:root {
    /* Prestigious Color Palette */
    --primary-color: #0c213a;
    /* Oxford Blue */
    --primary-light: #1e3a5f;
    --primary-dark: #071221;
    --primary-gradient: linear-gradient(135deg, #0c213a 0%, #1e3a5f 100%);
    --secondary-color: #b08d57;
    /* Classic Gold */
    --secondary-light: #c5a36d;
    --accent-color: #3b82f6;
    --bg-main: #fcfcfc;
    --white: #ffffff;
    --text-main: #0c213a;
    /* Oxford Blue as Primary Text */
    --text-muted: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-premium: 0 20px 40px rgba(12, 33, 58, 0.08);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

/* Institutional Utilities */
.py-100 {
    padding: 100px 0;
}

.text-gold {
    color: var(--gold-accent);
}

.max-w-600 {
    max-width: 600px;
}

.letter-spacing-1 {
    letter-spacing: 1px;
}

.letter-spacing-2 {
    letter-spacing: 2px;
}

.shadow-premium {
    box-shadow: 0 20px 40px rgba(12, 33, 58, 0.08);
}

.transition-base {
    transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f8fafc;
    color: var(--text-main);
    min-height: 100vh;
    letter-spacing: -0.01em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: var(--gold-accent);
}

:root {
    --gold-accent: #b08d57;
    --oxford-blue: #0c213a;
    --slate-600: #475569;
}

/* Institutional Components */
.official-section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    color: var(--gold-accent);
}

.official-section-divider .line {
    width: 60px;
    height: 1px;
    background: #e2e8f0;
}

.institutional-section-title {
    font-weight: 800;
    color: var(--gold-accent);
    letter-spacing: -1px;
}

.official-program-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    padding: 0;
    height: 100%;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
}

.official-program-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(12, 33, 58, 0.1);
}

.card-header-accent {
    height: 5px;
    width: 100%;
}

.card-header-accent.primary {
    background: var(--oxford-blue);
}

.card-header-accent.secondary {
    background: var(--gold-accent);
}

.program-icon-box {
    width: 80px;
    height: 80px;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--oxford-blue);
    margin: 40px auto 30px;
    border-radius: 50%;
    border: 1px solid #eee;
    transition: all 0.3s ease;
}

.program-body {
    padding: 0 40px 40px;
    text-align: center;
}

.program-level {
    display: block;
    font-weight: 800;
    font-size: 0.75rem;
    color: var(--gold-accent);
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.program-title {
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--gold-accent);
}

.program-description {
    font-size: 0.95rem;
    color: var(--slate-600);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.program-meta {
    border-top: 1px solid #f1f5f9;
    padding-top: 1.5rem;
    margin-bottom: 2rem;
}

.meta-item {
    font-size: 0.8rem;
    font-weight: 800;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-program-select {
    display: block;
    width: 100%;
    padding: 1.25rem;
    background: var(--oxford-blue);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-program-select:hover {
    background: var(--gold-accent);
    color: #fff;
}

.btn-royal {
    background: var(--gold-accent);
    color: #fff;
    padding: 1rem 2.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--gold-accent);
    cursor: pointer;
}

.btn-royal:hover {
    background: transparent;
    color: var(--gold-accent);
}

.institutional-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    color: var(--gold-accent);
}

.institutional-subtitle {
    font-size: 1.25rem;
    max-width: 750px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 3rem;
}

/* Mission Section & Features */
.official-tag-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.official-line {
    width: 40px;
    height: 2px;
    background: var(--gold-accent);
}

.official-tag {
    font-weight: 800;
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--gold-accent);
}

.official-feature-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.official-feature-item i {
    font-size: 1.5rem;
    color: var(--gold-accent);
    margin-top: 0.25rem;
}

.official-feature-item h6 {
    font-weight: 800;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Premium Layout */
.premium-container {
    padding: 3rem 0;
}

/* Stunning Glass Card */
.premium-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 2.5rem;
    padding: 4rem;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
}

.premium-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(99, 102, 241, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

@media (max-width: 768px) {
    .premium-card {
        padding: 2rem 1.5rem;
        border-radius: 1.5rem;
    }
}

/* Progress Stepper */
.form-step-indicator {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 4rem;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    position: relative;
}

.step-dot {
    width: 50px;
    height: 50px;
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-muted);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: var(--shadow-soft);
}

.step-item.active .step-dot {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    transform: scale(1.05);
    box-shadow: 0 8px 15px rgba(12, 33, 58, 0.2);
}

.step-label {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.step-item.active .step-label {
    color: var(--primary-color);
}

@media (max-width: 576px) {
    .form-step-indicator {
        gap: 1rem;
    }

    .step-dot {
        width: 40px;
        height: 40px;
        border-radius: 12px;
    }
}

/* Section Styling */
.form-section {
    margin-bottom: 4rem;
    position: relative;
}

.form-section-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(0, 0, 0, 0.03);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.form-section-title i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Premium Inputs */
.premium-form .form-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: #475569;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.premium-form .form-control,
.premium-form .form-select {
    border-radius: 1.25rem;
    padding: 1rem 1.5rem;
    border: 2px solid #f1f5f9;
    background: #f8fafc;
    font-weight: 500;
    transition: all 0.3s ease;
}

.premium-form .form-control:focus,
.premium-form .form-select:focus {
    background: var(--white);
    border-color: var(--primary-light);
    box-shadow: 0 0 0 5px rgba(99, 102, 241, 0.08);
    transform: translateY(-2px);
}

