/**
 * 📐 BASE CSS ДЛЯ TELEGRAM MINI APP (🔧 ИСПРАВЛЕНЫ VIEWPORT ФОРМУЛЫ)
 * Базовая типографика, сетка и общие стили компонентов
 * ✅ ИСПРАВЛЕНО: Убраны все отступы для хедеров
 * ✅ ИСПРАВЛЕНО: Контент начинается с самого верха
 * 🔧 ИСПРАВЛЕНО: Формулы viewport используют корректные размеры компонентов
 */

/* ============================================================================
   ✏️ БАЗОВАЯ ТИПОГРАФИКА
   ============================================================================ */

/* 🔧 FIX: Ensure html and body take full height for proper flex layout */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    /* 📱 PHONE-FRAME: Фон страницы для контраста */
    background: var(--background, #F5F2EC);
    padding: 20px 20px 0;
    min-height: 100vh;
    /* 🔧 FIX: Prevent body scroll - only #page-content should scroll */
    overflow: hidden;
}

/* 📝 Заголовки */
h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    margin-bottom: var(--spacing-sm);
}

h5, h6 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    margin-bottom: var(--spacing-sm);
}

/* 📖 Параграфы и текст */
p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-normal);
}

.text-small { font-size: var(--font-size-sm); }
.text-large { font-size: var(--font-size-lg); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary-color { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-error { color: var(--error-color); }

/* ✏️ Типографические утилиты */
.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

/* 📖 Специальные текстовые стили для Анны Бусел */
.quote-text {
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-loose);
    font-style: italic;
    color: var(--text-primary);
}

.author-text {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================================================
   📏 FONT SIZE SCALING (USER PREFERENCE)
   ============================================================================ */

/* Define base font sizes that can be referenced */
:root {
    --font-size-xs-base: 12px;
    --font-size-sm-base: 14px;
    --font-size-base-base: 16px;
    --font-size-lg-base: 18px;
    --font-size-xl-base: 20px;
    --font-size-2xl-base: 24px;
    --font-size-3xl-base: 32px;
}

/* Small font scale - slightly reduced sizes */
body.font-small {
    --font-size-xs: calc(var(--font-size-xs-base) * 0.9);
    --font-size-sm: calc(var(--font-size-sm-base) * 0.9);
    --font-size-base: calc(var(--font-size-base-base) * 0.92);
    --font-size-lg: calc(var(--font-size-lg-base) * 0.92);
    --font-size-xl: calc(var(--font-size-xl-base) * 0.94);
    --font-size-2xl: calc(var(--font-size-2xl-base) * 0.94);
    --font-size-3xl: calc(var(--font-size-3xl-base) * 0.94);
}

/* Medium font scale - default (no changes) */
body.font-medium {
    /* Explicitly keep default values for clarity */
}

/* Large font scale - slightly increased sizes */
body.font-large {
    --font-size-xs: calc(var(--font-size-xs-base) * 1.1);
    --font-size-sm: calc(var(--font-size-sm-base) * 1.1);
    --font-size-base: calc(var(--font-size-base-base) * 1.08);
    --font-size-lg: calc(var(--font-size-lg-base) * 1.08);
    --font-size-xl: calc(var(--font-size-xl-base) * 1.06);
    --font-size-2xl: calc(var(--font-size-2xl-base) * 1.06);
    --font-size-3xl: calc(var(--font-size-3xl-base) * 1.06);
}

/* ============================================================================
   📱 PHONE-FRAME ДИЗАЙН (ИЗ КОНЦЕПТА)
   ============================================================================ */

/* 🔧 FIX: app-container as flex container (app-shell structure) */
.app-container {
    max-width: 480px;
    margin: 0 auto 20px;
    min-height: calc(100vh - 40px);
    background: var(--surface, #FFFFFF);
    border-radius: 20px;
    overflow: hidden; /* 🔧 FIX: Prevent container itself from scrolling */
    box-shadow: 
        0 8px 32px var(--shadow-color-strong, rgba(210, 69, 44, 0.15)),
        0 2px 8px var(--shadow-color, rgba(210, 69, 44, 0.08)),
        0 0 0 1px var(--border, #E6E0D6);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all var(--transition-normal, 0.3s ease);
}

/* 🔧 FIX: #page-content as THE SINGLE scroll container */
#page-content,
.page-content {
    flex: 1;
    min-height: 0; /* CRITICAL: allows flex item to shrink */
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    overscroll-behavior: contain;
}

/* 🔧 FIX: .content is now ONLY for padding, NOT for scroll management */
.content {
    width: 100%;
    padding: 16px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    box-sizing: border-box;
    /* NO height, NO overflow - these are handled by #page-content */
}

