:root {
    --primary-dark: #1a2744;
    --accent-purple: #7c3aed;
    --accent-orange: #d97706;
    --accent-magenta: #a21caf;
    --card-bg: #fdf8f0;
    --card-border: #e8e0d0;
    --text-dark: #1a1a2e;
    --text-muted: #6b7280;
    --badge-neet: #a21caf;
    --badge-jee: #7c3aed;
    --tab-active-bg: #1a2744;
    --tab-active-text: #ffffff;
    --tab-inactive-border: #d1d5db;
    --section-bg: #ffffff;
    --avatar-placeholder-bg: #fdf8f0;
    --avatar-placeholder-border: #d97706;
    --avatar-placeholder-text: #d97706;
}

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

body {
    background: #f4f4f4;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
}

.students-section {
    background: var(--section-bg);
    padding: 32px 40px 40px;
    border-radius: 16px;
    margin: 40px auto;
    max-width: 1200px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

/* ===== TABS ===== */
.tab-group {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
}

.tab-btn {
    padding: 8px 28px;
    border-radius: 999px;
    border: 2px solid var(--tab-inactive-border);
    background: transparent;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.22s ease;
    outline: none;
}

.tab-btn:hover {
    border-color: var(--primary-dark);
    color: var(--primary-dark);
}

.tab-btn.active {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

/* ===== SLIDER WRAPPER ===== */
.slider-wrapper {
    position: relative;
}

.slider-track-outer {
    overflow: hidden;
    width: 100%;
}

.slider-track {
    display: flex;
    gap: 20px;
    transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.students-section h3{
    font-size: 34px;
    color: #121212;
    font-weight: 800;
    text-align: center;
    font-family: Poppins, sans-serif;
    margin-bottom: 3rem;
}

/* ===== STUDENT CARD ===== */
.student-card {
    flex: 0 0 calc((100% - 60px) / 4);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: box-shadow 0.22s, transform 0.22s;
    position: relative;
}

.student-card:hover {
    box-shadow: 0 8px 32px rgba(26, 39, 68, 0.13);
    transform: translateY(-3px);
}

/* Badge */
.badge-tag {
    position: absolute;
    top: 0;
    right: 0;
    padding: 5px 14px;
    border-radius: 0 16px 0 12px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fff;
    z-index: 2;
}

.badge-neet {
    background: var(--badge-neet);
}

.badge-jee {
    background: var(--badge-jee);
}

/* Avatar area */
.card-avatar-area {
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 0 20px;
    min-height: 150px;
}

.avatar-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    object-position: top;
    border: 3px solid #e8e0d0;
    display: block;
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2.5px solid var(--avatar-placeholder-border);
    background: var(--avatar-placeholder-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    color: var(--avatar-placeholder-text);
    letter-spacing: 1px;
}

/* Card body */
.card-body-custom {
    padding: 14px 18px 20px;
    background: #fff;
    border-top: 1px solid #f0ede6;
}

.student-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.info-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 9px;
}

.info-row:last-child {
    margin-bottom: 0;
}

.info-icon {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 2px;
    flex-shrink: 0;
}

.info-label {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.2;
    font-weight: 400;
}

.info-value {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
}

/* ===== NAV ARROWS ===== */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--card-border);
    color: var(--primary-dark);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    z-index: 10;
}

.slider-arrow:hover {
    background: var(--primary-dark);
    color: #fff;
    border-color: var(--primary-dark);
}

.slider-arrow:disabled {
    opacity: 0.35;
    cursor: default;
    pointer-events: none;
}

.arrow-prev {
    left: -20px;
    display: none;
}

.arrow-next {
    right: -20px;
    display: none;
}

/* Dots */
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 7px;
    margin-top: 22px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--card-border);
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.dot.active {
    background: var(--primary-dark);
    transform: scale(1.3);
}

/* Hidden cards for filtering */
.student-card.hidden {
    display: none;
}

@media (max-width: 900px) {
    .student-card {
        flex: 0 0 calc((100% - 20px) / 2);
    }

    .students-section {
        padding: 24px 16px 32px;
    }

    .arrow-prev {
        left: -12px;
    }

    .arrow-next {
        right: -12px;
    }
}

@media (max-width: 540px) {
    .student-card {
        flex: 0 0 100%;
    }
}