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

:root {
    --primary-color: #FF6B35;
    --primary-dark: #E85A2A;
    --secondary-color: #004E89;
    --secondary-dark: #003D6D;
    --text-dark: #1A1A1A;
    --text-light: #666666;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border-color: #E0E0E0;
    --success-color: #00C853;
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    --gradient-secondary: linear-gradient(135deg, #004E89 0%, #007EA7 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-icon {
    font-size: 28px;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

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

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

.cta-button-small {
    background: var(--gradient-primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
}

.cta-button-small:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
    overflow: hidden;
}

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

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

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

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.btn span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.btn small {
    font-size: 11px;
    font-weight: 400;
    opacity: 0.9;
}

.btn strong {
    font-size: 16px;
    font-weight: 600;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--text-dark);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-disabled:hover {
    transform: none;
}

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

.coming-soon {
    color: var(--text-light);
    font-size: 14px;
    font-style: italic;
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInRight 0.8s ease;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: var(--text-dark);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #FF6B35 0%, #F7931E 100%);
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-preview {
    text-align: center;
    color: white;
}

.preview-icon {
    font-size: 80px;
    margin-bottom: 24px;
    animation: pulse 2s ease-in-out infinite;
}

.preview-timer {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 16px;
}

.preview-text {
    font-size: 20px;
    opacity: 0.9;
}

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

.section-title {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 20px;
    text-align: center;
    color: var(--text-light);
    max-width: 700px;
    margin: -40px auto 60px;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.problem-card {
    background: var(--bg-light);
    padding: 40px 32px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    font-size: 56px;
    margin-bottom: 24px;
}

.problem-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

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

/* Solution Section */
.solution {
    padding: 80px 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.solution .section-title {
    color: white;
    margin-bottom: 24px;
}

.solution .section-subtitle {
    color: rgba(255, 255, 255, 0.95);
    margin: 0 auto;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.feature-card {
    padding: 40px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

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

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background: var(--bg-light);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}

.benefit-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    align-items: start;
}

.benefit-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.5;
}

.benefit-content h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.benefit-content p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: var(--secondary-color);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    text-align: center;
}

.stat-number {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 18px;
    opacity: 0.9;
}

/* CTA Section */
.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--secondary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 24px;
}

.cta-subtitle {
    font-size: 20px;
    margin-bottom: 48px;
    opacity: 0.9;
}

/* SEO Content Section */
.seo-content {
    padding: 80px 0;
    background: var(--bg-light);
}

.seo-article {
    max-width: 900px;
    margin: 0 auto;
}

.seo-article h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.seo-article h3 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 16px;
    color: var(--secondary-color);
}

.seo-article p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 20px;
    text-align: justify;
}

.seo-article strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 400px;
}

.footer-brand p {
    margin-top: 16px;
    opacity: 0.8;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.6;
    font-size: 14px;
}

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

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }

    .section-title {
        font-size: 40px;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }
}

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

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

    .hero-image {
        order: -1;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 36px;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
    }

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

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

    .benefit-item {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .benefit-number {
        font-size: 36px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .cta-title {
        font-size: 36px;
    }

    .phone-mockup {
        width: 260px;
        height: 520px;
    }

    .preview-icon {
        font-size: 60px;
    }

    .preview-timer {
        font-size: 48px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0 80px;
    }

    .hero-title {
        font-size: 32px;
    }

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

    .section-title {
        font-size: 28px;
    }

    .problems,
    .features,
    .benefits,
    .seo-content {
        padding: 60px 0;
    }

    .cta {
        padding: 80px 0;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
    }

    .seo-article h2 {
        font-size: 24px;
    }

    .seo-article h3 {
        font-size: 20px;
    }

    .seo-article p {
        font-size: 15px;
        text-align: left;
    }
}