/* Variables */
:root {
    --primary: #0a0a0a;
    --secondary: #1f1f1f;
    --accent: #0056ff; /* Elektrik Mavisi */
    --accent-hover: #0043c7;
    --text-main: #333333;
    --text-muted: #666666;
    --bg-light: #ffffff;
    --bg-gray: #f7f7f8;
    --border: #e2e2e2;
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-main); color: var(--text-main); background: var(--bg-light); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
h1, h2, h3, h4 { color: var(--primary); font-weight: 800; line-height: 1.2; }
.text-accent { color: var(--accent); }
.text-large { font-size: 1.2rem; color: var(--text-muted); }
.bg-gray { background-color: var(--bg-gray); }
.bg-dark { background-color: var(--primary); }
.text-white h2, .text-white h4 { color: #fff; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }

/* Typography */
h1 { font-size: 3rem; margin-bottom: 1rem; }
h2 { font-size: 2.2rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }

/* Layout & Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 5rem 0; }
.page-padding { padding: 4rem 0; }
.text-center { text-align: center; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; font-weight: 600; border-radius: 4px; cursor: pointer; transition: var(--transition); border: 2px solid transparent; font-size: 1rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-full { width: 100%; }
.btn-whatsapp { background: #25D366; color: #fff; gap: 8px; }
.btn-whatsapp:hover { background: #1ebe57; }

/* Header */
.header { border-bottom: 1px solid var(--border); background: var(--bg-light); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }
.logo span { color: var(--accent); }
.nav-list { display: flex; gap: 2rem; }
.nav-list a { font-weight: 600; color: var(--text-muted); }
.nav-list a:hover, .nav-list a.active { color: var(--primary); }
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--primary); }

/* Hero */
.hero { padding: 6rem 0; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-content p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 2rem; }
.hero-buttons { display: flex; gap: 1rem; }

/* Placeholders */
.placeholder-img { background: var(--bg-gray); border: 1px dashed #ccc; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 400px; border-radius: 8px; color: var(--text-muted); }
.placeholder-img i { font-size: 3rem; margin-bottom: 1rem; color: #ccc; }
.placeholder-img.large { height: 100%; min-height: 400px; }

/* Grid Systems */
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.grid-2-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Cards & Badges */
.card { background: var(--bg-light); border: 1px solid var(--border); padding: 2rem; border-radius: 8px; transition: var(--transition); }
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.card-icon { font-size: 2rem; color: var(--accent); margin-bottom: 1rem; }
.badge { display: inline-block; background: var(--bg-gray); padding: 4px 12px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; color: var(--text-muted); margin-top: 1rem; border: 1px solid var(--border); }
.badge-large { font-size: 1rem; padding: 8px 16px; margin-right: 1rem; margin-top: 0;}

/* Process Timeline */
.timeline { display: flex; flex-direction: column; gap: 2rem; max-width: 800px; margin: 0 auto; }
.timeline-item { display: flex; gap: 1.5rem; background: var(--bg-light); padding: 2rem; border-radius: 8px; border: 1px solid var(--border); }
.timeline-icon { background: var(--primary); color: #fff; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-weight: bold; flex-shrink: 0; }

/* Service Detail */
.service-detail-block { border-bottom: 1px solid var(--border); padding: 4rem 0; }
.service-detail-block:last-child { border-bottom: none; }
.service-content ul { margin: 1.5rem 0; padding-left: 1.5rem; list-style: disc; color: var(--text-muted); }
.service-content ul li { margin-bottom: 0.5rem; }
.service-meta { display: flex; align-items: center; margin-top: 2rem; flex-wrap: wrap; gap:1rem;}

/* About & Vision */
.vision-box { background: var(--primary); color: #fff; padding: 4rem 2rem; border-radius: 8px; }
.vision-box h2 { color: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.vision-highlight { background: var(--bg-gray); padding: 2rem; border-left: 4px solid var(--accent); border-radius: 4px;}

/* Form */
.form-container { max-width: 700px; margin: 0 auto; }
.form-header { margin-bottom: 3rem; }
.custom-form .form-group { margin-bottom: 1.5rem; }
.custom-form label { display: block; margin-bottom: 0.5rem; font-weight: 600; font-size: 0.9rem; }
.custom-form input, .custom-form select, .custom-form textarea { width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 4px; font-family: inherit; font-size: 1rem; background: var(--bg-gray); transition: var(--transition);}
.custom-form input:focus, .custom-form select:focus, .custom-form textarea:focus { outline: none; border-color: var(--accent); background: #fff; }
.form-message { margin-top: 1rem; padding: 1rem; background: #e6f7ef; color: #0d8246; border-radius: 4px; text-align: center; font-weight: 600; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.contact-list li { display: flex; gap: 1rem; margin-bottom: 1.5rem; align-items: flex-start; }
.contact-list i { font-size: 1.5rem; margin-top: 4px; }

/* Footer */
.footer { background: var(--primary); color: #fff; padding: 4rem 0 2rem; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer h3, .footer h4 { color: #fff; margin-bottom: 1rem; }
.footer p, .footer a { color: #a3a3a3; }
.footer ul li { margin-bottom: 0.5rem; }
.footer a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid #333; padding-top: 2rem; text-align: center; font-size: 0.9rem; }

/* Animations & Utilities */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    .hero-inner, .about-grid { grid-template-columns: 1fr; }
    .hero-buttons { justify-content: flex-start; }
    .footer-inner { grid-template-columns: 1fr; text-align: center; }
}
@media (max-width: 768px) {
    .nav { display: none; position: absolute; top: 80px; left: 0; width: 100%; background: var(--bg-light); padding: 2rem; border-bottom: 1px solid var(--border); box-shadow: 0 10px 10px rgba(0,0,0,0.05); }
    .nav.active { display: block; }
    .nav-list { flex-direction: column; gap: 1rem; text-align: center; }
    .menu-toggle { display: block; }
    .nav-cta { display: none; } /* Hide CTA in header on mobile to save space */
    .grid-2-form, .contact-grid { grid-template-columns: 1fr; }
    .hero { padding: 4rem 0; text-align: center; }
    .hero-buttons { justify-content: center; }
    h1 { font-size: 2rem; }
}