/* =====================================================================
   Javier Arias — Portafolio · Rediseño "Dark Futurista + Glow"
   ===================================================================== */

/* ===== Design Tokens ===== */
:root {
    /* Accent palette */
    --c-blue: #3b82f6;
    --c-cyan: #22d3ee;
    --c-violet: #8b5cf6;
    --c-teal: #10b981;
    --grad: linear-gradient(135deg, #3b82f6 0%, #22d3ee 50%, #8b5cf6 100%);
    --grad-text: linear-gradient(110deg, #60a5fa 0%, #22d3ee 45%, #a78bfa 100%);

    /* Dark theme (default) */
    --bg: #060914;
    --bg-2: #080c1a;
    --surface: rgba(255, 255, 255, 0.035);
    --surface-2: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #eef2ff;
    --text-soft: #aeb8d4;
    --text-dim: #6b7694;
    --nav-bg: rgba(8, 12, 26, 0.55);
    --glow: rgba(59, 130, 246, 0.35);
    --shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.7);

    /* Type */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-head: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Layout */
    --container: 1200px;
    --radius: 18px;
    --radius-sm: 12px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="light"] {
    --bg: #f5f7fc;
    --bg-2: #eef1f9;
    --surface: rgba(15, 23, 42, 0.025);
    --surface-2: rgba(15, 23, 42, 0.05);
    --border: rgba(15, 23, 42, 0.10);
    --border-strong: rgba(15, 23, 42, 0.18);
    --text: #0b1020;
    --text-soft: #45506b;
    --text-dim: #7c87a3;
    --nav-bg: rgba(245, 247, 252, 0.7);
    --glow: rgba(59, 130, 246, 0.25);
    --shadow: 0 24px 60px -28px rgba(30, 50, 110, 0.35);
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background 0.5s var(--ease), color 0.5s var(--ease);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.6rem; }
section { position: relative; }

::selection { background: var(--c-cyan); color: #03101a; }

/* Ambient background glow following the whole page */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(60vw 60vw at 12% -5%, rgba(59,130,246,0.10), transparent 60%),
        radial-gradient(55vw 55vw at 95% 8%, rgba(139,92,246,0.10), transparent 60%),
        radial-gradient(70vw 50vw at 50% 110%, rgba(34,211,238,0.07), transparent 60%);
    z-index: -2;
    pointer-events: none;
}

/* Grain overlay */
.grain {
    position: fixed; inset: 0; z-index: 9990; pointer-events: none;
    background-image: url("../images/generated/grain.png");
    opacity: 0.5; mix-blend-mode: overlay;
}
[data-theme="light"] .grain { opacity: 0.25; }

/* ===== Scroll progress ===== */
#scroll-progress {
    position: fixed; top: 0; left: 0; height: 3px; width: 0%;
    background: var(--grad); z-index: 10000;
    box-shadow: 0 0 14px var(--glow);
}

/* ===== Custom cursor ===== */
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; border-radius: 50%; pointer-events: none; z-index: 9999; opacity: 0; transition: opacity .3s; mix-blend-mode: difference; }
.cursor-dot { width: 7px; height: 7px; background: #fff; transform: translate(-50%, -50%); }
.cursor-ring { width: 38px; height: 38px; border: 1.5px solid rgba(255,255,255,0.6); transform: translate(-50%, -50%); transition: width .25s var(--ease), height .25s var(--ease), opacity .3s, background .25s; }
.cursor-ring.hover { width: 64px; height: 64px; background: rgba(255,255,255,0.08); border-color: transparent; }
@media (pointer: fine) { .cursor-dot, .cursor-ring { opacity: 1; } body { cursor: none; } a, button, input, textarea, .thumb { cursor: none; } }

