/*
 * GMC Compliance Checker - Main Stylesheet
 * ==========================================
 * Modern, professional styling for Google Merchant Center Compliance Checker
 * Compatible with standard shared hosting (Namecheap cPanel)
 *
 * Color Scheme:
 * - Primary: #2563eb (blue)
 * - Success: #10b981 (green)
 * - Warning: #f59e0b (yellow/orange)
 * - Danger: #ef4444 (red)
 * - Background: #f8fafc
 * - Text: #1e293b
 */

/* ==========================================
   CSS RESET & BASE STYLES
   ========================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Primary Colors */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;

    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ==========================================
   LAYOUT & CONTAINERS
   ========================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-sm {
    max-width: 800px;
}

.container-lg {
    max-width: 1400px;
}

section {
    padding: var(--spacing-3xl) 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
    color: var(--primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--gray-600);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--primary);
    text-decoration: none;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    margin: 5px 0;
    transition: var(--transition-fast);
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
    color: var(--white);
}

/* Secondary Button */
.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-900);
}

/* Success Button */
.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.5);
    color: var(--white);
}

/* Danger Button */
.btn-danger {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
    box-shadow: 0 6px 20px 0 rgba(239, 68, 68, 0.5);
    color: var(--white);
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%239C92AC' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero h1 {
    font-size: 3rem;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero h1 span {
    color: var(--danger);
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-xl);
}

.hero-form {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    margin: 0 auto;
}

.hero-form h3 {
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
}

.hero-form .input-group {
    display: flex;
    gap: var(--spacing-sm);
}

.hero-form input[type="url"],
.hero-form input[type="text"] {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.hero-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.hero-form .btn {
    flex-shrink: 0;
}

.hero-form p.form-note {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

/* ==========================================
   STATS SECTION
   ========================================== */
.stats {
    background: var(--white);
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--gray-200);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--danger);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.features {
    background: var(--gray-50);
}

.features-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-100);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    margin-bottom: 0;
    font-size: 0.9375rem;
}

/* ==========================================
   COMPARISON TABLE
   ========================================== */
.comparison {
    background: var(--white);
}

.comparison-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.comparison-table thead {
    background: var(--gray-900);
    color: var(--white);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    width: 35%;
}

.comparison-table th {
    font-weight: 600;
}

.comparison-table tbody tr:hover {
    background: var(--gray-50);
}

.comparison-table .highlight-col {
    background: rgba(37, 99, 235, 0.05);
    border-left: 3px solid var(--primary);
    border-right: 3px solid var(--primary);
}

.comparison-table thead .highlight-col {
    background: var(--primary);
}

.check-icon {
    color: var(--success);
    font-weight: bold;
}

.cross-icon {
    color: var(--gray-400);
}

.partial-icon {
    color: var(--warning);
}

/* ==========================================
   PRICING SECTION
   ========================================== */
.pricing {
    background: var(--gray-50);
}

.pricing-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    align-items: start;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid var(--gray-100);
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    z-index: 1;
}

.pricing-card.featured:hover {
    transform: scale(1.07);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    white-space: nowrap;
}

.pricing-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    margin-bottom: var(--spacing-lg);
}

.pricing-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
}

.pricing-period {
    color: var(--gray-500);
    font-size: 1rem;
}

.pricing-description {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    min-height: 40px;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--gray-700);
}

.pricing-features li::before {
    content: "✓";
    color: var(--success);
    font-weight: bold;
    flex-shrink: 0;
}

.pricing-card .btn {
    width: 100%;
}

/* ==========================================
   HOW IT WORKS
   ========================================== */
.how-it-works {
    background: var(--white);
}

.how-it-works-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--gray-200);
    z-index: 0;
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.step h3 {
    margin-bottom: var(--spacing-sm);
}

.step p {
    font-size: 0.9375rem;
}

/* ==========================================
   TESTIMONIALS
   ========================================== */
.testimonials {
    background: var(--gray-900);
    color: var(--white);
}

.testimonials-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.testimonials-header h2 {
    color: var(--white);
}

.testimonials-header p {
    color: var(--gray-400);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.testimonial-card {
    background: var(--gray-800);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--gray-700);
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    color: var(--gray-300);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.25rem;
}

