/* ============================================
   Reset & Base Styles
   ============================================ */

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

:root {
    /* Core Brand Palette */
    --color-primary: #2563EB;
    --color-primary-hover: #1D4ED8;
    --color-primary-soft: #DBEAFE;

    /* Neutrals / Backgrounds */
    --color-bg-page: #F9FAFB;
    --color-bg: #FFFFFF;
    --color-bg-muted: #F3F4F6;
    --color-border: #E5E7EB;

    /* Text Colors */
    --color-text-primary: #0F172A;
    --color-text-body: #111827;
    --color-text-muted: #6B7280;
    --color-text-disabled: #9CA3AF;

    /* Status Colors */
    --color-success: #16A34A;
    --color-success-text: #065F46;
    --color-success-bg: #DCFCE7;
    --color-warning: #F59E0B;
    --color-warning-text: #92400E;
    --color-warning-bg: #FEF3C7;
    --color-error: #DC2626;
    --color-error-text: #7F1D1D;
    --color-error-bg: #FEE2E2;

    /* Code / URLs */
    --color-code-bg: #F3F4F6;
    --color-code-text: #111827;

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

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

    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
}

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

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--color-code-bg);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    color: var(--color-code-text);
}

/* Style pathl.link URLs - use primary blue */
code.pathl-link {
    color: var(--color-primary);
    text-decoration: none;
}

code.pathl-link:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

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

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

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

/* ============================================
   Navigation
   ============================================ */

.nav {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

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

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

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

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

/* ============================================
   Buttons
   ============================================ */

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

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

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

.btn-secondary-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    padding: var(--spacing-2xl) 0;
    text-align: center;
    background: var(--color-bg-page);
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-headline {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-subheadline p {
    margin-bottom: var(--spacing-xs);
}

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

.hero-reassurance {
    font-size: 0.9rem;
    color: var(--color-text-disabled);
}

/* ============================================
   Section Styles
   ============================================ */

section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   How It Works
   ============================================ */

.how-it-works {
    background: var(--color-bg-page);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.step {
    text-align: center;
}

.step-number {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.step-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.step-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.step-example,
.step-note {
    font-size: 0.9rem;
    color: var(--color-text-disabled);
    margin-top: var(--spacing-xs);
}

/* ============================================
   Features
   ============================================ */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-description {
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ============================================
   Who It's For
   ============================================ */

.who-its-for {
    background: var(--color-bg-page);
}

.audiences {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.audience-card {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.audience-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.audience-description {
    color: var(--color-text-muted);
}

/* ============================================
   Pricing
   ============================================ */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-card {
    padding: var(--spacing-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    text-align: center;
}

.pricing-card.featured {
    border-color: var(--color-primary);
    border-width: 2px;
}

.plan-name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.plan-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-muted);
}

.plan-features li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.plan-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 600;
}

.plan-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.pricing-note {
    text-align: center;
    color: var(--color-text-disabled);
    font-size: 0.9rem;
    margin-top: var(--spacing-lg);
}

/* ============================================
   FAQ
   ============================================ */

.faq {
    background: var(--color-bg-page);
}

.faq-list {
    max-width: 700px;
    margin: var(--spacing-xl) auto 0;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md) 0;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    transition: color 0.2s;
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-text-muted);
    transition: transform 0.3s, color 0.2s;
    flex-shrink: 0;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
    color: var(--color-primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
    padding: 0 var(--spacing-md);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.faq-answer p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============================================
   About
   ============================================ */

.about-content {
    max-width: 700px;
    margin: var(--spacing-xl) auto 0;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.about-contact {
    margin-top: var(--spacing-lg);
    color: var(--color-text-body);
}

.about-contact a {
    color: var(--color-primary);
}

/* ============================================
   Contact
   ============================================ */

.contact {
    background: var(--color-bg-page);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.contact-card {
    padding: var(--spacing-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border-color: var(--color-primary);
}

.contact-type {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-description {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.contact-email {
    display: inline-block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
    word-break: break-all;
}

