/* BRAND COLORS */
:root {
    --bg: #f6f1ee;
    --accent: #00ADCC;
    --text-dark: #333;
    --glass: rgba(255, 255, 255, 0.7);
}

/* SECTION FIX */
.instructor-section {
    margin-bottom: -10px !important;
}

/* PARALLAX SECTION */
.parallax {
    position: relative;
    background-size: cover;
    background-position: center 25%;
    background-attachment: fixed;
    padding: 150px 20px;
}

/* OVERLAY */
.parallax .overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(4px);
}

/* HERO */
.instructor-hero {
    text-align: center;
    padding: 220px 20px;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--text-dark);
}

.hero-content p {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* INSTRUCTOR CARD */
.instructor-card {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: auto;
    display: flex;
    gap: 40px;
    padding: 50px;
    background: var(--glass);
    border-radius: 26px;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 173, 204, 0.25);

    /* Animation */
    opacity: 0;
    transform: translateY(40px);
    transition: 0.9s ease-in-out;
}

.instructor-card.show {
    opacity: 1;
    transform: translateY(0);
}

/* PHOTO WRAPPER – FIX WIDTH, NICE SHAPE */
.instructor-photo {
    flex: 0 0 260px;
    /* FIX WIDTH – anti menyusut */
    width: 260px;
    aspect-ratio: 3 / 4;
    /* Portrait ratio stabil */
    border-radius: 26px;
    overflow: hidden;
    position: relative;
    z-index: 3;

    /* ✨ Soft Glow Frame */
    box-shadow:
        0 0 10px rgba(0, 173, 204, 0.25),
        0 0 25px rgba(0, 173, 204, 0.20),
        0 0 45px rgba(0, 173, 204, 0.15);
}

/* PHOTO IMAGE */
.instructor-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;

    /* inner glow for elegance */
    filter: drop-shadow(0 0 8px rgba(0, 173, 204, 0.25));
}

/* BIO */
.instructor-bio {
    flex: 1;
}

.instructor-bio h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.instructor-bio h4 {
    color: var(--accent);
    margin-bottom: 16px;
    font-weight: 600;
}

/* ✨ UNDERLINE ACCENT */
.instructor-bio h2::after {
    content: "";
    display: block;
    width: 70px;
    height: 4px;
    border-radius: 10px;
    margin-top: 8px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
}

.instructor-bio p {
    line-height: 1.6;
    color: #444;
}

/* ✨ KICKER CIRCLE GLOW */
.kicker-circle {
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: var(--accent);
    filter: blur(90px);
    opacity: 0.35;
    z-index: 1;
}

.kicker-1 {
    top: -40px;
    left: -40px;
}

.kicker-2 {
    bottom: -40px;
    right: -40px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .instructor-card {
        flex-direction: column;
        text-align: center;
        padding: 35px;
    }

    .instructor-photo {
        flex: none;
        width: 220px;
        margin: 0 auto;
    }

    .instructor-bio h2 {
        margin-top: 20px;
    }
}