:root {
    --bg: #0a0e17;
    --panel: #10151f;
    --panel-alt: #0d1220;
    --text: #f0f4f8;
    --muted: #a0aac0;
    --primary: #276bb4;
    --primary-dark: #0099bb;
    --secondary: #35e1ff;
    --accent: #ff6b9d;
    --maxw: 1100px;
    --radius: 16px;
    --radius-sm: 12px;
    --shadow: 0 8px 32px rgba(0, 217, 255, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }
html, body { height: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--text);
    background: radial-gradient(#1a2a45, #060810 70%);
    line-height: 1.6;
}

img { max-width: 100%; display: block; border-radius: var(--radius-sm); }

.container { width: min(100% - 2rem, var(--maxw)); margin-inline: auto; }

/* Header */
.site-header {
    position: fixed; width:100%; top: 0; z-index: 10;
    backdrop-filter: saturate(1.3) blur(12px);
    background: color-mix(in srgb, #0a0e17 75%, transparent);
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

/* Hide text on mobile and tablets */
@media screen and (max-width: 768px){
    .desktop-only {
        font-size: 0;
        color: transparent;
        text-indent: -9999px;
        overflow: hidden;
    }
}
@media screen and (min-width: 768px){
    .desktop-only {
        color: var(--text);
        text-decoration: none;
        font-weight: 800;
        letter-spacing: 0.8px;
        font-size: 1.1rem;
    }
}

.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; }
@media screen and (max-width: 410px){
    .dektop-section { display:none; }
}
.nav { display: flex; gap: 1.5rem; align-items: center; }
.nav a:not(.btn.btn-primary) { color: var(--muted); text-decoration: none; padding: 0.5rem 0.8rem; border-radius: 8px; transition: all 0.3s ease; }
.nav a:hover { color: var(--primary); background: rgba(0, 217, 255, 0.1); }

/* Buttons */
.btn { display: inline-block; padding: 0.75rem 1.4rem; border-radius: 10px; text-decoration: none; font-weight: 600; transition: all 0.3s ease; border: none; cursor: pointer; }
.btn-primary { color: #05121a; background: linear-gradient(135deg, var(--primary), #00b8e6); box-shadow: 0 8px 24px rgba(0, 217, 255, 0.25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0, 217, 255, 0.35); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { color: var(--text); background: rgba(53, 208, 255, 0.15); border: 1.5px solid var(--secondary); }
.btn-secondary:hover { background: rgba(53, 208, 255, 0.25); transform: translateY(-2px); }

/* Hero */
.hero { position: relative; isolation: isolate; padding: 4.5rem 0; background: rgba(6, 8, 16, .5); }
.hero-inner { padding: 6rem 0 7rem; text-align: center; }
.hero-inner img { margin-bottom: 1rem; margin-left: auto; margin-right: auto; width: 40%; height: auto; }
.hero-inner-alt { text-align: center; }
.hero h1 { margin: 0 0 1rem; font-size: clamp(2.2rem, 4vw + 1rem, 3.5rem); font-weight: 800; background: linear-gradient(135deg, var(--text), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.lead { color: var(--muted); max-width: 60ch; margin: 0 auto 1.5rem; font-size: 1.1rem; }
.lead-alt { color: var(--muted); max-width: 120ch; margin: 0 auto 1.5rem; font-size: 1.2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-bg {
    position: absolute; inset: 0; z-index: -1; opacity: 0.15;
    background: center/cover no-repeat url('assets/images/walkway_with_nice_view.jpg');
    mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
}

/* Sections */
.section { padding: 4rem 0; background: transparent; scroll-margin: 4rem;}
.section-alt { background: linear-gradient(180deg, rgba(10, 20, 35, 0.5), rgba(8, 12, 24, 0.5)); border-top: 1px solid rgba(0, 217, 255, 0.1); border-bottom: 1px solid rgba(0, 217, 255, 0.1); }
.section h2 { font-size: clamp(1.8rem, 2.5vw + 0.8rem, 2.4rem); margin: 0 0 1.5rem; font-weight: 700; color: var(--text); }
.muted { color: var(--muted); }

