/* Test Landing — Shared Styles */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.6);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #60a5fa;
    --accent-gradient: linear-gradient(135deg, #60a5fa, #a78bfa);
    --border: rgba(148, 163, 184, 0.1);
    --border-hover: rgba(59, 130, 246, 0.3);
    --success: #22c55e;
    --radius: 12px;
    --radius-sm: 8px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --nav-bg: rgba(30, 41, 59, 0.85);
    --footer-bg: #1e293b;
    --input-bg: #1e293b;
}

body.light-mode {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.8);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent: #2563eb;
    --accent-gradient: linear-gradient(135deg, #2563eb, #7c3aed);
    --border: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(37, 99, 235, 0.3);
    --success: #16a34a;
    --nav-bg: rgba(255, 255, 255, 0.9);
    --footer-bg: #ffffff;
    --input-bg: #ffffff;
}

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

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
nav {
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    padding: 0.25rem 0;
}

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

/* Toggle buttons (language + dark mode) */
.nav-toggles {
    display: flex;
    gap: 0.5rem;
    margin-left: 1.5rem;
}

.toggle-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    transition: all 0.2s;
    font-family: var(--font);
    line-height: 1;
}

.toggle-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Main content */
main {
    flex: 1;
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 2rem;
    width: 100%;
}

/* Hero section */
.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 2rem;
}

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

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: all 0.2s;
}

.card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.card .icon { font-size: 2rem; margin-bottom: 0.75rem; }
.card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: #3b82f6;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background: rgba(59, 130, 246, 0.1);
}

/* Section titles */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
}

/* Footer */
footer {
    background: var(--footer-bg);
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

/* Form styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* About page */
.about-content {
    max-width: 700px;
    margin: 0 auto;
}

.about-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

/* Service detail */
.service-detail {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.service-detail h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.service-detail p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact info */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.contact-item .icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive — Tablets */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .nav-links { gap: 0.75rem; }
    .nav-links a { font-size: 0.8rem; }
    .nav-toggles { margin-left: 0.75rem; }
    .toggle-btn { font-size: 0.7rem; padding: 0.25rem 0.5rem; }
    main { padding: 2rem 1rem; }
    .grid { grid-template-columns: 1fr; }
    .contact-info { grid-template-columns: 1fr 1fr; }
    .slideshow { width: 90%; }
    .hero { padding: 2rem 0; }
    .section-title { font-size: 1.5rem; }
}

/* Responsive — Phones */
@media (max-width: 480px) {
    .nav-container { flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
    .nav-links { flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
    .nav-links a { font-size: 0.75rem; }
    .nav-toggles { margin-left: 0; }
    .hero h1 { font-size: 1.5rem; }
    .hero p { font-size: 0.95rem; }
    .grid { grid-template-columns: 1fr; }
    .contact-info { grid-template-columns: 1fr; }
    .slideshow { width: 95%; }
    .slideshow-arrow { width: 32px; height: 32px; font-size: 1rem; }
    .service-detail { padding: 1.25rem; }
    .contact-item { padding: 1rem; }
    .card { padding: 1rem; }
    main { padding: 1.5rem 0.75rem; }
    .section-title { font-size: 1.3rem; }
    .section-subtitle { font-size: 0.9rem; }
}