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

:root {
    --primary-color: #00D9FF;
    --primary-dark: #00B8D9;
    --secondary-color: #1A1A1A;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border-color: #E5E5E5;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
}

.logo {
    font-size: 32px;
}

.brand-name {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #F8F9FA 0%, #E8F4F8 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 16px;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

/* Phone Mockup */
.phone-mockup {
    width: 300px;
    height: 600px;
    background: #1A1A1A;
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
}

.app-preview {
    padding: 20px;
}

.preview-header {
    text-align: center;
    padding: 8px 0;
    font-size: 14px;
    font-weight: 600;
}

.preview-content {
    margin-top: 40px;
}

.team-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 12px;
}

.team-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
}

.team-info h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.team-info p {
    font-size: 14px;
    color: var(--text-secondary);
}

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

.section-title {
    text-align: center;
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-light);
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 60px;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

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

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.download .section-title {
    color: white;
}

.download-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.store-button {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: white;
    color: var(--text-primary);
    border-radius: 12px;
    text-decoration: none;
    transition: transform 0.3s;
}

.store-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.store-icon {
    font-size: 32px;
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.store-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.store-name {
    font-size: 18px;
    font-weight: 700;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Page Hero (Support & Privacy) */
.page-hero {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, #F8F9FA 0%, #E8F4F8 100%);
    text-align: center;
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 18px;
    color: var(--text-secondary);
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
}

.faq-category {
    margin-bottom: 60px;
}

.category-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.faq-item {
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
}

.faq-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background: var(--bg-light);
    text-align: center;
}

.contact-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    padding: 40px;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.contact-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Privacy Content */
.privacy-content {
    padding: 80px 0;
}

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

.privacy-section {
    margin-bottom: 48px;
}

.privacy-section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.privacy-section h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--text-primary);
}

.privacy-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.privacy-section ul {
    margin: 16px 0;
    padding-left: 24px;
}

.privacy-section li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

.privacy-section a {
    color: var(--primary-color);
    text-decoration: none;
}

.privacy-section a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 42px;
    }

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

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-options {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav-links {
        gap: 16px;
        font-size: 14px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

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

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

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

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 12px;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }
}