/* Evidence Timeline Website Styles */

:root {
    --primary-color: #1976D2;
    --primary-hover: #1565C0;
    --secondary-color: #2C3E50;
    --text-dark: #2C3E50;
    --text-gray: #5A6C7D;
    --bg-light: #F8F9FA;
    --border-color: #E1E8ED;
    --white: #ffffff;
    --success: #10b981;
    --max-width: 1200px;
}

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

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

/* Header & Navigation */
header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    color: var(--white);
    padding: 5rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    max-width: 200px;
    margin: 0 auto 2rem;
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.hero-logo img {
    width: 100%;
    height: auto;
    display: block;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

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

.btn-download:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Main Content */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 2rem;
}

.content-section {
    margin-bottom: 3rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

p {
    margin-bottom: 1rem;
    color: var(--text-gray);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 0.5rem;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(25, 118, 210, 0.15);
}

.feature-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Download Section */
.download-card {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.download-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.version-badge {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.latest-badge {
    background-color: var(--success);
}

.download-info {
    color: var(--text-gray);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Changelog */
.changelog-entry {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.changelog-entry:last-child {
    border-bottom: none;
}

.changelog-version {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.changelog-date {
    color: var(--text-gray);
    font-size: 0.875rem;
}

.changelog-content ul {
    list-style: none;
    padding-left: 0;
}

.changelog-content li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
}

.changelog-content li:before {
    content: "•";
    position: absolute;
    left: 0.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* Support Section */
.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.support-card {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.support-card h3 {
    margin-bottom: 0.5rem;
}

.support-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.support-card a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-gray);
    margin-top: 4rem;
}

footer p {
    margin: 0.5rem 0;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mt-2 {
    margin-top: 2rem;
}

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

    .hero p {
        font-size: 1rem;
    }

    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }

    nav {
        flex-direction: column;
        align-items: flex-start;
    }

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