/* Global Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --light-background: #f3f4f6;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header Styles */
header {
    background-color: var(--background);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
    background-color: var(--light-background);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.hero p {
    font-size: 1.25rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

/* URL Form */
.url-form {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--background);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.input-group {
    display: flex;
    gap: 1rem;
}

input[type="url"] {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
}

button {
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--secondary-color);
}

/* Result Section */
.result {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--background);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.url-display {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

.url-display input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    background-color: var(--light-background);
}

.qr-code {
    text-align: center;
    margin: 2rem 0;
}

.qr-code img {
    max-width: 200px;
    margin: 1rem auto;
    display: block;
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.feature {
    text-align: center;
    padding: 2rem;
    background-color: var(--light-background);
    border-radius: 0.5rem;
}

.feature h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

/* Stats Page */
.stats-header {
    text-align: center;
    padding: 2rem 0;
}

.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background-color: var(--light-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
}

.stat-card h3 {
    color: var(--light-text);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
}

.stats-details {
    margin: 2rem 0;
}

.url-info {
    background-color: var(--light-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.visitor-map {
    height: 400px;
    background-color: var(--light-background);
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.click-history table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.click-history th,
.click-history td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.click-history th {
    background-color: var(--light-background);
    font-weight: 500;
}

.stats-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0;
}

/* 404 Page */
.error-page {
    text-align: center;
    padding: 4rem 0;
}

.error-page h1 {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.error-actions {
    margin: 2rem 0;
}

.error-actions a {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    margin: 0 0.5rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 500;
}

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

.btn-contact {
    background-color: var(--light-background);
    color: var(--text-color);
}

.error-suggestions {
    max-width: 600px;
    margin: 2rem auto;
    text-align: left;
}

.error-suggestions ul {
    list-style-type: none;
    padding: 0;
}

.error-suggestions li {
    padding: 0.5rem 0;
    color: var(--light-text);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .input-group {
        flex-direction: column;
    }

    .url-display {
        flex-direction: column;
    }

    .stats-overview {
        grid-template-columns: 1fr;
    }

    .click-history {
        overflow-x: auto;
    }
}

/* Utility Classes */
.btn-export,
.btn-share {
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.btn-share {
    background-color: var(--light-background);
    color: var(--text-color);
}

.btn-export:hover {
    background-color: #059669;
}

.btn-share:hover {
    background-color: var(--border-color);
}