/* ===== KidsAI.bg - Основни стилове ===== */
/* Версия: 2.0 - Оптимизиран за лесна поддръжка */

:root {
    --primary: #2c3e50;
    --secondary: #34495e;
    --accent: #3498db;
    --light-accent: #5dade2;
    --green-zone: #2ecc71;
    --yellow-zone: #f1c40f;
    --red-zone: #e74c3c;
    --light: #f8f9fa;
    --dark: #212529;
    --background-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: var(--background-gradient);
    color: var(--dark);
    line-height: 1.6;
}

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

/* ===== ХЕДЪР ===== */
.main-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 2.2rem;
    color: var(--primary);
}

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

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    white-space: nowrap;
}

.nav-links a:hover {
    background: linear-gradient(45deg, var(--primary), var(--accent));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.nav-links a.active {
    background: linear-gradient(45deg, var(--primary), var(--accent));
    color: white;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--primary);
    margin: 4px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-6px, -6px);
}

/* ===== HERO СЕКЦИЯ ===== */
.hero {
    padding: 180px 0 100px;
    text-align: center;
    background: 
        linear-gradient(rgba(102, 126, 234, 0.85), rgba(118, 75, 162, 0.85)),
        url('images/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path fill="rgba(255,255,255,0.05)" d="M0,0 L100,0 L100,100 Z"/></svg>');
    background-size: cover;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s forwards;
}

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

/* ===== PAGE HERO (за вътрешни страници) ===== */
.page-hero {
    padding: 140px 0 60px;
    text-align: center;
    background: 
        linear-gradient(rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9)),
        url('images/hero-bg.png');
    background-size: cover;
    background-position: center;
    color: white;
}

.page-hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ===== CTA BUTTON ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(45deg, var(--accent), var(--light-accent));
    color: white;
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.4);
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.6);
}

/* ===== СЕКЦИИ ===== */
.section-title {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-description {
    text-align: center;
    color: #555;
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 3rem auto;
    padding: 25px;
    background: rgba(52, 152, 219, 0.05);
    border-radius: 15px;
    border-left: 4px solid var(--accent);
}

/* ===== ТИМ СЕКЦИЯ ===== */
.team-section {
    padding: 100px 0;
    background: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.team-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border: 2px solid transparent;
}

.team-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
}

.team-icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.team-card h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: var(--dark);
}

/* ===== ТРИЗОНИТЕ ===== */
.zones-section {
    padding: 100px 0;
    background: white;
}

.zones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.zone-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border: 2px solid transparent;
}

.zone-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.zone-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
}

.zone-card.green::before { background: var(--green-zone); }
.zone-card.yellow::before { background: var(--yellow-zone); }
.zone-card.red::before { background: var(--red-zone); }

.zone-icon {
    font-size: 4rem;
    margin-bottom: 25px;
    display: inline-block;
}

.zone-card.green .zone-icon { color: var(--green-zone); }
.zone-card.yellow .zone-icon { color: var(--yellow-zone); }
.zone-card.red .zone-icon { color: var(--red-zone); }

.zone-card h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.zone-features {
    list-style: none;
    text-align: left;
    margin-top: 25px;
}

.zone-features li {
    padding: 10px 0;
    padding-left: 35px;
    position: relative;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.zone-features li:last-child {
    border-bottom: none;
}

.zone-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 10px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.zone-card.green .zone-features li::before { background: var(--green-zone); color: white; }
.zone-card.yellow .zone-features li::before { background: var(--yellow-zone); color: white; }
.zone-card.red .zone-features li::before { background: var(--red-zone); color: white; }

/* ===== ИГРА ===== */
.game-section {
    padding: 100px 0;
    background: 
        linear-gradient(rgba(240, 244, 255, 0.95), rgba(230, 240, 255, 0.95)),
        url('images/game-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.game-container {
    background: white;
    border-radius: 25px;
    padding: 50px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    margin-top: 40px;
    position: relative;
}

.game-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left: 5px solid #f1c40f;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.game-warning i {
    font-size: 2rem;
    color: #f39c12;
    flex-shrink: 0;
}

.game-warning-text {
    flex: 1;
}

.game-warning-text strong {
    display: block;
    margin-bottom: 5px;
    color: #e67e22;
}

