modal */
[data-theme="dark"] #messenger-modal .bg-white {
    background-color: var(--bg-modal);
}

[data-theme="dark"] #messenger-modal .text-gray-900 {
    color: var(--text-primary);
}

/* Burger menu */
[data-theme="dark"] #burger-menu span {
    background-color: var(--text-muted);
}

/* Mobile menu */
[data-theme="dark"] #mobile-menu a {
    color: var(--text-muted);
}

/* ========================================
   ПЕРЕКЛЮЧАТЕЛИ ТЕМЫ И ЯЗЫКА
   ======================================== */

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    overflow: hidden;
    position: relative;
}

.theme-toggle:hover {
    background-color: var(--bg-card-hover);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    transition: transform 0.5s var(--ease-out-expo), opacity 0.3s ease;
}

/* Анимация иконок темы */
.theme-toggle .sun-icon {
    animation: themeIconIn 0.5s var(--ease-out-expo);
}

.theme-toggle .moon-icon {
    animation: themeIconIn 0.5s var(--ease-out-expo);
}

@keyframes themeIconIn {
    from {
        transform: rotate(-90deg) scale(0);
        opacity: 0;
    }
    to {
        transform: rotate(0) scale(1);
        opacity: 1;
    }
}

.lang-toggle {
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
}

.lang-toggle:hover {
    background-color: var(--bg-card-hover);
    transform: scale(1.05);
}

.lang-toggle:active {
    transform: scale(0.95);
}

.controls-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Кастомные утилиты */
.text-primary { color: var(--primary); }
.bg-primary { background-color: var(--primary); }
.bg-primary:hover { background-color: var(--primary-dark); }
.border-primary { border-color: var(--primary); }

/* ========================================
   HEADER — SCROLL ЭФФЕКТ
   ======================================== */

header {
    transition: box-shadow 0.4s var(--ease-smooth), background-color 0.4s var(--ease-smooth);
}

header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ========================================
   БУРГЕР-МЕНЮ
   ======================================== */

#burger-menu span {
    transition: transform 0.35s var(--ease-out-expo), opacity 0.25s ease;
}

#burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#burger-menu.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Мобильное меню */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s var(--ease-out-expo), opacity 0.35s ease;
}

#mobile-menu:not(.hidden) {
    max-height: 400px;
    opacity: 1;
}

#mobile-menu a {
    transition: color 0.25s ease, transform 0.25s ease;
}

#mobile-menu a:hover {
    transform: translateX(4px);
}

/* ========================================
   АДАПТИВНОСТЬ
   ======================================== */

@media (max-width: 640px) {
    #messenger-modal > div:last-child {
        margin: 1rem;
        padding: 1.5rem;
    }
}

@media (max-width: 360px) {
    h1 { font-size: 1.875rem !important; line-height: 1.2 !important; }
    h2 { font-size: 1.5rem !important; }
    .btn-primary, button[data-messenger-modal] {
        padding: 0.75rem 1.5rem !important;
        font-size: 1rem !important;
    }
    #hero h1 .pl-20 { padding-left: 2.5rem !important; }
}

@media (max-width: 640px) {
    section { padding: 3rem 0; }
    #hero h1 { font-size: 2rem; }
    #hero p { font-size: 1rem; }
    .hero-image {
        max-width: 320px;
        width: 100% !important;
        animation: none !important;
    }
    #back-to-top svg {
        animation: none !important;
    }
    #services .grid { grid-template-columns: 1fr; }
    #portfolio .grid { grid-template-columns: 1fr; }
    #contacts .grid { grid-template-columns: repeat(2, 1fr); }
    footer .flex { flex-direction: column; text-align: center; gap: 1.5rem; }
}

@media (min-width: 640px) and (max-width: 768px) {
    #services .grid { grid-template-columns: repeat(2, 1fr); }
    #portfolio .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-height: 500px) and (orientation: landscape) {
    #hero { min-height: auto; padding: 6rem 0 3rem; }
    #hero h1 { font-size: 1.75rem; }
}

/* ========================================
   ПЛАВНОЕ ПОЯВЛЕНИЕ БЛОКОВ (АНИМАЦИИ)
   ======================================== */

/* Базовое состояние — скрыто */
[data-animate] {
    opacity: 0;
    transition-property: opacity, transform;
    transition-duration: 0.7s;
    transition-timing-function: var(--ease-out-expo);
    will-change: opacity, transform;
}

/* Fade Up — появление снизу вверх */
[data-animate="fade-up"] {
    transform: translateY(30px);
}

/* Fade Down — появление сверху вниз */
[data-animate="fade-down"] {
    transform: translateY(-30px);
}

/* Fade Left — появление слева */
[data-animate="fade-left"] {
    transform: translateX(40px);
}

/* Fade Right — появление справа */
[data-animate="fade-right"] {
    transform: translateX(-40px);
}

/* Fade Scale — появление с масштабом */
[data-animate="fade-scale"] {
    transform: scale(0.92);
}

/* Hero специальные анимации */
[data-animate="hero-title"] {
    transform: translateY(20px);
}

[data-animate="hero-subtitle"] {
    transform: translateY(20px);
}

[data-animate="hero-buttons"] {
    transform: translateY(20px);
}

[data-animate="hero-image"] {
    transform: translateX(30px) scale(0.95);
}

/* Видимое состояние — ВСЕ анимации */
[data-animate].visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* ========================================
   АКТИВНОЕ МЕНЮ
   ======================================== */

.nav-link {
    position: relative;
    transition: color 0.3s var(--ease-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.35s var(--ease-out-expo), left 0.35s var(--ease-out-expo);
}

.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    width: 100%;
    left: 0;
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

/* ========================================
   КАРТОЧКИ — HOVER ПОДЪЁМ
   ======================================== */

/* Карточки услуг */
#services .group {
    transition: all 0.4s var(--ease-out-expo);
}

#services .group:hover {
    transform: translateY(-6px);
}

/* Иконки в карточках услуг */
#services .group .w-14 svg {
    transition: transform 0.4s var(--ease-out-expo);
}

#services .group:hover .w-14 svg {
    transform: scale(1.15) rotate(-5deg);
}

/* Карточки портфолио */
#portfolio .group {
    transition: all 0.4s var(--ease-out-expo);
}

#portfolio .group:hover {
    transform: translateY(-6px);
}

/* Иконки в портфолио */
#portfolio .group svg {
    transition: transform 0.5s var(--ease-out-expo);
}

#portfolio .group:hover svg {
    transform: scale(1.1);
}

/* ========================================
   КАРУСЕЛЬ ОТЗЫВОВ
   ======================================== */

.reviews-track {
    transition: transform 0.5s var(--ease-out-expo);
}

.review-slide {
    min-height: 0;
}

/* Стрелки */
.review-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.review-arrow:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.review-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

.review-arrow-prev {
    left: -8px;
}

.review-arrow-next {
    right: -8px;
}

@media (min-width: 768px) {
    .review-arrow-prev { left: -22px; }
    .review-arrow-next { right: -22px; }
}

@media (max-width: 640px) {
    .review-arrow {
        width: 36px;
        height: 36px;
    }
    .review-arrow-prev { left: -4px; }
    .review-arrow-next { right: -4px; }
}

/* Точки-индикаторы */
.review-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    padding: 0;
}

.review-dot:hover {
    background: var(--text-light);
    transform: scale(1.2);
}

.review-dot.active {
    background: var(--primary);
    transform: scale(1.15);
}

/* Серые звёзды — dark mode */
[data-theme="dark"] .text-gray-300 {
    color: #475569;
}

/* Карточки контактов */
#contacts .group {
    transition: all 0.4s var(--ease-out-expo);
}

#contacts .group:hover {
    transform: translateY(-4px);
}

/* Иконки контактов */
#contacts .group svg {
    transition: transform 0.4s var(--ease-out-expo);
}

#contacts .group:hover svg {
    transform: scale(1.15);
}

/* ========================================
   CTA КНОПКИ — ПУЛЬСАЦИЯ И HOVER
   ======================================== */

button[data-messenger-modal],
a[href="#services"] {
    transition: all 0.3s var(--ease-smooth);
}

button[data-messenger-modal]:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px -10px rgba(99, 102, 241, 0.5);
}

button[data-messenger-modal]:active,
a[href="#services"]:active {
    transform: translateY(0) scale(0.98);
}

/* Стрелка в кнопке — анимация при hover */
button[data-messenger-modal] svg,
a[href="#services"] svg {
    transition: transform 0.3s var(--ease-out-expo);
}

button[data-messenger-modal]:hover svg {
    transform: translateX(4px);
}

a[href="#services"]:hover svg {
    transform: translateY(3px);
}

/* ========================================
   PROGRESS BAR
   ======================================== */

#progress-bar {
    transition: width 0.15s linear;
    transform-origin: left;
}

