/* === CSS Variables === */
:root {
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    --bg-card: #ffffff;
    --bg-input: #ffffff;

    /* Accents */
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);

    /* Text */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;

    /* Status */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Borders & Shadows */
    --border-color: #e5e7eb;
    --border-focus: #3b82f6;
    --shadow: rgba(0, 0, 0, 0.1);

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

    /* Border radius - Consistent 8px */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows - Using new shadow variable */
    --shadow-sm: 0 1px 3px var(--shadow);
    --shadow-md: 0 4px 12px var(--shadow);
    --shadow-lg: 0 8px 24px var(--shadow);
    --shadow-glow: 0 8px 24px rgba(59, 130, 246, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease-out;
    --transition-normal: 200ms ease-out;
}

/* === Reset & Base === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* === Layout === */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

/* === Header === */
.site-header {
    text-align: center;
    padding: 24px 20px 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.brand-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.brand-parent {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 28px;
    font-weight: 600;
    color: #6b7280;
    text-decoration: none;
    transition: color 150ms ease;
    display: inline-flex;
    align-items: center;
}

.brand-dot {
    color: #3b82f6;
    /* Brand Blue */
    font-size: 1.2em;
    /* Slightly larger than text */
    line-height: 1;
    margin-right: 4px;
    /* Space between dot and text */
    vertical-align: middle;
    position: relative;
    top: -1px;
    /* Optical alignment */
}

.brand-parent:hover {
    color: #3b82f6;
}

.separator {
    font-size: 28px;
    font-weight: 300;
    color: #d1d5db;
    user-select: none;
}

.page-title {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #1f2937;
    margin: 0;
    display: inline;
}

.tagline {
    font-size: 18px;
    line-height: 1.5;
    color: #4b5563;
    margin: 0;
    font-weight: 400;
}

.tagline .highlight {
    color: #3b82f6;
    font-weight: 600;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .site-header {
        padding: 32px 20px 24px;
    }

    .brand-breadcrumb {
        gap: 8px;
    }

    .brand-parent,
    .separator,
    .page-title {
        font-size: 24px;
    }

    .tagline {
        font-size: 16px;
        margin-top: 8px;
    }
}

/* Extra small screens - stack if needed */
@media (max-width: 480px) {
    .brand-breadcrumb {
        flex-wrap: wrap;
        justify-content: center;
    }

    .brand-parent,
    .separator,
    .page-title {
        font-size: 22px;
    }

    .tagline {
        font-size: 15px;
    }
}

/* === Form Card === */
.tailor-form {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.form-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

.form-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    min-width: 0;
    /* Prevent flex blowouts */
}

.column-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.step-number {
    width: 1.75rem;
    height: 1.75rem;
    background: var(--accent-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8125rem;
}

.column-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* === Upload Area === */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--bg-secondary);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--accent-primary);
    background: var(--accent-glow);
}

.upload-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.upload-text {
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    font-size: 0.9375rem;
}

.upload-link {
    color: var(--accent-primary);
    text-decoration: none;
    cursor: pointer;
    font-weight: 500;
}

.upload-link:hover {
    text-decoration: underline;
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-selected {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(59, 130, 246, 0.08);
    border-radius: var(--radius-md);
    max-width: 100%;
}

.file-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.file-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9375rem;
    overflow-wrap: anywhere;
    /* Wrap long strings */
    word-break: break-word;
    /* Fallback */
    text-align: center;
    line-height: 1.4;
}

.file-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    font-size: 1rem;
    transition: color var(--transition-fast);
    line-height: 1;
}

.file-remove:hover {
    color: var(--error);
}

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.optional {
    color: var(--text-muted);
    font-weight: 400;
}

.form-group textarea {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9375rem;
    resize: vertical;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea::placeholder {
    color: var(--text-muted);
}

.char-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: right;
}

.min-hint {
    color: var(--text-muted);
}

/* === Options === */
.form-options {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: 0.9375rem;
}

.checkbox-label.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.checkbox-label input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.checkbox-text {
    color: var(--text-secondary);
}

.coming-soon {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

/* === Terms Acceptance === */
.terms-acceptance {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.terms-checkbox {
    opacity: 1 !important;
    cursor: pointer !important;
}

.terms-checkbox .checkbox-text a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}

