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

:root {
    --color-bg: #fafafa;
    --color-bg-alt: #f0f0f0;
    --color-text: #1a1a1a;
    --color-text-muted: #5a5a5a;
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-border: #e0e0e0;
    --color-card: #ffffff;
    --color-success: #16a34a;
    --color-warning: #ca8a04;
    --color-error: #dc2626;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --container-max: 1100px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

h1, h2, h3, h4 {
    line-height: 1.3;
    font-weight: 600;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; margin-bottom: var(--spacing-lg); }
h3 { font-size: 1.25rem; margin-bottom: var(--spacing-sm); }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: #fff;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    background-color: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
    padding: var(--spacing-sm) 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text);
}

.logo:hover {
    color: var(--color-text);
}

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

.nav a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.nav a:hover {
    color: var(--color-text);
}

.nav .btn {
    color: #fff;
}

/* Hero */
.hero {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero h1 {
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
}

.hero-subtitle {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.125rem;
    color: var(--color-text-muted);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: var(--spacing-xxl) 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-intro {
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-muted);
}

/* Two Columns */
.two-columns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

/* Cards */
.card {
    background-color: var(--color-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

/* Lists */
.list-check li,
.list-cross li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.list-check li::before,
.list-cross li::before {
    position: absolute;
    left: 0;
    top: 0.125rem;
    font-size: 1rem;
}

.list-check li::before {
    content: "✓";
    color: var(--color-success);
    font-weight: 600;
}

.list-cross li::before {
    content: "×";
    color: var(--color-error);
    font-weight: 600;
    font-size: 1.125rem;
}

/* Deliverables */
.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.deliverable {
    background-color: var(--color-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.deliverable-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.deliverable p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

/* Workflow */
.workflow {
    max-width: 700px;
    margin: 0 auto;
}

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

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
    border-radius: 50%;
}

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

.step-content p {
    color: var(--color-text-muted);
}

.workflow-note {
    text-align: center;
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* Example Card */
.example-card {
    max-width: 500px;
    background-color: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
    position: relative;
}

.example-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--color-warning);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.example-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
}

.example-domain {
    font-weight: 600;
    font-size: 1.125rem;
}

.example-date {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.example-score {
    padding: var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.score-circle {
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #fff;
    margin-bottom: var(--spacing-xs);
}

.score-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.score-max {
    font-size: 1rem;
    opacity: 0.8;
}

.score-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.example-issues {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.example-issues h4 {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.example-issues ul {
    list-style: none;
}

.example-issues li {
    padding: var(--spacing-xs) 0;
    font-size: 0.9375rem;
    border-bottom: 1px solid var(--color-border);
}

.example-issues li:last-child {
    border-bottom: none;
}

.example-note {
    padding: var(--spacing-md);
    background-color: #fef3c7;
}

.example-note p {
    font-size: 0.9375rem;
    color: #92400e;
    margin: 0;
}

/* Free Offer */
.free-offer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-card);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--color-primary);
    text-align: center;
    max-width: 600px;
}

.free-offer h3 {
    color: var(--color-primary);
}

.free-offer p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

/* FAQ */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.faq-item summary {
    padding: var(--spacing-md);
    font-weight: 500;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-size: 1.25rem;
    color: var(--color-text-muted);
    transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
    content: "−";
}

.faq-item p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text-muted);
}

/* Contact */
.section-contact {
    background-color: var(--color-text);
    color: #fff;
}

.section-contact h2 {
    color: #fff;
}

.contact-intro {
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-item svg {
    opacity: 0.6;
}

.contact-item a {
    color: #fff;
    font-size: 1.125rem;
}

.contact-item a:hover {
    opacity: 0.8;
}

.contact-note {
    font-size: 0.875rem;
    opacity: 0.6;
    font-style: italic;
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.footer p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 900px) {
    .deliverables-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .two-columns {
        grid-template-columns: 1fr;
    }
    
    .nav a:not(.btn) {
        display: none;
    }
}

@media (max-width: 600px) {
    h1 { font-size: 1.75rem; }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .deliverables-grid {
        grid-template-columns: 1fr;
    }
    
    .workflow-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
    
    .example-card {
        margin: 0 calc(-1 * var(--spacing-md));
        border-radius: 0;
    }
    
    .free-offer {
        margin-left: calc(-1 * var(--spacing-md));
        margin-right: calc(-1 * var(--spacing-md));
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
}

/* Focus States for Accessibility */
a:focus,
button:focus,
summary:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *, *::before, *::after {
        transition: none !important;
    }
}