:root {
    --dark: #1a1a2e;
    --navy: #16213e;
    --accent: #e94560;
    --accent-dark: #c23152;
    --light: #f5f5f5;
    --white: #ffffff;
    --gray: #8892a0;
    --steel: #a4b0be;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: inherit;
    --logo-height: 45px;
    --navbar-bg: var(--dark);
    --btn-radius: 5px;
    --hero-overlay: 0.9;
    --hero-height: 100vh;
    --section-padding: 80px;
    --nav-link-color: #a4b0be;
    --nav-link-hover: var(--accent);
    --nav-padding: 15px;
    --nav-link-gap: 30px;
    --nav-link-case: uppercase;
    --footer-bg: var(--dark);
}

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

body {
    font-family: var(--font-body);
    color: #333;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ========== NAVBAR ========== */
.navbar {
    background: var(--navbar-bg, var(--dark));
    padding: var(--nav-padding) 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-pos-static .navbar { position: relative; }
.nav-has-shadow .navbar { box-shadow: 0 2px 20px rgba(0,0,0,0.3); }

.nav-container { display: flex; justify-content: space-between; align-items: center; }

.logo {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: 2px;
}

.logo img { max-height: var(--logo-height, 45px); }
.logo span { color: var(--accent); }

.nav-links {
    list-style: none;
    display: flex;
    gap: var(--nav-link-gap);
    align-items: center;
}

.nav-links a {
    color: var(--nav-link-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    text-transform: var(--nav-link-case);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

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

/* Nav Style: Pills */
.nav-style-pills .nav-links a {
    padding: 6px 16px;
    border-radius: 20px;
}
.nav-style-pills .nav-links a:hover,
.nav-style-pills .nav-links a.active {
    background: rgba(255,255,255,0.12);
    color: var(--nav-link-hover);
}

/* Nav Style: Underline */
.nav-style-underline .nav-links a {
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}
.nav-style-underline .nav-links a:hover,
.nav-style-underline .nav-links a.active {
    border-bottom-color: var(--nav-link-hover);
    color: var(--nav-link-hover);
}

/* Nav Style: Bordered */
.nav-style-bordered .nav-links a {
    padding: 5px 14px;
    border: 1px solid transparent;
    border-radius: var(--btn-radius);
}
.nav-style-bordered .nav-links a:hover,
.nav-style-bordered .nav-links a.active {
    border-color: var(--nav-link-hover);
    color: var(--nav-link-hover);
}

.nav-admin-link { color: var(--accent) !important; }
.nav-login-link i, .nav-logout-link i, .nav-admin-link i { margin-right: 4px; }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ========== HERO ========== */
.hero {
    background: linear-gradient(135deg, rgba(26,26,46,var(--hero-overlay)), rgba(22,33,62,calc(var(--hero-overlay) - 0.05))), url('/public/images/hero-bg.jpg') center/cover;
    min-height: var(--hero-height, 100vh);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding-top: 80px;
}

.nav-pos-static .hero { padding-top: 0; }

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span { color: var(--accent); }

.hero p {
    font-size: 1.3rem;
    color: var(--steel);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 14px 40px;
    border-radius: var(--btn-radius, 5px);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 5px 20px rgba(233,69,96,0.4); }
.btn-outline { border: 2px solid var(--accent); color: var(--accent); background: transparent; }
.btn-outline:hover { background: var(--accent); color: var(--white); }

/* ========== SECTIONS ========== */
.section { padding: var(--section-padding, 80px) 0; }
.section-dark { background: var(--dark); color: var(--white); }
.section-navy { background: var(--navy); color: var(--white); }
.section-light { background: var(--light); }

.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; margin-bottom: 15px; }
.section-header p { color: var(--gray); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.section-header .accent-line { width: 60px; height: 4px; background: var(--accent); margin: 15px auto; }

/* ========== SERVICE CARDS ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

/* Card style variants */
.card-style-bordered .service-card,
.card-style-bordered .testimonial {
    box-shadow: none;
    border: 1px solid #e0e0e0;
}
.card-style-flat .service-card,
.card-style-flat .testimonial {
    box-shadow: none;
    border: none;
    background: #f9f9f9;
}

.service-card:hover { transform: translateY(-10px); box-shadow: 0 15px 40px rgba(0,0,0,0.15); }
.card-style-bordered .service-card:hover { box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
.card-style-flat .service-card:hover { box-shadow: 0 5px 15px rgba(0,0,0,0.08); }

