/* --- ГЛОБАЛНА СВЕТЛА ЦВЕТОВА ГАМА --- */
:root {
    --white: #ffffff;
    --light-grey: #f8fafc;
    --light-blue-100: #f0f9ff;
    --light-blue-200: #e0f2fe;
    --light-blue-300: #bae6fd;
    --sky-blue-light: #38bdf8;
    --sky-blue: #0ea5e9;
    --sky-blue-dark: #0284c7;
    --text-slate: #475569;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-soft: 0 4px 20px rgba(14, 165, 233, 0.05);
    --shadow-corporate: 0 8px 25px rgba(2, 132, 199, 0.12);
    --shadow-card-hover: 0 20px 35px rgba(14, 165, 233, 0.1);
}

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

body {
    font-family: 'Nunito', sans-serif;
    color: var(--text-slate);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

a {
    text-decoration: none;
}

/* ЗАГЛАВИЯ */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.2rem;
    color: var(--sky-blue-dark);
    margin-bottom: 12px;
    font-weight: 800;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--sky-blue);
    font-size: 1.1rem;
    font-weight: 400;
}

/* --- STICKY NAVBAR --- */
.main-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 46px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--sky-blue-dark);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 6px;
}

.nav-item {
    color: var(--sky-blue-dark);
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 30px;
    transition: var(--transition-smooth);
}

.nav-item:hover, .nav-item.active {
    color: var(--white);
    background: linear-gradient(135deg, var(--sky-blue) 0%, var(--sky-blue-light) 100%);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.15);
}

/* ХАМБУРГЕР БУТОН */
.hamburger-menu {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1010;
}

.hamburger-menu span {
    width: 100%;
    height: 3px;
    background-color: var(--sky-blue-dark);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

.hamburger-menu.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger-menu.open span:nth-child(2) { opacity: 0; }
.hamburger-menu.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* --- SIDEBAR --- */
.sidebar {
    position: fixed;
    top: 0;
    right: -310px;
    width: 310px;
    max-width: 100vw;
    height: 100%;
    background-color: var(--white);
    box-shadow: -10px 0 35px rgba(14, 165, 233, 0.08);
    z-index: 1500;
    transition: var(--transition-smooth);
    padding: 35px 25px;
    display: flex;
    flex-direction: column;
}

.sidebar.active { right: 0; }
.sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; padding-bottom: 15px;
border-bottom: 2px solid var(--light-blue-100); }
.sidebar-title { font-size: 1.3rem; font-weight: 800; color: var(--sky-blue-dark); }
.close-sidebar-btn { background: transparent; border: none; font-size: 2rem;
color: var(--sky-blue); cursor: pointer; line-height: 1; }
.sidebar-links { list-style: none; display: flex; flex-direction: column; gap: 6px; }

.sidebar-links a {
    color: var(--sky-blue-dark);
    font-weight: 700;
    font-size: 1.05rem;
    padding: 12px 16px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-smooth);
}

.sidebar-links a:hover, .sidebar-links .active-link {
    background-color: var(--light-blue-100);
    color: var(--sky-blue);
    padding-left: 22px;
}

.mobile-only-link { display: none !important; }

.sidebar-dropdown { display: flex; flex-direction: column; }
.dropdown-toggle { justify-content: space-between !important; }
.arrow-icon { font-size: 0.75rem; transition: var(--transition-smooth); }
.sidebar-dropdown.open .arrow-icon { transform: rotate(180deg); }

.dropdown-menu {
    list-style: none;
    padding-left: 15px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.35s ease-in-out;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-dropdown.open .dropdown-menu { max-height: 200px; opacity: 1; margin-top: 4px; }
.dropdown-menu a { font-size: 0.95rem; font-weight: 600; background-color: var(--light-grey); }
.sidebar-overlay { position: fixed; top: 0; left: 0; width: 100%;
height: 100%; background-color: rgba(2, 132, 199, 0.2); backdrop-filter: blur(4px); z-index: 1400; opacity: 0; visibility: hidden; transition: var(--transition-smooth); }
.sidebar-overlay.active { opacity: 1; visibility: visible; }

/* --- СЕКЦИЯ СТАТИСТИКИ --- */
.stats-section { padding-top: 40px; padding-bottom: 60px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.stat-card { background-color: var(--light-grey); border-radius: 20px; padding: 35px 25px; text-align: center;
box-shadow: var(--shadow-soft); border: 1px solid rgba(14, 165, 233, 0.03); transition: var(--transition-smooth); }
.stat-card:hover { transform: translateY(-6px); background-color: var(--white); border-color: var(--light-blue-300);
box-shadow: var(--shadow-card-hover); }
.stat-icon-wrapper { width: 65px; height: 65px; background: linear-gradient(135deg, var(--light-blue-100) 0%, var(--light-blue-200) 100%); color: var(--sky-blue); border-radius: 50%; display: flex;
align-items: center; justify-content: center; font-size: 1.6rem; margin: 0 auto 15px auto; transition: var(--transition-smooth); }
.stat-card:hover .stat-icon-wrapper { background: linear-gradient(135deg, var(--sky-blue) 0%, var(--sky-blue-light) 100%); color: var(--white); }
.stat-number { font-size: 2.4rem; font-weight: 800; color: var(--sky-blue-dark); }
.stat-label { font-size: 1rem; font-weight: 700; color: var(--text-slate); }