/* 🔧 СПЕЦИАЛЬНОЕ ИСПРАВЛЕНИЕ ДЛЯ TELEGRAM WEB APP */
/* 🔧 FIX: Removed fixed height support for Telegram - use natural scroll instead */

/* ✅ iOS ИСПРАВЛЕНИЯ */
/* 🔧 FIX: Removed fixed height overrides for iOS - natural scroll is better */

/* 📱 МОБИЛЬНАЯ АДАПТАЦИЯ */
@media (max-width: 480px) {
    body { padding: 10px 10px 0; }
    .app-container {
        max-width: none;
        margin: 0 0 10px;
        min-height: calc(100vh - 20px);
        border-radius: 16px;
    }
    .content {
        padding: 12px;
    }
}

/* 📦 Основной контент БЕЗ ОТСТУПОВ ДЛЯ ХЕДЕРОВ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
}

/* ============================================================================
   🔄 АНИМАЦИИ СТРАНИЦ
   ============================================================================ */

.page {
    flex: 1;
    padding: var(--spacing-md);
    max-width: 100%;
    margin: 0 auto;
    opacity: 1;
    transform: translateX(0);
    transition: opacity var(--duration-fast, 0.2s) ease, transform var(--duration-fast, 0.2s) ease;
}

.page-enter { opacity: 0; transform: translateX(20px); }
.page-enter-active {
    opacity: 1;
    transform: translateX(0);
    transition: opacity var(--duration-normal, 0.3s) var(--ease-out, ease-out), 
                transform var(--duration-normal, 0.3s) var(--ease-out, ease-out);
}

.page-exit { opacity: 1; transform: translateX(0); }
.page-exit-active {
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity var(--duration-fast, 0.2s) ease, 
                transform var(--duration-fast, 0.2s) ease;
}

/* ============================================================================
   📱 КОНТЕЙНЕРЫ
   ============================================================================ */

.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.container-no-padding {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

/* ============================================================================
   🎯 FLEXBOX УТИЛИТЫ
   ============================================================================ */

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-row-reverse { flex-direction: row-reverse; }
.flex-col-reverse { flex-direction: column-reverse; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }

.self-start { align-self: flex-start; }
.self-center { align-self: center; }
.self-end { align-self: flex-end; }
.self-stretch { align-self: stretch; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.flex-grow { flex-grow: 1; }
.flex-shrink { flex-shrink: 1; }
.flex-no-wrap { flex-wrap: nowrap; }
.flex-wrap { flex-wrap: wrap; }

/* ============================================================================
   📏 ОТСТУПЫ И РАЗМЕРЫ
   ============================================================================ */

/* Margin утилиты */
.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-3 { margin: var(--spacing-md); }
.m-4 { margin: var(--spacing-lg); }
.m-5 { margin: var(--spacing-xl); }
.m-6 { margin: var(--spacing-2xl); }

.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--spacing-xs); }
.ml-2 { margin-left: var(--spacing-sm); }
.ml-3 { margin-left: var(--spacing-md); }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--spacing-xs); }
.mr-2 { margin-right: var(--spacing-sm); }
.mr-3 { margin-right: var(--spacing-md); }

/* Padding утилиты */
.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-3 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-4 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-3 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-4 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }

/* ============================================================================
   📐 РАЗМЕРЫ И ПОЗИЦИОНИРОВАНИЕ
   ============================================================================ */

.w-full { width: 100%; }
.w-auto { width: auto; }
.w-fit { width: fit-content; }

.h-full { height: 100%; }
.h-auto { height: auto; }
.h-screen { height: 100vh; }
.h-fit { height: fit-content; }

.min-h-full { min-height: 100%; }
.min-h-screen { min-height: 100vh; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: var(--z-index-nav); }
.z-50 { z-index: var(--z-index-header); }

/* ============================================================================
   🎨 ВИЗУАЛЬНЫЕ УТИЛИТЫ
   ============================================================================ */

.visible { visibility: visible; }
.invisible { visibility: hidden; }
.hidden { display: none; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }

.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-round); }

.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-primary { box-shadow: var(--shadow-primary); }

.border-0 { border: 0; }
.border { border: 1px solid var(--text-muted); }
.border-primary { border: 1px solid var(--primary-color); }

.border-t { border-top: 1px solid var(--text-muted); }
.border-b { border-bottom: 1px solid var(--text-muted); }
.border-l { border-left: 1px solid var(--text-muted); }
.border-r { border-right: 1px solid var(--text-muted); }

/* ============================================================================
   🎭 ИНТЕРАКТИВНЫЕ СОСТОЯНИЯ
   ============================================================================ */

