/* ============================================================
   HematoForum 2026 — Responsive Styles
   ============================================================ */

/* ---------- Tablet: 768px – 1199px ---------- */
@media (max-width: 1199px) {
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .sponsors-grid-gold {
        grid-template-columns: repeat(2, 1fr);
    }

    .sponsors-grid-silver {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-content {
        gap: 40px;
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .sponsor-card-general {
        padding: 32px;
    }

    .sponsor-card-general .sponsor-logo {
        width: 140px;
        height: 100px;
    }
}

/* ---------- Small Tablet: 768px ---------- */
@media (max-width: 991px) {
    :root {
        --section-padding: 80px 0;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .sections-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .sponsor-card-general {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .sponsor-card-general .sponsor-logo {
        margin: 0 auto;
    }
}

/* ---------- Mobile: <= 767px ---------- */
@media (max-width: 767px) {
    :root {
        --section-padding: 64px 0;
    }

    .container {
        padding: 0 16px;
    }

    /* Header */
    .nav-links {
        display: none;
    }

    .header .lang-switcher {
        margin-left: auto;
        margin-right: 8px;
    }

    .burger-menu {
        display: flex;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
        background:
            linear-gradient(135deg,
                rgba(10, 10, 26, 0.88) 0%,
                rgba(26, 10, 46, 0.85) 40%,
                rgba(45, 10, 10, 0.82) 100%),
            url('../assets/images/backgrounds/background-mobile.jpg') center / cover no-repeat;
    }

    [data-theme="light"] .hero {
        background:
            linear-gradient(135deg,
                rgba(241, 245, 249, 0.88) 0%,
                rgba(237, 233, 254, 0.85) 40%,
                rgba(254, 226, 226, 0.82) 100%),
            url('../assets/images/backgrounds/background-mobile.jpg') center / cover no-repeat;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.15rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-meta {
        flex-direction: column;
        gap: 12px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .countdown-grid {
        gap: 8px;
    }

    .countdown-item {
        padding: 12px 14px;
        min-width: 65px;
    }

    .countdown-number {
        font-size: 1.5rem;
    }

    .hero-deco .cell {
        opacity: 0.3;
    }

    /* About */
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Sections / Tracks */
    .sections-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .section-card {
        padding: 24px 16px;
    }

    .section-card-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    /* Speakers */
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .speaker-card {
        padding: 20px 14px;
    }

    .speaker-avatar {
        width: 80px;
        height: 80px;
    }

    .speaker-name {
        font-size: 0.95rem;
    }

    .speaker-topic {
        font-size: 0.8rem;
    }

    .speakers-filter {
        gap: 6px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    /* Gallery */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    /* Map */
    .map-wrapper iframe {
        height: 300px;
    }

    /* Registration */
    .register-form-wrapper {
        padding: 28px 20px;
    }

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

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    /* Sponsors Page */
    .sponsors-grid-gold {
        grid-template-columns: 1fr;
    }

    .sponsors-grid-silver {
        grid-template-columns: repeat(2, 1fr);
    }

    .sponsors-grid-info {
        gap: 16px;
    }

    .sponsor-card-info {
        min-width: 130px;
    }

    .sponsor-card-general {
        padding: 24px 16px;
        gap: 20px;
    }

    /* Section title */
    .section-title {
        margin-bottom: 40px;
    }
}

/* ---------- Very Small Mobile: <= 480px ---------- */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
        letter-spacing: 1px;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .speakers-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin: 0 auto;
    }

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

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

    .stat-number {
        font-size: 2rem;
    }

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

    .lang-btn {
        padding: 5px 9px;
        font-size: 0.7rem;
    }

    .sponsors-grid-silver {
        grid-template-columns: 1fr;
    }
}