:root {
    /* Light Mode Colors */
    --color-bg: #ffffff;
    --color-bg-alt: #faf9f7;
    --color-text: #1a1a2e;
    --color-text-muted: #64748b;
    --color-primary: #d4a017;
    --color-primary-dark: #b8860b;
    --color-secondary: #0f172a;
    --color-accent: #ffd700;
    --color-border: #e8e4dc;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-primary: #fbbf24;
    --color-primary-dark: #f59e0b;
    --color-secondary: #020617;
    --color-accent: #fbbf24;
    --color-border: #334155;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-main); color: var(--color-text); line-height: 1.6; background-color: var(--color-bg); transition: background-color 0.3s ease, color 0.3s ease; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1.5px solid var(--color-border);
    color: var(--color-text);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}
.theme-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Header & Nav */
.header { background: var(--color-bg); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 100; transition: background-color 0.3s ease, border-color 0.3s ease; }
.nav { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; }
.logo { display: flex; align-items: center; gap: 12px; font-size: 24px; font-weight: 700; color: var(--color-text); text-decoration: none; }
.logo img { height: 40px; width: auto; border-radius: 6px; }
[data-theme="dark"] .logo img { 
    background: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    height: 40px;
}
.nav-links { display: flex; list-style: none; gap: 16px; align-items: center; }
.nav-links a { color: var(--color-text); text-decoration: none; font-weight: 500; }
.nav-links a.active { color: var(--color-primary); }
.btn-nav { background: var(--color-primary); color: #0f172a !important; padding: 8px 16px; border-radius: var(--radius-md); font-weight: 600; }
.btn-nav:hover { background: var(--color-primary-dark); }

/* Hero */
.hero { padding: 100px 0 80px; background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%); transition: background 0.3s ease; }
.hero-tagline { font-size: 14px; font-weight: 600; text-transform: uppercase; color: var(--color-primary); margin-bottom: 16px; display: block; }
.hero h1 { font-size: 48px; margin-bottom: 24px; max-width: 800px; }
.hero-subtitle { font-size: 20px; color: var(--color-text-muted); max-width: 640px; margin-bottom: 40px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.scroll-indicator { margin-top: 60px; color: var(--color-text-muted); font-size: 14px; display: flex; flex-direction: column; align-items: center; gap: 8px; animation: bounce 2s infinite; }
.scroll-indicator svg { color: var(--color-primary); }
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* Buttons */
.btn-primary { background: var(--color-primary); color: #0f172a; padding: 14px 28px; border-radius: var(--radius-md); text-decoration: none; font-weight: 600; display: inline-block; transition: background 0.2s ease; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary { border: 1.5px solid var(--color-border); color: var(--color-text); padding: 14px 28px; border-radius: var(--radius-md); text-decoration: none; font-weight: 600; display: inline-block; transition: all 0.2s ease; }
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* Services */
.services-preview { padding: 80px 0; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.service-card { padding: 32px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); transition: all 0.3s ease; background: var(--color-bg); }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--color-primary); }
.service-icon { color: var(--color-primary); margin-bottom: 20px; }

/* Why Conklude & Badge */
.why-conklude { padding: 80px 0; background: var(--color-bg-alt); transition: background 0.3s ease; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.cert-badge { display: flex; align-items: center; gap: 20px; padding: 24px; background: var(--color-bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); border: 1px solid var(--color-border); transition: all 0.3s ease; }
.cert-icon { width: 60px; height: 60px; background: var(--color-primary); color: #0f172a; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); }

/* CTA Section */
.cta-section { padding: 100px 0; text-align: center; background: var(--color-bg); transition: background 0.3s ease; }
.cta-section h2 { font-size: 36px; margin-bottom: 20px; color: var(--color-text); }
.cta-section p { font-size: 18px; color: var(--color-text-muted); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-section .btn-primary { padding: 16px 40px; font-size: 18px; }

/* Footer */
.footer { background: var(--color-secondary); color: #94a3b8; padding: 60px 0 30px; transition: background 0.3s ease; }
.footer-content { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 30px; flex-wrap: wrap; gap: 20px; }
.footer-logo { display: flex; align-items: center; gap: 10px; color: white; font-size: 20px; font-weight: 700; }
.footer-logo img { height: 40px; width: auto; background: none; padding: 0; border-radius: 0; }
[data-theme="dark"] .footer-logo img { 
    background: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
}
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: #94a3b8; text-decoration: none; transition: color 0.2s ease; }
.footer-links a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; text-align: center; font-size: 14px; }

/* Page Header */
.page-header { padding: 60px 0 40px; background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%); transition: background 0.3s ease; }
.page-header h1 { font-size: 42px; margin-bottom: 16px; color: var(--color-text); }
.page-header p { font-size: 18px; color: var(--color-text-muted); }

/* Service Detail */
.service-detail { padding: 60px 0; }
.service-block { margin-bottom: 60px; }
.service-block h2 { font-size: 28px; margin-bottom: 20px; color: var(--color-text); }
.service-offerings { background: var(--color-bg-alt); padding: 20px 30px; border-radius: var(--radius-md); margin-top: 20px; transition: background 0.3s ease; }
.service-offerings h4 { color: var(--color-text); margin-bottom: 12px; }
.service-offerings ul { list-style: none; margin-top: 10px; }
.service-offerings li { padding: 6px 0; padding-left: 20px; position: relative; color: var(--color-text-muted); }
.service-offerings li::before { content: "→"; position: absolute; left: 0; color: var(--color-primary); }

/* About Page */
.about-content { padding: 60px 0; }
.credential-block { display: flex; gap: 20px; padding: 24px; background: var(--color-bg-alt); border-radius: var(--radius-md); margin: 20px 0; transition: background 0.3s ease; }
.credential-block h4 { color: var(--color-text); margin-bottom: 4px; }
.credential-icon { width: 50px; height: 50px; background: var(--color-primary); color: #0f172a; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); flex-shrink: 0; }

/* Contact Page */
.contact-section { padding: 60px 0; }
.contact-method { display: flex; gap: 16px; align-items: flex-start; margin: 30px 0; }
.contact-icon { width: 48px; height: 48px; background: var(--color-bg-alt); color: var(--color-primary); display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); flex-shrink: 0; transition: background 0.3s ease; }
.contact-detail h4 { color: var(--color-text); }
.contact-detail a { color: var(--color-primary); text-decoration: none; }
.contact-detail a:hover { text-decoration: underline; }

@media (max-width: 768px) {
    .two-col { grid-template-columns: 1fr; gap: 40px; }
    .hero { padding: 60px 0 50px; }
    .hero h1 { font-size: 32px; line-height: 1.2; }
    .hero-subtitle { font-size: 18px; }
    .hero-cta { flex-direction: column; }
    .hero-cta a { width: 100%; text-align: center; }
    .logo { font-size: 18px; gap: 8px; }
    .logo img { height: 32px; }
    .nav { padding: 15px 0; flex-wrap: wrap; }
    .nav-links { gap: 12px; font-size: 14px; }
    .nav-links a { padding: 6px 10px; }
    .services-grid { grid-template-columns: 1fr; }
    .service-card { padding: 24px; }
    .cert-badge { flex-direction: column; text-align: center; }
    .footer-content { flex-direction: column; align-items: center; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
    .page-header { padding: 40px 0 30px; }
    .page-header h1 { font-size: 32px; }
    .scroll-indicator { margin-top: 40px; font-size: 13px; }
    .cta-section { padding: 60px 0; }
    .cta-section h2 { font-size: 28px; }
}