.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

.disabled {
    opacity: var(--disabled-opacity);
    cursor: not-allowed;
    pointer-events: none;
}

@media (hover: hover) {
    .hover\\:opacity-80:hover { opacity: var(--hover-opacity); }
    .hover\\:shadow-lg:hover { box-shadow: var(--shadow-lg); }
    .hover\\:shadow-primary:hover { box-shadow: var(--shadow-primary); }
}

.active\\:opacity-60:active { opacity: var(--active-opacity); }

/* ============================================================================
   🔄 АНИМАЦИИ И ПЕРЕХОДЫ
   ============================================================================ */

.transition { transition: all var(--duration-normal) var(--ease-out); }
.transition-fast { transition: all var(--duration-fast) var(--ease-out); }
.transition-slow { transition: all var(--duration-slow) var(--ease-out); }

.transition-colors { transition: color var(--duration-normal) var(--ease-out), 
                                background-color var(--duration-normal) var(--ease-out); }
.transition-transform { transition: transform var(--duration-normal) var(--ease-out); }
.transition-opacity { transition: opacity var(--duration-normal) var(--ease-out); }

.scale-95 { transform: scale(0.95); }
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }

.rotate-180 { transform: rotate(180deg); }
.rotate-45 { transform: rotate(45deg); }

/* ============================================================================
   🎯 СПЕЦИАЛЬНЫЕ УТИЛИТЫ ДЛЯ TELEGRAM MINI APP
   ============================================================================ */

.scroll-smooth {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.no-select {
    -webkit-user-select: none;
    user-select: none;
}

.text-select {
    -webkit-user-select: text;
    user-select: text;
}

.safe-top { padding-top: var(--safe-area-top); }
.safe-bottom { padding-bottom: var(--safe-area-bottom); }

.full-viewport {
    height: 100vh;
    height: var(--tg-viewport-height, 100vh);
}

.hardware-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* ============================================================================
   📱 АДАПТИВНЫЕ УТИЛИТЫ
   ============================================================================ */

@media (max-width: 480px) {
    .mobile\\:hidden { display: none; }
    .mobile\\:block { display: block; }
    .mobile\\:flex { display: flex; }
    .mobile\\:text-sm { font-size: var(--font-size-sm); }
    .mobile\\:px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
}

@media (min-width: 481px) {
    .desktop\\:max-w-md { max-width: 480px; }
    .desktop\\:mx-auto { margin-left: auto; margin-right: auto; }
}

/* ============================================================================
   📱 PHONE-FRAME ДОПОЛНИТЕЛЬНЫЕ СТИЛИ
   ============================================================================ */

@media (min-width: 768px) {
    .app-container:hover {
        transform: translateY(-2px);
        box-shadow: 
            0 12px 40px var(--shadow-color-strong, rgba(210, 69, 44, 0.15)),
            0 4px 12px var(--shadow-color, rgba(210, 69, 44, 0.08)),
            0 0 0 1px var(--border, #E6E0D6);
    }
}

@media (prefers-color-scheme: dark) {
    .app-container {
        box-shadow: 
            0 8px 32px rgba(232, 90, 66, 0.20),
            0 2px 8px rgba(232, 90, 66, 0.12),
            0 0 0 1px #404040;
    }
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background, #F5F2EC);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 768px) {
    .loading-screen {
        max-width: 480px;
        margin: 0 auto;
        border-radius: 20px;
        top: 40px;
        bottom: 40px;
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        width: 480px;
    }
}

/* ============================================================================
   🚨 КРИТИЧЕСКИЕ ОШИБКИ (Production Error Handling)
   ============================================================================ */

.critical-error {
    text-align: center;
    padding: 40px 20px;
    max-width: 400px;
    margin: 0 auto;
    background: var(--bg-secondary, #FFFFFF);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.critical-error .error-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.critical-error h2 {
    color: var(--accent-error, #FF4747);
    margin-bottom: 16px;
    font-size: 24px;
    font-weight: 600;
}

.critical-error p {
    color: var(--text-secondary, #666666);
    margin-bottom: 32px;
    line-height: 1.5;
}

.critical-error .error-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.critical-error .retry-button,
.critical-error .support-button {
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.critical-error .retry-button {
    background: var(--accent-primary, #2C2C2C);
    color: white;
}

.critical-error .retry-button:hover {
    background: var(--accent-primary-hover, #1a1a1a);
    transform: translateY(-1px);
}

.critical-error .support-button {
    background: var(--bg-tertiary, #F0F0F0);
    color: var(--text-primary, #2C2C2C);
}

.critical-error .support-button:hover {
    background: var(--bg-quaternary, #E8E8E8);
    transform: translateY(-1px);
}