.terms-checkbox .checkbox-text a:hover {
    text-decoration: underline;
}

/* === Submit Button === */
.submit-btn {
    width: 100%;
    margin-top: var(--space-xl);
    padding: var(--space-md) var(--space-xl);
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.submit-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.spinner {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* === Error Message === */
.error-message {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-md);
    color: var(--error);
    font-size: 0.9375rem;
    animation: shake 0.4s ease;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-4px);
    }

    75% {
        transform: translateX(4px);
    }
}

.error-icon {
    font-size: 1.125rem;
}

/* === Results Section === */
.results-section {
    margin-top: var(--space-2xl);
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

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

.results-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.results-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.results-header p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.fallback-warning {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
}

.header-tabs-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.header-tab {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-tab.active,
.header-tab.active .tab-text,
.header-tab.active .no-underline {
    color: #000000 !important;
    font-weight: 700 !important;
}

.header-tab.active {
    cursor: default;
}

.header-tab.inactive {
    color: #9ca3af;
    font-weight: 500;
}

.header-tab.inactive:hover {
    color: var(--accent-primary) !important;
}

.header-tab.inactive:hover .tab-text {
    border-bottom: 2px solid var(--accent-primary);
}

.no-underline {
    display: inline-block;
    text-decoration: none !important;
    border-bottom: none !important;
}

.header-separator {
    color: var(--border-color);
    font-weight: 300;
    user-select: none;
}

.warning-icon {
    font-size: 1.125rem;
}

.results-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

.action-btn.primary {
    background: var(--accent-primary);
    color: white;
}

.action-btn.primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.action-btn.secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.action-btn.secondary:hover {
    background: var(--border-color);
}

.action-link {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-decoration: none;
}

.action-link:hover {
    color: var(--text-secondary);
    text-decoration: underline;
}

/* === Preview === */
.preview-container {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.preview-content {
    padding: var(--space-xl);
    color: var(--text-primary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.preview-content h1 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.preview-content h2 {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.preview-content h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin: 1.25rem 0 0.75rem 0;
}

.preview-content p {
    margin-bottom: 0.5rem;
}

.preview-content .contact {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.preview-content ul {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
}

.preview-content li {
    margin-bottom: 0.25rem;
}

/* === Footer === */
.footer {
    text-align: center;
    padding: var(--space-xl) 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

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

.footer-links {
    margin-top: var(--space-sm);
}

.footer-links .separator {
    margin: 0 var(--space-sm);
    color: var(--text-muted);
    position: relative;
    top: 3px;
    /* Optical alignment */
    display: inline-block;
    /* Allows transformation if needed */
}

@media (max-width: 768px) {
    .footer-links .separator {
        top: 1px;
    }
}

/* === Modal === */
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    max-width: 400px;
    width: 100%;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.modal-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.modal-timer {
    color: var(--warning);
    font-weight: 500;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.modal-btn {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
}

.modal-btn.primary {
    background: var(--accent-primary);
    color: white;
    position: relative;
}

.modal-btn.primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

.modal-btn.primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.coming-soon-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--warning);
    color: white;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.625rem;
    text-transform: uppercase;
    font-weight: 600;
}

.modal-btn.secondary {
    background: transparent;
    color: var(--text-secondary);
}

.modal-btn.secondary:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* === Toast === */
.toast {
    position: fixed;
    top: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    background: var(--success);
    color: white;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    z-index: 200;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-16px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* === Utilities === */
[hidden] {
    display: none !important;
}

/* Credit Badge */
.badge-pill {
    background-color: #f3f4f6;
    color: #1f2937;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 1rem;
}

.badge-empty {
    background-color: #fef2f2;
    color: #ef4444;
}

.badge-filled {
    background-color: #ecfdf5;
    color: #059669;
}

.credit-cost {
    font-size: 0.75rem;
    color: #9ca3af;
    margin-top: 0.5rem;
    text-align: center;
}

/* Button Variants */
.submit-btn.premium-upgrade {
    background-color: #059669;
}

.submit-btn.premium-upgrade:hover {
    background-color: #047857;
}

/* System Error Modal Variant */
.error-modal {
    border-top: 4px solid var(--error) !important;
}

.error-modal .modal-icon {
    color: var(--error);
}

.error-modal .modal-btn.primary {
    background-color: var(--error) !important;
}

.error-modal .modal-btn.primary:hover {
    background-color: #dc2626 !important;
}