.gulf-spectrum {
    position: relative;
    padding: 150px 20px 80px;
    background: var(--color-bg-2);
    color: var(--color-text);
    font-family: 'Poppins', sans-serif;
    overflow: hidden;
}


.gulf-spectrum::before {
    content: '';
    position: absolute;
    inset: 0;
    background:var(--color-bg);
    z-index: 1;
}

.gulf-spectrum::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 25% 25%, rgba(228,54,54,0.08) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255,107,107,0.05) 0%, transparent 50%);
    z-index: 1;
    animation: pulseGlow 12s ease-in-out infinite;
}

.gulf-spectum-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
}


.gulf-spectrum-header h2 {
    text-align: center;
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 50px;
    background: linear-gradient(135deg, var(--color-text), var(--color-primary));
    background-clip: text;
    -webkit-text-fill-color: transparent;
}


.gulf-spectrum-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
    list-style: none;
    padding: 0;
}

.popup-content {
  max-width: 90%;
  max-height: 80vh;
  transition: transform 0.2s ease;
  touch-action: none; /* required for pinch on mobile */
}



.gulf-spectrum-categories li button {
    background: var(--color-bg-soft);
    color: var(--color-text);
    padding: 12px 25px;
    border: 2px solid var(--color-primary);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--animation-smooth);
}

.gulf-spectrum-categories li button:hover,
.gulf-spectrum-categories li button.active {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
}


.gulf-spectrum-images {
    display: flex;
    flex-direction: column;
    gap: 60px;
}


.single-spectrum-image {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    background: var(--color-bg-soft);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-strong);
    transition: transform var(--animation-smooth);
}

.single-spectrum-image:hover {
    transform: translateY(-5px);
}


.image-gulf {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-gulf img {
    width: 50%;
    height: 50%;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}


.gulf-spectrum-info {
    flex: 1;
    color: var(--color-text);
}

.gulf-spectrum-info h3 {
    font-size: clamp(24px, 2.5vw, 32px);
    margin-bottom: 15px;
    color: var(--color-primary);
}

.gulf-spectrum-info p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    color: var(--color-text-muted);
}

.view-image a {
    display: inline-block;
    padding: 10px 20px;
    background: var(--color-primary);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--animation-smooth);
}

.view-image a:hover {
    background: rgba(228,54,54,0.9);
    transform: translateY(-2px);
}


.popup {
    display: none;
    position: fixed;
    z-index: 10000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    justify-content: center;
    align-items: center;
}

.popup-content {
    max-width: 90%;
    max-height: 80%;
    border-radius: 12px;
}

.popup-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 36px;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.3s;
}

.popup-close:hover {
    color: var(--color-text);
}


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


@media (max-width: 900px) {
    .single-spectrum-image {
        flex-direction: column;
        text-align: center;
    }

    .image-gulf img {
        width: 70%;
        height: auto;
    }
}