/* =========================================
   CSS Variables & Theme - Nu Digital Style
   ========================================= */
:root {
    --brand-green: #2d8a4e;
    --brand-green-light: #3da55f;
    --brand-yellow: #f4c430;
    --brand-yellow-dark: #e6b800;
    --brand-red: #d42b2b;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8faf9;
    --bg-alt: #f0f4f2;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --accent: var(--brand-green);
    --accent-hover: var(--brand-green-light);
    --cta: var(--brand-yellow);
    --cta-hover: var(--brand-yellow-dark);
    --cta-text: #1a1a1a;
    --border: #e2e8f0;
    --card-bg: #ffffff;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius: 12px;
    --transition: 0.3s ease;
    --font-en: 'Inter', sans-serif;
    --font-am: 'Noto Sans Ethiopic', sans-serif;
}

[data-theme="dark"] {
    --bg-primary: #0a1f14;
    --bg-secondary: #0d2818;
    --bg-alt: #112d1e;
    --text-primary: #ffffff;
    --text-secondary: #b8d4c4;
    --accent: var(--brand-green-light);
    --accent-hover: #4ec76f;
    --cta: var(--brand-yellow);
    --cta-hover: var(--brand-yellow-dark);
    --cta-text: #1a1a1a;
    --border: #1e4d35;
    --card-bg: #0d2818;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* =========================================
   Reset & Base
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-en);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}
body.lang-am { font-family: var(--font-am); }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* =========================================
   Typography & Buttons
   ========================================= */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; margin-bottom: 1rem; }
.section-title { font-size: 2.5rem; text-align: center; margin-bottom: 0.5rem; }
.section-subtitle { text-align: center; color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 3rem; }
.btn { display: inline-block; padding: 14px 32px; border-radius: var(--radius); font-weight: 600; font-size: 1rem; transition: all var(--transition); text-align: center; border: none; }
.btn-primary { background: var(--cta); color: var(--cta-text); }
.btn-primary:hover { background: var(--cta-hover); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { border: 2px solid var(--accent); color: var(--accent); background: transparent; }
.btn-outline:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }

/* =========================================
   Header & Navigation
   ========================================= */
.header { position: sticky; top: 0; z-index: 1000; background: var(--bg-primary); border-bottom: 1px solid var(--border); transition: background-color var(--transition), border-color var(--transition); padding: 1rem 0; }
.header-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 1rem; }
.logo img { height: 50px; width: auto; }
.logo-text { display: flex; flex-direction: column; }
.logo-text strong { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); }
.logo-text span { font-size: 0.75rem; color: var(--text-secondary); letter-spacing: 0.5px; }
.nav { display: flex; align-items: center; gap: 2rem; }
.nav-list { display: flex; gap: 2rem; }
.nav-link { font-weight: 500; color: var(--text-secondary); position: relative; padding: 0.5rem 0; }
.nav-link:hover, .nav-link.active { color: var(--accent); }
.nav-link.active::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: var(--accent); }
.nav-controls { display: flex; align-items: center; gap: 1rem; }
.lang-switch { padding: 8px 16px; border-radius: 20px; font-weight: 600; background: var(--cta); color: var(--cta-text); transition: all var(--transition); font-size: 0.9rem; }
.lang-switch:hover { background: var(--cta-hover); }
.theme-toggle { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--border); color: var(--text-primary); transition: all var(--transition); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.theme-toggle:hover { background: var(--bg-secondary); border-color: var(--accent); }
.nav-cta { padding: 10px 24px; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 10px; }
.hamburger span { width: 25px; height: 3px; background: var(--text-primary); transition: var(--transition); }

