/* 
   TRUE AXIAL GRAVITY v13.1 (ZERO DEVIATION)
   Absolute Horizontal Centering • Symmetrical Reliability
*/

:root {
    --bg-main: #020205;
    --bg-surface: #0a0a0f;
    --accent-vibrant: #9f40ff;
    --accent-glow: rgba(159, 64, 255, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    --glass-border: rgba(255, 255, 255, 0.08);
    --ease-in-out: cubic-bezier(0.16, 1, 0.3, 1);
    
    --font-head: 'Outfit', sans-serif;
    --font-sans: 'Inter', sans-serif;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg-main: #fcfcfd;
        --bg-surface: #ffffff;
        --accent-vibrant: #6366f1;
        --text-primary: #0f172a;
        --text-secondary: #475569;
        --text-muted: #94a3b8;
    }
}

/* --- SECURITY & RESET --- */
* { 
    margin: 0; padding: 0; box-sizing: border-box; 
    -webkit-font-smoothing: antialiased;
    user-select: none !important; 
    -webkit-user-select: none !important;
    text-align: center !important; 
}

html { scroll-behavior: smooth; overflow-x: hidden; background: var(--bg-main); width: 100%; }

body { 
    background-color: var(--bg-main); 
    color: var(--text-primary); 
    font-family: var(--font-sans); 
    font-weight: 500; 
    line-height: 1.5; 
    display: flex; flex-direction: column; align-items: center; 
    width: 100%; min-width: 320px;
}

/* --- PROGRESS BAR --- */
.progress-bar { position: fixed; top: 0; left: 0; height: 2.5px; background: var(--accent-vibrant); width: 0%; z-index: 10002; transition: width 0.3s; }

/* --- TRUE CENTERED NAVBAR --- */
.navbar { 
    position: fixed; top: 1.5rem; left: 50%; transform: translateX(-50%); 
    width: 90%; max-width: 650px; padding: 1rem 2.5rem; 
    z-index: 1000; display: flex; justify-content: space-between; align-items: center; 
    background: rgba(10,10,15,0.7); backdrop-filter: blur(30px); 
    border: 1px solid var(--glass-border); border-radius: 60px;
    transition: 0.5s var(--ease-in-out); 
}
.navbar.scrolled { top: 0.6rem; max-width: 550px; background: rgba(5,5,10,0.95); box-shadow: 0 15px 50px rgba(0,0,0,0.8); }

.logo { font-family: var(--font-head); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.3rem; text-transform: uppercase; }
.nav-links { display: flex; list-style: none; gap: 2.5rem; align-items: center; margin: 0 auto; }
.nav-links a { 
    color: var(--text-secondary); text-decoration: none; 
    font-size: 0.65rem; font-weight: 700; text-transform: uppercase; 
    letter-spacing: 0.1rem; transition: color 0.3s ease;
}
.nav-links a:hover { color: var(--accent-vibrant); }

/* --- SECTIONS (AXIAL SYMMETRY) --- */
main { width: 100%; display: flex; flex-direction: column; align-items: center; }
.section { 
    width: 100%; max-width: 750px; padding: 10rem 1.5rem; 
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    position: relative;
}

/* --- HERO (RESPONSIVE ONE-LINE) --- */
.hero { min-height: 95vh; }
.badge { 
    font-size: 0.65rem; color: var(--accent-vibrant); 
    letter-spacing: 0.6rem; text-transform: uppercase; font-weight: 800; 
    margin-bottom: 3.5rem; display: inline-block; padding: 0.5rem 2rem;
    border: 1px solid var(--accent-vibrant); border-radius: 50px; background: rgba(159, 64, 255, 0.05);
}
.title { 
    font-family: var(--font-head); 
    font-size: clamp(2rem, 10vw, 5.2rem); 
    font-weight: 800; line-height: 1; 
    letter-spacing: -0.04em; margin-bottom: 2rem; 
    width: max-content; max-width: 100%; margin-left: auto; margin-right: auto;
}
.subtitle { font-size: 1.5rem; color: var(--text-secondary); font-weight: 500; margin-bottom: 5.5rem; max-width: 550px; line-height: 1.5; margin-left: auto; margin-right: auto; }

