/* EDAUtils Modern Design - Shared Stylesheet */

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

:root {
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --light-bg: #f8fafc;
    --border-color: #e2e8f0;
    --text-dark: #333;
    --text-light: #64748b;
    --text-medium: #475569;
}

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

/* Header & Navigation */
header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: white;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 0;
    list-style: none;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links li {
    position: relative;
}

.nav-links li:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 20px;
    background: rgba(255,255,255,0.3);
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    display: block;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    background: rgba(255,255,255,0.1);
}

.nav-links a.active {
    background: rgba(255,255,255,0.2);
    font-weight: 600;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

.btn {
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: 2px solid transparent;
    display: inline-block;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Section Headings */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.2rem;
}

/* Content */
.content {
    line-height: 1.8;
}

.content h2 {
    color: var(--primary-blue);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.content h3 {
    color: var(--primary-blue);
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    font-size: 1.4rem;
}

.content h4 {
    color: var(--text-dark);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.content p {
    margin-bottom: 1rem;
    color: var(--text-medium);
}

.content ul, .content ol {
    margin: 1rem 0 1rem 2rem;
    color: var(--text-medium);
}

.content li {
    margin-bottom: 0.5rem;
}

.content a {
    color: var(--secondary-blue);
    text-decoration: none;
    font-weight: 500;
}

.content a:hover {
    text-decoration: underline;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: var(--secondary-blue);
}

.card h3 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.card p {
    color: var(--text-medium);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.card a {
    color: var(--secondary-blue);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.card a:hover {
    gap: 0.8rem;
}

/* Feature List */
.feature-list {
    background: var(--light-bg);
    border-left: 4px solid var(--secondary-blue);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

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

.feature-list ul {
    list-style: none;
    margin-left: 0;
}

.feature-list li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.8rem;
}

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

/* Testimonials */
.testimonial {
    background: var(--light-bg);
    border-left: 4px solid var(--secondary-blue);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
    font-style: italic;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-blue);
    margin-top: 1rem;
    font-style: normal;
}

/* Trust Banner */
.trust-banner {
    background: var(--light-bg);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.trust-banner p {
    color: var(--text-light);
    font-size: 0.95rem;
    max-width: 1200px;
    margin: 0 auto;
}

.trust-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border-radius: 8px;
    overflow: hidden;
}

thead {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

tr:hover {
    background: var(--light-bg);
}

/* FAQ */
.faq-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.faq-question {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.faq-answer {
    color: var(--text-medium);
    line-height: 1.7;
}

.faq-answer code {
    background: var(--light-bg);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.video-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    transition: all 0.3s;
}

.video-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.video-card a {
    color: var(--secondary-blue);
    font-weight: 500;
    text-decoration: none;
}

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

/* Footer */
footer {
    background: #1e293b;
    color: white;
    padding: 3rem 2rem 2rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #94a3b8;
    font-size: 0.9rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 968px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-blue);
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li::after {
        display: none;
    }

    .nav-links a {
        padding: 1rem 2rem;
        width: 100%;
    }

    .mobile-toggle {
        display: block;
    }

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

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

    .section-title {
        font-size: 2rem;
    }

    .trust-stats {
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

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

@media (max-width: 640px) {
    .container, .container-wide {
        padding: 2rem 1rem;
    }

    .hero {
        padding: 3rem 1.5rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    nav {
        padding: 0 1rem;
    }
}