/* ==========================================================================
   AI Scenario Generator - Main Styles
   ========================================================================== */

/* Variables
   ========================================================================== */
:root {
	/* Colors */
	--color-background: #e4e4e484;
	--color-text-primary: #27272a;
	--color-text-secondary: #a1a1aa;
	--color-white: #fff;
	--color-border: #d4d4d8;
	
	/* Button gradient colors */
	--gradient-primary: linear-gradient(-45deg, 
		#667eea 0%, 
		#764ba2 25%, 
		#f093fb 50%, 
		#f5576c 75%, 
		#4facfe 100%);
	
	/* Spacing */
	--spacing-xs: 8px;
	--spacing-sm: 16px;
	--spacing-md: 22px;
	--spacing-lg: 32px;
	
	/* Typography */
	--font-family: 'Inter', 'Helvetica Neue', sans-serif;
	--font-size-base: 16px;
	--font-size-lg: 24px;
	--font-weight-normal: 400;
	--font-weight-medium: 500;
	--font-weight-semibold: 600;
	--font-weight-bold: 700;
	
	/* Layout */
	--container-max-width: 460px;
	--border-radius: 8px;
	--border-radius-lg: 16px;
	--border-radius-xl: 64px;
}

/* Base Layout
   ========================================================================== */
body {
	height: 100vh;
	background: var(--color-background);
	padding: var(--spacing-sm);
	overflow: hidden;
	overflow-x: hidden;
	overflow-y: auto;
	font-family: var(--font-family);
	font-size: var(--font-size-base);
	line-height: 1.5;
	color: var(--color-text-primary);
	display: flex;
	justify-content: center;
	align-items: flex-start;
}

/* Container
   ========================================================================== */
.container {
	width: 100%;
	max-width: var(--container-max-width);
	padding: var(--spacing-md) 0;
	flex-shrink: 0;
}

/* Desktop Layout Improvements
   ========================================================================== */
@media (min-width: 768px) {
	body {
		padding: 0 var(--spacing-lg); /* Убираем вертикальные отступы */
		align-items: center;
	}
	
	.btn {
		margin-top: 0 !important; /* Убираем верхний отступ у кнопки */
	}
}

/* Typography
   ========================================================================== */
.title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	text-align: center;
	margin: 0 0 var(--spacing-md) 0;
}

/* Form
   ========================================================================== */
.form {
	display: flex;
	flex-direction: column;
	gap: calc(var(--spacing-sm) + 18px); /* Дополнительное место для ошибок */
}

.form-field {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xs);
	padding: var(--spacing-sm);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius-lg);
	position: relative;
	transition: border-color 0.3s ease;
}

.form-field--error {
	border-color: #ef4444;
	box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-label {
	font-weight: var(--font-weight-medium);
	color: var(--color-text-primary);
}

.form-input {
	min-height: 80px;
	padding: 0;
	border: none;
	outline: none;
	resize: none;
	background: transparent;
	font-family: inherit;
	font-size: inherit;
	color: var(--color-text-primary);
}

.form-input--single {
	min-height: 40px;
	height: 40px;
	padding: var(--spacing-xs) 0;
	line-height: 1.4;
}

.form-input--large {
	min-height: 120px;
}

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

/* Validation Error Messages
   ========================================================================== */
.form-error {
	position: absolute;
	bottom: -20px;
	left: var(--spacing-sm);
	right: var(--spacing-sm);
	color: #ef4444;
	font-size: 12px;
	font-weight: var(--font-weight-medium);
	opacity: 0;
	transform: translateY(-5px);
	transition: all 0.3s ease;
	pointer-events: none;
	z-index: 10;
}

.form-error--visible {
	opacity: 1;
	transform: translateY(0);
}

.form-field--error .form-error {
	opacity: 1;
	transform: translateY(0);
}

/* Компактное поле для однострочного ввода */
.form-field:has(.form-input--single) {
	padding: var(--spacing-sm) var(--spacing-sm) calc(var(--spacing-sm) + 4px) var(--spacing-sm);
}

