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

:root {
    --bg-primary: #FCFDFD;
    --blue-primary: #11A3FB;
    --blue-deep: #0052CC;
    --green-accent: #00E676;
    --text-title: #1E2330;
    --text-body: #4B5563;
    --text-subtle: #6B7280;
    --card-bg: #FFFFFF;
    --shadow: rgba(0, 0, 0, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-body);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    height: 64px;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-full {
    height: 32px;
    width: auto;
    max-width: 180px;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

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

.nav-links a {
    color: var(--text-body);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 3px;
    background: var(--text-title);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.03) 0%, rgba(17, 163, 251, 0.05) 50%, rgba(0, 230, 118, 0.03) 100%);
}

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

.hero-text {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--blue-deep), var(--blue-primary), var(--green-accent));
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-title);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-body);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 28px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 16px;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-deep), var(--blue-primary), var(--green-accent));
    color: white;
    box-shadow: 0 4px 12px rgba(17, 163, 251, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(17, 163, 251, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--blue-primary);
    border: 2px solid var(--blue-primary);
    position: relative;
}

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

.coming-soon {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--green-accent);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: 700;
}

.btn-large {
    padding: 16px 36px;
    font-size: 18px;
}

.trust-badges {
    display: flex;
    gap: 24px;
    font-size: 14px;
    color: var(--text-subtle);
    flex-wrap: wrap;
}

.trust-badges span {
    display: flex;
    align-items: center;
}

/* Phone Screenshot */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease-out 0.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.phone-screenshot {
    max-width: 320px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
    transition: transform 0.3s;
}

.phone-screenshot:hover {
    transform: scale(1.02);
}

/* Features Section */
.features {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-title);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-body);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 2px 18px var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 20px;
}

.feature-icon.icon-green {
    background: #ECFDF5;
}

.feature-icon.icon-blue {
    background: #EFF6FF;
}

.feature-icon.icon-gray {
    background: #F3F4F6;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 12px;
}

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

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.02) 0%, rgba(17, 163, 251, 0.03) 100%);
}

.steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 24px;
    align-items: center;
}

.step {
    text-align: center;
    padding: 32px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 2px 12px var(--shadow);
}

.step-number {
    display: none;
}

.step-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.step-circle-blue {
    background: linear-gradient(135deg, #0052CC, #11A3FB);
}

.step-circle-pink {
    background: linear-gradient(135deg, #EC4899, #F472B6);
}

.step-circle-orange {
    background: linear-gradient(135deg, #F59E0B, #FBBF24);
}

.step h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 12px;
}

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

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--blue-primary), var(--green-accent));
    opacity: 0.3;
}

/* Languages Section */
.languages {
    padding: 80px 0;
}

.language-flags {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.flag-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.lang-code {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #F3F4F6;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-title);
    transition: transform 0.3s, box-shadow 0.3s;
}

.lang-code:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.flag-label {
    font-weight: 600;
    color: var(--text-body);
    font-size: 14px;
}

/* Security Section */
.security {
    padding: 80px 0;
    background: #F8FAFE;
}

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

.security-badge {
    text-align: center;
    padding: 32px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 2px 12px var(--shadow);
}

.security-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin: 0 auto 16px;
}

.security-icon.icon-sec-green {
    background: #ECFDF5;
}

.security-icon.icon-sec-blue {
    background: #EFF6FF;
}

.security-icon.icon-sec-purple {
    background: #F5F3FF;
}

.security-icon svg {
    width: 24px;
    height: 24px;
}

.security-badge h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 8px;
}

.security-badge p {
    color: var(--text-body);
}

/* Download CTA Section */
.download-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--blue-deep), var(--blue-primary), var(--green-accent));
    color: white;
}

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

.cta-content h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

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

.download-cta .btn-primary:hover {
    background: var(--bg-primary);
}

.download-cta .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.download-cta .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Footer */
.footer {
    background: var(--text-title);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 16px;
}

.footer-logo .logo-full {
    height: 28px;
    max-width: 160px;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.footer-brand {
    margin-left: 8px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-image {
        order: -1;
    }
    
    .phone-frame {
        transform: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .step-connector {
        width: 2px;
        height: 40px;
        margin: 0 auto;
    }
    
    .security-badges {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        gap: 16px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 60px 0 80px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .phone-screenshot {
        max-width: 240px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .features,
    .how-it-works,
    .languages,
    .security,
    .download-cta {
        padding: 60px 0;
    }
    
    .language-flags {
        gap: 32px;
    }
    
    .cta-content h2 {
        font-size: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}