/* =========================================
   Hero Section
   ========================================= */
.hero { padding: 100px 0; background: var(--bg-secondary); }
.hero-container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-badge { display: inline-block; padding: 8px 20px; border-radius: 20px; background: var(--bg-alt); color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-bottom: 1.5rem; border: 1px solid var(--border); }
.hero-title { font-size: 3.5rem; margin-bottom: 1.5rem; line-height: 1.1; }
.hero-title .highlight { color: var(--brand-yellow); }
.hero-subtitle { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 2rem; max-width: 500px; }
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 3rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--border); }
.stat-item h3 { font-size: 2rem; color: var(--accent); margin-bottom: 0.25rem; }
.stat-item p { font-size: 0.9rem; color: var(--text-secondary); }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-card { background: var(--card-bg); padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow-lg); border: 2px solid var(--brand-yellow); max-width: 400px; width: 100%; }
.hero-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.hero-card-header h3 { font-size: 1.25rem; margin: 0; }
.status-badge { background: var(--brand-green); color: #fff; padding: 4px 12px; border-radius: 12px; font-size: 0.85rem; font-weight: 600; }
.hero-card-amount { font-size: 2.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.hero-card-amount span { font-size: 1rem; color: var(--text-secondary); font-weight: 400; }
.hero-card-info { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1.5rem; }
.progress-bar { background: var(--bg-alt); height: 8px; border-radius: 4px; overflow: hidden; margin-bottom: 1rem; }
.progress-fill { background: var(--brand-yellow); height: 100%; border-radius: 4px; transition: width 1s ease; }
.progress-text { display: flex; justify-content: space-between; font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.5rem; }
.hero-card-btn { width: 100%; padding: 14px; }

/* =========================================
   Sections & Cards
   ========================================= */
.section { padding: 80px 0; }
.bg-alt { background: var(--bg-alt); }
.about-grid, .services-grid, .features-grid, .testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.about-card, .service-card, .feature-card, .testimonial-card { background: var(--card-bg); padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition); border: 1px solid var(--border); }
.service-card:hover, .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.service-icon, .feature-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.service-card h3, .feature-card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }
.service-card p, .feature-card p { color: var(--text-secondary); font-size: 0.95rem; }
.link-arrow { color: var(--accent); font-weight: 600; margin-top: 1rem; display: inline-block; }
.center-btn { text-align: center; margin-top: 3rem; }

/* =========================================
   Process & Portfolio
   ========================================= */
.process-steps { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
.step { background: var(--card-bg); padding: 1rem 2rem; border-radius: var(--radius); border: 1px solid var(--border); display: flex; align-items: center; gap: 0.5rem; font-weight: 600; transition: all var(--transition); }
.step:hover { border-color: var(--accent); transform: translateY(-2px); }
.step-num { background: var(--brand-yellow); color: var(--cta-text); width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; }
.portfolio-filters { display: flex; justify-content: center; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-btn { padding: 10px 24px; border-radius: 20px; border: 2px solid var(--border); background: var(--card-bg); color: var(--text-primary); transition: var(--transition); font-weight: 500; }
.filter-btn.active, .filter-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.portfolio-card { background: var(--card-bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all var(--transition); }
.portfolio-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.portfolio-img { height: 200px; width: 100%; }
.portfolio-info { padding: 1.5rem; }
.portfolio-cat { font-size: 0.85rem; color: var(--accent); font-weight: 600; text-transform: uppercase; }
.portfolio-tech { display: flex; gap: 0.5rem; margin-top: 1rem; flex-wrap: wrap; }
.portfolio-tech span { background: var(--bg-alt); padding: 4px 12px; border-radius: 12px; font-size: 0.8rem; color: var(--text-secondary); border: 1px solid var(--border); }

/* =========================================
   Contact Form
   ========================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.contact-info { background: var(--card-bg); padding: 2rem; border-radius: var(--radius); border: 1px solid var(--border); }
.info-item { margin-bottom: 1.5rem; }
.info-item h3 { font-size: 1.1rem; margin-bottom: 0.25rem; color: var(--accent); }
.info-item p { color: var(--text-secondary); }
.social-links { display: flex; gap: 1rem; margin-top: 2rem; }
.social-links a { width: 44px; height: 44px; border-radius: 50%; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.8rem; border: 1px solid var(--border); transition: all var(--transition); }
.social-links a:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.contact-form { background: var(--card-bg); padding: 2rem; border-radius: var(--radius); border: 1px solid var(--border); display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-weight: 500; font-size: 0.95rem; }
.form-group input, .form-group textarea { padding: 14px; border: 2px solid var(--border); border-radius: var(--radius); background: var(--bg-primary); color: var(--text-primary); font-family: inherit; font-size: 1rem; transition: border-color var(--transition); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-message { margin-top: 1rem; padding: 12px; border-radius: var(--radius); display: none; font-weight: 500; }
.form-message.success { background: #dcfce7; color: #166534; display: block; }
.form-message.error { background: #fee2e2; color: #991b1b; display: block; }