/* --- СТРУКТУРА НА ТЕКСТА И СНИМКИТЕ --- */
.history-section { background-color: var(--light-blue-100);
border-top: 1px solid var(--light-blue-200); border-bottom: 1px solid var(--light-blue-200); }
.modernity-section { background-color: var(--white); }
.about-block-split { display: grid; grid-template-columns: 1.2fr 0.8fr;
gap: 60px; align-items: start; }
.about-block-split.reverse { grid-template-columns: 0.8fr 1.2fr; }
.about-block-split.reverse .about-text-side { grid-column: 2; }
.about-block-split.reverse .about-image-side { grid-column: 1;
grid-row: 1; }
.about-text-side p { font-size: 1.1rem; color: var(--text-slate); margin-bottom: 20px; text-align: justify; line-height: 1.8; }
.about-text-side p:last-child { margin-bottom: 0; }
.about-image-side { position: sticky; top: 110px; z-index: 10; }
.about-image-wrapper { position: relative; width: 100%; }
.about-image-wrapper::before { content: ''; position: absolute;
top: 15px; left: 15px; width: 100%; height: 100%; background-color: var(--light-blue-200); border-radius: 24px; z-index: 1; transition: var(--transition-smooth); }
.about-block-split.reverse .about-image-wrapper::before { left: -15px; }
.about-premium-img { position: relative; width: 100%; height: auto; max-height: 420px; object-fit: cover; border-radius: 24px;
box-shadow: var(--shadow-corporate); border: 4px solid var(--white); z-index: 2; transition: var(--transition-smooth); display: block; }
.about-image-wrapper:hover .about-premium-img { transform: translate(-6px, -6px); box-shadow: var(--shadow-card-hover); }
.about-block-split.reverse .about-image-wrapper:hover .about-premium-img { transform: translate(6px, -6px); }
.about-image-wrapper:hover::before { transform: translate(6px, 6px); background-color: var(--sky-blue-light); opacity: 0.5; }
.about-block-split.reverse .about-image-wrapper:hover::before { transform: translate(-6px, 6px); }
.m-top-50 { margin-top: 50px; }

/* --- ТАЙМЛАЙН --- */
.timeline-section { padding: 80px 20px 40px 20px; }
.timeline-container { position: relative; max-width: 1000px; margin: 0 auto;
padding: 20px 0; }
.timeline-line { position: absolute; left: 50%; top: 0; bottom: 0; width: 4px;
background: linear-gradient(to bottom, var(--sky-blue) 0%, var(--sky-blue-dark) 100%); transform: translateX(-50%); border-radius: 2px; }
.timeline-item { position: relative; width: 50%; padding: 20px 40px;
margin-bottom: 20px; }
.left-item { left: 0; text-align: right; }
.right-item { left: 50%; text-align: left; }
.timeline-dot { position: absolute; top: 26px;
width: 18px; height: 18px; border-radius: 50%; background-color: var(--white); border: 4px solid var(--sky-blue-light); z-index: 10; transition: var(--transition-smooth); }
.left-item .timeline-dot { right: -9px; }
.right-item .timeline-dot { left: -9px; }
.timeline-item:hover .timeline-dot { background-color: var(--sky-blue-dark); transform: scale(1.2); border-color: var(--light-blue-200); }
.timeline-date { font-size: 1.4rem; font-weight: 800; color: var(--sky-blue-dark); margin-bottom: 8px; }
.timeline-content-card { background-color: var(--light-grey); padding: 22px; border-radius: 16px; box-shadow: var(--shadow-soft);
border-top: 4px solid var(--sky-blue); transition: var(--transition-smooth); text-align: left; }
.timeline-content-card p { font-size: 1rem; color: var(--text-slate); line-height: 1.6; }
.timeline-item:hover .timeline-content-card { transform: translateY(-4px); background-color: var(--white); box-shadow: var(--shadow-corporate); border-top-color: var(--sky-blue-dark); }

