/* ==========================================================================
   IECCD Minimalist Gateway Landing
   ========================================================================== */

:root {
    --bg-main: #07090e;
    --card-bg: rgba(15, 20, 31, 0.7);
    --border-gold: rgba(212, 175, 55, 0.35);
    --gold-gradient: linear-gradient(135deg, #F8E582 0%, #D4AF37 50%, #9D741E 100%);
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-main);
    font-family: var(--font-sans);
    color: #F3F5F8;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Background Ambient Lighting */
.ambient-glow {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.18) 0%, rgba(20, 30, 48, 0.4) 45%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

/* Container */
.gateway-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 580px;
    padding: 24px;
    display: flex;
    justify-content: center;
}

.gateway-card {
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border-gold);
    border-radius: 28px;
    padding: 36px 32px 30px;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 40px rgba(212, 175, 55, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.gateway-card:hover {
    border-color: rgba(246, 226, 122, 0.6);
}

/* Logo Box */
.logo-box {
    width: 100%;
    max-width: 440px;
    margin-bottom: 30px;
}

.logo-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
    filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.6));
}

/* Big High-Converting Button */
.btn-main-gateway {
    position: relative;
    width: 100%;
    max-width: 440px;
    background: var(--gold-gradient);
    border-radius: 18px;
    padding: 18px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #07090e;
    cursor: pointer;
    box-shadow: 0 12px 35px rgba(212, 175, 55, 0.42), 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
    transform: skewX(-20deg);
    animation: shine 3.5s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    22% { left: 200%; }
    100% { left: 200%; }
}

.btn-main-gateway:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 16px 45px rgba(212, 175, 55, 0.6), 0 0 25px rgba(246, 226, 122, 0.4);
}

.btn-title {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    line-height: 1.3;
}

.btn-url {
    font-size: 0.82rem;
    font-weight: 600;
    opacity: 0.85;
    margin-top: 2px;
}

.btn-arrow {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(7, 9, 14, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.btn-main-gateway:hover .btn-arrow {
    transform: translateY(-50%) translateX(4px);
    background: rgba(7, 9, 14, 0.22);
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .gateway-card {
        padding: 28px 20px 24px;
        border-radius: 22px;
    }
    .btn-title {
        font-size: 0.95rem;
    }
    .btn-arrow {
        display: none;
    }
}