/* ===== Navigation ===== */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    padding: 1.1rem 0;
    transition: padding .4s var(--ease), background .4s var(--ease), border-color .4s var(--ease);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    padding: 0.6rem 0;
    background: var(--nav-bg);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    border-bottom: 1px solid var(--border);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: .6rem; font-family: var(--font-head); font-weight: 700; }
.logo-mark {
    display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px;
    background: var(--grad); color: #04101e; font-weight: 700; letter-spacing: -1px;
    box-shadow: 0 6px 22px -6px var(--glow);
}
.logo-text { font-size: 1.05rem; letter-spacing: -.3px; }
.nav-menu { display: flex; align-items: center; gap: 1.9rem; }
.nav-menu a { font-size: .92rem; color: var(--text-soft); font-weight: 500; position: relative; transition: color .25s; }
.nav-menu a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--grad); border-radius: 2px; transition: width .3s var(--ease); }
.nav-menu a:hover, .nav-menu a.active-link { color: var(--text); }
.nav-menu a:hover::after, .nav-menu a.active-link::after { width: 100%; }
.lang-switch { display: flex; align-items: center; gap: .35rem; }
.lang-sep { color: var(--text-dim); }
.lang-btn { font-size: .82rem; font-weight: 600; color: var(--text-dim); padding: .15rem .15rem; transition: color .25s; }
.lang-btn.active { color: var(--c-cyan); }
.theme-btn { font-size: 1.05rem; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); transition: transform .25s, border-color .25s; }
.theme-btn:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--border); }
.hamburger, .hamburger::before, .hamburger::after { content: ""; display: block; width: 20px; height: 2px; background: var(--text); margin: 0 auto; border-radius: 2px; transition: .3s var(--ease); position: relative; }
.hamburger::before { position: absolute; top: -6px; } .hamburger::after { position: absolute; top: 6px; }
.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active .hamburger::after { top: 0; transform: rotate(-45deg); }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .95rem 1.8rem; border-radius: 100px; font-weight: 600; font-size: .95rem; letter-spacing: .2px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s; position: relative; will-change: transform; }
.btn-primary { background: var(--grad); color: #03101e; box-shadow: 0 12px 36px -12px var(--glow); }
.btn-primary:hover { box-shadow: 0 18px 44px -10px var(--glow); }
.btn-ghost { border: 1px solid var(--border-strong); color: var(--text); background: var(--surface); }
.btn-ghost:hover { background: var(--surface-2); }

/* ===== HERO ===== */
.hero { min-height: 100vh; display: flex; align-items: center; padding: 9rem 0 7.5rem; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-mesh {
    position: absolute; inset: -10%;
    background: url("../images/generated/hero-mesh.jpg") center/cover no-repeat;
    opacity: .55; filter: saturate(1.1);
    animation: meshDrift 24s ease-in-out infinite alternate;
}
[data-theme="light"] .hero-mesh { opacity: .35; }
@keyframes meshDrift { from { transform: scale(1.05) translate(0,0); } to { transform: scale(1.15) translate(-2%, -2%); } }
.hero-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
    opacity: .5;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.hero-bg::after { /* dark vignette so text reads */
    content: ""; position: absolute; inset: 0; z-index: 2;
    background: radial-gradient(ellipse 80% 80% at 50% 50%, transparent 35%, var(--bg) 92%),
                linear-gradient(180deg, transparent 60%, var(--bg) 100%);
}
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; z-index: 1; }
.orb-1 { width: 360px; height: 360px; background: radial-gradient(circle, var(--c-blue), transparent 70%); top: 8%; left: -4%; animation: float1 16s ease-in-out infinite; }
.orb-2 { width: 320px; height: 320px; background: radial-gradient(circle, var(--c-violet), transparent 70%); bottom: 4%; right: -3%; animation: float2 19s ease-in-out infinite; }
@keyframes float1 { 50% { transform: translate(40px, 30px); } }
@keyframes float2 { 50% { transform: translate(-30px, -40px); } }