/* --- MODULAR EXPANSION CARDS --- */
.grid { display: flex; flex-direction: column; align-items: center; gap: 3rem; width: 100%; margin-top: 5.5rem; }
.card { 
    background: var(--bg-surface); border: 1px solid var(--glass-border); padding: 4rem 2.5rem; 
    border-radius: 24px; transition: 0.8s var(--ease-in-out); width: 100%; max-width: 600px;
    cursor: pointer; position: relative; margin: 0 auto;
}
.card:hover { border-color: var(--accent-vibrant); transform: translateY(-5px); box-shadow: 0 40px 80px rgba(0,0,0,0.6); }

/* CONTENT EXPANSION */
.expand-content { max-height: 0; opacity: 0; overflow: hidden; transition: 0.8s var(--ease-in-out); }
.card.expanded .expand-content { max-height: 1000px; opacity: 1; padding-top: 3rem; }

.card h3 { font-size: 0.9rem; font-weight: 800; letter-spacing: 0.4rem; color: var(--accent-vibrant); text-transform: uppercase; margin-bottom: 1.5rem; opacity: 0.8; display: flex; align-items: center; justify-content: center; gap: 1rem; }
.card h3::after { content: '→'; font-size: 1.2rem; transition: 0.5s var(--ease-in-out); opacity: 0.5; }
.card.expanded h3::after { transform: rotate(90deg); opacity: 1; }

.card p.main-info { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); line-height: 1.2; letter-spacing: -0.02em; }
.card .extra-info { font-size: 1.15rem; color: var(--text-secondary); line-height: 1.8; border-top: 1px solid var(--glass-border); padding-top: 2rem; }

/* --- BUTTONS --- */
.btn-group { display: flex; gap: 2.5rem; justify-content: center; width: 100%; flex-wrap: wrap; margin-left: auto; margin-right: auto; }
.btn { 
    display: inline-block; padding: 1.4rem 4rem; text-decoration: none; font-size: 0.9rem; 
    font-weight: 800; text-transform: uppercase; letter-spacing: 0.25rem; border-radius: 60px; 
    transition: 0.4s var(--ease-in-out); 
}
.btn-primary { background: var(--text-primary); color: var(--bg-main); box-shadow: 0 15px 40px rgba(0,0,0,0.4); }
.btn-primary:hover { background: var(--accent-vibrant); color: #fff; transform: translateY(-5px); box-shadow: 0 20px 60px var(--accent-glow); }
.btn-outline { border: 2.3px solid var(--glass-border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent-vibrant); color: var(--accent-vibrant); transform: translateY(-5px); }

/* --- REVEAL --- */
.reveal { opacity: 0; transform: translateY(40px); transition: 1.5s var(--ease-in-out); }
.reveal.active { opacity: 1; transform: translateY(0); }

/* --- LOAD --- */
.load-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--bg-main); z-index: 10001; display: flex; justify-content: center; align-items: center; }
.load-overlay.hidden { opacity: 0; visibility: hidden; transition: 1.2s var(--ease-in-out); }

.loader-content {
    font-family: var(--font-head); font-size: 1.1rem; font-weight: 800; 
    letter-spacing: 1.5rem; color: var(--accent-vibrant); 
    text-transform: uppercase; animation: pulse 2s infinite;
}

.contact-title {
    font-family: var(--font-head); font-size: 3rem; font-weight: 800; 
    margin-bottom: 1.5rem; letter-spacing: -0.05em;
}

@keyframes pulse {
    0% { opacity: 0.4; }
    50% { opacity: 1; transform: scale(1.02); }
    100% { opacity: 0.4; }
}

footer { padding: 12rem 2rem; width: 100%; border-top: 1px solid var(--glass-border); opacity: 0.3; }

@media (max-width: 900px) {
    .navbar { width: 95%; max-width: 450px; padding: 0.8rem 1.5rem; justify-content: center; }
    .nav-links { display: none; }
    .navbar .btn { margin-left: auto; margin-right: auto; }
    .title { font-size: 3.2rem; width: auto; white-space: normal; }
    .btn { width: 100% !important; padding: 1.2rem 2rem; }
    .contact-title { font-size: 2.2rem; }
}