/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Color Palette - Professional Corporate */
    --primary-color: #03033e;
    --primary-dark: #020228;
    --primary-light: #050554;
    --secondary-color: #10b981;
    --accent-color: #e49717;

    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;

    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-gradient: linear-gradient(135deg, #03033e 0%, #03033e 70%, #e49717 100%);

    --border-color: #e5e7eb;
    --error-color: #ef4444;
    --success-color: #10b981;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --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);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 640px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===================================
   Form Section (Contains Header, Trust, Info, Form)
   =================================== */
.form-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    flex: 1;
}

/* ===================================
   Header Section (Inside Form)
   =================================== */
.header {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    margin: calc(var(--spacing-xl) * -1) calc(var(--spacing-xl) * -1) var(--spacing-xl) calc(var(--spacing-xl) * -1);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 10;
    transition: box-shadow var(--transition-base);
}

.header:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
}

.header-image {
    width: 100%;
    max-width: 1200px;
    height: auto;
    object-fit: contain;
    display: block;
}

/* Mobile Header Styles */
@media (max-width: 640px) {
    .header {
        padding: var(--spacing-md);
    }

    .header-image {
        max-width: 100%;
    }
}

.main-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* ===================================
   Trust Section (Inside Form)
   =================================== */
.trust-section {
    background: linear-gradient(135deg, #03033e 0%, #03033e 70%, #e49717 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.trust-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: white;
    text-align: center;
}

.trust-item i {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.trust-item span {
    font-size: 0.85rem;
    font-weight: 500;
}

/* ===================================
   Info Section (Inside Form)
   =================================== */
.info-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--primary-color);
}

.info-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.info-section h2 i {
    color: var(--primary-color);
}

.info-section p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===================================
   Registration Form
   =================================== */
.registration-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-label i {
    color: var(--primary-color);
    font-size: 1rem;
}

.required {
    color: var(--error-color);
    font-weight: 700;
}

.optional {
    color: var(--text-light);
    font-weight: 400;
    font-size: 0.85rem;
}

/* Form Inputs */
.form-input,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus {
    background: var(--bg-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-input:disabled,
.form-select:disabled {
    background: #f3f4f6;
    cursor: not-allowed;
    opacity: 0.6;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* Error States */
.form-input.error,
.form-select.error {
    border-color: var(--error-color);
    background: #fef2f2;
}

.error-message {
    font-size: 0.85rem;
    color: var(--error-color);
    display: none;
    margin-top: -0.25rem;
}

.error-message.show {
    display: block;
}

/* Training Categories */
.training-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.category-group {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

.category-group:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.category-header i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.checkbox-group,
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.checkbox-label:hover,
.radio-label:hover {
    background: rgba(37, 99, 235, 0.05);
}

.checkbox-input,
.radio-input {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-text,
.radio-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.checkbox-input:checked+.checkbox-text,
.radio-input:checked+.radio-text {
    color: var(--text-primary);
    font-weight: 600;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-text,
.btn-icon {
    transition: all var(--transition-base);
}

.submit-btn.loading .btn-text,
.submit-btn.loading .btn-icon {
    opacity: 0;
}

.btn-loader {
    position: absolute;
}

/* Message Container */
.message-container {
    margin-top: var(--spacing-lg);
}

.success-message,
.error-message-box {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    font-weight: 500;
    animation: slideIn var(--transition-base);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

.success-message {
    background: #d1fae5;
    color: #065f46;
    border: 2px solid var(--success-color);
}

.success-message i {
    color: var(--success-color);
    font-size: 1.25rem;
}

.error-message-box {
    background: #fee2e2;
    color: #991b1b;
    border: 2px solid var(--error-color);
}

.error-message-box i {
    color: var(--error-color);
    font-size: 1.25rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-top: auto;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-heading {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.footer-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-logos {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.footer-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    line-height: 1.6;
}

.footer-list li i {
    color: var(--primary-color);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.footer-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-list a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 2px solid var(--border-color);
    padding-top: var(--spacing-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.footer-bottom i {
    color: var(--success-color);
}

.footer-copyright {
    font-weight: 600;
    color: var(--text-primary) !important;
}

/* ===================================
   Responsive Design - Tablet & Desktop
   =================================== */
@media (min-width: 768px) {
    .container {
        padding: var(--spacing-xl);
        max-width: 720px;
    }

    .header {
        padding: var(--spacing-2xl);
    }

    .logo-iq {
        height: 140px;
    }

    .logo-avantcert {
        height: 50px;
    }

    .main-title {
        font-size: 2.5rem;
    }

    .trust-content {
        grid-template-columns: repeat(3, 1fr);
    }

    .form-section {
        padding: var(--spacing-2xl);
    }

    .checkbox-group,
    .radio-group {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   Accessibility & Print
   =================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media print {
    body {
        background: white;
    }

    .submit-btn,
    .footer {
        display: none;
    }
}