:root {

    /* ========= PRIMARY THEME ========= */
    --primary-dark: #0f2b3dcf;
    --primary-blue: #1b4a6e;
    --primary-light-blue: #2c7da0;

    /* ========= GOLD / ORANGE ========= */
    --gold: #f39c12;
    --orange: #e67e22;
    --deep-orange: #d35400;
    --light-gold: #FFE5A3;

    /* ========= RED / WARNING ========= */
    --danger: #F44336;
    --danger-dark: #dc3545;
    --warning: #FF8F00;
    --accent-orange: #FF5722;
    --accent-light: #FFAB91;
    --brown: #BF360C;
    --hover-orange: #E65100;

    /* ========= TEXT ========= */
    --text-dark: #1e4663;
    --text-muted: #5f7f9e;
    --text-brown: #b45f1b;
    --white: #ffffff;

    /* ========= BACKGROUND ========= */
    --bg-light: #f8fafc;
    --bg-soft: #f9fbfd;
    --bg-soft-blue: #fafdff;
    --bg-hover-blue: #f1f8fe;
    --bg-divider: #e9f0f5;
    --bg-org: #fef5e7;

    /* ========= BORDER ========= */
    --border-light: #e2edf7;
    --border-soft: #f0e6d2;
    --border-blue: #bdd4e7;

    /* ========= SHADOW ========= */
    --shadow-dark: rgba(0, 0, 0, 0.25);
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-orange: rgba(230, 126, 34, 0.3);
    --shadow-orange-hover: rgba(230, 126, 34, 0.4);
    --shadow-submit: rgba(0, 32, 64, 0.15);

    /* ========= GLASS ========= */
    --glass-gold: rgba(255, 215, 140, 0.15);
    --glass-gold-strong: rgba(255, 215, 140, 0.25);
    --glass-white: rgba(255, 255, 255, 0.2);

    /* ========= OTHER ========= */
    --white-soft: rgba(255, 255, 255, 0.96);
    --yellow-border: rgba(255, 193, 7, 0.3);
    --focus-shadow: rgba(44, 125, 160, 0.2);

}

/* Hero Section with dual-layer background */
body {
    background-image: url(/img/ho.jpeg);
    background-repeat: no-repeat;
    background-size: cover;
}

h2 {
    font-size: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    text-align: start;
    margin-bottom: 2rem;
}

.section-header img {
    width: 15%;
    margin-right: 1rem;
}

.hero-camp {
    height: 100vh;
    position: relative;
    background: linear-gradient(135deg,
            var(--primary-dark) 0%,
            var(--primary-blue) 100%);
    padding: 3rem 0 4rem 0;
    overflow-x: hidden;
}

.sanskrit-motto {
    font-size: 1.4rem;
    letter-spacing: 2px;
    font-weight: 500;
    background: var(--glass-gold);
    display: inline-block;
    padding: 0.3rem 1.5rem;
    border-radius: 60px;
    backdrop-filter: blur(4px);
}

.event-title {
    font-size: 2.6rem;
    font-weight: 800;
    background: linear-gradient(to right,
            var(--white),
            var(--light-gold));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.date-chip {
    background: var(--glass-gold-strong);
    border-radius: 50px;
    padding: 0.5rem 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(5px);
    font-weight: 500;
}

/* Training Highlights Card */
.highlight-card {
    background: var(--white-soft);
    backdrop-filter: blur(2px);
    border-radius: 2rem;
    padding: 1.8rem 1.5rem;
    box-shadow: 0 25px 35px -12px var(--shadow-dark);
    transition: transform 0.2s ease;
    border: 1px solid var(--yellow-border);
}

.highlight-card:hover {
    transform: translateY(-5px);
}

.step-badge {
    background: var(--orange);
    width: 38px;
    height: 38px;
    border-radius: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: 0 5px 10px var(--shadow-light);
}

.list-item-custom {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    align-items: center;
    gap: 12px;
}

.bg-custom-badge {
    background: linear-gradient(95deg,
            var(--gold),
            var(--orange));
}

