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

:root {
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-accent: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

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

/* ===================================
   Header / Navigation
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.logo-text {
    font-size: 2rem;
    font-weight: 800;
    color: #000000;
}

@media (max-width: 968px) {
    .logo-text {
        font-size: 1.5rem;
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

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

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-download {
    background: var(--text-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-download i {
    font-size: 2rem;
}

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

.btn-download-label {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
}

.btn-download-store {
    font-size: 1.125rem;
    font-weight: 600;
}

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding: 8rem 2rem 6rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    overflow: hidden;
}

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

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.hero-title-main {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-sub {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    width: 100%;
    max-width: 400px;
    position: relative;
    animation: floatImage 6s ease-in-out infinite;
}

.hero-mockup-image {
    width: 100%;
    height: auto;
    border-radius: 2rem;
    box-shadow: var(--shadow-xl);
    transition: transform 0.3s ease;
}

.hero-mockup-image:hover {
    transform: scale(1.05);
}

@keyframes floatImage {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Features Section
   =================================== */
.features {
    padding: 6rem 2rem;
    background: var(--bg-primary);
}

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

.feature-card {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===================================
   Detail Sections
   =================================== */
.detail-section {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
}

.detail-section:nth-child(even) {
    background: var(--bg-primary);
}

.detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.detail-section-reverse .detail-content {
    direction: rtl;
}

.detail-section-reverse .detail-text {
    direction: ltr;
}

.detail-image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #e0e7ff, #ddd6fe);
    border-radius: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.detail-image-placeholder i {
    font-size: 5rem;
    color: rgba(0, 0, 0, 0.1);
}

.detail-section-image {
    width: 100%;
    height: auto;
    border-radius: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.detail-section-image:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.detail-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.detail-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.detail-list {
    list-style: none;
    margin-bottom: 2rem;
}

.detail-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.detail-list i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 4rem 2rem 2rem;
}

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

.footer-content-simple {
    text-align: center;
    margin-bottom: 3rem;
}

.footer-section-center {
    max-width: 600px;
    margin: 0 auto;
}

.footer-links-inline {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.footer-links-inline li a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.footer-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
}

@media (max-width: 968px) {
    .footer-title {
        font-size: 1.5rem;
    }
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        gap: 0;
    }

    .nav-menu.active li {
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active li:last-child {
        border-bottom: none;
    }

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

    .hero-title-main,
    .hero-title-sub {
        font-size: 2.5rem;
    }

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

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

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

    .detail-content {
        grid-template-columns: 1fr;
    }

    .detail-section-reverse .detail-content {
        direction: ltr;
    }

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

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

@media (max-width: 640px) {
    .hero {
        padding: 6rem 1rem 4rem;
    }

    .hero-title-main,
    .hero-title-sub {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .cta-title {
        font-size: 2rem;
    }
}

/* ===================================
   Legal Pages (Privacy Policy, Terms)
   =================================== */
.legal-page {
    padding-top: 80px;
    min-height: 100vh;
    background: var(--bg-secondary);
}

.legal-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.legal-container h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.legal-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 0.5rem;
}

.last-updated {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 3rem;
}

.legal-intro {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    line-height: 1.8;
}

.legal-intro p {
    margin-bottom: 1rem;
}

.legal-intro p:last-child {
    margin-bottom: 0;
}

.legal-section {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.legal-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.legal-section > p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.legal-section ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-section ol li {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.legal-section ul {
    margin-left: 2rem;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.legal-section ul li {
    margin-bottom: 0.5rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.legal-section strong {
    color: var(--text-primary);
    font-weight: 600;
}

.legal-footer {
    background: var(--bg-accent);
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
    text-align: center;
}

.legal-footer p {
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.legal-footer p:last-child {
    margin-bottom: 0;
}

.legal-navigation {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.btn-back,
.btn-link {
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

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

.btn-back:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-link:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.separator {
    color: rgba(255, 255, 255, 0.5);
    margin: 0 0.5rem;
}

.footer-links-inline a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.disclaimer {
    font-size: 0.875rem;
    margin-top: 1rem;
}

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

.nav-menu a.active::after {
    width: 100%;
}

/* Legal Page Responsive */
@media (max-width: 968px) {
    .legal-container {
        padding: 3rem 1.5rem;
    }

    .legal-container h1 {
        font-size: 2rem;
    }

    .legal-section h2 {
        font-size: 1.25rem;
    }
}

@media (max-width: 640px) {
    .legal-container {
        padding: 2rem 1rem;
    }

    .legal-container h1 {
        font-size: 1.75rem;
    }

    .legal-section {
        padding: 1.5rem;
    }

    .legal-intro {
        padding: 1.5rem;
    }

    .legal-navigation {
        flex-direction: column;
    }

    .btn-back,
    .btn-link {
        width: 100%;
        text-align: center;
    }
}