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

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --primary: #000000;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--black);
    letter-spacing: -0.5px;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.logo-img:hover {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--black);
    transition: var(--transition);
}

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

.nav-download-btn {
    background-color: var(--black) !important;
    color: var(--white) !important;
    padding: 10px 20px !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    transition: var(--transition) !important;
    border: none !important;
}

.nav-download-btn::after {
    display: none !important;
}

.nav-download-btn:hover {
    background-color: var(--gray-800) !important;
    color: var(--white) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--black);
    transition: var(--transition);
}

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

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 40px 24px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 18px;
        padding: 12px 0;
    }
}

/* Hero Section */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    color: var(--black);
}

.gradient-text {
    background: linear-gradient(135deg, var(--gray-700) 0%, var(--black) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background-color: var(--gray-800);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background-color: transparent;
    color: var(--black);
    border: 2px solid var(--gray-300);
}

.btn-secondary:hover {
    border-color: var(--black);
    background-color: var(--gray-50);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding-top: 60px;
    border-top: 1px solid var(--gray-200);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 700;
    color: var(--black);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background-color: var(--white);
}

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

.feature-card {
    padding: 40px;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    transition: var(--transition);
    background-color: var(--white);
}

.feature-card:hover {
    border-color: var(--gray-400);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-card-with-image {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 0;
    overflow: hidden;
    background-color: transparent;
    border: none;
}

.feature-card-with-image:hover {
    transform: none;
    box-shadow: none;
    border: none;
}

.feature-content {
    padding: 40px;
}

.feature-image {
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    padding: 20px;
}

.app-feature-screenshot {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    background: transparent;
    mix-blend-mode: multiply;
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.feature-description {
    font-size: 16px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    background-color: var(--gray-50);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.step-item {
    text-align: center;
    padding: 20px;
}

.step-number {
    font-size: 72px;
    font-weight: 700;
    color: var(--gray-200);
    line-height: 1;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
}

.step-description {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* Premium Section */
.premium {
    background-color: var(--black);
    color: var(--white);
}

.premium .section-title,
.premium .section-subtitle {
    color: var(--white);
}

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

.premium-features {
    list-style: none;
    margin: 60px 0 40px;
}

.premium-features li {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    align-items: flex-start;
}

.premium-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.premium-icon svg {
    width: 100%;
    height: 100%;
}

.premium-features li div {
    flex: 1;
}

.premium-features li strong {
    display: block;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--white);
}

.premium-features li p {
    font-size: 16px;
    color: var(--gray-300);
    line-height: 1.6;
}

.premium .btn-primary {
    background-color: var(--white);
    color: var(--black);
}

.premium .btn-primary:hover {
    background-color: var(--gray-200);
}

/* App Showcase Section */
.app-showcase {
    background-color: var(--white);
    padding: 100px 0;
}

.carousel-container {
    position: relative;
    max-width: 1400px;
    margin: 60px auto 0;
    padding: 0 80px;
}

.carousel-wrapper {
    overflow: hidden;
    border-radius: 20px;
    background: transparent;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 30px;
}

.carousel-item {
    min-width: calc(33.333% - 20px);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: transparent;
}

.carousel-item-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 20px;
    text-align: center;
    letter-spacing: -0.5px;
}

.carousel-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    background: transparent;
}

.carousel-image {
    max-width: 100%;
    max-height: 400px;
    height: auto;
    width: auto;
    object-fit: contain;
    border-radius: 12px;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--black);
    color: var(--white);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.carousel-btn:hover {
    background-color: var(--gray-800);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn-prev {
    left: 0;
}

.carousel-btn-next {
    right: 0;
}

.carousel-btn svg {
    width: 24px;
    height: 24px;
}


/* Download Section */
.download {
    background-color: var(--white);
    text-align: center;
}

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    text-decoration: none;
    color: var(--black);
    transition: var(--transition);
    background-color: var(--white);
}

.download-btn:hover {
    border-color: var(--black);
    background-color: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.download-btn svg {
    flex-shrink: 0;
    stroke: var(--black);
}

.download-label {
    font-size: 12px;
    color: var(--gray-600);
    text-align: left;
}

.download-platform {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    text-align: left;
}

/* Footer */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 12px;
}

.footer-brand .logo-img {
    height: 60px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-tagline {
    font-size: 15px;
    color: var(--gray-400);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
}

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

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

.footer-column a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .carousel-container {
        padding: 0 50px;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
    }

    .carousel-btn svg {
        width: 20px;
        height: 20px;
    }
}

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

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

    .logo-text {
        font-size: 18px;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .carousel-container {
        padding: 0 50px;
    }

    .carousel-item {
        min-width: calc(50% - 15px);
    }

    .carousel-item-title {
        font-size: 18px;
    }

    .carousel-image {
        max-height: 300px;
    }

    .carousel-btn {
        width: 36px;
        height: 36px;
    }

    .carousel-btn svg {
        width: 18px;
        height: 18px;
    }

    .hero-title {
        font-size: 42px;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 40px;
    }

    section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 50px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

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

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

    .feature-card {
        padding: 30px;
    }

    .logo-img {
        height: 40px;
    }

    .logo-text {
        font-size: 16px;
    }

    .footer-brand .logo-img {
        height: 50px;
    }

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

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

    .carousel-container {
        padding: 0 40px;
    }

    .carousel-item {
        min-width: 100%;
    }

    .carousel-item-title {
        font-size: 16px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}