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

:root {
    --orange: #FF6B35;
    --orange-dark: #E85A2B;
    --orange-light: #FFF4ED;
    --header-bg: #2C3E50;
    --header-text: #ECF0F1;
    --text: #2C3E50;
    --text-light: #5D6D7E;
    --bg: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-alt: #F5F6F7;
    --border: #D5DBDB;
    --shadow: rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--header-bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--header-text);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--orange-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23FF6B35" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text);
}

.hero p {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 30px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--orange);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s;
}

.btn:hover {
    background: var(--orange-dark);
}

/* Sections */
section {
    padding: 80px 0;
    position: relative;
}

section:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--orange), transparent);
    border-radius: 2px;
}

section h2 {
    font-size: 36px;
    margin-bottom: 40px;
    text-align: center;
    color: var(--text);
    position: relative;
    padding-bottom: 15px;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--orange);
    border-radius: 2px;
}

/* Apps Section */
.apps-section {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 10px var(--shadow);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 400px;
    margin: 0 auto;
}

.app-card {
    padding: 30px;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 15px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--orange), var(--orange-dark));
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow);
}

.app-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text);
}

.app-card p {
    color: var(--text-light);
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, var(--orange-light) 0%, var(--bg-light) 100%);
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--orange), var(--orange-dark), var(--orange));
}

.contact-email {
    text-align: center;
    font-size: 18px;
    margin-bottom: 40px;
    color: var(--text);
}

.contact-email a {
    color: var(--orange);
    text-decoration: none;
}

.contact-email a:hover {
    text-decoration: underline;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 30px var(--shadow);
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 16px;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--orange);
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 20px;
    }

    .hero h1 {
        font-size: 36px;
    }

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

    section h2 {
        font-size: 28px;
    }

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