/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --light-background: #f3f4f6;
    --border-color: #e5e7eb;
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header styles */
header {
    background-color: var(--background);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header.scroll-down {
    transform: translateY(-100%);
}

header.scroll-up {
    transform: translateY(0);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo img {
    height: 48px;
    transition: transform 0.3s ease;
}

.logo img:hover {
    transform: scale(1.05);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 1.1rem;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

nav ul li a:hover {
    color: var(--primary-color);
    background-color: var(--light-background);
}

/* Hero section styles */
.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('../imge/hero.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #fff;
    text-align: center;
    padding: 180px 0;
    margin-top: 80px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto 40px;
    color: rgba(255,255,255,0.9);
}

/* Button styles */
.btn {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

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

section:nth-child(even) {
    background-color: var(--light-background);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-color);
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    margin: 48px 0 24px;
    color: var(--text-color);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--text-color);
}

p {
    margin-bottom: 24px;
    color: var(--light-text);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Contact form styles */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--background);
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 24px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-group textarea {
    height: 160px;
    resize: vertical;
}

/* Footer styles */
footer {
    background-color: var(--text-color);
    color: #fff;
    padding: 48px 0;
}

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

footer ul {
    display: flex;
    list-style: none;
    gap: 24px;
}

footer ul li a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

footer ul li a:hover {
    color: #fff;
}

/* Responsive styles */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

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

    .hero p {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    header .container {
        padding: 12px 20px;
    }

    .nav-toggle {
        display: block;
    }

    nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--background);
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        display: none;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 16px;
    }

    .hero {
        padding: 120px 0;
        margin-top: 60px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.2rem;
    }

    footer .container {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    footer ul {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 1rem;
    }
}