/* === STYLE.CSS ===
 * /assets/css/style.css
 * НАЗНАЧЕНИЕ: Главный файл стилей - CSS переменные, база, типографика
 * СВЯЗИ: index.php, components.css, animations.css
 * РАЗМЕР: ~600 строк
 */

/* ============================================
 * 1. CSS ПЕРЕМЕННЫЕ
 * ============================================ */

:root {
    /* === Основные цвета платформы === */
    --color-white: #FFFFFF;
    --color-gold: #FFD700;
    --color-gold-light: rgba(255, 215, 0, 0.15);
    --color-gold-dark: #D4A800;
    --color-blue: #5B9FE6;
    --color-blue-light: rgba(74, 144, 217, 0.15);
    --color-blue-dark: #3B82F6;

    /* === Фоны (dark по умолчанию) === */
    --bg-primary: #0F0F0F;
    --bg-secondary: #1A1A1A;
    --bg-card: #1E1E1E;
    --bg-dark: #0A0A0A;
    --bg-overlay: rgba(0, 0, 0, 0.7);

    /* === Текст === */
    --text-primary: #E8E8E8;
    --text-secondary: #A0A0A0;
    --text-muted: #707070;
    --text-light: #FFFFFF;

    /* === Границы === */
    --border-color: #2A2A2A;

    /* === Статусы === */
    --color-success: #10B981;
    --color-success-light: rgba(16, 185, 129, 0.15);
    --color-warning: #F59E0B;
    --color-warning-light: rgba(245, 158, 11, 0.15);
    --color-error: #EF4444;
    --color-error-light: rgba(239, 68, 68, 0.15);
    --color-info: #3B82F6;
    --color-info-light: rgba(59, 130, 246, 0.15);

    /* === Градиенты === */
    --gradient-gold: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    --gradient-blue: linear-gradient(135deg, #4A90D9 0%, #2563EB 100%);
    --gradient-spiritual: linear-gradient(135deg, #FFD700 0%, #4A90D9 100%);
    --gradient-card: linear-gradient(135deg, #1E1E1E 0%, #252525 100%);

    /* === Тени === */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 4px 15px rgba(255, 215, 0, 0.2);
    --shadow-blue: 0 4px 15px rgba(74, 144, 217, 0.2);

    /* === Типографика === */
    --font-heading: 'Cormorant Garamond', 'Georgia', serif;
    --font-body: 'Crimson Text', 'Georgia', serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* === Размеры шрифтов === */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;      /* 48px */

    /* === Отступы === */
    --spacing-xs: 0.25rem;  /* 4px */
    --spacing-sm: 0.5rem;   /* 8px */
    --spacing-md: 1rem;     /* 16px */
    --spacing-lg: 1.5rem;   /* 24px */
    --spacing-xl: 2rem;     /* 32px */
    --spacing-2xl: 3rem;    /* 48px */
    --spacing-3xl: 4rem;    /* 64px */

    /* === Радиусы === */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* === Переходы === */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* === Z-индексы === */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal-backdrop: 900;
    --z-modal: 1000;
    --z-toast: 1100;
}

/* Light theme + theme icons -> theme.css */

/* ============================================
 * 2. СБРОС И БАЗОВЫЕ СТИЛИ
 * ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
 * 3. ТИПОГРАФИКА
 * ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--text-4xl);
    font-weight: 700;
}

h2 {
    font-size: var(--text-3xl);
}

h3 {
    font-size: var(--text-2xl);
}

h4 {
    font-size: var(--text-xl);
}

h5 {
    font-size: var(--text-lg);
}

h6 {
    font-size: var(--text-base);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-blue-dark);
    text-decoration: underline;
}

strong, b {
    font-weight: 600;
}

small {
    font-size: var(--text-sm);
}

/* ============================================
 * 4. ЛЕЙАУТ
 * ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-sm {
    max-width: 640px;
}

