/* ================================
   ДНК ЛАБОРАТОРИЯ - ОСНОВНЫЕ СТИЛИ
   ================================ */

/* Переменные CSS */
:root {
    --primary-blue: #3B82F6;
    --primary-purple: #8B5CF6;
    --primary-green: #10B981;
    --secondary-orange: #F59E0B;
    --accent-red: #EF4444;
    --light-gray: #F8FAFC;
    --medium-gray: #6B7280;
    --dark-gray: #1F2937;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
}

/* Кнопки */
.btn-primary {
    @apply px-6 py-3 bg-gradient-to-r from-blue-600 to-purple-600 text-white font-medium rounded-lg shadow-md hover:shadow-lg transform hover:-translate-y-0.5 transition-all duration-300;
}

.btn-secondary {
    @apply px-6 py-3 bg-gray-200 text-gray-700 font-medium rounded-lg shadow-md hover:shadow-lg hover:bg-gray-300 transform hover:-translate-y-0.5 transition-all duration-300;
}

.btn-primary:disabled,
.btn-secondary:disabled {
    @apply opacity-50 cursor-not-allowed transform-none;
}

/* Навигационные кнопки */
.nav-btn {
    @apply flex items-center space-x-2 px-6 py-4 text-gray-600 border-b-3 border-transparent hover:text-blue-600 hover:border-blue-300 transition-all duration-300 font-medium;
}

.nav-btn.active {
    @apply text-blue-600 border-blue-600 bg-blue-50;
}

.nav-btn i {
    @apply text-lg;
}

/* Разделы контента */
.content-section {
    @apply hidden;
    animation: fadeIn 0.5s ease-in-out;
}

.content-section.active {
    @apply block;
}

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

/* Выбор материала */
.material-option {
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.material-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.material-option:hover::before {
    left: 100%;
}

.material-option.selected {
    @apply border-green-500 bg-green-50;
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
}

.material-option.selected::after {
    content: '✓';
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary-green);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Оборудование и реагенты */
.equipment-item,
.reagent-item {
    transition: var(--transition);
    position: relative;
}

.equipment-item:hover,
.reagent-item:hover {
    @apply shadow-md transform scale-105;
}

.equipment-item.selected,
.reagent-item.selected {
    @apply border-blue-500 bg-blue-50;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
}

/* Drag and Drop стили */
.draggable {
    cursor: grab;
    transition: var(--transition);
}

.draggable:active {
    cursor: grabbing;
}

.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.drop-zone {
    transition: var(--transition);
    position: relative;
}

.drop-zone.drag-over {
    @apply border-blue-500 bg-blue-100;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.drop-zone.drag-over::after {
    content: 'Отпустите здесь';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--primary-blue);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Рабочая область лаборатории */
#labWorkspace {
    background: 
        radial-gradient(circle at 25% 25%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.lab-equipment {
    background: white;
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: grab;
}

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

.lab-equipment.in-use {
    @apply border-2 border-green-500;
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
}

/* Прогресс бар */
#progressBar {
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(90deg, var(--primary-purple), var(--primary-blue));
    position: relative;
}

#progressBar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Этапы эксперимента */
.experiment-step {
    @apply bg-white rounded-lg shadow-md p-6 border-l-4;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.experiment-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
    pointer-events: none;
}

.experiment-step.pending {
    @apply border-gray-300 opacity-60;
}

.experiment-step.active {
    @apply border-blue-500;
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.2);
}

.experiment-step.completed {
    @apply border-green-500 bg-green-50;
}

.step-number {
    @apply w-10 h-10 rounded-full flex items-center justify-center text-white font-bold text-lg;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
}

.experiment-step.completed .step-number {
    background: var(--primary-green);
}

.experiment-step.pending .step-number {
    background: var(--medium-gray);
}

/* Журнал наблюдений */
.observation-entry {
    @apply bg-white rounded-lg p-4 border-l-4 border-yellow-400;
    animation: slideIn 0.5s ease-out;
}

