/* ===== ОСНОВНЫЕ СТИЛИ ===== */

/* Сброс стилей */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Переменные - MBDTF Theme */
:root {
    --primary-color: #d41f3d;      /* Темно-красный как обложка альбома */
    --secondary-color: #8b4513;    /* Коричневый акцент */
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #f5a623;      /* Золотой как на обложке */
    --info-color: #c9302c;         /* Красно-розовый */
    --dark-color: #1a1a1a;         /* Почти черный */
    --light-color: #fef5e7;        /* Кремовый фон */
    --white: #ffffff;
    --text-color: #2c1810;         /* Темно-коричневый текст */
    --text-muted: #8b6f47;         /* Приглушенный коричневый */
    --border-color: #e8d5c4;       /* Светло-бежевый border */
    --shadow: 0 2px 8px rgba(212, 31, 61, 0.15);
    --shadow-hover: 0 4px 16px rgba(212, 31, 61, 0.25);
    --transition: all 0.3s ease;
}

/* Темная тема */
[data-theme="dark"] {
    --primary-color: #ff4655;      /* Яркий красный для темной темы */
    --secondary-color: #b8860b;    /* Темное золото */
    --dark-color: #f0f0f0;         /* Светлый текст для заголовков */
    --light-color: #1c1c1c;        /* Темно-серый фон (чуть светлее) */
    --white: #2d2d2d;              /* Темный white для карточек */
    --text-color: #e8e8e8;         /* Светлый текст */
    --text-muted: #b0b0b0;         /* Приглушенный серый (светлее) */
    --border-color: #404040;       /* Темный border (светлее) */
    --shadow: 0 2px 8px rgba(255, 70, 85, 0.2);
    --shadow-hover: 0 4px 16px rgba(255, 70, 85, 0.3);
}

/* Базовые стили */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #fef5e7 0%, #f5e6d3 50%, #ede0d0 100%);
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(90deg, rgba(212, 31, 61, 0.02) 0px, transparent 2px, transparent 40px),
        repeating-linear-gradient(0deg, rgba(245, 166, 35, 0.02) 0px, transparent 2px, transparent 40px);
    pointer-events: none;
    z-index: 0;
}

main, header, footer {
    position: relative;
    z-index: 1;
}

[data-theme="dark"] body {
    background: linear-gradient(135deg, #1c1c1c 0%, #2a2a2a 50%, #1c1c1c 100%);
}

[data-theme="dark"] body::before {
    background-image: 
        repeating-linear-gradient(90deg, rgba(255, 70, 85, 0.03) 0px, transparent 2px, transparent 40px),
        repeating-linear-gradient(0deg, rgba(245, 166, 35, 0.03) 0px, transparent 2px, transparent 40px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a:hover {
    color: #b01830;
}

/* ===== ШАПКА САЙТА ===== */
.header {
    background: linear-gradient(135deg, #d41f3d, #8b1a2e, #1a1a1a);
    color: var(--white);
    padding: 1.5rem 0;
    box-shadow: var(--shadow);
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, rgba(245, 166, 35, 0.1) 0%, transparent 50%, rgba(245, 166, 35, 0.1) 100%);
    pointer-events: none;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: 2rem;
}

.logo {
    flex-shrink: 0;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
    color: #fef5e7;
}

.subtitle {
    font-size: 0.9rem;
    color: #f5a623;
}

[data-theme="dark"] .logo h1 {
    color: #f5a623;
}

[data-theme="dark"] .subtitle {
    color: #fef5e7;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: #fef5e7;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: #f5a623;
}

[data-theme="dark"] .nav-link {
    color: #f5a623;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    background-color: rgba(245, 166, 35, 0.2);
    color: #fef5e7;
}

/* Кнопка переключения темы */
.theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    overflow: hidden;
    padding: 0;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateX(5px) scale(1.05);
}

.theme-toggle:active {
    transform: translateX(-5px) scale(0.95);
}

.theme-icon {
    display: block;
    width: 100%;
    height: 100%;
    transition: transform 0.4s ease;
}

.theme-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ===== СЕКЦИИ ===== */
.profile,
.skills,
.projects,
.projects-page,
.diary-page,
.contacts-page {
    padding: 3rem 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--warning-color), var(--primary-color));
    border-radius: 2px;
}

/* ===== ПРОФИЛЬ ===== */
.profile-content {
    display: flex;
    align-items: center;
    gap: 3rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 2px solid var(--warning-color);
    position: relative;
    overflow: hidden;
}

.profile-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--warning-color));
}

.profile-photo img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--warning-color);
    box-shadow: 0 0 20px rgba(245, 166, 35, 0.4);
    transition: var(--transition);
}

.profile-photo img:hover {
    transform: scale(1.05) rotate(3deg);
    border-color: var(--primary-color);
    box-shadow: 0 0 30px rgba(212, 31, 61, 0.5);
}

.profile-info h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.profile-faculty {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.profile-description {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* ===== КНОПКИ ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #b01830);
    color: #fef5e7;
    border-color: var(--warning-color);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #b01830, var(--primary-color));
    color: #fef5e7;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 31, 61, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--warning-color), #d4860b);
    color: #1a1a1a;
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #d4860b, var(--warning-color));
    color: #1a1a1a;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
}

/* ===== НАВЫКИ ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    transition: var(--transition);
}

.skill-item:hover {
    border-color: var(--warning-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(245, 166, 35, 0.2);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.skill-name {
    font-weight: 700;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.skill-percent {
    color: var(--warning-color);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(245, 166, 35, 0.3);
}