.contact-email:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--color-bg-muted);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--color-text-body);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Suggest Page
   ============================================ */

.suggest-page {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-page);
    min-height: calc(100vh - 200px);
}

.suggest-content {
    max-width: 800px;
    margin: 0 auto;
}

.suggest-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.suggest-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* Priorities Section */
.priorities-section {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.priorities-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.priorities-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

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

.priority-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
    background: var(--color-bg);
}

.priority-item:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}

.priority-item input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    margin-top: 2px;
}

.priority-item input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.priority-item input[type="checkbox"]:checked + .checkbox-custom::after {
    content: "✓";
    color: white;
    font-size: 14px;
    font-weight: 600;
}

.priority-label {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.priority-label strong {
    color: var(--color-text-primary);
    font-size: 1rem;
    font-weight: 600;
}

.priority-description {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Form Section */
.suggest-form-section {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
}

.form-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.suggest-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.form-input,
.form-textarea {
    font-family: var(--font-sans);
    font-size: 1rem;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background: var(--color-bg);
    color: var(--color-text-body);
    transition: all 0.2s;
    width: 100%;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: var(--font-sans);
    line-height: 1.6;
}

.form-help {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: calc(var(--spacing-xs) * -1);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.form-actions .btn-primary,
.form-actions .btn-secondary {
    flex: 1;
    min-width: 120px;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-md);
    }

    .nav-links a:not(.btn-secondary-small) {
        display: none;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn-primary,
    .hero-cta .btn-secondary {
        width: 100%;
    }

    .steps,
    .features-grid,
    .audiences,
    .pricing-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .priorities-section,
    .suggest-form-section {
        padding: var(--spacing-md);
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn-primary,
    .form-actions .btn-secondary {
        width: 100%;
    }
}

.not-found {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(4rem, 10vw, 6rem) 0;
    background: radial-gradient(circle at 20% 15%, rgba(37, 99, 235, 0.16), transparent 32%),
    radial-gradient(circle at 82% 18%, rgba(16, 185, 129, 0.14), transparent 30%),
    radial-gradient(circle at 50% 82%, rgba(99, 102, 241, 0.12), transparent 28%),
    linear-gradient(135deg, #F8FBFF 0%, #EEF2FF 45%, #F3F4F6 100%);
}

.not-found-content {
    position: relative;
    max-width: 960px;
    width: 100%;
    text-align: center;
    color: var(--color-text-primary);
    padding: clamp(2rem, 5vw, 3rem);
}

.not-found-content::before {
    content: "404";
    position: absolute;
    inset: 50% auto auto 50%;
    transform: translate(-50%, -52%);
    font-size: clamp(10rem, 28vw, 18rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    color: rgba(37, 99, 235, 0.06);
    mix-blend-mode: multiply;
    pointer-events: none;
    z-index: 0;
}

.not-found-content > * {
    position: relative;
    z-index: 1;
}

.not-found-eyebrow {
    display: inline-block;
    padding: 0.35rem 0.95rem;
    background: rgba(37, 99, 235, 0.12);
    color: var(--color-primary);
    border-radius: 999px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 1rem;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.12);
}

.not-found-title {
    font-size: clamp(3.75rem, 10vw, 5.75rem);
    font-weight: 800;
    background: linear-gradient(110deg, #2563EB 0%, #60A5FA 40%, #7C3AED 100%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
    text-shadow: 0 12px 45px rgba(37, 99, 235, 0.35);
}

.not-found-description {
    color: var(--color-text-muted);
    font-size: clamp(1.15rem, 2.2vw, 1.4rem);
    line-height: 1.65;
    margin-bottom: var(--spacing-xl);
}

.not-found-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.not-found-actions .btn-primary,
.not-found-actions .btn-secondary {
    min-width: 200px;
    padding: 0.9rem 1.6rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.not-found-actions .btn-primary {
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.22);
}

.not-found-actions .btn-secondary {
    border-width: 1.5px;
}

.not-found-links {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

.not-found-links a {
    color: var(--color-text-muted);
}

.not-found-links a:hover {
    color: var(--color-primary);
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}