.btn-gold {
    background: linear-gradient(95deg,
            var(--gold),
            var(--orange));
    border: none;
    padding: 0.8rem 2rem;
    font-weight: 700;
    border-radius: 3rem;
    transition: all 0.25s;
    box-shadow: 0 8px 18px var(--shadow-orange);
    color: var(--white);
}

.btn-gold:hover {
    background: linear-gradient(95deg,
            var(--orange),
            var(--deep-orange));
    transform: scale(1.02);
    box-shadow: 0 12px 22px var(--shadow-orange-hover);
    color: var(--white);
}

.org-badge {
    background: var(--bg-org);
    border-radius: 2rem;
    padding: 0.5rem 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-brown);
}

.registration-card {
    border: none;
    border-radius: 1.5rem;
    box-shadow: 0 25px 45px -12px var(--shadow-dark);
    overflow: hidden;
    transition: transform 0.2s;
    margin: 1rem 0;
}

.card-header-custom {
    background: linear-gradient(98deg,
            var(--danger) 0%,
            var(--warning) 100%);
    padding: 0.8rem 2rem;
    border-bottom: none;
}

.card-body {
    overflow-y: scroll;
    height: 550px;
}

.badge-icon {
    background-color: var(--glass-white);
    padding: 8px 14px;
    border-radius: 40px;
    font-size: 0.8rem;
}

.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-dark);
    margin-bottom: 0.4rem;
    letter-spacing: -0.2px;
}

.required-star {
    color: var(--danger-dark);
    font-size: 1rem;
    margin-left: 2px;
}

.input-group-text-custom {
    background-color: var(--bg-light);
    border-right: none;
}

.form-control,
.form-select {
    border: 1.5px solid var(--border-light);
    border-radius: 0.75rem;
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
    transition: all 0.2s;
    background-color: var(--white);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-light-blue);
    box-shadow: 0 0 0 3px var(--focus-shadow);
}

.form-check .form-check-input {
    border: 2px solid var(--brown);
}

.photo-upload-box {
    border: 2px dashed var(--border-blue);
    border-radius: 1rem;
    background-color: var(--bg-soft-blue);
    padding: 1.2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.photo-upload-box:hover {
    background-color: var(--bg-hover-blue);
    border-color: var(--hover-orange);
}

.preview-img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: 0 6px 12px var(--shadow-light);
    margin-bottom: 0.5rem;
}

.gender-group {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
    padding: 0.5rem 0 0.2rem 0;
}

.gender-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-soft);
    padding: 0.35rem 1rem;
    border-radius: 2rem;
    border: 1px solid var(--border-light);
}

.btn-submit {
    background: linear-gradient(98deg,
            var(--danger) 0%,
            var(--warning) 100%);
    border: none;
    padding: 0.9rem;
    font-weight: 700;
    font-size: 1rem;
    border-radius: 2rem;
    transition: all 0.25s;
    box-shadow: 0 6px 14px var(--shadow-submit);
}

.btn-submit:hover {
    background: linear-gradient(98deg,
            var(--warning) 0%,
            var(--danger) 100%);
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -8px var(--shadow-dark);
}

.form-check-input:checked {
    background-color: var(--accent-orange);
    border-color: var(--accent-light);
}

.section-divider {
    background: var(--bg-divider);
    height: 2px;
    width: 100%;
    margin: 1.2rem 0;
}

.alert-custom {
    border-radius: 1rem;
    font-weight: 500;
}

small.hint {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
    display: inline-block;
}

@media (max-width: 768px) {
    .gender-group {
        gap: 0.8rem;
    }

    .card-header-custom {
        padding: 1.2rem 1.5rem;
    }
}

@media (max-width: 576px) {
    h2 {
        font-size: 1.2rem;
    }

    .badge-icon {
        font-size: 0.6rem;
    }

    .hero-camp {
        padding: 2rem 0 4rem 0;
    }

    .sanskrit-motto {
        font-size: 1rem;
    }

    .event-title {
        font-size: 2rem;
    }

    .section-header {
        display: block;
        text-align: center;
        margin-bottom: 2rem;
    }

    .section-header img {
        width: 25%;
        margin-bottom: 1rem;
        margin-right: 0rem;
    }
}