* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --text-dark: #1d1d1f;
    --text-light: #86868b;
    --bg-light: #f5f5f7;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
}

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

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

@media (max-width: 640px) {
    .container {
        padding: 0 15px;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

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

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.app-logo {
    width: 120px;
    height: 120px;
    border-radius: 27px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 1.5rem;
    margin-bottom: 20px;
    opacity: 0.9;
    font-weight: 500;
}

.description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.8;
    max-width: 500px;
}

/* Coming Soon Badge */
.coming-soon {
    margin-top: 40px;
}

.badge {
    display: inline-block;
    background: linear-gradient(135deg, #ffd89b 0%, #19547b 100%);
    color: white;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.launch-text {
    margin-top: 15px;
    font-size: 1rem;
    opacity: 0.9;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    }
}

/* Watch Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease-out;
}

.watch-mockup {
    position: relative;
    width: 300px;
    height: 300px;
    background: linear-gradient(145deg, #2d2d2d, #1a1a1a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.3),
        inset 0 0 20px rgba(255, 255, 255, 0.05);
    animation: float 3s ease-in-out infinite;
}

.watch-mockup::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.watch-screen {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

/* Screenshots Carousel Section */
.screenshots {
    padding: 120px 0;
    background: var(--white);
}

.screenshots h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 60px;
}

.carousel-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.carousel-wrapper {
    flex: 1;
    overflow: hidden;
    border-radius: 20px;
    background: var(--bg-light);
    box-shadow: var(--shadow-lg);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.carousel-slide {
    min-width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.carousel-slide img {
    max-width: 300px;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.carousel-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.carousel-btn:active {
    transform: scale(0.95);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-light);
    opacity: 0.3;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot:hover {
    opacity: 0.6;
}

.dot.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 1;
    transform: scale(1.3);
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--bg-light);
}

.features h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 60px;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

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

/* CTA Section */
.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    text-align: center;
}

.cta h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 0;
}

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

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

/* 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 float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .tagline {
        font-size: 1.3rem;
    }

    .description {
        font-size: 1.1rem;
        max-width: 100%;
    }

    .watch-mockup {
        width: 250px;
        height: 250px;
    }

    .watch-screen {
        width: 160px;
        height: 160px;
    }

    .carousel-container {
        gap: 10px;
    }

    .carousel-btn {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .carousel-slide {
        padding: 30px 20px;
    }

    .carousel-slide img {
        max-width: 260px;
    }

    .features h2,
    .screenshots h2,
    .cta h2 {
        font-size: 2.5rem;
    }

    footer .container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

/* Small tablets and large phones */
@media (max-width: 768px) {
    .hero {
        padding: 40px 0;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .screenshots,
    .features,
    .cta {
        padding: 80px 0;
    }

    .carousel-slide img {
        max-width: 240px;
    }
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero {
        min-height: auto;
        padding: 60px 0;
    }

    .tagline {
        font-size: 1.1rem;
    }

    .description {
        font-size: 1rem;
    }

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

    .app-logo {
        width: 100px;
        height: 100px;
    }

    .badge {
        font-size: 1rem;
        padding: 12px 30px;
        letter-spacing: 1px;
    }

    .launch-text {
        font-size: 0.9rem;
    }

    .carousel-container {
        gap: 0;
        flex-direction: column;
    }

    .carousel-btn {
        display: none;
    }

    .carousel-slide {
        padding: 30px 10px;
    }

    .carousel-slide img {
        max-width: 220px;
        border-radius: 20px;
    }

    .carousel-dots {
        margin-top: 30px;
    }

    .dot {
        width: 10px;
        height: 10px;
    }

    .screenshots h2 {
        font-size: 2rem;
    }

    .features h2,
    .cta h2 {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 40px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .feature-icon {
        font-size: 2.5rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 15px;
    }
}

/* Extra small phones */
@media (max-width: 375px) {
    .hero h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .description {
        font-size: 0.95rem;
    }

    .app-logo {
        width: 80px;
        height: 80px;
    }

    .badge {
        font-size: 0.9rem;
        padding: 10px 25px;
    }

    .carousel-slide img {
        max-width: 180px;
        border-radius: 15px;
    }

    .carousel-slide {
        padding: 20px 5px;
    }

    .screenshots h2,
    .features h2,
    .cta h2 {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    .feature-card h3 {
        font-size: 1.2rem;
    }

    .feature-card p {
        font-size: 0.95rem;
    }

    .watch-mockup {
        width: 200px;
        height: 200px;
    }

    .watch-screen {
        width: 130px;
        height: 130px;
    }
}