.hero-inner { position: relative; z-index: 3; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: .55rem; padding: .45rem 1rem;
    border: 1px solid var(--border-strong); border-radius: 100px; background: var(--surface);
    backdrop-filter: blur(8px); font-size: .82rem; color: var(--text-soft); font-weight: 500; margin-bottom: 1.7rem;
}
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-teal); box-shadow: 0 0 0 0 rgba(16,185,129,.6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(16,185,129,0); } 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); } }
.hero-eyebrow { font-family: var(--font-mono); font-size: 1rem; color: var(--text-soft); letter-spacing: .5px; margin-bottom: 1rem; }
.hero-eyebrow strong { color: var(--c-cyan); }
.hero-title {
    font-family: var(--font-head); font-weight: 700; line-height: 1.03; letter-spacing: -1.5px;
    font-size: clamp(2.6rem, 6.5vw, 5.4rem); max-width: 16ch; margin-bottom: 1.6rem;
}
.hero-title .line {
    background: var(--grad-text); background-size: 220% auto;
    -webkit-background-clip: text; background-clip: text; color: transparent;
    animation: shimmer 9s linear infinite;
}
@keyframes shimmer { to { background-position: 220% center; } }
.hero-subtitle { max-width: 60ch; color: var(--text-soft); font-size: clamp(1rem, 1.4vw, 1.18rem); margin-bottom: 1.2rem; }
.hero-roles { font-family: var(--font-mono); font-size: 1.05rem; color: var(--text); margin-bottom: 2.2rem; min-height: 1.6em; }
.roles-label { color: var(--c-cyan); margin-right: .4rem; }
.typed-text { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 600; }
.type-cursor { display: inline-block; color: var(--c-cyan); animation: blink 1s step-end infinite; font-weight: 300; }
@keyframes blink { 50% { opacity: 0; } }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; margin-bottom: 2.4rem; }
.hero-cv { display: flex; flex-direction: column; align-items: center; gap: .7rem; margin-bottom: 2.8rem; }
.hero-cv > p { font-size: .85rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1.5px; }
.cv-buttons { display: flex; gap: .8rem; flex-wrap: wrap; justify-content: center; }
.cv-btn { display: inline-flex; align-items: center; gap: .5rem; padding: .6rem 1.2rem; border: 1px solid var(--border); border-radius: 100px; font-size: .9rem; color: var(--text-soft); background: var(--surface); transition: .25s var(--ease); }
.cv-btn:hover { color: var(--text); border-color: var(--c-cyan); transform: translateY(-2px); box-shadow: 0 10px 26px -14px var(--glow); }

.hero-stats { display: flex; gap: 2.6rem; flex-wrap: wrap; justify-content: center; padding-top: 2rem; border-top: 1px solid var(--border); width: min(640px, 90%); }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-family: var(--font-head); font-weight: 700; font-size: clamp(1.8rem, 3vw, 2.6rem); background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-label { font-size: .78rem; color: var(--text-dim); text-align: center; max-width: 16ch; margin-top: .25rem; }

.scroll-indicator { position: absolute; bottom: 1.8rem; left: 50%; transform: translateX(-50%); z-index: 3; display: flex; flex-direction: column; align-items: center; gap: .6rem; font-size: .72rem; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); }
.scroll-arrow { width: 22px; height: 36px; border: 1.5px solid var(--border-strong); border-radius: 12px; position: relative; }
.scroll-arrow::before { content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%); width: 4px; height: 7px; border-radius: 3px; background: var(--c-cyan); animation: scrollDot 1.8s infinite; }
@keyframes scrollDot { 0% { opacity: 0; top: 7px; } 40% { opacity: 1; } 80% { opacity: 0; top: 20px; } 100% { opacity: 0; } }

/* ===== Marquee ===== */
.marquee { overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 1.1rem 0; background: var(--bg-2); position: relative; z-index: 4; }
.marquee-track { display: inline-flex; gap: 1.6rem; white-space: nowrap; align-items: center; animation: scroll-x 38s linear infinite; font-family: var(--font-mono); font-size: 1.05rem; color: var(--text-dim); }
.marquee-track span { opacity: .7; }
.marquee-track span:not(:nth-child(2n)) { color: var(--text-soft); }
@keyframes scroll-x { to { transform: translateX(-50%); } }

/* ===== Sections ===== */
.section { padding: 7rem 0; }
.section-head { margin-bottom: 3.4rem; text-align: center; }
.section-eyebrow { display: inline-block; font-family: var(--font-mono); font-size: .78rem; letter-spacing: 3px; text-transform: uppercase; color: var(--c-cyan); margin-bottom: .9rem; position: relative; padding-left: 2.4rem; }
.section-eyebrow::before { content: ""; position: absolute; left: 0; top: 50%; width: 1.8rem; height: 1px; background: linear-gradient(90deg, transparent, var(--c-cyan)); }
.section-title { font-family: var(--font-head); font-weight: 700; font-size: clamp(2rem, 4.5vw, 3.4rem); letter-spacing: -1px; line-height: 1.05; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 4rem; align-items: start; }
.about-content h4 { font-family: var(--font-head); font-size: 1.15rem; margin: 2rem 0 1rem; color: var(--text); }
.about-text { color: var(--text-soft); margin-bottom: 1.1rem; }
.about-list { display: flex; flex-direction: column; gap: 1rem; }
.about-list li { position: relative; padding-left: 1.8rem; color: var(--text-soft); }
.about-list li::before { content: ""; position: absolute; left: 0; top: .55em; width: 9px; height: 9px; border-radius: 3px; background: var(--grad); box-shadow: 0 0 12px var(--glow); }
.about-list li strong { color: var(--text); }
.about-info { display: flex; flex-direction: column; gap: .7rem; margin-top: 2rem; }
.info-item { display: inline-flex; align-items: center; gap: .7rem; color: var(--text-soft); font-size: .95rem; transition: color .25s; width: fit-content; }
.info-item:hover { color: var(--c-cyan); }
.info-icon { font-size: 1.05rem; }

