/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #f59e0b;
    --color-primary-dark: #d97706;
    --color-primary-light: #fbbf24;
    --color-accent: #0ea5e9;
    --color-dark: #1e293b;
    --color-gray: #64748b;
    --color-light: #f1f5f9;
    --color-white: #ffffff;
    --color-bg: #fafaf9;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,.15);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: .3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--color-dark);
    background: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

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

img {
    display: block;
    max-width: 100%;
    height: auto;
}

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: 2px solid transparent;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}
.btn--primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245,158,11,.35);
}

.btn--outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}
.btn--outline:hover {
    background: var(--color-white);
    color: var(--color-dark);
    transform: translateY(-2px);
}

.btn--secondary {
    background: var(--color-light);
    color: var(--color-dark);
    border-color: var(--color-light);
}
.btn--secondary:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.btn--nav {
    padding: 8px 22px;
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    font-size: .85rem;
}
.btn--nav:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn--lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn--full {
    width: 100%;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    padding: 10px 0;
}

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

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: 4px;
}

.header.scrolled .logo {
    color: var(--color-dark);
}

.logo__accent {
    color: var(--color-primary);
}

.logo__icon {
    font-size: 1.4rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__link {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: .9rem;
    color: rgba(255,255,255,.9);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav__link:hover::after {
    width: 100%;
}

.header.scrolled .nav__link {
    color: var(--color-dark);
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.burger span {
    width: 26px;
    height: 3px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition);
}

.header.scrolled .burger span {
    background: var(--color-dark);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('../img/hero.jpg') center/cover no-repeat;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,23,42,.8) 0%, rgba(30,41,59,.6) 100%);
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 120px 0 80px;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    color: var(--color-white);
    margin-bottom: 20px;
}

.highlight {
    color: var(--color-primary);
    position: relative;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,.85);
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 0;
}

.section__title {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 12px;
    position: relative;
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
    margin: 16px auto 0;
}

.section__subtitle {
    text-align: center;
    color: var(--color-gray);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto 60px;
}

/* ===== ABOUT ===== */
.about {
    background: var(--color-white);
}

.about__intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 60px;
}

.about__intro-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: 16px;
}

.about__intro-text p strong {
    color: var(--color-dark);
}

.about__intro-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.about__intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/3;
}

.about__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.about__card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.about__card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.about__icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.about__card-title {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.about__card p {
    color: var(--color-gray);
    font-size: .95rem;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    background: linear-gradient(135deg, var(--color-dark) 0%, #334155 100%);
    border-radius: var(--radius-lg);
    padding: 50px 40px;
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.stat__label {
    color: rgba(255,255,255,.75);
    font-size: .9rem;
}

/* ===== MISSION ===== */
.mission {
    background: var(--color-bg);
}

.mission__content {
    max-width: 900px;
    margin: 0 auto 50px;
}

.mission__text {
    margin-bottom: 50px;
}

.mission__text p {
    font-size: 1.08rem;
    line-height: 1.85;
    color: var(--color-gray);
    margin-bottom: 20px;
}

.mission__text p strong {
    color: var(--color-dark);
}

.mission__help-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--color-dark);
}

.mission__help-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.mission__help-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 30px 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.mission__help-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.mission__help-icon {
    font-size: 2rem;
    flex-shrink: 0;
    line-height: 1;
}

.mission__help-card h4 {
    font-size: 1.05rem;
    margin-bottom: 6px;
    color: var(--color-dark);
}

.mission__help-card p {
    font-size: .9rem;
    color: var(--color-gray);
    line-height: 1.5;
}

.mission__quote {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.mission__quote blockquote {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    font-style: italic;
    color: var(--color-dark);
    line-height: 1.6;
    padding: 40px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border-left: 5px solid var(--color-primary);
    position: relative;
}

.mission__quote blockquote::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 4rem;
    color: var(--color-primary-light);
    font-family: Georgia, serif;
    line-height: 1;
    opacity: .4;
}

/* ===== GALLERY ===== */
.gallery {
    background: var(--color-bg);
}

.gallery__tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.gallery__tab {
    padding: 12px 32px;
    border: 2px solid var(--color-light);
    background: var(--color-white);
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--color-gray);
}

.gallery__tab.active,
.gallery__tab:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.gallery__content {
    display: none;
}

.gallery__content.active {
    display: block;
    animation: fadeIn .4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.gallery__item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4/3;
}

.gallery__item--wide {
    grid-column: span 2;
}

.gallery__item--tall {
    grid-row: span 2;
    aspect-ratio: auto;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery__item:hover img {
    transform: scale(1.08);
}

.gallery__item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.7), transparent);
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: var(--transition);
}

