/* ===== CSS Variables ===== */
:root {
    /* Brand Colors - from Airpaw design system */
    --color-primary: #004cfe;
    --color-primary-dark: #003dcb;
    --color-primary-light: #3370fe;
    --color-primary-lighter: #e5edff;

    /* Neutral Colors */
    --color-black: #000000;
    --color-black-90: #2a2b2f;
    --color-black-70: #61626b;
    --color-black-50: #94959e;
    --color-black-30: #d0d1d5;
    --color-black-20: #e4e5e7;
    --color-black-10: #f2f2f3;
    --color-white: #ffffff;

    /* Semantic Colors */
    --color-success: #1bb200;
    --color-error: #e50039;

    /* Typography */
    --font-family: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);

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

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

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--color-black-90);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-black-90);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: 1.25rem;
}

p {
    color: var(--color-black-70);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: #ccdbff;
    transform: translateY(-2px);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-black-20);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

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

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black-90);
}

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

.nav-links a {
    font-weight: 500;
    color: var(--color-black-70);
    transition: color var(--transition-fast);
}

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

/* Ensure buttons in nav-links maintain their correct colors */
.nav-links a.btn-primary {
    color: var(--color-white);
}

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

/* ===== Hero Section ===== */
.hero {
    padding-top: calc(72px + var(--spacing-4xl));
    padding-bottom: var(--spacing-4xl);
    background: linear-gradient(180deg, var(--color-primary-lighter) 0%, var(--color-white) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text {
    max-width: 560px;
}

.hero-text h1 {
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: var(--color-black-70);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--color-black-90);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--color-white);
    border-radius: 30px;
    overflow: hidden;
}

.app-preview {
    padding: var(--spacing-md);
}

.preview-header {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-black-20);
    margin-bottom: var(--spacing-md);
}

.preview-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black-90);
}

.preview-card {
    background: var(--color-black-10);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.preview-question {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-black-90);
    margin-bottom: var(--spacing-xs);
}

.preview-meta {
    font-size: 0.75rem;
    color: var(--color-black-50);
}

/* ===== Features Section ===== */
.features {
    padding: var(--spacing-4xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-black-50);
    margin-bottom: var(--spacing-3xl);
}

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

.feature-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    background: var(--color-white);
    border: 1px solid var(--color-black-20);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

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

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

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

.feature-card p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ===== How It Works Section ===== */
.how-it-works {
    padding: var(--spacing-4xl) 0;
    background: var(--color-black-10);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--spacing-lg);
}

.step {
    flex: 1;
    max-width: 300px;
    text-align: center;
    padding: var(--spacing-xl);
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-lg);
}

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

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--color-black-30);
    margin-top: 52px;
}

/* ===== CTA Section ===== */
.cta {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

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

.cta p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

.app-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.app-badge {
    display: block;
    transition: transform var(--transition-fast);
}

.app-badge:hover {
    transform: scale(1.05);
}

.badge-svg {
    height: 50px;
    width: auto;
}

/* ===== Footer ===== */
.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    background: var(--color-black-90);
    color: var(--color-white);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-3xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand p {
    color: var(--color-black-50);
    margin-top: var(--spacing-md);
    max-width: 280px;
}

.footer-brand .logo-text {
    color: var(--color-white);
}

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

.footer-column h4 {
    color: var(--color-white);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

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

.footer-column a {
    color: var(--color-black-50);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-black-50);
}

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

    .hero-content {
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

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

    .feature-card {
        text-align: center;
    }

    .feature-icon {
        margin: 0 auto var(--spacing-md);
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step-connector {
        width: 2px;
        height: 40px;
        margin: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-brand p {
        max-width: 100%;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

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

    .hero {
        padding-top: calc(72px + var(--spacing-xl));
        padding-bottom: var(--spacing-xl);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn-large {
        width: 100%;
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
    }

    .features,
    .how-it-works,
    .cta {
        padding: var(--spacing-2xl) 0;
    }

    .app-badges {
        flex-direction: column;
        align-items: center;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===== Legal Pages ===== */
.legal-page {
    padding-top: calc(72px + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
}

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

.legal-content h1 {
    margin-bottom: var(--spacing-sm);
}

.legal-updated {
    color: var(--color-black-50);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-3xl);
}

