/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Syne:wght@400;600;700;800&display=swap');

:root {
    /* Основная палитра - терракота и земляные тона */
    --primary: #C75B39;
    --primary-dark: #A04527;
    --primary-light: #E88B6F;
    --secondary: #2C3E50;
    --accent: #F39C12;
    
    /* Нейтральные цвета */
    --bg-main: #FAF8F5;
    --bg-card: #FFFFFF;
    --bg-input: #F5F2EE;
    --border: #DDD5CC;
    --text-primary: #2C3E50;
    --text-secondary: #6C7A89;
    --text-muted: #95A5A6;
    
    /* Успех и акценты */
    --success: #27AE60;
    --info: #3498DB;
    --warning: #F39C12;
    
    /* Тени */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* Шрифты */
    --font-display: 'Syne', sans-serif;
    --font-mono: 'Space Mono', monospace;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Радиусы */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

/* Базовые стили */
* {
    box-sizing: border-box;
}

.tile-calculator-wrapper {
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--bg-main);
    padding: 40px 20px;
    min-height: 600px;
    position: relative;
    overflow: hidden;
}

/* Декоративный фон */
.tile-calculator-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(199, 91, 57, 0.08) 0%, transparent 70%);
    pointer-events: none;
    animation: float 20s ease-in-out infinite;
}

.tile-calculator-wrapper::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(243, 156, 18, 0.06) 0%, transparent 70%);
    pointer-events: none;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(5deg); }
    66% { transform: translate(-20px, 20px) rotate(-5deg); }
}

/* Контейнер калькулятора */
.calc-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* Заголовок */
.calc-header {
    text-align: center;
    margin-bottom: 48px;
    animation: slideDown 0.6s ease-out;
}

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

.calc-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    margin: 0 0 12px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.calc-subtitle {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Основной контент */
.calc-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    animation: fadeIn 0.8s ease-out 0.2s backwards;
}

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

/* Колонка ввода */
.calc-inputs {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.calc-inputs:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Секции */
.input-section {
    margin-bottom: 32px;
    animation: slideIn 0.5s ease-out backwards;
}

.input-section:nth-child(1) { animation-delay: 0.1s; }
.input-section:nth-child(2) { animation-delay: 0.2s; }
.input-section:nth-child(3) { animation-delay: 0.3s; }
.input-section:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 20px 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-icon {
    font-size: 1.5rem;
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

/* Группы ввода */
.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.input-group input[type="number"],
.input-group select {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    transition: all 0.3s ease;
    appearance: none;
}

.input-group input[type="number"]:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px rgba(199, 91, 57, 0.1);
    transform: translateY(-1px);
}

.input-group input[type="number"]:hover,
.input-group select:hover {
    border-color: var(--primary-light);
}

/* Чекбоксы */
.checkbox-group {
    margin-bottom: 16px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-primary);
    user-select: none;
    transition: all 0.2s ease;
}

.checkbox-label:hover {
    color: var(--primary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
}

.sub-inputs {
    margin-top: 12px;
    margin-left: 32px;
    display: grid;
    gap: 8px;
    animation: slideDown 0.3s ease-out;
}

.sub-inputs input {
    padding: 10px 12px;
    font-size: 0.9rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.sub-inputs input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
}

/* Кнопка расчета */
.calc-button {
    width: 100%;
    padding: 18px 32px;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    box-shadow: var(--shadow-md), 0 4px 0 var(--primary-dark);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.calc-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.calc-button:hover::before {
    left: 100%;
}

.calc-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 6px 0 var(--primary-dark);
}

.calc-button:active {
    transform: translateY(2px);
    box-shadow: var(--shadow-sm), 0 2px 0 var(--primary-dark);
}

.btn-icon {
    font-size: 1.3rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Колонка результатов */
.calc-results {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    min-height: 600px;
}

.results-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 3px solid var(--primary);
}

.results-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

/* Пустое состояние */
.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.3;
    animation: float 3s ease-in-out infinite;
}

.empty-state p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

/* Результаты */
.results-grid {
    display: grid;
    gap: 16px;
    margin-bottom: 24px;
    animation: fadeInUp 0.5s ease-out;
}

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

.result-item {
    background: var(--bg-input);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.result-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.result-item:hover::before {
    transform: scaleY(1);
}

.result-item:hover {
    border-color: var(--primary);
    background: var(--bg-card);
    transform: translateX(4px);
}

.result-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.result-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0;
    line-height: 1.2;
}

.result-unit {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.result-highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-color: var(--primary);
    color: white;
}

.result-highlight .result-label,
.result-highlight .result-value,
.result-highlight .result-unit {
    color: white;
}

/* Визуализация */
.visualization {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 2px solid var(--border);
    animation: fadeIn 0.6s ease-out;
}

.viz-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 16px 0;
    color: var(--text-primary);
}

#tileCanvas {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    background: var(--bg-input);
    box-shadow: var(--shadow-sm);
}

/* Адаптивность */
@media (max-width: 968px) {
    .calc-content {
        grid-template-columns: 1fr;
    }
    
    .calc-title {
        font-size: 2.2rem;
    }
    
    .calc-inputs,
    .calc-results {
        padding: 24px;
    }
}

@media (max-width: 640px) {
    .tile-calculator-wrapper {
        padding: 20px 12px;
    }
    
    .calc-title {
        font-size: 1.8rem;
    }
    
    .calc-subtitle {
        font-size: 0.85rem;
    }
    
    .calc-inputs,
    .calc-results {
        padding: 20px;
        border-radius: var(--radius-lg);
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
}

/* Печать */
@media print {
    .tile-calculator-wrapper::before,
    .tile-calculator-wrapper::after {
        display: none;
    }
    
    .calc-button {
        display: none;
    }
    
    .calc-content {
        grid-template-columns: 1fr;
    }
}