/* ====================================================================
   Apex International University - Student Registration Portal CSS
   Clean, Responsive, Accessible, and Modern Design
   ==================================================================== */

:root {
    --primary: #1e40af;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --secondary: #0f766e;
    --secondary-hover: #115e59;
    --accent: #f59e0b;
    --dark: #0f172a;
    --slate: #334155;
    --muted: #64748b;
    --light: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --border-focus: #3b82f6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font);
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Top Navbar */
.top-header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark);
}

.brand-logo {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), #3b82f6);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 22px;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(30, 64, 175, 0.3);
}

.brand-text h1 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
}

.brand-text span {
    font-size: 0.8rem;
    color: var(--muted);
    font-weight: 500;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-link {
    font-size: 0.875rem;
    color: var(--slate);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.header-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.badge-year {
    background: #dbeafe;
    color: #1e40af;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid #bfdbfe;
}

/* Hero Section */
.hero-banner {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #0369a1 100%);
    color: #ffffff;
    padding: 38px 0 70px 0;
    position: relative;
    overflow: hidden;
}

.hero-banner::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 0;
    right: 0;
    height: 60px;
    background: #f1f5f9;
    transform: skewY(-1deg);
}

.hero-content {
    max-width: 720px;
}

.hero-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.hero-content p {
    font-size: 1.05rem;
    color: #cbd5e1;
    margin-bottom: 18px;
    line-height: 1.6;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-pill {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    font-size: 0.825rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Main Content Area */
.main-wrapper {
    margin-top: -45px;
    position: relative;
    z-index: 10;
    margin-bottom: 60px;
}

/* Card Container */
.registration-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    overflow: hidden;
}

/* Multi-step progress bar */
.wizard-steps {
    display: flex;
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
    padding: 0;
    list-style: none;
    overflow-x: auto;
}

.step-item {
    flex: 1;
    padding: 18px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    cursor: default;
    transition: all 0.2s ease;
    min-width: 190px;
}

.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: var(--border);
}

.step-number {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #e2e8f0;
    color: var(--muted);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.step-label {
    display: flex;
    flex-direction: column;
}

.step-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate);
}

.step-desc {
    font-size: 0.75rem;
    color: var(--muted);
}

/* Active and Completed step states */
.step-item.active {
    background: #ffffff;
    border-bottom: 3px solid var(--primary);
}

.step-item.active .step-number {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.15);
}

.step-item.active .step-title {
    color: var(--primary);
    font-weight: 700;
}

.step-item.completed .step-number {
    background: var(--success);
    color: #ffffff;
}

.step-item.completed .step-title {
    color: var(--dark);
}

/* Form Sections */
.form-body {
    padding: 34px;
}

.form-step {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.section-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-header p {
    font-size: 0.875rem;
    color: var(--muted);
    margin-top: 4px;
}

/* Grid Layout for Form */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* Form Controls */
.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate);
    margin-bottom: 7px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.required-star {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    font-family: inherit;
    font-size: 0.925rem;
    color: var(--dark);
    background-color: #ffffff;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}

.form-control.is-invalid {
    border-color: var(--danger);
    background-color: #fffaf0;
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.input-hint {
    font-size: 0.775rem;
    color: var(--muted);
    margin-top: 5px;
}

.invalid-feedback {
    display: none;
    font-size: 0.775rem;
    color: var(--danger);
    margin-top: 5px;
    font-weight: 500;
}

.form-control.is-invalid + .invalid-feedback,
.form-group.has-error .invalid-feedback {
    display: block;
}

/* File Upload Dropzones */
.upload-card-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.upload-zone {
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    background: #f8fafc;
    transition: all 0.2s ease;
    position: relative;
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: #f0f7ff;
}

.upload-zone.dragover {
    border-color: var(--primary);
    background: #e0f2fe;
}

.upload-icon {
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--primary);
}

.upload-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--slate);
    margin-bottom: 4px;
}

.upload-sub {
    font-size: 0.775rem;
    color: var(--muted);
    margin-bottom: 12px;
}

.file-input-hidden {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.preview-container {
    margin-top: 14px;
    display: none;
    align-items: center;
    gap: 12px;
    background: #ffffff;
    border: 1px solid var(--border);
    padding: 10px;
    border-radius: var(--radius-sm);
    text-align: left;
}