.service-card .icon { font-size: 3rem; color: var(--accent); margin-bottom: 20px; }
.service-card h3 { font-size: 1.3rem; margin-bottom: 15px; color: var(--dark); }
.service-card p { color: var(--gray); }

/* ========== GALLERY ========== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.gallery-item:hover img { transform: scale(1.1); }

.gallery-item .overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 20px;
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.3s;
}
.gallery-item:hover .overlay { transform: translateY(0); }

/* ========== LIGHTBOX ========== */
.lightbox {
    display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.95); z-index: 2000; justify-content: center; align-items: center;
}
.lightbox.active { display: flex; }
.lightbox img { max-width: 90%; max-height: 90%; border-radius: var(--btn-radius, 5px); }
.lightbox-close { position: absolute; top: 20px; right: 30px; color: var(--white); font-size: 2rem; cursor: pointer; background: none; border: none; }

/* ========== CONTACT ========== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; color: var(--dark); }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 12px 15px; border: 2px solid #ddd;
    border-radius: var(--btn-radius, 5px); font-size: 1rem;
    transition: border-color 0.3s; font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 120px; }

.contact-info-card { background: var(--navy); color: var(--white); padding: 40px; border-radius: 10px; }
.contact-info-card h3 { margin-bottom: 30px; }
.contact-info-item { display: flex; align-items: center; gap: 15px; margin-bottom: 25px; }
.contact-info-item i { font-size: 1.5rem; color: var(--accent); width: 30px; }

/* ========== PAGE HEADERS ========== */
.page-header {
    background: linear-gradient(135deg, var(--dark), var(--navy));
    padding: 140px 0 60px; text-align: center; color: var(--white);
}
.nav-pos-static .page-header { padding-top: 80px; }
.page-header h1 { font-size: 2.8rem; margin-bottom: 10px; }
.page-header p { color: var(--steel); font-size: 1.1rem; }

/* ========== PAYMENT ========== */
.pay-container {
    max-width: 600px; margin: 120px auto 40px; padding: 40px;
    background: var(--white); border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.nav-pos-static .pay-container { margin-top: 40px; }
.invoice-summary { margin: 20px 0; }
.invoice-summary table { width: 100%; border-collapse: collapse; }
.invoice-summary th, .invoice-summary td { padding: 10px; text-align: left; border-bottom: 1px solid #eee; }
.invoice-summary .total-row { font-size: 1.3rem; color: var(--accent); font-weight: 700; }

/* ========== TESTIMONIALS ========== */
.testimonial {
    background: var(--white); padding: 30px; border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08); text-align: center;
}
.testimonial .stars { color: #f4c430; margin-bottom: 10px; font-size: 1.2rem; }
.testimonial p { font-style: italic; color: var(--gray); margin-bottom: 15px; }
.testimonial .author { font-weight: 700; color: var(--dark); }

/* ========== FOOTER ========== */
.footer { background: var(--footer-bg, var(--dark)); color: var(--steel); padding: 60px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer h3, .footer h4 { color: var(--white); margin-bottom: 15px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { color: var(--steel); text-decoration: none; transition: color 0.3s; }
.footer ul a:hover { color: var(--accent); }
.footer p { margin-bottom: 8px; }
.footer i { color: var(--accent); margin-right: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; }

/* ========== ANIMATIONS ========== */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.6s, transform 0.6s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ========== ABOUT ========== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 2rem; margin-bottom: 20px; color: var(--dark); }
.about-text p { color: var(--gray); margin-bottom: 15px; }
.about-image { border-radius: 10px; overflow: hidden; background: var(--navy); min-height: 300px; display: flex; align-items: center; justify-content: center; }
.about-image i { font-size: 5rem; color: var(--accent); }
.capabilities-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.capability { text-align: center; padding: 30px; }
.capability i { font-size: 2.5rem; color: var(--accent); margin-bottom: 15px; }
.capability h3 { margin-bottom: 10px; }

/* ========== ALERTS ========== */
.alert { padding: 15px 20px; border-radius: var(--btn-radius, 5px); margin-bottom: 20px; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: var(--navbar-bg, var(--dark)); flex-direction: column; padding: 20px; gap: 15px;
    }
    .nav-links.active { display: flex; }
    .hero h1 { font-size: 2.2rem; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
}