/* --- ЗАНИМАНИЯ & ЦИТАТ --- */
.hobby-activities-section { background-color: var(--light-blue-100); border-top: 1px solid var(--light-blue-200); }
.hobby-grid { display: grid;
grid-template-columns: repeat(3, 1fr); gap: 30px; }
.hobby-card { background-color: var(--white); border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-soft); border: 1px solid var(--light-blue-200);
transition: var(--transition-smooth); display: flex; flex-direction: column; }
.hobby-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); border-color: var(--light-blue-300); }
.hobby-img-wrapper { width: 100%; height: 220px;
overflow: hidden; position: relative; border-bottom: 4px solid var(--light-blue-100); }
.hobby-img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-smooth); }
.hobby-card:hover .hobby-img { transform: scale(1.06); }
.hobby-content { padding: 25px; display: flex; flex-direction: column; flex-grow: 1; }
.hobby-title { font-size: 1.25rem;
color: var(--sky-blue-dark); font-weight: 800; margin-bottom: 6px; line-height: 1.4; }
.hobby-leader { font-size: 0.95rem; color: var(--sky-blue); font-weight: 700; margin-bottom: 14px; display: flex;
align-items: center; gap: 6px; }
.hobby-leader i { font-size: 0.85rem; }
.hobby-description { font-size: 0.95rem; color: var(--text-slate); line-height: 1.6; text-align: justify; }

.quote-section { background-color: var(--white); padding: 90px 20px; }
.quote-wrapper { max-width: 850px; margin: 0 auto; text-align: center; position: relative;
background: linear-gradient(135deg, var(--light-blue-100) 0%, var(--light-blue-200) 100%); padding: 50px 40px; border-radius: 30px; box-shadow: var(--shadow-soft); border-left: 6px solid var(--sky-blue); }
.quote-icon { font-size: 2.5rem; color: var(--sky-blue-light); opacity: 0.4; margin-bottom: 15px; display: block; }
.quote-text { font-size: 1.3rem; font-weight: 700; color: var(--sky-blue-dark);
font-style: italic; line-height: 1.7; margin-bottom: 20px; }
.quote-author { font-size: 1rem; font-weight: 800; color: var(--text-slate); text-transform: uppercase; letter-spacing: 0.5px; }

/* --- FOOTER --- */
.main-footer { background-color: var(--light-blue-100); border-top: 1px solid var(--light-blue-200); padding: 70px 0 25px 0; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-logo-wrapper { display: flex; align-items: center; gap: 12px; margin-bottom: 15px; }
.footer-logo { height: 44px; width: auto; }
.footer-school-name { font-size: 1.35rem; font-weight: 800; color: var(--sky-blue-dark); }
.footer-motto { font-style: italic; color: var(--text-slate); }
.footer-title { font-size: 1.1rem; color: var(--sky-blue-dark); font-weight: 800; margin-bottom: 20px; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-slate); font-weight: 600; transition: var(--transition-smooth); }
.footer-links a:hover { color: var(--sky-blue); padding-left: 5px; }
.work-time { color: var(--text-slate); font-weight: 600; }
.work-time i { color: var(--sky-blue); margin-right: 5px; }
.social-title { margin-top: 20px; margin-bottom: 12px; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a { width: 38px; height: 38px; background-color: var(--white); border: 1px solid var(--light-blue-200);
color: var(--sky-blue); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: var(--transition-smooth); }
.footer-socials a:hover { background-color: var(--sky-blue); color: var(--white); transform: translateY(-3px); }
.footer-bottom { padding-top: 20px; border-top: 1px solid var(--light-blue-200); font-size: 0.9rem; color: var(--text-slate); }

/* --- RESPONSIVE МЕДИЯ КУЕРИТА --- */
@media (max-width: 992px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .hobby-grid { grid-template-columns: repeat(2, 1fr); } 
    .about-block-split, .about-block-split.reverse { grid-template-columns: 1fr; gap: 40px; }
    .about-block-split.reverse .about-text-side { grid-column: auto; }
    .about-block-split.reverse .about-image-side { grid-column: auto; grid-row: auto; }
    .about-image-side { position: relative; top: 0; }
    .about-image-wrapper::before { top: 10px; left: 10px; }
    .about-block-split.reverse .about-image-wrapper::before { left: -10px; }
    .timeline-line { left: 30px; }
    .timeline-item { width: 100%; padding-left: 70px; padding-right: 20px; text-align: left; }
    .left-item, .right-item { left: 0; }
    .left-item .timeline-dot, .right-item .timeline-dot { left: 21px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-about { grid-column: span 2; }
}

@media (max-width: 768px) {
    .section { padding: 40px 0; }
    .nav-links { display: none; }
    
    .mobile-only-link { display: block !important; }

    .footer-grid, 
    .features-grid, 
    .news-grid, 
    .documents-grid,
    .hobby-grid { 
        grid-template-columns: 1fr !important;
    }
    
    .footer-about { grid-column: 1 / -1 !important; }
    img { max-width: 100%; height: auto; }
}

@media (max-width: 480px) {
    .section-title { font-size: 1.8rem; }
    .section-subtitle { font-size: 1rem; }
    .nav-logo .logo-text { font-size: 1.15rem; }
    
    .timeline-item { padding-left: 50px; padding-right: 10px; }
    .timeline-line { left: 20px; }
    .left-item .timeline-dot, .right-item .timeline-dot { left: 11px; }
    
    .stats-grid { grid-template-columns: 1fr; gap: 20px; }
    
    .quote-section { padding: 50px 20px; }
    .quote-wrapper { padding: 30px 20px; }
    .quote-text { font-size: 1.1rem; }
}