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

body {
    background: #0a0a0a;
    color: #fff;
    font-family: Arial, sans-serif;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
}

/* INTRO OVERLAY */
#intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

#start-btn {
    position: absolute;
    z-index: 1001;
    padding: 30px 60px;
    font-size: 2rem;
    font-weight: bold;
    background: transparent;
    color: #fff;
    border: 3px solid #fff;
    border-radius: 50px;
    cursor: pointer;
    animation: pulse 2s ease-in-out infinite;
    text-transform: uppercase;
    letter-spacing: 4px;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 50px rgba(255,255,255,0.1);
}

#start-btn:hover {
    background: rgba(255,255,255,0.15);
    box-shadow: 0 0 80px rgba(255,255,255,0.2);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

#intro-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

/* ZONE 1 - TOP BAR (1/10 height) */
#zone1 {
    height: 10vh;
    min-height: 50px;
    background: rgba(20, 20, 30, 0.95);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    flex-shrink: 0;
    z-index: 10;
}

#zone1 select {
    background: rgba(255,255,255,0.05);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 8px 15px;
    border-radius: 5px;
    font-size: 0.9rem;
    cursor: pointer;
    min-width: 150px;
}

#zone1 select option {
    background: #1a1a2e;
}

#product-id {
    font-family: monospace;
    font-size: 1.2rem;
    letter-spacing: 2px;
    color: #ffd700;
    text-shadow: 0 0 20px rgba(255,215,0,0.3);
}

/* ZONE 2 - CENTRAL (8/10 height) */
#zone2 {
    flex: 1;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 0;
}

#trailer-video {
    width: auto;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
    background: #000;
}

/* ZONE 3 - BOTTOM BAR */
#zone3 {
    height: 10vh;
    min-height: 60px;
    background: rgba(20, 20, 30, 0.95);
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 0 20px;
    flex-shrink: 0;
    z-index: 10;
    flex-wrap: wrap;
}

#zone3 a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 0.7rem;
    transition: color 0.3s;
}

#zone3 a:hover {
    color: rgba(255,255,255,0.8);
}

#zone3 button {
    background: rgba(255,255,255,0.05);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

#zone3 button:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.3);
}

#play-btn {
    border-color: #00ff88 !important;
    color: #00ff88 !important;
    animation: pulse-btn 1.5s ease-in-out infinite;
}

@keyframes pulse-btn {
    0%, 100% { box-shadow: 0 0 10px rgba(0,255,136,0.2); }
    50% { box-shadow: 0 0 30px rgba(0,255,136,0.5); }
}

#bay-btn {
    background: #ffd700 !important;
    color: #000 !important;
    border-color: #ffd700 !important;
    font-weight: bold;
    border-radius: 25px !important;
    width: auto !important;
    padding: 0 20px;
}

#exit-btn {
    border-color: #ff4444 !important;
    color: #ff4444 !important;
}

/* PAYMENT OVERLAY */
#payment-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

#payment-box {
    background: #1a1a2e;
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(255,215,0,0.3);
    text-align: center;
    max-width: 400px;
    width: 90%;
}

#payment-box h2 {
    color: #ffd700;
    margin-bottom: 20px;
}

#payment-box p {
    margin: 10px 0 20px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
}

#pay-btn {
    background: #ffd700;
    color: #000;
    border: none;
    padding: 12px 40px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    margin-right: 10px;
}

#close-pay-btn {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 12px 30px;
    border-radius: 25px;
    cursor: pointer;
}