.preview-thumb {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    object-fit: cover;
    border: 1px solid var(--border);
}

.preview-info {
    flex: 1;
    overflow: hidden;
}

.preview-name {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-size {
    font-size: 0.75rem;
    color: var(--muted);
}

/* Review Summary on Step 4 */
.review-box {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 22px;
    margin-bottom: 24px;
}

.review-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 20px;
    margin-bottom: 18px;
}

.review-row {
    font-size: 0.85rem;
}

.review-label {
    color: var(--muted);
    font-weight: 500;
}

.review-value {
    color: var(--dark);
    font-weight: 600;
}

/* Agreement Checkbox */
.terms-agreement {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.terms-agreement input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.terms-agreement label {
    font-size: 0.85rem;
    color: #1e3a8a;
    line-height: 1.5;
    cursor: pointer;
}

/* Navigation Buttons */
.wizard-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    margin-top: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 24px;
    font-size: 0.925rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(30, 64, 175, 0.25);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(30, 64, 175, 0.35);
}

.btn-secondary {
    background: #e2e8f0;
    color: var(--slate);
}

.btn-secondary:hover {
    background: #cbd5e1;
    color: var(--dark);
}

.btn-success {
    background: var(--success);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--slate);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* Flash and Notice Alerts */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-danger {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-success {
    background-color: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.alert-info {
    background-color: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.775rem;
    font-weight: 600;
}

.badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.badge-pending {
    background: #fef3c7;
    color: #92400e;
}
.badge-pending .badge-dot { background: #d97706; }

.badge-success {
    background: #d1fae5;
    color: #065f46;
}
.badge-success .badge-dot { background: #10b981; }

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}
.badge-danger .badge-dot { background: #ef4444; }

.badge-warning {
    background: #e0f2fe;
    color: #0369a1;
}
.badge-warning .badge-dot { background: #0284c7; }

/* Confirmation / Success Page */
.confirmation-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    max-width: 820px;
    margin: 30px auto;
}

.conf-header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 1px dashed var(--border);
    padding-bottom: 25px;
}

.conf-icon-circle {
    width: 68px;
    height: 68px;
    background: #d1fae5;
    color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 16px auto;
}

.conf-reg-pill {
    display: inline-block;
    background: #0f172a;
    color: #38bdf8;
    font-family: monospace;
    font-size: 1.25rem;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: 8px;
    margin: 12px 0;
    letter-spacing: 0.05em;
}

.conf-details-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

.conf-details-table th, 
.conf-details-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    text-align: left;
}

.conf-details-table th {
    color: var(--muted);
    font-weight: 500;
    width: 35%;
}

.conf-details-table td {
    color: var(--dark);
    font-weight: 600;
}

/* Footer */
.site-footer {
    background: #ffffff;
    border-top: 1px solid var(--border);
    padding: 24px 0;
    margin-top: auto;
    font-size: 0.85rem;
    color: var(--muted);
    text-align: center;
}

.site-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* ====================================================================
   Print Styles for Student Registration Slip / Voucher
   ==================================================================== */
@media print {
    body {
        background: #ffffff !important;
        color: #000000 !important;
        font-size: 11pt;
    }

    .top-header, .site-footer, .no-print, .btn, .hero-banner {
        display: none !important;
    }

    .main-wrapper {
        margin: 0 !important;
        padding: 0 !important;
    }

    .confirmation-card {
        box-shadow: none !important;
        border: 1px solid #333333 !important;
        padding: 20px !important;
        margin: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    .conf-reg-pill {
        border: 2px solid #000;
        background: #f4f4f4 !important;
        color: #000 !important;
    }

    .conf-details-table th, .conf-details-table td {
        border-bottom: 1px solid #ddd !important;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .grid-2, .grid-3, .upload-card-wrapper, .review-grid {
        grid-template-columns: 1fr;
    }

    .form-body {
        padding: 20px 16px;
    }

    .hero-content h2 {
        font-size: 1.6rem;
    }

    .wizard-steps {
        overflow-x: auto;
    }

    .step-item {
        min-width: 140px;
        padding: 12px 10px;
    }

    .step-desc {
        display: none;
    }
}