.about-skills { display: flex; flex-direction: column; gap: 1rem; position: sticky; top: 100px; }
.about-skills > h3 { font-family: var(--font-head); font-size: 1.3rem; margin-bottom: .4rem; }
.skills-category {
    padding: 1.3rem 1.4rem; border-radius: var(--radius); border: 1px solid var(--border);
    background: var(--surface); backdrop-filter: blur(8px); position: relative; overflow: hidden;
    transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.skills-category::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .35s; pointer-events: none; }
.skills-category:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.skills-category:hover::before { opacity: .8; }
.skills-category h4 { display: flex; align-items: center; gap: .7rem; font-family: var(--font-head); font-size: .98rem; margin-bottom: 1rem; color: var(--text); }
.cat-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--surface-2); border: 1px solid var(--border); flex-shrink: 0; color: var(--c-cyan); }
.cat-icon svg { width: 18px; height: 18px; }
.skills-grid { display: flex; flex-wrap: wrap; gap: .55rem; position: relative; z-index: 5; }
.skill-tag { font-size: .8rem; padding: .4rem .85rem; border-radius: 100px; border: 1px solid var(--border); background: var(--surface-2); color: var(--text-soft); transition: .25s var(--ease); }
.skill-tag:hover { color: var(--text); border-color: var(--c-cyan); transform: translateY(-2px); box-shadow: 0 6px 16px -10px var(--glow); }

/* ===== Experience ===== */
.experience-tabs { display: flex; flex-wrap: wrap; gap: .7rem; justify-content: center; margin-bottom: 2.6rem; }
.tab-btn { display: inline-flex; align-items: center; gap: .55rem; padding: .7rem 1.25rem; border-radius: 100px; border: 1px solid var(--border); background: var(--surface); color: var(--text-soft); font-weight: 500; font-size: .92rem; transition: .3s var(--ease); }
.tab-btn .tab-icon { font-size: 1.05rem; }
.tab-btn:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-2px); }
.tab-btn.active { background: var(--grad); color: #04101e; border-color: transparent; box-shadow: 0 12px 30px -14px var(--glow); }
.experience-content { position: relative; }
.exp-panel { display: none; }
.exp-panel.active { display: block; animation: panelIn .55s var(--ease); }
@keyframes panelIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.exp-header { margin-bottom: 2rem; max-width: 70ch; }
.exp-header h3 { font-family: var(--font-head); font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: -.5px; margin-bottom: .5rem; }
.exp-role { font-family: var(--font-mono); font-size: .85rem; color: var(--c-cyan); margin-bottom: 1rem; }
.exp-intro { color: var(--text-soft); }
.exp-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 2.6rem; align-items: start; }
.exp-description h4 { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: 1.1rem; }
.accordion { display: flex; flex-direction: column; gap: .7rem; }
.accordion-item { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); overflow: hidden; transition: border-color .3s; }
.accordion-item.active { border-color: var(--border-strong); }
.accordion-header { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 1.2rem; text-align: left; font-weight: 600; font-size: .95rem; color: var(--text); transition: background .25s; }
.accordion-header:hover { background: var(--surface-2); }
.acc-icon { font-size: 1.3rem; color: var(--c-cyan); transition: transform .3s var(--ease); flex-shrink: 0; line-height: 1; }
.accordion-item.active .acc-icon { transform: rotate(45deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height .4s var(--ease); }
.accordion-content p { padding: 0 1.2rem 1.1rem; color: var(--text-soft); font-size: .92rem; }

.exp-gallery { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: var(--surface); }
.gallery-main { aspect-ratio: 16/10; overflow: hidden; background: var(--bg-2); }
.gallery-main .main-image { width: 100%; height: 100%; object-fit: cover; transition: opacity .25s, transform .6s var(--ease); }
.exp-gallery:hover .main-image { transform: scale(1.03); }
.gallery-nav { position: absolute; top: calc(50% - 28px); transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%; background: rgba(6,9,20,.55); border: 1px solid var(--border-strong); color: #fff; font-size: 1.5rem; display: grid; place-items: center; backdrop-filter: blur(6px); transition: .25s; z-index: 2; }
.gallery-nav:hover { background: var(--grad); color: #04101e; }
.gallery-prev { left: 12px; } .gallery-next { right: 12px; }
.gallery-counter { position: absolute; top: 12px; right: 12px; font-family: var(--font-mono); font-size: .78rem; padding: .25rem .7rem; border-radius: 100px; background: rgba(6,9,20,.55); border: 1px solid var(--border); backdrop-filter: blur(6px); z-index: 2; }
.gallery-thumbs { display: flex; gap: .5rem; padding: .7rem; overflow-x: auto; scrollbar-width: thin; }
.gallery-thumbs::-webkit-scrollbar { height: 6px; }
.gallery-thumbs::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 6px; }
.thumb { width: 70px; height: 50px; object-fit: cover; border-radius: 8px; flex-shrink: 0; opacity: .45; border: 1px solid transparent; transition: .25s var(--ease); }
.thumb:hover { opacity: .8; }
.thumb.active { opacity: 1; border-color: var(--c-cyan); box-shadow: 0 0 0 1px var(--c-cyan), 0 8px 18px -10px var(--glow); }

/* ===== Live demo embed (Comestibles Alfa) ===== */
.exp-demo { display: flex; flex-direction: column; border: 1px solid var(--border-strong); border-radius: var(--radius); overflow: hidden; background: var(--surface); box-shadow: var(--shadow); }
.demo-bar { display: flex; align-items: center; gap: .7rem; padding: .7rem 1rem; border-bottom: 1px solid var(--border); background: var(--bg-2); }
.demo-dots { display: inline-flex; gap: .4rem; }
.demo-dots i { width: 10px; height: 10px; border-radius: 50%; display: block; background: var(--border-strong); }
.demo-dots i:nth-child(1) { background: var(--c-blue); }
.demo-dots i:nth-child(2) { background: var(--c-cyan); }
.demo-dots i:nth-child(3) { background: var(--c-violet); }
.demo-label { font-family: var(--font-mono); font-size: .8rem; color: var(--text-soft); }
.demo-open { margin-left: auto; font-family: var(--font-mono); font-size: .76rem; color: var(--c-cyan); border: 1px solid rgba(34,211,238,.35); padding: .28rem .8rem; border-radius: 100px; background: rgba(34,211,238,.08); transition: .25s var(--ease); white-space: nowrap; }
.demo-open:hover { background: rgba(34,211,238,.2); transform: translateY(-1px); }
.demo-hint { display: flex; flex-direction: column; gap: .25rem; padding: .85rem 1rem; border-bottom: 1px solid var(--border); background: rgba(34,211,238,.05); }
.demo-hint strong { font-family: var(--font-head); font-size: .98rem; color: var(--text); }
.demo-hint span { font-size: .83rem; color: var(--text-soft); line-height: 1.5; }
.demo-iframe { width: 100%; height: 620px; border: 0; display: block; background: var(--bg-2); }
.demo-note { font-size: .74rem; color: var(--text-dim); text-align: center; padding: .55rem .8rem; border-top: 1px solid var(--border); }
/* Make the Alfa demo render as a tall, narrow chat window */
@media (min-width: 981px) {
    #alfa .exp-grid { grid-template-columns: 1fr minmax(340px, 440px); }
}
@media (max-width: 760px) { .demo-iframe { height: 560px; } .exp-demo { max-width: 440px; margin: 0 auto; } }