.premium-form .form-control::placeholder {
    color: #cbd5e1;
    text-transform: none;
}

/* Image Upload Blocks */
.photo-upload-container {
    position: relative;
}

.photo-upload-box {
    width: 150px;
    height: 190px;
    max-width: 100%;
    background: #f8fafc;
    border: 2px dashed #e2e8f0;
    border-radius: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    margin: 0 auto;
}

.photo-upload-box:hover {
    border-color: var(--primary-color);
    background: #eff6ff;
    transform: scale(1.02);
}

.photo-upload-box i {
    font-size: 2.5rem;
    color: #cbd5e1;
    margin-bottom: 1rem;
    transition: color 0.3s;
}

.photo-upload-box:hover i {
    color: var(--primary-color);
}

.preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1.1rem;
    /* Slightly smaller than container to avoid overflow bleed */
    display: none;
}

/* Action Buttons */
.btn-premium {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    padding: 1.25rem 3rem;
    border-radius: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 15px 30px rgba(99, 102, 241, 0.3);
}

.btn-premium:hover:not(:disabled) {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.4);
    color: var(--white);
}

.btn-premium:active {
    transform: translateY(0);
}

/* Utilities */
.required::after {
    content: '*';
    color: #ef4444;
    margin-left: 4px;
}

.bg-indigo-soft {
    background: rgba(99, 102, 241, 0.05);
}

.scale-transition {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#loadingOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    z-index: 10000;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeIn 0.8s ease-out forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

/* Subject Group Cards */
.subject-group-card {
    background: var(--white);
    border: 2px solid #f1f5f9;
    border-radius: 1.5rem;
    padding: 1.5rem;
    height: 100%;
    transition: all 0.3s ease;
}

input[type="radio"]:checked+.subject-group-card {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
    /* Slightly stronger background */
    box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.15);
    /* Stronger shadow */
    transform: translateY(-2px);
    /* Subtle lift */
}

input[type="radio"]:checked+.subject-group-card .badge {
    box-shadow: 0 4px 10px rgba(12, 33, 58, 0.3);
}

.selection-overlay {
    position: absolute;
    top: 15px;
    right: 15px;
    color: var(--primary-color);
    font-size: 1.5rem;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-check:checked+.official-program-card .selection-overlay {
    opacity: 1;
    transform: scale(1);
}

.btn-check:checked+.official-program-card {
    border-color: var(--gold-accent);
    box-shadow: 0 20px 50px rgba(176, 141, 87, 0.15);
    background: linear-gradient(to bottom right, #fff, rgba(176, 141, 87, 0.02));
}

.btn-check:checked+.official-program-card .program-icon-box {
    background: var(--gold-accent);
    color: #fff;
    border-color: var(--gold-accent);
}

.selection-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    color: var(--gold-accent);
    font-size: 1.75rem;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1.2);
    z-index: 10;
}

/* Utilities */
.cursor-pointer {
    cursor: pointer;
}

.grayscale {
    filter: grayscale(1);
}

.letter-spacing-1 {
    letter-spacing: 1px;
}

/* Official Form Layout */
.form-layout-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2.5rem;
    align-items: start;
}

@media (max-width: 1200px) {
    .form-layout-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Form Navigation Sidebar */
.form-navigation-sidebar {
    position: sticky;
    top: 100px;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 1.5rem;
    border: 1px solid #f1f5f9;
    box-shadow: var(--shadow-soft);
}

.nav-item-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 1rem;
    transition: var(--transition-base);
    margin-bottom: 0.5rem;
}

.nav-item-link:hover {
    background: #f8fafc;
    color: var(--primary-color);
}

.nav-item-link.active {
    background: var(--primary-soft);
    color: var(--primary-color);
}

.nav-item-link i {
    width: 20px;
    text-align: center;
}

/* Refined Form Sections */
.official-form-section {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 2rem;
    border: 1px solid #f1f5f9;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-soft);
    position: relative;
    transition: var(--transition-base);
}

.official-form-section:hover {
    box-shadow: var(--shadow-premium);
}

.official-section-header {
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.official-section-header .icon-wrap {
    width: 44px;
    height: 44px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(12, 33, 58, 0.15);
}

.official-section-header h4 {
    margin: 0;
    font-weight: 800;
    color: var(--primary-color);
    font-size: 1.15rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Professional Input Fields */
.official-form label {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.official-form .form-control,
.official-form .form-select {
    padding: 0.875rem 1.25rem;
    border-radius: 0.85rem;
    border: 1.5px solid #e2e8f0;
    background: #ffffff;
    font-weight: 500;
    color: var(--text-dark);
    transition: var(--transition-base);
}

.official-form .form-control:focus,
.official-form .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.official-form .form-control::placeholder {
    color: #94a3b8;
}

/* Specialized Info Boxes */
.info-surface {
    background: #f8fafc;
    border-radius: 1.25rem;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
}

.info-surface-indigo {
    background: #f5f3ff;
    border-color: #ddd6fe;
}

/* Checkboxes and Radios */
.custom-checkbox-wrap {
    padding: 1.25rem;
    border-radius: 1rem;
    border: 1px solid #e2e8f0;
    transition: var(--transition-base);
    cursor: pointer;
}

.custom-checkbox-wrap:hover {
    border-color: var(--primary-color);
    background: #f8fafc;
}

.custom-checkbox-wrap .form-check-input:checked~.form-check-label {
    color: var(--primary-color);
}