/* ===== SPONSORS PAGE ===== */
.sponsor-body {
    padding: 0;
    flex: 1;
    background: var(--gray-50);
}

/* --- Hero Header --- */
.sponsor-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
    padding: 2.5rem 1.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.sponsor-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(59,130,246,0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(245,158,11,0.06) 0%, transparent 50%);
    animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-20px, -10px); }
}

.sponsor-hero-content {
    position: relative;
    z-index: 1;
    max-width: 500px;
    margin: 0 auto;
}

.sponsor-hero-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: white;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.2rem;
    box-shadow: 0 8px 32px rgba(245,158,11,0.35);
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { box-shadow: 0 8px 32px rgba(245,158,11,0.35); }
    50% { box-shadow: 0 8px 48px rgba(245,158,11,0.5); }
}

.sponsor-hero h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.sponsor-hero p {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    max-width: 420px;
    margin: 0 auto;
}

/* --- Section Label --- */
.sponsor-section-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1.5rem 1.5rem 0.8rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-400, #94a3b8);
}

.sponsor-section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200, #e2e8f0);
}

/* --- Cards Container --- */
.sponsors-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0 1rem 2rem;
}

/* --- Unified Sponsor Card --- */
.sponsor-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    text-decoration: none;
    background: var(--white, #ffffff);
    padding: 1.5rem 1.4rem;
    border-radius: var(--radius-lg, 20px);
    border: 1px solid var(--gray-200, #e2e8f0);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 0 1px rgba(0,0,0,0.08);
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.sponsor-card:active {
    transform: scale(0.98);
}

.sponsor-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1), 0 0 1px rgba(0,0,0,0.08);
    border-color: var(--gray-400, #94a3b8);
}

/* --- Logo --- */
.sponsor-logo {
    width: 100px;
    height: 100px;
    border-radius: 18px;
    flex-shrink: 0;
    overflow: hidden;
    background: var(--gray-100, #f1f5f9);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-200, #e2e8f0);
}

.sponsor-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.sponsor-logo-black img {
    filter: brightness(0) saturate(0%);
}

/* --- Logo (icon) --- */
.sponsor-logo-icon {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    border-color: #a7f3d0;
    color: #25d366;
    font-size: 2.5rem;
}

/* --- Invite Card Variant --- */
.sponsor-card-invite {
    border-style: dashed;
    border-color: #94a3b8;
    background: linear-gradient(135deg, var(--white, #ffffff) 0%, #f8fafc 100%);
}

.sponsor-card-invite:hover {
    border-color: #25d366;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.sponsor-card-invite .sponsor-logo-icon {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-color: #25d366;
    color: #25d366;
}

body.dark-theme .sponsor-card-invite {
    background: linear-gradient(135deg, #0d2137 0%, #0f2940 100%);
    border-color: #2a5080;
}

body.dark-theme .sponsor-card-invite:hover {
    border-color: #34d399;
    background: linear-gradient(135deg, #0d2137 0%, #0a2e1f 100%);
}

body.dark-theme .sponsor-card-invite .sponsor-logo-icon {
    background: linear-gradient(135deg, #0a2e1f, #14532d);
    border-color: #34d399;
    color: #34d399;
}

/* --- Text Info --- */
.sponsor-info {
    flex: 1;
    min-width: 0;
}

.sponsor-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-800, #1e293b);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.sponsor-info p {
    font-size: 0.88rem;
    color: var(--gray-500, #64748b);
    line-height: 1.5;
    margin: 0;
    overflow: visible;
}

/* --- Arrow --- */
.sponsor-arrow {
    color: var(--gray-400, #94a3b8);
    font-size: 1rem;
    flex-shrink: 0;
    transition: color 0.2s, transform 0.2s;
}

.sponsor-card:hover .sponsor-arrow {
    color: var(--gray-700, #334155);
    transform: translateX(3px);
}

/* --- Hidden --- */
.hidden { display: none !important; }

/* ===== DARK THEME ===== */
body.dark-theme .sponsor-body { background: #0a1929; }

body.dark-theme .sponsor-card {
    background: #0d2137;
    border-color: #1a3a5c;
}

body.dark-theme .sponsor-card:hover {
    border-color: #2a5080;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

body.dark-theme .sponsor-logo {
    background: #1a3a5c;
    border-color: #243f5e;
}

body.dark-theme .sponsor-info h4 { color: #e2e8f0; }
body.dark-theme .sponsor-info p { color: #8696a7; }
body.dark-theme .sponsor-arrow { color: #4a6a8a; }
body.dark-theme .sponsor-card:hover .sponsor-arrow { color: #94b8d8; }

body.dark-theme .sponsor-section-label { color: #4a6a8a; }
body.dark-theme .sponsor-section-label::after { background: #1a3a5c; }

/* ===== RESPONSIVE ===== */
@media (min-width: 640px) {
    .sponsor-hero { padding: 3rem 2rem 2.5rem; }
    .sponsor-hero h2 { font-size: 1.75rem; }
    .sponsors-list {
        max-width: 600px;
        margin: 0 auto;
        padding: 0 1.5rem 2.5rem;
    }
}