html {
    scroll-behavior: smooth;
}

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

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

/* Navigation */
.navbar {
    background-color: var(--landing-navbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--landing-navbar-border);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--landing-heading);
    text-decoration: none;
}

.logo img {
    height: 36px;
    margin-right: 0.75rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: var(--landing-text);
    text-decoration: none;
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
    border-radius: 0.375rem;
}

.nav-link:hover {
    color: var(--landing-heading);
}

/* Hamburger menu button - hidden by default */
.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--landing-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
    border-radius: 0.375rem;
    transition: color 0.2s ease;
}

.hamburger:hover {
    color: var(--landing-heading);
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    padding: 0.6rem 1.4rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-left: 0.5rem;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    position: relative;
    overflow: hidden;
    background: var(--landing-hero-gradient);
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(ellipse 600px 400px at 80% 20%, var(--landing-bg-pattern-1) 0%, transparent 70%),
        radial-gradient(ellipse 400px 300px at 20% 80%, var(--landing-bg-pattern-2) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-block;
    background: var(--landing-hero-badge-bg);
    color: var(--landing-hero-badge-text);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    border: 1px solid var(--landing-hero-badge-border);
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--landing-heading);
}

.highlight {
    background: linear-gradient(135deg, var(--landing-highlight-start), var(--landing-highlight-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--landing-text);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
}

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

.btn-ghost:hover {
    border-color: var(--landing-text);
    color: var(--landing-heading);
    background: var(--landing-ghost-hover-bg);
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image-glow {
    position: absolute;
    width: 320px;
    height: 320px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--landing-hero-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-image img {
    width: 100%;
    max-width: 420px;
    height: auto;
    position: relative;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: var(--landing-bg-alt);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--landing-heading);
}

.section-subtitle {
    color: var(--landing-text-muted);
    font-size: 1.1rem;
    max-width: 560px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    background: var(--landing-card-bg);
    border: 1px solid var(--landing-card-border);
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--landing-card-hover-border);
    box-shadow: 0 12px 40px var(--landing-card-hover-shadow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    overflow: hidden;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1rem;
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--landing-heading);
    font-weight: 600;
}

.feature-card p {
    color: var(--landing-text-muted);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background-color: var(--landing-bg);
}

.how-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

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

.step-number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.step-connector {
    position: absolute;
    top: 28px;
    left: calc(50% + 32px);
    width: calc(100% - 32px);
    height: 2px;
    background: linear-gradient(90deg, var(--landing-step-connector), transparent);
}

.step h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--landing-heading);
    font-weight: 600;
}

.step p {
    color: var(--landing-text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--landing-cta-bg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 500px 300px at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

.cta h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: var(--landing-heading);
    font-weight: 700;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: var(--landing-text);
    line-height: 1.7;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    background: var(--landing-cta-btn-bg);
    color: var(--landing-cta-btn-text);
    transition: all 0.25s ease;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    background-color: var(--landing-footer-bg);
    border-top: 1px solid var(--landing-footer-border);
    padding: 4rem 0 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--landing-footer-heading);
    margin-bottom: 0.75rem;
}

.footer-logo img {
    height: 28px;
    margin-right: 0.5rem;
}

.footer-tagline {
    color: var(--landing-footer-text);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-col h4 {
    color: var(--landing-footer-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    color: var(--landing-footer-text);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.3rem 0;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--landing-footer-link-hover);
}

.footer-bottom {
    border-top: 1px solid var(--landing-footer-border);
    padding-top: 1.5rem;
}

.footer-bottom p {
    color: var(--landing-footer-text-faint);
    font-size: 0.85rem;
    text-align: center;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.25s ease;
    z-index: 900;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        max-width: 100%;
    }

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

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 280px;
    }

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

    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .step-connector {
        display: none;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .cta h2 {
        font-size: 1.75rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

@media (max-width: 480px) {
    .nav-container {
        padding: 0.75rem 1rem;
        position: relative;
    }

    .logo span {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        background-color: var(--landing-navbar-dropdown-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 0.5rem 0;
        border-top: 1px solid var(--landing-navbar-border);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        z-index: 999;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-link {
        display: block;
        text-align: center;
        padding: 0.75rem 1rem;
    }

    .nav-cta {
        margin: 0.5rem 1rem;
        text-align: center;
    }

    .hero {
        padding: 100px 0 50px;
    }

    .hero-title {
        font-size: 1.85rem;
    }

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

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        justify-content: center;
    }

    .features {
        padding: 60px 0;
    }

    .how-it-works {
        padding: 60px 0;
    }

    .cta {
        padding: 60px 0;
    }
}

/* Legacy classes used by about.html and other pages that import landing.css */
.login-btn {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    padding: 0.6rem 1.4rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-left: 0.5rem;
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.05rem;
}

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

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--landing-footer-text);
    text-decoration: none;
    margin: 0 0.75rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--landing-footer-link-hover);
}

.footer-text {
    color: var(--landing-footer-text-faint);
    font-size: 0.85rem;
}

.footer-sites {
    margin-bottom: 1rem;
}

.footer-sites a {
    color: var(--landing-footer-text-faint);
    text-decoration: none;
    margin: 0 0.5rem;
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

.footer-sites a:hover {
    color: var(--landing-footer-link-hover);
}

/* SKIP TO CONTENT LINK */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:focus {
    position: fixed;
    top: 0;
    left: 0;
    width: auto;
    height: auto;
    padding: 0.75rem 1.5rem;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    background: var(--primary-blue);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    z-index: 10000;
    text-decoration: none;
    border-radius: 0 0 8px 0;
}

/* FOCUS VISIBLE STYLES */
:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
    border-radius: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}