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

/* Результаты анализа */
.result-card {
    @apply bg-white rounded-lg shadow-md p-6;
    transition: var(--transition);
    position: relative;
}

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

.efficiency-meter {
    height: 8px;
    background: #E5E7EB;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.efficiency-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-red) 0%, var(--secondary-orange) 50%, var(--primary-green) 100%);
    transition: width 1s ease-out;
    border-radius: 4px;
}

/* Вопросы и тесты */
.question-card {
    @apply bg-white rounded-lg shadow-md p-6 border border-gray-200;
    transition: var(--transition);
}

.question-option {
    @apply p-3 rounded-lg border cursor-pointer transition-all duration-200;
}

.question-option:hover {
    @apply bg-gray-50 border-gray-300;
}

.question-option.selected {
    @apply bg-blue-50 border-blue-500;
}

.question-option.correct {
    @apply bg-green-50 border-green-500;
}

.question-option.incorrect {
    @apply bg-red-50 border-red-500;
}

/* Модальные окна */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 32px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.show .modal-content {
    transform: scale(1);
}

.close {
    color: var(--medium-gray);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close:hover {
    color: var(--dark-gray);
}

/* Протокол */
#protocolContent {
    font-family: 'Times New Roman', serif;
}

/* Анимации для появления элементов */
.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Специальные эффекты для ДНК */
.dna-helix {
    position: relative;
    overflow: hidden;
}

.dna-helix::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(59, 130, 246, 0.1),
        rgba(139, 92, 246, 0.1),
        transparent
    );
    animation: dnaSpiral 3s infinite linear;
}

@keyframes dnaSpiral {
    0% {
        transform: translateX(-100%) rotate(0deg);
    }
    100% {
        transform: translateX(300%) rotate(360deg);
    }
}

/* Эффект пипетки */
.pipette-effect {
    position: relative;
}

.pipette-effect::after {
    content: '💧';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    animation: droplet 2s infinite;
    opacity: 0;
}

@keyframes droplet {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* Эффект нагревания */
.heating-effect {
    position: relative;
}

.heating-effect::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(239, 68, 68, 0.3) 25%, 
        rgba(245, 158, 11, 0.3) 50%, 
        rgba(239, 68, 68, 0.3) 75%, 
        transparent 100%
    );
    animation: heatWave 1.5s infinite;
}

@keyframes heatWave {
    0%, 100% {
        transform: scaleY(1);
    }
    50% {
        transform: scaleY(1.5);
    }
}

/* Респонсивность */
@media (max-width: 768px) {
    .nav-btn {
        @apply px-3 py-2 text-sm;
    }
    
    .nav-btn span {
        @apply hidden;
    }
    
    .container {
        @apply px-2;
    }
    
    .grid {
        @apply grid-cols-1;
    }
    
    .modal-content {
        @apply w-95 p-4;
    }
    
    #labWorkspace .grid {
        @apply grid-cols-1 gap-2;
    }
}

@media (max-width: 480px) {
    header h1 {
        @apply text-xl;
    }
    
    .btn-primary,
    .btn-secondary {
        @apply px-4 py-2 text-sm;
    }
}

/* Специальные индикаторы состояния */
.status-indicator {
    @apply w-3 h-3 rounded-full inline-block mr-2;
}

.status-pending {
    @apply bg-gray-400;
}

.status-active {
    @apply bg-blue-500;
    animation: pulse 2s infinite;
}

.status-completed {
    @apply bg-green-500;
}

.status-error {
    @apply bg-red-500;
}

/* Эффекты для текста */
.text-glow {
    text-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Кастомные скроллбары */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #F1F5F9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #2563EB, #7C3AED);
}

/* Печать */
@media print {
    .no-print {
        display: none !important;
    }
    
    .content-section {
        display: block !important;
    }
    
    body {
        background: white !important;
    }
    
    .bg-gradient-to-br,
    .bg-gradient-to-r {
        background: white !important;
    }
}