.game-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 600;
}

.stat-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

.game-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.drop-zone {
    background: white;
    border: 3px dashed #e0e0e0;
    border-radius: 20px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    position: relative;
}

.drop-zone.drag-over {
    border-color: var(--primary);
    background: rgba(52, 152, 219, 0.05);
    transform: scale(1.02);
}

.drop-zone.green { border-color: var(--green-zone); }
.drop-zone.yellow { border-color: var(--yellow-zone); }
.drop-zone.red { border-color: var(--red-zone); }

.zone-badge {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 1rem;
}

.green .zone-badge { background: var(--green-zone); color: white; }
.yellow .zone-badge { background: var(--yellow-zone); color: white; }
.red .zone-badge { background: var(--red-zone); color: white; }

.drop-zone-description {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
}

.dropped-cards-container {
    position: relative;
    width: 100%;
    min-height: 60px;
    margin-top: 15px;
}

.cards-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin: 40px 0;
    padding: 30px;
    background: rgba(255,255,255,0.8);
    border-radius: 20px;
    min-height: 200px;
}

.game-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    width: 260px;
    cursor: grab;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    user-select: none;
    touch-action: none;
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(45deg, var(--primary), var(--accent));
}

.game-card:hover {
    transform: translateY(-8px) rotate(2deg);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
}

.game-card.dragging {
    opacity: 0.6;
    transform: scale(0.95);
    cursor: grabbing;
}

.card-emoji {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
}

.card-text {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 10px;
}

.card-hint {
    font-size: 0.75rem;
    color: #999;
    font-style: italic;
}

/* Dropped card - stack style */
.dropped-card {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    padding: 12px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    animation: cardDropAnimation 0.5s ease;
}

@keyframes cardDropAnimation {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(-20px);
    }
    60% {
        transform: scale(1.05) translateY(0);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.dropped-card:hover {
    transform: translateY(-5px);
    z-index: 10;
}

.dropped-card-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.dropped-card-emoji {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.dropped-card-info {
    flex: 1;
    text-align: left;
}

.dropped-card-text {
    font-size: 0.8rem;
    margin-bottom: 5px;
    color: #333;
}

.dropped-card-feedback {
    font-size: 0.75rem;
    padding: 5px 8px;
    border-radius: 5px;
    display: inline-block;
}

.dropped-card-feedback.correct {
    background: rgba(46, 204, 113, 0.2);
    color: #27ae60;
}

.dropped-card-feedback.incorrect {
    background: rgba(231, 76, 60, 0.2);
    color: #c0392b;
}

.cards-counter {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.game-controls {
    text-align: center;
    margin-top: 30px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.game-controls button {
    padding: 15px 35px;
    font-size: 1rem;
}

/* ===== MODAL СТИЛОВЕ ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 25px;
    max-width: 600px;
    width: 90%;
    position: relative;
    animation: slideIn 0.4s ease;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

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

.modal-header {
    padding: 30px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.modal-header h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.modal-body {
    padding: 40px;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2rem;
    color: white;
    cursor: pointer;
    background: none;
    border: none;
    transition: transform 0.3s ease;
}

.modal-close:hover {
    transform: scale(1.2) rotate(90deg);
}

.tutorial-step {
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 15px;
    border-left: 5px solid var(--accent);
}

.tutorial-step h4 {
    color: var(--primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tutorial-step i {
    font-size: 1.5rem;
}

.celebration-content {
    text-align: center;
}

.celebration-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.celebration-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    margin: 20px 0;
}

.celebration-message {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: #666;
}

.celebration-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin: 30px 0;
}

.celebration-stat {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
}

.celebration-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.celebration-stat-label {
    font-size: 0.85rem;
    color: #666;
    margin-top: 5px;
}

/* ===== CONTENT SECTIONS (за статии, ресурси, AI Lab) ===== */
.content-section {
    padding: 80px 0;
    background: white;
}

.content-section:nth-child(even) {
    background: var(--light);
}

/* ===== ARTICLES GRID ===== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.article-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

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

.article-content {
    padding: 25px;
}

.article-category {
    display: inline-block;
    padding: 5px 15px;
    background: var(--accent);
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.article-title {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.article-excerpt {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #999;
    font-size: 0.85rem;
}