.progress-bar {
    height: 10px;
    background-color: var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--warning-color));
    transition: width 1s ease;
}

/* ===== ПРОЕКТЫ ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: linear-gradient(135deg, #ffffff 0%, #fefefe 100%);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid rgba(245, 166, 35, 0.2);
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 31, 61, 0.05), rgba(245, 166, 35, 0.05));
    opacity: 1;
    transition: opacity 0.3s;
    pointer-events: none;
}

[data-theme="dark"] .project-card {
    background: linear-gradient(135deg, #2d2d2d 0%, #3a3a3a 100%);
    border-color: rgba(245, 166, 35, 0.3);
}

.project-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 8px 25px rgba(212, 31, 61, 0.3);
    border-color: var(--warning-color);
}

.project-card:hover::before {
    opacity: 1;
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-card {
    position: relative;
}

.project-image-wrapper {
    position: relative;
    overflow: hidden;
}

.project-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 31, 61, 0.75), rgba(245, 166, 35, 0.75));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fef5e7;
    font-size: 1.8rem;
    font-weight: 700;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.9);
    letter-spacing: 1px;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-content p {
    color: var(--text-color);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: linear-gradient(135deg, var(--primary-color), #b01830);
    color: #fef5e7;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--warning-color);
    font-weight: 600;
    transition: var(--transition);
}

.tag:hover {
    background: linear-gradient(135deg, var(--warning-color), #d4860b);
    color: #1a1a1a;
    transform: scale(1.05);
}

/* ===== ФИЛЬТРЫ ===== */
.filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--primary-color);
    background-color: #fef5e7;
    color: var(--primary-color);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    position: relative;
}

[data-theme="dark"] .filter-btn {
    background-color: #2d2d2d;
    color: var(--warning-color);
    border-color: var(--warning-color);
}

.filter-btn:hover {
    color: #fef5e7;
    border-color: var(--warning-color);
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 31, 61, 0.3);
}

.filter-btn.active {
    color: #fef5e7 !important;
    border-color: var(--warning-color);
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color)) !important;
    font-weight: 700;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(212, 31, 61, 0.4);
}

[data-theme="dark"] .filter-btn.active {
    color: #fef5e7 !important;
    background: linear-gradient(135deg, var(--warning-color), var(--primary-color)) !important;
}

/* ===== МОДАЛЬНОЕ ОКНО ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    max-width: 600px;
    position: relative;
    animation: slideDown 0.3s;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-muted);
    cursor: pointer;
}

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

.modal-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 4px;
    margin: 1rem 0;
}

.modal-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* ===== ДНЕВНИК ===== */
.diary-entries {
    margin-bottom: 3rem;
}

.diary-entry {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    border-left: 5px solid transparent;
    border-image: linear-gradient(180deg, var(--primary-color), var(--warning-color)) 1;
    transition: var(--transition);
    position: relative;
}

.diary-entry::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--warning-color));
}

.diary-entry:hover {
    transform: translateX(5px);
    box-shadow: 0 6px 20px rgba(212, 31, 61, 0.2);
}

.entry-date {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.entry-title {
    color: var(--dark-color);
    margin-bottom: 0.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.entry-description {
    color: var(--text-color);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.entry-status {
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.status-completed {
    background-color: #d4edda;
    color: #155724;
}

.status-progress {
    background-color: #fff3cd;
    color: #856404;
}

/* Курсы */
.current-courses {
    margin-bottom: 3rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.course-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.course-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.course-name {
    font-weight: 600;
    color: var(--dark-color);
}

.course-percent {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== ФОРМЫ ===== */
.add-entry-section,
.contact-form-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.entry-form,
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* ===== КОНТАКТЫ ===== */
.contacts-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.contact-info-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-info-section h3 {
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.contact-details {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.contact-details a,
.contact-details span {
    color: var(--text-muted);
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* ===== ФУТЕР ===== */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .profile-content {
        flex-direction: column;
        text-align: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contacts-content {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 10% 5%;
        max-width: 100%;
    }
}

/* ===== АНИМАЦИИ ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Применяем анимации к элементам */
.profile-content {
    animation: fadeInUp 0.8s ease;
}

.skill-item {
    animation: fadeInUp 0.8s ease;
}

.skill-item:nth-child(1) { animation-delay: 0.1s; opacity: 0; animation-fill-mode: forwards; }
.skill-item:nth-child(2) { animation-delay: 0.2s; opacity: 0; animation-fill-mode: forwards; }
.skill-item:nth-child(3) { animation-delay: 0.3s; opacity: 0; animation-fill-mode: forwards; }
.skill-item:nth-child(4) { animation-delay: 0.4s; opacity: 0; animation-fill-mode: forwards; }

.project-card {
    animation: fadeInUp 0.8s ease;
}

.project-card:nth-child(1) { animation-delay: 0.1s; opacity: 0; animation-fill-mode: forwards; }
.project-card:nth-child(2) { animation-delay: 0.2s; opacity: 0; animation-fill-mode: forwards; }
.project-card:nth-child(3) { animation-delay: 0.3s; opacity: 0; animation-fill-mode: forwards; }
.project-card:nth-child(4) { animation-delay: 0.4s; opacity: 0; animation-fill-mode: forwards; }
.project-card:nth-child(5) { animation-delay: 0.5s; opacity: 0; animation-fill-mode: forwards; }
.project-card:nth-child(6) { animation-delay: 0.6s; opacity: 0; animation-fill-mode: forwards; }