/* Fallback для браузеров без поддержки :has() */
.form-field--compact {
	padding: var(--spacing-sm) var(--spacing-sm) calc(var(--spacing-sm) + 4px) var(--spacing-sm);
}

/* Button
   ========================================================================== */
.btn {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--spacing-xs);
	padding: var(--spacing-sm) var(--spacing-md);
	border: none;
	border-radius: var(--border-radius-xl);
	font-family: inherit;
	font-size: 14px;
	font-weight: var(--font-weight-semibold);
	cursor: pointer;
	transition: none;
	outline: none;
	margin-top: var(--spacing-sm);
	align-self: center;
	min-width: 195px;
}

.btn--primary {
	background: var(--gradient-primary);
	background-size: 400% 400%;
	animation: gradientShift 12s ease-in-out infinite;
	color: var(--color-white);
	transition: filter 0.3s ease;
}

.btn--primary:hover {
	filter: brightness(1.15) saturate(1.1);
}

.btn__icon {
	width: 24px;
	height: 24px;
	flex-shrink: 0;
}

.btn__text {
	margin: 0;
}

/* Animations
   ========================================================================== */
@keyframes gradientShift {
	0% {
		background-position: 0% 50%;
	}
	50% {
		background-position: 100% 50%;
	}
	100% {
		background-position: 0% 50%;
	}
}

/* Loading Screen
   ========================================================================== */
.loading-screen {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-background);
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1000;
}

.loading-content {
	text-align: center;
	max-width: var(--container-max-width);
	padding: 0 var(--spacing-sm);
}

.loading-spinner {
	width: 60px;
	height: 60px;
	margin: 0 auto var(--spacing-md);
	border: 4px solid rgba(102, 126, 234, 0.2);
	border-top: 4px solid #667eea;
	border-radius: 50%;
	animation: spin 1s linear infinite;
}

.loading-title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	margin: 0 0 var(--spacing-xs) 0;
	color: var(--color-text-primary);
}

.loading-text {
	color: var(--color-text-secondary);
	margin: 0;
}

@keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
}

/* Result Screen
   ========================================================================== */
.result-container {
	height: 100vh;
	display: flex;
	align-items: flex-start;
	padding: var(--spacing-md) 0;
	overflow: hidden;
}

.result-content {
	width: 100%;
}

.result-title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	text-align: center;
	margin: 0 0 var(--spacing-md) 0;
	color: var(--color-text-primary);
}

.scenario-output {
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius-lg);
	padding: var(--spacing-sm);
	margin-bottom: var(--spacing-md);
	line-height: 1.7;
	font-size: var(--font-size-base);
	color: var(--color-text-primary);
	white-space: pre-wrap;
	word-wrap: break-word;
	max-height: 70vh;
	overflow-y: auto;
}

/* Desktop improvements for result screen */
@media (min-width: 768px) {
	.result-container {
		margin: 0 auto;
		align-items: flex-start;
		justify-content: center;
		height: 100vh;
		padding: var(--spacing-md) 0;
		overflow: hidden;
	}
	
	.scenario-output {
		max-height: 70vh;
		font-size: 16px;
		padding: var(--spacing-md) calc(var(--spacing-lg) * 1.5);
	}
	
	.result-title {
		font-size: 28px;
		margin-bottom: var(--spacing-lg);
	}
	
	/* Улучшенная прокрутка для результата */
	.scenario-output::-webkit-scrollbar {
		width: 8px;
	}
	
	.scenario-output::-webkit-scrollbar-track {
		background: #f1f1f1;
		border-radius: 4px;
	}
	
	.scenario-output::-webkit-scrollbar-thumb {
		background: var(--color-border);
		border-radius: 4px;
	}
	
	.scenario-output::-webkit-scrollbar-thumb:hover {
		background: #a1a1aa;
	}
}

.scenario-output p {
	margin: 0 0 var(--spacing-sm) 0;
}

.scenario-output p:last-child {
	margin-bottom: 0;
}

.scenario-output strong {
	font-weight: var(--font-weight-bold);
	color: #667eea;
}