/* ========================================
   КНОПКА НАВЕРХ
   ======================================== */

#back-to-top {
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px) scale(0.8);
    transition: opacity 0.4s var(--ease-out-expo), visibility 0.4s var(--ease-out-expo), box-shadow 0.4s var(--ease-out-expo);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

#back-to-top:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 25px -5px rgba(99, 102, 241, 0.4);
}

#back-to-top:active {
    transform: translateY(0) scale(0.95);
}

/* Стрелка пульсирует */
#back-to-top svg {
    animation: floatArrow 2s ease-in-out infinite;
}

@keyframes floatArrow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* ========================================
   МОДАЛКА — АНИМАЦИЯ
   ======================================== */

#messenger-modal {
    transition: opacity 0.3s ease;
}

#messenger-modal.modal-hidden {
    opacity: 0;
    pointer-events: none;
}

#messenger-modal.modal-visible {
    opacity: 1;
    pointer-events: auto;
}

/* Оверлей */
#modal-overlay {
    transition: opacity 0.3s ease;
}

/* Контент модалки */
#messenger-modal > .relative {
    transition: transform 0.4s var(--ease-out-back), opacity 0.3s ease;
}

#messenger-modal.modal-hidden > .relative {
    transform: scale(0.9) translateY(20px);
    opacity: 0;
}

#messenger-modal.modal-visible > .relative {
    transform: scale(1) translateY(0);
    opacity: 1;
}

/* Кнопки в модалке */
#messenger-modal a {
    transition: all 0.25s var(--ease-smooth);
}

#messenger-modal a:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px -5px rgba(0, 0, 0, 0.2);
}

#messenger-modal a:active {
    transform: translateY(0) scale(0.98);
}

/* Кнопка закрытия модалки */
#close-modal {
    transition: all 0.25s ease;
}

#close-modal:hover {
    transform: rotate(90deg) scale(1.1);
}

/* ========================================
   HERO — ИЛЛЮСТРАЦИЯ И ДЕКОР
   ======================================== */

#hero .blur-3xl {
    transition: transform 1.5s var(--ease-out-expo);
}

/* Hero — обёртка изображения */
.hero-image-wrapper {
    display: flex;
    justify-content: center;
}

@media (min-width: 768px) {
    .hero-image-wrapper {
        justify-content: flex-start;
        margin-left: 2rem;
    }
}

@media (min-width: 1024px) {
    .hero-image-wrapper {
        margin-left: 4rem;
    }
}

/* Hero — изображение */
.hero-image {
    animation: heroFloat 6s ease-in-out infinite;
    will-change: transform;
    mask-image: radial-gradient(ellipse 75% 70% at 55% 45%, black 50%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 75% 70% at 55% 45%, black 50%, transparent 75%);
}

[data-theme="dark"] .hero-image {
    mask-image: radial-gradient(ellipse 68% 68% at 50% 50%, black 38%, transparent 68%);
    -webkit-mask-image: radial-gradient(ellipse 68% 68% at 50% 50%, black 38%, transparent 68%);
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Hero — фоновый градиент */
.hero-bg-gradient {
    background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(99, 102, 241, 0.06) 0%, transparent 70%),
                linear-gradient(to bottom, #f9fafb, #ffffff);
}

[data-theme="dark"] .hero-bg-gradient {
    background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(99, 102, 241, 0.1) 0%, transparent 70%),
                linear-gradient(to bottom, var(--bg-section), var(--bg-body));
}

/* ========================================
   О НАС — ИЗОБРАЖЕНИЕ
   ======================================== */

.about-image {
    mask-image: radial-gradient(ellipse 65% 60% at 50% 50%, black 50%, transparent 68%);
    -webkit-mask-image: radial-gradient(ellipse 65% 60% at 50% 50%, black 50%, transparent 68%);
    transform: scale(1.15);
    transition: transform 0.5s var(--ease-out-expo);
}

.about-image:hover {
    transform: scale(1.18);
}

/* ========================================
   СТАТИСТИКА — СЧЁТЧИК
   ======================================== */

.stat-number {
    display: inline-block;
    transition: transform 0.3s var(--ease-out-expo);
}

/* ========================================
   FOOTER — HOVER ЭФФЕКТЫ
   ======================================== */

footer a {
    transition: all 0.3s var(--ease-smooth);
}

footer .bg-gray-800 {
    transition: all 0.3s var(--ease-smooth);
}

footer a:hover .bg-gray-800,
footer a .bg-gray-800:hover {
    transform: translateY(-2px);
}

/* ========================================
   PREFERS REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    [data-animate] {
        opacity: 1 !important;
        transform: none !important;
    }
}