/* Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    --text-color: #1f2937;
    --light-bg: #f9fafb;
    --white: #ffffff;
    --border-color: #e5e7eb;
    --primary-color: #3b82f6; /* Default overwritten by PHP */
    --accent-color: #10b981;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.btn {
    display: inline-block;
    padding: 12px 28px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    filter: brightness(110%);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-secondary {
    background-color: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--light-bg);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Header */
.header {
    background-color: rgb(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
}

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

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-color);
}

.header nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

.header nav a:not(.btn) {
    font-size: 0.95rem;
    color: #4b5563;
}

.header nav a:not(.btn):hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--light-bg) 0%, white 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-text p {
    font-size: 1.125rem;
    color: #4b5563;
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Features */
.features {
    padding: 80px 0;
}

.features .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 30px;
    border-radius: 12px;
    background-color: white;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.feature-card p {
    color: #6b7280;
}

/* About */
.about {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.about-content p {
    color: #4b5563;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.check-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    font-weight: 500;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Contact */
.contact {
    padding: 100px 0;
}

.contact-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-box h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.contact-box > p {
    color: #6b7280;
    margin-bottom: 40px;
}

.contact-form {
    text-align: left;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    ring: 2px solid var(--primary-color);
}

.gdpr-hint {
    font-size: 0.8rem;
    color: #9ca3af;
    margin-top: 16px;
    text-align: center;
}

.alert {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 500;
}

.success {
    background-color: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Footer */
.footer {
    background-color: #111827;
    color: #d1d5db;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-col a {
    display: block;
    margin-bottom: 10px;
    color: #9ca3af;
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #374151;
    font-size: 0.9rem;
    color: #6b7280;
}

/* Responsiveness */
@media (max-width: 768px) {
    .header nav {
        display: none; /* Simplification */
    }
    
    .hero-grid,
    .about-grid,
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .features .container {
        grid-template-columns: 1fr;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}