.gallery__item:hover .gallery__item-overlay {
    opacity: 1;
}

.gallery__item-overlay span {
    color: var(--color-white);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: .95rem;
}

/* Videos */
.gallery__grid--videos {
    grid-template-columns: repeat(3, 1fr);
}

.gallery__video-item {
    border-radius: var(--radius);
    overflow: hidden;
}

.video-placeholder {
    position: relative;
    cursor: pointer;
    aspect-ratio: 16/9;
    border-radius: var(--radius);
    overflow: hidden;
}

.video-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.video-placeholder:hover img {
    transform: scale(1.05);
    filter: brightness(.75);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(245,158,11,.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: white;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(245,158,11,.4);
}

.video-placeholder:hover .play-btn {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--color-primary);
}

.video-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(to top, rgba(0,0,0,.8), transparent);
    color: white;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: .9rem;
}

/* Upload area */
.gallery__upload {
    text-align: center;
    margin-top: 40px;
    padding: 30px;
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    background: var(--color-white);
}

.upload-hint {
    display: block;
    color: var(--color-gray);
    margin: 16px 0 12px;
    font-size: .9rem;
}

.youtube-input {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.youtube-input .input {
    flex: 1;
}

/* ===== CONTACTS ===== */
.contacts {
    background: var(--color-white);
}

.contacts__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contacts__grid--centered {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
}

.contacts__info-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-light);
}

.contacts__info-card:last-of-type {
    border-bottom: none;
}

.contacts__info-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.contacts__info-card h4 {
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--color-gray);
    margin-bottom: 4px;
}

.contacts__info-card p {
    font-size: 1rem;
}

.contacts__info-card a {
    color: var(--color-primary-dark);
}
.contacts__info-card a:hover {
    color: var(--color-primary);
}

.contacts__social {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.social-link {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-dark);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

/* Form */
.contacts__form {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contacts__form-title {
    font-size: 1.3rem;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius);
    font-family: 'Open Sans', sans-serif;
    font-size: .95rem;
    transition: var(--transition);
    background: var(--color-white);
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(245,158,11,.15);
}

.textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-dark);
    padding: 40px 0;
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer__logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-white);
}

.footer__text {
    color: rgba(255,255,255,.5);
    font-size: .85rem;
    text-align: center;
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__links a {
    color: rgba(255,255,255,.6);
    font-size: .9rem;
}
.footer__links a:hover {
    color: var(--color-primary);
}

/* ===== LIGHTBOX ===== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.92);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox__content {
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox__content img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    background: none;
    border: none;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    padding: 10px;
    transition: var(--transition);
    z-index: 10;
}

.lightbox__close {
    top: 20px;
    right: 30px;
    font-size: 3rem;
}

.lightbox__prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
    color: var(--color-primary);
}

/* ===== VIDEO MODAL ===== */
.video-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.92);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.video-modal.active {
    display: flex;
}

.video-modal__close {
    position: absolute;
    top: 20px;
    right: 30px;
    background: none;
    border: none;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    z-index: 10;
}

.video-modal__content {
    width: 80vw;
    max-width: 900px;
    aspect-ratio: 16/9;
}

.video-modal__content iframe,
.video-modal__content video {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--radius);
}

/* ===== TOAST ===== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--color-dark);
    color: var(--color-white);
    padding: 16px 28px;
    border-radius: var(--radius);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: .9rem;
    box-shadow: var(--shadow-lg);
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .about__intro {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .about__grid {
        grid-template-columns: 1fr;
    }
    .about__stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .mission__help-grid {
        grid-template-columns: 1fr;
    }
    .gallery__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .gallery__item--wide {
        grid-column: span 1;
    }
    .gallery__item--tall {
        grid-row: span 1;
        aspect-ratio: 4/3;
    }
    .gallery__grid--videos {
        grid-template-columns: repeat(2, 1fr);
    }
    .contacts__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        padding: 80px 30px 40px;
        gap: 24px;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
    }
    .nav.open {
        right: 0;
    }
    .nav__link {
        color: var(--color-dark) !important;
        font-size: 1.1rem;
    }
    .burger {
        display: flex;
        z-index: 1001;
    }
    .burger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .burger.active span:nth-child(2) {
        opacity: 0;
    }
    .burger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    .hero__title {
        font-size: 2.2rem;
    }
    .hero__content {
        padding: 100px 0 60px;
    }
    .section {
        padding: 70px 0;
    }
    .about__stats {
        padding: 30px 20px;
    }
    .stat__number {
        font-size: 2rem;
    }
    .gallery__grid,
    .gallery__grid--videos {
        grid-template-columns: 1fr;
    }
    .youtube-input {
        flex-direction: column;
    }
    .footer__inner {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}