.container-md {
    max-width: 768px;
}

.container-lg {
    max-width: 1024px;
}

.container-xl {
    max-width: 1280px;
}

/* Flex утилиты */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

/* Grid */
.grid {
    display: grid;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================
 * 5. ФОРМЫ
 * ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-primary);
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input.error {
    border-color: var(--color-error);
}

.form-error {
    font-size: var(--text-sm);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Чекбоксы и радио */
.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-checkbox input,
.form-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-gold);
}

/* ============================================
 * 6. КНОПКИ
 * ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 48px;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Варианты кнопок */
.btn-primary {
    color: var(--text-primary);
    background: var(--gradient-gold);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
    color: var(--color-white);
    background: var(--gradient-blue);
    box-shadow: var(--shadow-blue);
}

.btn-secondary:hover {
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4);
}

.btn-outline {
    color: var(--color-blue);
    background: transparent;
    border: 2px solid var(--color-blue);
}

.btn-outline:hover {
    color: var(--color-white);
    background: var(--color-blue);
}

.btn-ghost {
    color: var(--text-secondary);
    background: transparent;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

/* Размеры кнопок */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--text-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-lg);
    min-height: 56px;
}

.btn-block {
    width: 100%;
}

/* ============================================
 * 7. КАРТОЧКИ
 * ============================================ */

.card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-gold {
    border: 2px solid var(--color-gold);
    box-shadow: var(--shadow-gold);
}

.card-blue {
    border: 2px solid var(--color-blue);
    box-shadow: var(--shadow-blue);
}

.card-header {
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: 0;
}

.card-body {
    /* Основное содержимое */
}

.card-footer {
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* ============================================
 * 8. НАВИГАЦИЯ
 * ============================================ */

.navbar {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar-brand:hover {
    text-decoration: none;
}

.navbar-brand .logo-icon {
    width: 40px;
    height: 40px;
    color: var(--color-gold);
}

.nav-menu {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    list-style: none;
    max-width: 700px;
    justify-content: center;
}

.nav-item {
    /* Элемент меню */
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link span {
    font-size: var(--text-sm);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
    text-decoration: none;
}

.nav-link.active {
    color: var(--color-blue);
    background: var(--color-blue-light);
    font-weight: 500;
}

.nav-link .icon {
    width: 20px;
    height: 20px;
}

/* ============================================
 * 9. УТИЛИТЫ
 * ============================================ */

/* Отступы */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-0 { padding: 0; }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

/* Текст */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }

.text-muted { color: var(--text-muted); }
.text-primary { color: var(--text-primary); }
.text-gold { color: var(--color-gold-dark); }
.text-blue { color: var(--color-blue); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }

.font-heading { font-family: var(--font-heading); }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }

/* Видимость */
.hidden { display: none !important; }
.visible { display: block !important; }
.mobile-only { display: none; }
.desktop-only { display: block; }

/* Скрытие элементов */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Скролл */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* ============================================
 * 10. АДАПТИВНОСТЬ
 * ============================================ */

/* Компактное меню на средних экранах */
@media (max-width: 1200px) {
    .nav-menu {
        max-width: calc(100vw - 350px);
    }

    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .nav-link span {
        font-size: 12px;
    }
}

@media (max-width: 1024px) {
    .nav-menu {
        max-width: calc(100vw - 300px);
    }

    /* Скрываем текст, оставляем только иконки */
    .nav-link span {
        display: none;
    }

    .nav-link {
        padding: var(--spacing-sm);
    }

    .nav-link .icon {
        width: 22px;
        height: 22px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    h1 {
        font-size: var(--text-3xl);
    }

    h2 {
        font-size: var(--text-2xl);
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    /* Мобильная навигация — нижняя панель как в приложениях */
    body.authenticated .nav-menu[data-auth="user"] {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        display: flex !important;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: space-around;
        max-width: 100% !important;
        width: 100%;
        overflow-x: auto;
        background: var(--bg-card);
        border-top: 1px solid var(--border-color);
        padding: var(--spacing-sm) 0;
        padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom, 0px));
        z-index: 1000;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.15);
    }

