:root {
    --primary-color: #2D3436;
    --secondary-color: #636E72;
    --accent-color: #396993;
    --text-color: #2D3436;
    --background-color: #FFFFFF;
    --light-gray: #F5F6FA;
    --page-background: #F8F9FA;
    --gradient-primary: linear-gradient(135deg, #396993 0%, #4A7BA3 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--page-background);
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo img {
    height: 40px;
    width: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo img:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
}

.nav-links a {
    margin-left: 2.5rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.05;
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    position: relative;
    z-index: 1;
    gap: 4rem;
    min-height: calc(100vh - 8rem);
}

.hero-text {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 2rem;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 0;
    color: var(--primary-color);
    line-height: 1.2;
    letter-spacing: -1px;
    width: 100%;
    text-align: center;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 0;
    line-height: 1.6;
    width: 100%;
    text-align: center;
}

.hero-logo {
    margin-bottom: 0;
    display: flex;
    justify-content: center;
}

.hero-logo img {
    width: 120px;
    height: auto;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
    transition: var(--transition);
}

.hero-logo img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2));
}

.device-container {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    gap: 2rem;
    align-items: center;
    transform: translateY(0);
    transition: var(--transition);
}

.device-container:hover {
    transform: translateY(-10px);
}

.iphone-container,
.ipad-container {
    position: relative;
    margin: 1rem;
    filter: drop-shadow(var(--shadow-lg));
}

.device-frame {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.device-content {
    position: relative;
    z-index: 1;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.device-content:hover {
    transform: scale(1.02);
}

.iphone-container .device-content {
    width: 300px;
    height: 650px;
    object-fit: cover;
}

.ipad-container .device-content {
    width: 500px;
    height: 700px;
    object-fit: cover;
}

/* Screenshot Slider */
.screenshot-container {
    position: relative;
    flex: 0 0 auto;
    margin: 0 1rem;
}

.screenshot-container .device-content {
    width: 300px;
    height: 650px;
    object-fit: cover;
}

.screenshot-container:nth-child(even) .device-content {
    width: 500px;
    height: 700px;
}

.screenshot-slider {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 2rem;
    scroll-snap-type: x mandatory;
    max-width: 1200px;
    margin: 0 auto;
    -webkit-overflow-scrolling: touch;
}

.screenshot-container {
    scroll-snap-align: start;
}

/* Screenshots Section */
.screenshots {
    padding: 4rem 2rem;
}

.screenshots h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

/* Download Section */
.download {
    padding: 6rem 2rem;
    text-align: center;
    background-color: var(--background-color);
}

.download h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-top: 1rem;
}

.cta-buttons img {
    height: 48px;
    transition: var(--transition);
}

.cta-buttons img:hover {
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: var(--background-color);
    padding: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-links a {
    color: var(--background-color);
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s ease;
}

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

/* Countdown Section */
.countdown {
    padding: 6rem 2rem;
    background-color: var(--background-color);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.countdown::before {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    opacity: 0.1;
    transform: rotate(45deg);
    z-index: 0;
}

.countdown h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    position: relative;
}

.countdown h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.countdown-container {
    display: flex;
    justify-content: center;
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.countdown-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.countdown-number {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.countdown-label {
    font-size: 1rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    background-color: var(--light-gray);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    opacity: 0.1;
    transform: rotate(-45deg);
    z-index: 0;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.features h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: var(--background-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .hero-text {
        align-items: center;
        text-align: center;
    }

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

    .device-container {
        justify-content: center;
        flex-direction: column;
        gap: 1rem;
    }

    .iphone-container .device-content,
    .ipad-container .device-content {
        width: 100%;
        max-width: 300px;
        height: auto;
    }

    .screenshot-container .device-content {
        width: 100%;
        max-width: 300px;
        height: auto;
    }

    .screenshot-container:nth-child(even) .device-content {
        width: 100%;
        max-width: 300px;
        height: auto;
    }

    .countdown-container {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .countdown-item {
        min-width: 100px;
        padding: 1.5rem;
    }

    .countdown-number {
        font-size: 2.5rem;
    }

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

/* Content Sections */
.content-section {
    padding: 8rem 2rem 4rem;
    max-width: 800px;
    margin: 0 auto;
}

.content-section h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
}

.content-section h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 2rem 0 1rem;
}

.content-section h3 {
    font-size: 1.4rem;
    color: var(--secondary-color);
    margin: 1.5rem 0 1rem;
}

.content-section p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.content-section .container {
    background: var(--background-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 2rem auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.1);
}

.submit-button {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

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

.submit-button:active {
    transform: translateY(0);
}