/* Features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.feature {
    background: linear-gradient(135deg, rgba(16, 21, 31, 0.8), rgba(13, 18, 32, 0.8));
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid rgba(0, 217, 255, 0.15);
    transition: all 0.4s ease;
    box-shadow: var(--shadow);
}
.feature:hover {
    border-color: rgba(0, 217, 255, 0.4);
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 217, 255, 0.15);
}
.feature img { margin-bottom: 1rem; }
.feature h3 { margin: 0.5rem 0 0.6rem; font-size: 1.2rem; font-weight: 700; }
.feature p { color: var(--muted); margin: 0; }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.services-grid figure {
    margin: 0;
    background: linear-gradient(135deg, rgba(16, 22, 38, 0.9), rgba(13, 18, 32, 0.9));
    border: 1px solid rgba(0, 217, 255, 0.15);
    padding: 0.8rem;
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow: var(--shadow);
}
.services-grid figure:hover {
    border-color: rgba(0, 217, 255, 0.4);
    transform: scale(1.04);
    box-shadow: 0 12px 36px rgba(0, 217, 255, 0.2);
}
.services-grid figure img { transition: transform 0.4s ease; }
.services-grid figure:hover img { transform: scale(1.02); }
.services-grid figcaption { color: var(--muted); font-size: 0.95rem; margin-top: 0.6rem; font-weight: 500; }
.lucide { display: inline-flex; vertical-align: middle; }

/* Contact */
.contact { display: flex; flex-direction: column; } 
.contact-info {
    display: flex;
    flex-direction: column;
}
.contact-info h3 { color: var(--primary); margin-bottom: 1rem; }
.contact-info ul { margin: 0; padding-left: 1.5rem; }
.contact-info li { margin-bottom: 0.8rem; color: var(--muted); }
.contact-info a { color: var(--primary); text-decoration: none; transition: all 0.3s ease; }
.contact-info a:hover { color: var(--secondary); text-decoration: underline; }

.contact-form {
    background: linear-gradient(135deg, rgba(16, 22, 38, 0.9), rgba(13, 18, 32, 0.9));
    border: 1px solid rgba(0, 217, 255, 0.15);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.contact-form label { display: flex; flex-direction: column; font-weight: 600; color: var(--text); }
.contact-form span { font-size: 0.95rem; }
.contact-form input, .contact-form textarea {
    background: rgba(10, 18, 32, 0.8);
    border: 1.5px solid rgba(0, 217, 255, 0.15);
    color: var(--text);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    font: inherit;
    transition: all 0.3s ease;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 16px rgba(0, 217, 255, 0.3);
    background: rgba(10, 18, 32, 1);
}
.contact-grid { display: flex; flex-direction: row; flex-wrap: wrap; gap: 1em; }

.contact-row { display: flex; flex-direction: column; flex-grow: 5; }

.contact-submit-btn { display: flex; justify-content: end; margin-top: 1rem; }

.message-box { display: flex; flex-direction: column; flex-grow: 7; }
.message-box textarea { height: 100%; resize: none; }

/* Footer */
.site-footer { padding: 2rem 0; background: rgba(8, 12, 24, 0.5); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.to-top { color: var(--muted); text-decoration: none; padding: 0.5rem 0.8rem; border-radius: 8px; border: 1px solid rgba(0, 217, 255, 0.2); transition: all 0.3s ease; }
.to-top:hover { color: var(--primary); border-color: var(--primary); }

/* Contact form status */
.contact-status { margin-top: 0.75rem; font-size: 0.9rem; text-align: center; }
.contact-status--success { color: #4ade80; }
.contact-status--error { color: #f87171; }

/* Utilities */
@media (max-width: 960px) {
    .features { grid-template-columns: 1fr 1fr; }
    .services-grid { grid-template-columns: 1fr 1fr; }
    .contact { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .features { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .hero-inner { padding: 2.5rem 0 5rem; }
    .section { padding: 3rem 0; }
}