/* =========================================
   Footer & WhatsApp
   ========================================= */
.footer { background: var(--bg-secondary); padding: 60px 0 20px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-logo { height: 50px; margin-bottom: 1rem; }
.footer-col h4 { margin-bottom: 1rem; color: var(--accent); }
.footer-col ul li { margin-bottom: 0.75rem; }
.footer-col ul li a { color: var(--text-secondary); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-col p { color: var(--text-secondary); margin-bottom: 0.5rem; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid var(--border); color: var(--text-secondary); font-size: 0.9rem; }
.whatsapp-float { position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px; background: #25D366; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0,0,0,0.2); z-index: 999; transition: transform var(--transition); }
.whatsapp-float:hover { transform: scale(1.1); }

/* =========================================
   Page Hero (Subpages)
   ========================================= */
.page-hero { padding: 120px 0 60px; background: var(--bg-secondary); text-align: center; }
.page-hero h1 { font-size: 3rem; margin-bottom: 0.5rem; }
.page-hero p { color: var(--text-secondary); font-size: 1.1rem; }
.content-container { max-width: 800px; margin: 0 auto; }
.content-container h2 { margin-top: 2rem; margin-bottom: 1rem; color: var(--accent); }
.content-container p { margin-bottom: 1rem; color: var(--text-secondary); }
.values-list { list-style: disc; padding-left: 1.5rem; margin-top: 1rem; }
.values-list li { margin-bottom: 0.75rem; font-size: 1.1rem; color: var(--text-secondary); }

/* =========================================
   Gallery Section Styles
   ========================================= */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.gallery-item { position: relative; overflow: hidden; border-radius: var(--radius); cursor: pointer; aspect-ratio: 4 / 3; background: var(--bg-alt); border: 1px solid var(--border); transition: transform var(--transition), box-shadow var(--transition); }
.gallery-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; display: block; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10, 31, 20, 0.9) 0%, rgba(10, 31, 20, 0.4) 50%, transparent 100%); opacity: 0; transition: opacity 0.3s ease; display: flex; flex-direction: column; justify-content: flex-end; padding: 1.5rem; color: #ffffff; }
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay h3 { font-size: 1.25rem; margin-bottom: 0.25rem; color: var(--brand-yellow); transform: translateY(10px); transition: transform 0.3s ease; }
.gallery-overlay p { font-size: 0.9rem; color: #e2e8f0; transform: translateY(10px); transition: transform 0.3s ease 0.1s; }
.gallery-item:hover .gallery-overlay h3, .gallery-item:hover .gallery-overlay p { transform: translateY(0); }

/* =========================================
   Lightbox (Full Screen Image Viewer)
   ========================================= */
.lightbox { display: none; position: fixed; z-index: 9999; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.9); backdrop-filter: blur(5px); justify-content: center; align-items: center; flex-direction: column; padding: 20px; box-sizing: border-box; }
.lightbox.active { display: flex; animation: fadeIn 0.3s ease; }
.lightbox-content { max-width: 90vw; max-height: 80vh; border-radius: var(--radius); box-shadow: 0 10px 30px rgba(0,0,0,0.5); object-fit: contain; }
.lightbox-caption { color: #ffffff; margin-top: 1rem; font-size: 1.1rem; text-align: center; max-width: 80%; }
.lightbox-close { position: absolute; top: 20px; right: 30px; color: #ffffff; font-size: 40px; font-weight: bold; cursor: pointer; transition: color 0.3s; background: none; border: none; line-height: 1; }
.lightbox-close:hover { color: var(--brand-yellow); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 992px) { .hero-container, .contact-grid { grid-template-columns: 1fr; } .hero-visual { margin-top: 3rem; } .footer-grid { grid-template-columns: 1fr 1fr; } .hero-stats { gap: 2rem; } }
@media (max-width: 768px) { .hamburger { display: flex; } .nav { position: fixed; top: 80px; left: 0; width: 100%; background: var(--bg-primary); flex-direction: column; padding: 2rem; gap: 1.5rem; border-bottom: 1px solid var(--border); transform: translateY(-150%); transition: transform var(--transition); } .nav.active { transform: translateY(0); } .nav-list { flex-direction: column; width: 100%; text-align: center; } .nav-controls { flex-direction: column; width: 100%; } .nav-cta { width: 100%; } .hero-title { font-size: 2.5rem; } .section-title { font-size: 2rem; } .footer-grid { grid-template-columns: 1fr; } .hero-stats { flex-direction: column; gap: 1.5rem; } .logo-text { display: none; } .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); } .gallery-overlay { opacity: 1; background: linear-gradient(to top, rgba(10, 31, 20, 0.85) 0%, transparent 60%); } .gallery-overlay h3, .gallery-overlay p { transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }