:root {
    --bg-0: #000;
    --bg-1: #0b1220;
    --surface: rgba(255, 255, 255, 0.06);
    --surface-hover: rgba(255, 255, 255, 0.1);
    --border: rgba(255, 255, 255, 0.12);
    --text: #fff;
    --text-muted: rgba(255, 255, 255, 0.75);
    --text-dim: rgba(255, 255, 255, 0.55);
    --accent-cyan: #00c6ff;
    --accent-purple: #7c3aed;
    --accent-warm: #f59e0b;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --max-w: 1120px;
    --max-prose: 68ch;
    --nav-h: 64px;
    --safe-b: env(safe-area-inset-bottom, 0px);
    --safe-t: env(safe-area-inset-top, 0px);
    --safe-l: env(safe-area-inset-left, 0px);
    --safe-r: env(safe-area-inset-right, 0px);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-h) + 12px);
    -webkit-text-size-adjust: 100%;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text);
    background: radial-gradient(ellipse at top, var(--bg-1), var(--bg-0));
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

/* ambient glow — subtle on mobile, stronger on desktop */
.glow-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: -1;
}

.glow {
    position: absolute;
    width: 360px;
    height: 360px;
    filter: blur(90px);
    opacity: 0.35;
    will-change: transform;
}

.glow-a { background: var(--accent-cyan); top: -120px; left: -120px; }
.glow-b { background: var(--accent-purple); bottom: -120px; right: -120px; }

/* FOCUS */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 3px;
    border-radius: 6px;
}

/* NAV — mobile-first */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    padding-top: calc(10px + var(--safe-t));
    padding-left: calc(16px + var(--safe-l));
    padding-right: calc(16px + var(--safe-r));
    background: rgba(7, 10, 20, 0.72);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid var(--border);
    min-height: var(--nav-h);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text);
    line-height: 1;
    flex-shrink: 0;
}

.brand-logo {
    height: 40px;
    width: auto;
    display: block;
    object-fit: contain;
}

.brand-text {
    display: none;
    font-weight: 800;
    letter-spacing: -0.01em;
    font-size: 17px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    margin-right: -8px;
}

.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s;
    padding: 10px 10px;
    white-space: nowrap;
    border-radius: 8px;
}

@media (hover: hover) {
    .nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
}

/* HERO — mobile-first */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px 48px;
}

.hero-box {
    width: 100%;
    max-width: 760px;
    padding: 28px 22px 30px;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
    text-align: center;
}

/* Hero media */
.hero-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 0 auto 22px;
    border: 1px solid var(--border);
    background:
        linear-gradient(135deg, rgba(0,198,255,0.18), rgba(124,58,237,0.18)),
        radial-gradient(circle at 30% 30%, rgba(255,255,255,0.08), transparent 60%),
        #0d1526;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-image:not([src]),
.hero-image[src=""] {
    visibility: hidden;
}

.hero h1 {
    font-size: clamp(30px, 8vw, 56px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.025em;
    margin-bottom: 14px;
}

.hero-lead {
    color: var(--text-muted);
    font-size: 16px;
    margin: 0 auto 22px;
    max-width: 48ch;
    line-height: 1.55;
}

.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 22px;
}

.hero-ctas .btn { width: 100%; }

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 20px;
    min-height: 46px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    color: var(--text);
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    box-shadow: 0 6px 18px rgba(0, 198, 255, 0.3);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border);
}

/* SECTION */
.section {
    padding: 56px 18px;
    max-width: var(--max-w);
    margin: 0 auto;
}

/* GRID */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

/* PORTFOLIO */
.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    border: 1px solid var(--border);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 32px 20px;
    color: var(--text-dim);
    font-size: 12.5px;
    border-top: 1px solid var(--border);
}

/* WHATSAPP */
.whatsapp {
    position: fixed;
    bottom: 16px;
    right: 16px;
    width: 52px;
    height: 52px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* FIX DESKTOP LAYOUT */
@media (min-width: 768px) {

    .grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }

}

@media (min-width: 1024px) {

    .grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }

}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact-wrap {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
}

@media (min-width: 1024px) {
    .grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.icon {
    width: 28px;
    height: 28px;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}

.section {
    position: relative;
    z-index: 2;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.portfolio-item {
    background: var(--surface);
    border: 1px solid var(--border);
}

html {
    scroll-behavior: smooth;
}

section {
    scroll-margin-top: 80px;
}

.section {
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
}

.icon {
    width: 28px;
    height: 28px;
    color: var(--accent-cyan);
    margin-bottom: 8px;
    display: block;
}

.glow-bg {
    z-index: 0;
}

.section {
    position: relative;
    z-index: 2;
}

.nav {
    z-index: 1000;
}