.testimonial-info h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 0;
}

.testimonial-info p {
    color: var(--gray-400);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ==========================================
   FAQ SECTION
   ========================================== */
.faq {
    background: var(--gray-50);
}

.faq-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-question::after {
    content: "+";
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--gray-600);
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ==========================================
   CTA SECTION
   ========================================== */
.cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    text-align: center;
}

.cta h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
}

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

.cta .btn:hover {
    background: var(--gray-100);
    color: var(--primary-dark);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

/* ==========================================
   FORMS
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--gray-800);
    background: var(--white);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.form-help {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* ==========================================
   CARDS
   ========================================== */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-100);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* ==========================================
   ALERTS & BADGES
   ========================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-success {
    background: var(--success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-danger {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.badge-success {
    background: var(--success-light);
    color: #065f46;
}

.badge-warning {
    background: var(--warning-light);
    color: #92400e;
}

.badge-danger {
    background: var(--danger-light);
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* ==========================================
   REPORT PAGE STYLES
   ========================================== */
.report-header {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
}

.score-circle {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    position: relative;
}

.score-circle.score-good {
    background: linear-gradient(135deg, var(--success), #059669);
    box-shadow: 0 0 40px rgba(16, 185, 129, 0.4);
}

.score-circle.score-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
    box-shadow: 0 0 40px rgba(245, 158, 11, 0.4);
}

.score-circle.score-danger {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    box-shadow: 0 0 40px rgba(239, 68, 68, 0.4);
}

.score-number {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
}

.score-label {
    font-size: 1rem;
    opacity: 0.9;
}

.report-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.summary-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
}

.summary-number {
    font-size: 2rem;
    font-weight: 700;
}

.summary-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.issue-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
}

.issue-card.critical {
    border-left-color: var(--danger);
}

.issue-card.warning {
    border-left-color: var(--warning);
}

.issue-card.passed {
    border-left-color: var(--success);
}

.issue-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.issue-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-xs);
}

.issue-category {
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
}

.issue-description {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
}

.issue-fix {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.issue-fix h4 {
    font-size: 0.875rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.issue-fix p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

.issue-time {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: var(--spacing-sm);
}

.blurred-section {
    position: relative;
    filter: blur(5px);
    pointer-events: none;
    user-select: none;
}

.upgrade-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
    z-index: 10;
    filter: none;
    pointer-events: auto;
}

/* ==========================================
   DASHBOARD STYLES
   ========================================== */
.dashboard-nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-md) 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
}

.dashboard-sidebar {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    height: fit-content;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: var(--spacing-sm);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
}

.dashboard-main {
    min-height: 500px;
}

.dashboard-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.dashboard-stat {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.dashboard-stat-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.5rem;
}

.dashboard-stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.dashboard-stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ==========================================
   CHECKOUT STYLES
   ========================================== */
.checkout-container {
    max-width: 900px;
    margin: var(--spacing-2xl) auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.checkout-form {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.checkout-summary {
    background: var(--gray-900);
    color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.checkout-summary h3 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.summary-line {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-700);
}

.summary-total {
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: none;
    margin-top: var(--spacing-md);
}

.payment-methods {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.payment-method {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-fast);
}

.payment-method:hover,
.payment-method.active {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.card-input-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* ==========================================
   LOADING & SPINNER
   ========================================== */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-text {
    margin-top: var(--spacing-lg);
    font-size: 1.125rem;
    color: var(--gray-600);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--spacing-md);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-card.featured {
        transform: none;
    }

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

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

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

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-sidebar {
        display: none;
    }

    .checkout-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-form .input-group {
        flex-direction: column;
    }

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

    .features-grid,
    .testimonials-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    .steps::before {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        font-size: 0.875rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-md);
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .report-summary {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2rem;
    }

    .score-circle {
        width: 140px;
        height: 140px;
    }

    .score-number {
        font-size: 3rem;
    }

    .dashboard-stats {
        grid-template-columns: 1fr;
    }

    .card-input-group {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mt-5 { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-2xl); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-5 { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }

.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--gray-500); }

.bg-white { background-color: var(--white); }
.bg-light { background-color: var(--gray-50); }
.bg-dark { background-color: var(--gray-900); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Visually Hidden (for accessibility) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}