/* Landing Page CSS - Clean White Theme */

:root {
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    /* Gray-50 */
    --text-primary: #111827;
    /* Gray-900 */
    --text-secondary: #4b5563;
    /* Gray-600 */
    --primary-blue: #3b82f6;
    --primary-green: #22c55e;
    --gradient-main: linear-gradient(135deg, #3b82f6 0%, #22c55e 100%);
    --gradient-hover: linear-gradient(135deg, #2563eb 0%, #16a34a 100%);
    --border-color: #e5e7eb;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-white);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.brand img {
    height: 100px;
    width: auto;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.btn-gradient {
    background: var(--gradient-main);
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    /* Slightly rounded, modern */
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-block;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(34, 197, 94, 0.25);
}

.btn-gradient:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.35);
    background: var(--gradient-hover);
}

/* Hero Section */
.hero {
    padding: 80px 40px 60px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
    max-width: 550px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
    border-radius: 10px;
}

.subtitle-note {
    display: block;
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

.hero-image {
    flex: 1.2;
    display: flex;
    justify-content: center;
    perspective: 1500px;
}

.hero-screenshot {
    width: 100%;
    max-width: 700px;
    border-radius: 16px;
    box-shadow: 0 20px 60px -10px rgba(0, 0, 0, 0.15);
    border: 8px solid #111827;
    /* Tablet bezel look */
    transform: rotateY(-8deg) rotateX(4deg);
    transition: transform 0.5s ease;
}

.hero-screenshot:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

/* Social Proof Banner */
.social-proof {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
}

/* Features Sections */
.feature-section {
    padding: 100px 40px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 80px;
}

.feature-section.reversed {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-image {
    flex: 1;
    background: var(--bg-light);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.feature-image img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.1;
}

.feature-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.check-list {
    list-style: none;
    padding: 0;
}

.check-list li {
    margin-bottom: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Comparison Section */
.comparison-section {
    padding: 100px 40px;
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
}

.comparison-table {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.comp-row {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.comp-row:last-child {
    border-bottom: none;
}

.comp-col {
    flex: 1;
    padding: 24px 32px;
    font-size: 1.1rem;
}

.comp-col.bg-gray {
    background-color: #f3f4f6;
    font-weight: 600;
    color: var(--text-secondary);
}

.comp-col.bg-white {
    font-weight: 600;
    color: var(--text-primary);
}

.comp-header {
    background-color: var(--bg-light);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

/* Final CTA */
.final-cta {
    padding: 120px 40px;
    text-align: center;
    background: radial-gradient(circle at center, rgba(34, 197, 94, 0.05) 0%, white 60%);
}

.final-cta h2 {
    font-size: 3rem;
    margin-bottom: 16px;
    font-weight: 800;
}

.final-cta p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Footer */
footer {
    padding: 60px 40px;
    background-color: white;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-logo img {
    height: 32px;
    opacity: 0.8;
}

.footer-links {
    margin: 24px 0;
    display: flex;
    justify-content: center;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

.copyright {
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-image {
        margin-top: 40px;
    }

    .feature-section {
        flex-direction: column !important;
        text-align: center;
    }

    .check-list li {
        justify-content: center;
    }
}