.legal-section {
    margin-bottom: var(--spacing-xl);
}

.legal-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-black-20);
}

.legal-section:first-of-type h2 {
    border-top: none;
    padding-top: 0;
}

.legal-section h3 {
    font-size: 1.125rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.legal-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.legal-section ul,
.legal-section ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.legal-section ul {
    list-style: disc;
}

.legal-section ol {
    list-style: decimal;
}

.legal-section li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-black-70);
    line-height: 1.7;
}

.legal-section a {
    color: var(--color-primary);
    text-decoration: underline;
}

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

/* ===== Contact Page ===== */
.contact-page {
    padding-top: calc(72px + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
}

.contact-hero {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.contact-hero h1 {
    margin-bottom: var(--spacing-md);
}

.contact-hero p {
    font-size: 1.125rem;
    max-width: 500px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
}

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

.contact-card {
    padding: var(--spacing-lg);
    background: var(--color-black-10);
    border-radius: var(--radius-lg);
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-lighter);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.contact-card h3 {
    margin-bottom: var(--spacing-xs);
}

.contact-card p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.contact-link {
    color: var(--color-primary);
    font-weight: 600;
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-primary-dark);
}

.contact-form-section {
    background: var(--color-white);
    border: 1px solid var(--color-black-20);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.contact-form-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

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

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

.form-group label {
    font-weight: 600;
    color: var(--color-black-90);
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: inherit;
    font-size: 1rem;
    padding: var(--spacing-md);
    border: 1px solid var(--color-black-30);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-black-90);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-black-50);
}

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

.contact-form .btn {
    align-self: flex-start;
}

/* ===== Support Page ===== */
.support-page {
    padding-top: calc(72px + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
}

.support-hero {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.support-hero h1 {
    margin-bottom: var(--spacing-md);
}

.support-hero p {
    font-size: 1.125rem;
    color: var(--color-black-70);
}

.support-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.support-category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-white);
    border: 1px solid var(--color-black-20);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.support-category-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.category-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary-lighter);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.category-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.support-category-card h3 {
    margin-bottom: var(--spacing-xs);
}

.support-category-card p {
    font-size: 0.875rem;
}

.faq-section {
    margin-bottom: var(--spacing-3xl);
}

.faq-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-primary);
}

.faq-item {
    border: 1px solid var(--color-black-20);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.faq-item summary {
    padding: var(--spacing-lg);
    font-weight: 600;
    color: var(--color-black-90);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    transition: background-color var(--transition-fast);
}

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

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary:hover {
    background: var(--color-black-10);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    border-top: 1px solid var(--color-black-20);
}

.faq-answer p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul,
.faq-answer ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.faq-answer ul {
    list-style: disc;
}

.faq-answer ol {
    list-style: decimal;
}

.faq-answer li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-black-70);
    line-height: 1.7;
}

.faq-answer a {
    color: var(--color-primary);
}

.faq-answer a:hover {
    text-decoration: underline;
}

.support-contact {
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--color-primary-lighter);
    border-radius: var(--radius-xl);
}

.support-contact h2 {
    margin-bottom: var(--spacing-md);
}

.support-contact > p {
    margin-bottom: var(--spacing-xl);
}

.support-contact-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.support-response {
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--color-black-50);
}

/* ===== Privacy Policy Tables & Summary ===== */
.retention-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
    font-size: 0.9375rem;
}

.retention-table th,
.retention-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-black-20);
}

.retention-table th {
    background: var(--color-black-10);
    font-weight: 600;
    color: var(--color-black-90);
}

.retention-table td {
    color: var(--color-black-70);
}

.retention-table tr:hover td {
    background: var(--color-black-10);
}

.summary-box {
    background: var(--color-primary-lighter);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border-left: 4px solid var(--color-primary);
}

.summary-box p {
    margin-bottom: var(--spacing-md);
}

.summary-box ul {
    list-style: none;
    padding-left: 0;
}

.summary-box li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-black-70);
}

.summary-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ===== Responsive: Legal, Contact, Support ===== */
@media (max-width: 1024px) {
    .support-categories {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form .btn {
        width: 100%;
    }

    .support-categories {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .legal-page,
    .contact-page,
    .support-page {
        padding-top: calc(72px + var(--spacing-xl));
    }

    .support-contact {
        padding: var(--spacing-xl);
    }

    .support-contact-options {
        flex-direction: column;
    }

    .support-contact-options .btn {
        width: 100%;
    }
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .hero-visual,
    .cta,
    .footer {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }
}