.read-more {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.read-more:hover {
    color: var(--primary);
}

/* ===== RESOURCES GRID ===== */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.resource-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.resource-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent), var(--light-accent));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resource-icon i {
    font-size: 1.8rem;
    color: white;
}

.resource-icon.pdf { background: linear-gradient(135deg, #e74c3c, #c0392b); }
.resource-icon.video { background: linear-gradient(135deg, #9b59b6, #8e44ad); }
.resource-icon.worksheet { background: linear-gradient(135deg, #2ecc71, #27ae60); }
.resource-icon.link { background: linear-gradient(135deg, #3498db, #2980b9); }

.resource-info {
    flex: 1;
}

.resource-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}

.resource-description {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 12px;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.resource-link:hover {
    color: var(--primary);
}

/* ===== AI LAB EXPERIMENTS ===== */
.experiments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.experiment-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.experiment-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.experiment-header {
    padding: 25px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.experiment-type {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(255,255,255,0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 10px;
}

.experiment-title {
    font-size: 1.4rem;
    margin-bottom: 5px;
}

.experiment-date {
    font-size: 0.85rem;
    opacity: 0.8;
}

.experiment-content {
    padding: 25px;
}

.experiment-description {
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.experiment-materials {
    background: var(--light);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.experiment-materials h4 {
    font-size: 0.95rem;
    margin-bottom: 10px;
    color: var(--primary);
}

.experiment-materials ul {
    list-style: none;
    padding-left: 0;
}

.experiment-materials li {
    padding: 5px 0;
    padding-left: 25px;
    position: relative;
    font-size: 0.9rem;
}

.experiment-materials li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green-zone);
}

.experiment-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(45deg, var(--accent), var(--light-accent));
    color: white;
    padding: 12px 25px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.experiment-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(52, 152, 219, 0.4);
}

/* ===== CONTACT FORM ===== */
.contact-form {
    max-width: 600px;
    margin: 40px auto 0;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(45deg, var(--accent), var(--light-accent));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.4);
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.empty-state i {
    font-size: 4rem;
    color: #ddd;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--dark);
}

/* ===== ФУТЪР ===== */
.main-footer {
    background: linear-gradient(135deg, var(--dark), #343a40);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    text-align: left;
}

.footer-section h4 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.footer-section p {
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact {
    margin-top: 15px;
}

.footer-contact a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--light-accent);
}

.copyright {
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #aaa;
    font-size: 0.9rem;
    text-align: center;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.4s;
        box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        padding: 30px 0;
        gap: 0;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        margin: 15px 0;
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .zones-grid {
        grid-template-columns: 1fr;
    }

    /* TABLET: Horizontal zones layout */
    .game-board {
        display: flex;
        flex-direction: row;
        gap: 15px;
        overflow-x: auto;
        padding-bottom: 10px;
    }

    .drop-zone {
        min-width: 200px;
        flex: 1;
    }

    .game-container {
        padding: 25px;
    }

    .game-stats {
        flex-direction: column;
        align-items: stretch;
    }

    .celebration-stats {
        grid-template-columns: 1fr;
    }

    .game-card {
        width: 100%;
        max-width: 300px;
    }

    .footer-content {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .game-warning {
        flex-direction: column;
        text-align: center;
    }

    /* MOBILE: Sticky zones at top */
    .game-board {
        position: sticky;
        top: 80px;
        z-index: 100;
        background: white;
        padding: 15px;
        border-radius: 15px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        margin-bottom: 20px;
        display: flex;
        flex-direction: row;
        gap: 10px;
        overflow-x: auto;
    }

    .drop-zone {
        min-height: 120px;
        min-width: 150px;
        padding: 15px;
        flex-shrink: 0;
    }

    .zone-badge {
        font-size: 0.8rem;
        padding: 6px 12px;
    }

    .drop-zone-description {
        font-size: 0.75rem;
    }

    .cards-container {
        padding: 20px 15px;
        gap: 15px;
    }

    .game-card {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }

    .page-hero h1 {
        font-size: 2rem;
    }

    .articles-grid,
    .experiments-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 25px;
    }
}