.scenario-output em {
	font-style: italic;
	color: var(--color-text-secondary);
}

.btn--new-generation {
	display: flex;
	margin: var(--spacing-md) auto;
}

/* Центрирование кнопки "Попробовать снова" */
.error-screen .btn {
	margin: 0 auto;
}

/* Error Screen
   ========================================================================== */
.error-screen {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-background);
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1000;
}

.error-content {
	text-align: center;
	max-width: var(--container-max-width);
	padding: 0 var(--spacing-sm);
}

.error-title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	margin: 0 0 var(--spacing-sm) 0;
	color: #f5576c;
}

.error-text {
	color: var(--color-text-secondary);
	margin: 0 0 var(--spacing-lg) 0;
	line-height: 1.5;
}

/* Large screen improvements
   ========================================================================== */
@media (min-width: 1024px) {
	.scenario-output {
		font-size: 17px;
		line-height: 1.8;
	}
}

/* Responsive adjustments
   ========================================================================== */
@media (max-width: 480px) {
	.scenario-output {
		padding: var(--spacing-sm);
		font-size: 14px;
		max-height: 65vh;
		margin-bottom: var(--spacing-sm);
	}
	
	.result-title {
		font-size: 20px;
		margin-bottom: var(--spacing-sm);
	}
	
	.loading-title,
	.error-title {
		font-size: 20px;
	}
	
	.result-container {
		align-items: flex-start;
		padding: var(--spacing-sm) 0;
		height: 100vh;
		overflow: hidden;
	}
	
	.btn--new-generation {
		margin: var(--spacing-md) auto;
	}
}

/* Structured Scenario Styles
   ========================================================================== */

/* Scenario Title */
.scenario-title {
	font-size: 24px;
	font-weight: var(--font-weight-bold);
	color: #667eea;
	margin: 0 0 var(--spacing-md) 0;
	padding: 0 0 var(--spacing-sm) 0;
	text-align: center;
	border-bottom: 2px solid #667eea;
}

/* Section Titles */
.section-title {
	font-size: 18px;
	font-weight: var(--font-weight-semibold);
	color: #667eea;
	margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
	display: flex;
	align-items: center;
	gap: var(--spacing-xs);
}

.section-title::before {
	content: '';
	width: 4px;
	height: 18px;
	background: linear-gradient(45deg, #667eea, #764ba2);
	border-radius: 2px;
}

/* Meta Information */
.scenario-meta {
	margin: 0 0 var(--spacing-lg) 0;
}

.meta-item {
	display: flex;
	flex-direction: column;
	gap: 4px;
	margin-bottom: var(--spacing-sm);
	padding: var(--spacing-xs) var(--spacing-sm);
	background: #f8fafc;
	border-left: 3px solid #667eea;
	border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.meta-label {
	font-weight: var(--font-weight-semibold);
	font-size: 14px;
	color: #667eea;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.meta-value {
	color: var(--color-text-primary);
	line-height: 1.5;
}

/* Scenes */
.scenario-scenes {
	margin-bottom: var(--spacing-lg);
}

.scene-item {
	margin-bottom: var(--spacing-sm);
	padding: var(--spacing-xs);
	background: #fff;
	border: 1px solid #e2e8f0;
	border-radius: var(--border-radius);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
	transition: box-shadow 0.2s ease;
}

.scene-item:hover {
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.scene-header {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-xs);
	align-items: center;
	margin-bottom: 4px;
	padding-bottom: 4px;
	border-bottom: 1px solid #e2e8f0;
}

.scene-number {
	font-weight: var(--font-weight-bold);
	color: #667eea;
	font-size: 14px;
	white-space: nowrap;
}

.scene-timing {
	background: #f1f5f9;
	color: #475569;
	padding: 2px 8px;
	border-radius: 12px;
	font-size: 12px;
	font-weight: var(--font-weight-medium);
	white-space: nowrap;
}