    body.authenticated .nav-menu .nav-link {
        flex-direction: column;
        padding: var(--spacing-xs);
        font-size: 10px;
        gap: 2px;
        text-align: center;
        min-width: 50px;
    }

    body.authenticated .nav-menu .nav-link .icon {
        width: 22px;
        height: 22px;
        margin: 0 auto;
    }

    body.authenticated .nav-menu .nav-link span {
        display: block;
        white-space: nowrap;
        font-size: 9px;
        max-width: 52px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* Отступы: сверху для sticky header (48px), снизу для bottom nav */
    body.authenticated main {
        padding-bottom: 70px;
    }

    /* Мобильный хедер: компактная строка logo + theme + avatar */
    body.authenticated .navbar {
        position: sticky;
        top: 0;
        z-index: 200;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border-color);
        padding: 0;
    }

    body.authenticated .navbar .navbar-content {
        height: 48px;
        padding: 0 var(--spacing-sm);
        flex-wrap: nowrap;
    }

    /* Логотип - компактный */
    body.authenticated .navbar .navbar-brand {
        display: flex !important;
        font-size: var(--text-base);
        gap: var(--spacing-xs);
    }

    body.authenticated .navbar .navbar-brand .logo-icon {
        font-size: 1.4rem;
    }

    body.authenticated .navbar .navbar-brand .logo-text {
        font-size: 0.85rem;
    }

    /* Тема - всегда видна */
    body.authenticated .navbar .aci-theme-btn {
        display: inline-flex !important;
        width: 36px;
        height: 36px;
        padding: 0;
        align-items: center;
        justify-content: center;
    }

    /* User menu - только аватар */
    body.authenticated .navbar .user-menu {
        display: flex !important;
        gap: var(--spacing-xs);
    }

    body.authenticated .navbar .user-menu .nav-link[data-page="ai"] {
        display: none;
    }

    body.authenticated .user-dropdown-toggle .user-name,
    body.authenticated .user-dropdown-toggle .subscription-badge {
        display: none;
    }

    body.authenticated .user-dropdown-toggle .user-avatar {
        width: 32px;
        height: 32px;
    }

    body.authenticated .user-dropdown-toggle .user-avatar img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
    }

    /* Header управляется через .navbar выше */

    /* User menu на мобильных - только аватар */
    body.authenticated .user-menu {
        display: flex !important;
    }

    body.authenticated .user-menu .nav-link[data-page="ai"] {
        display: none; /* AI перенесен в нижнюю панель */
    }

    body.authenticated .user-dropdown-toggle .user-name,
    body.authenticated .user-dropdown-toggle .subscription-badge {
        display: none;
    }

    body.authenticated .user-dropdown-toggle .user-avatar {
        width: 36px;
        height: 36px;
        font-size: var(--text-base);
    }

    /* AI кнопка в нижней панели */
    body.authenticated .mobile-nav-ai {
        display: flex !important;
    }

    /* Показываем mobile-only элементы */
    .mobile-only {
        display: flex !important;
    }

    .desktop-only {
        display: none !important;
    }

    .btn-block {
        width: 100%;
    }
}

@media (max-width: 640px) {
    h1 { font-size: var(--text-2xl); }
    h2 { font-size: var(--text-xl); }
    h3 { font-size: var(--text-lg); }
}

@media (max-width: 480px) {
    .card {
        padding: var(--spacing-md);
    }

    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--text-base);
    }
}

/* ============================================
 * FOCUS-VISIBLE - keyboard accessibility
 * ============================================ */

*:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.15);
}

*:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================
 * STAGGERED ANIMATIONS
 * ============================================ */

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.stagger-item {
    opacity: 0;
    animation: fadeInUp 0.4s ease forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.4s; }
.stagger-item:nth-child(9) { animation-delay: 0.45s; }
.stagger-item:nth-child(10) { animation-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
    .stagger-item {
        opacity: 1;
        animation: none;
    }
}