.scene-type {
	background: linear-gradient(45deg, #667eea, #764ba2);
	color: white;
	padding: 2px 8px;
	border-radius: 12px;
	font-size: 12px;
	font-weight: var(--font-weight-medium);
	white-space: nowrap;
}

.scene-visual,
.scene-text {
	margin-bottom: 4px;
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.scene-visual:last-child,
.scene-text:last-child {
	margin-bottom: 0;
}

.scene-label {
	font-weight: var(--font-weight-semibold);
	font-size: 13px;
	color: #64748b;
	text-transform: uppercase;
	letter-spacing: 0.3px;
}

.scene-content {
	color: var(--color-text-primary);
	line-height: 1.6;
	padding: var(--spacing-xs);
	background: #f8fafc;
	border-radius: var(--border-radius);
	border-left: 2px solid #e2e8f0;
}

/* Production Notes */
.production-notes {
	margin-bottom: var(--spacing-lg);
}

.production-item {
	display: flex;
	flex-direction: column;
	gap: 4px;
	margin-bottom: var(--spacing-sm);
	padding: var(--spacing-sm);
	background: #fefce8;
	border: 1px solid #fde047;
	border-radius: var(--border-radius);
}

.production-label {
	font-weight: var(--font-weight-semibold);
	font-size: 14px;
	color: #a16207;
	display: flex;
	align-items: center;
	gap: var(--spacing-xs);
}

.production-label::before {
	content: '🎬';
	font-size: 16px;
}

.production-content {
	color: #713f12;
	line-height: 1.5;
	font-size: 14px;
}

/* Virality Analysis */
.virality-analysis {
	margin-bottom: var(--spacing-lg);
}

.analysis-item {
	display: flex;
	flex-direction: column;
	gap: 4px;
	margin-bottom: var(--spacing-sm);
	padding: var(--spacing-sm);
	background: #f0fdf4;
	border: 1px solid #86efac;
	border-radius: var(--border-radius);
}

.analysis-label {
	font-weight: var(--font-weight-semibold);
	font-size: 14px;
	color: #15803d;
	display: flex;
	align-items: center;
	gap: var(--spacing-xs);
}

.analysis-label::before {
	content: '📈';
	font-size: 16px;
}

.analysis-content {
	color: #166534;
	line-height: 1.5;
	font-size: 14px;
}

/* Responsive improvements for structured content */
@media (max-width: 768px) {
	.scenario-title {
		font-size: 20px;
	}
	
	.section-title {
		font-size: 16px;
	}
	
	.scene-header {
		flex-direction: row;
		flex-wrap: wrap;
		align-items: center;
		gap: 4px;
		margin-bottom: var(--spacing-xs);
		padding-bottom: var(--spacing-xs);
	}
	
	.meta-item,
	.production-item,
	.analysis-item {
		padding: var(--spacing-xs);
	}
	
	.scene-item {
		padding: var(--spacing-xs);
	}
}

/* Desktop enhancements for structured content */
@media (min-width: 768px) {
	.scenario-title {
		font-size: 28px;
	}
	
	/* Мета-информация остается в колонку (две строки) */
	.meta-item {
		flex-direction: column;
		align-items: flex-start;
		gap: 4px;
	}
	
	/* Сцены остаются в строку для удобства чтения */
	.scene-visual,
	.scene-text {
		flex-direction: row;
		align-items: flex-start;
		gap: var(--spacing-sm);
	}
	
	.scene-label {
		min-width: 60px;
		flex-shrink: 0;
		margin-top: 2px;
	}
	
	/* Заметки по продакшену и анализ виральности остаются в колонку (две строки) */
	.production-item,
	.analysis-item {
		flex-direction: column;
		align-items: flex-start;
		gap: 4px;
	}
}

/* Additional mobile adjustments
   ========================================================================== */
@media (max-width: 480px) {
	.form-field {
		margin: 0 4px;
	}
	
	.title {
		margin-bottom: var(--spacing-sm);
		font-size: 20px;
	}
	
	.scene-header {
		flex-direction: row;
		flex-wrap: wrap;
		align-items: center;
		gap: 4px;
	}
}