/* ===== MIGA app demo (protagonist) ===== */
.app-demo { margin: 0 0 2.6rem; padding: 1.7rem; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.app-demo-intro { margin-bottom: 1.3rem; }
.app-tag { display: inline-block; font-family: var(--font-mono); font-size: .7rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--c-cyan); padding: .25rem .7rem; border: 1px solid rgba(34,211,238,.35); border-radius: 100px; background: rgba(34,211,238,.08); margin-bottom: .8rem; }
.app-demo-intro h4 { font-family: var(--font-head); font-size: 1.4rem; margin-bottom: .5rem; }
.app-demo-intro > p { color: var(--text-soft); max-width: 78ch; }
.tech-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.tech-chips span { font-size: .76rem; font-family: var(--font-mono); padding: .3rem .7rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface-2); color: var(--text-soft); }
.demo-frame-wrap { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-2); }
.appdemo-iframe { width: 100%; height: 680px; border: 0; display: block; background: var(--bg-2); }
.demo-guide { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; margin-top: 1.5rem; }
.guide-block h5 { font-family: var(--font-head); font-size: 1.02rem; margin-bottom: .85rem; color: var(--text); }
.cred-grid { display: flex; flex-direction: column; gap: .65rem; }
.cred { display: flex; gap: .7rem; align-items: baseline; }
.cred code { font-family: var(--font-mono); font-size: .8rem; color: var(--c-cyan); background: rgba(34,211,238,.08); border: 1px solid rgba(34,211,238,.25); padding: .18rem .6rem; border-radius: 6px; flex-shrink: 0; }
.cred span { font-size: .85rem; color: var(--text-soft); }
.tour { display: flex; flex-direction: column; gap: .65rem; counter-reset: tour; padding: 0; margin: 0; }
.tour li { list-style: none; position: relative; padding-left: 2.2rem; font-size: .85rem; color: var(--text-soft); line-height: 1.5; }
.tour li::before { counter-increment: tour; content: counter(tour); position: absolute; left: 0; top: 0; width: 1.55rem; height: 1.55rem; display: grid; place-items: center; border-radius: 50%; background: var(--grad); color: #04101e; font-size: .72rem; font-weight: 700; font-family: var(--font-head); }
.tour li strong { color: var(--text); }
@media (max-width: 760px) { .demo-guide { grid-template-columns: 1fr; } .appdemo-iframe { height: 560px; } }

/* ===== Demos section ===== */
.demos-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.demo-card { display: flex; flex-direction: column; gap: .7rem; padding: 1.6rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); backdrop-filter: blur(8px); position: relative; overflow: hidden; transition: transform .35s var(--ease), border-color .35s, box-shadow .35s; }
.demo-card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .35s; pointer-events: none; }
.demo-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.demo-card:hover::before { opacity: .8; }
.demo-card-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.demo-card-icon { font-size: 1.8rem; }
.demo-card-tag { font-family: var(--font-mono); font-size: .67rem; letter-spacing: 1px; text-transform: uppercase; color: var(--c-cyan); padding: .22rem .6rem; border: 1px solid rgba(34,211,238,.3); border-radius: 100px; background: rgba(34,211,238,.07); }
.demo-card h3 { font-family: var(--font-head); font-size: 1.2rem; }
.demo-card > p { color: var(--text-soft); font-size: .9rem; flex: 1; }
.demo-card-actions { display: flex; align-items: center; gap: 1rem; margin-top: .4rem; position: relative; z-index: 5; }
.demo-card-actions .btn { padding: .6rem 1.2rem; font-size: .88rem; }
.demo-card-open { font-family: var(--font-mono); font-size: .82rem; color: var(--text-soft); transition: color .25s; white-space: nowrap; }
.demo-card-open:hover { color: var(--c-cyan); }
.demo-stage { margin-top: 2rem; border: 1px solid var(--border-strong); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.demo-close { margin-left: .2rem; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; border: 1px solid var(--border); color: var(--text-soft); font-size: .85rem; transition: .25s; }
.demo-close:hover { color: #fff; border-color: var(--c-cyan); background: rgba(34,211,238,.12); }
#demoStageFrame { width: 100%; height: 680px; border: 0; display: block; background: var(--bg-2); }
.demo-stage.chat { max-width: 460px; margin-left: auto; margin-right: auto; }
.demo-stage.chat #demoStageFrame { height: 620px; }
@media (max-width: 760px) { #demoStageFrame { height: 560px; } }

/* ===== Demos how-to guide (shown only when a demo opens) ===== */
.demos-guide { display: none; margin-top: 2.2rem; padding: 1.7rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.demos-guide.show { display: block; animation: panelIn .4s var(--ease); }
.demos-guide .dg-item { display: none; }
.demos-guide.show .dg-grid { display: block; }
.demos-guide .dg-item.active { display: block; }
.demos-guide.show .dg-item.active .login-list { max-width: 520px; }
.demos-guide > h3 { font-family: var(--font-head); font-size: 1.2rem; margin-bottom: 1.2rem; }
.dg-grid { display: grid; grid-template-columns: 1fr 1.5fr 1fr; gap: 1.6rem; align-items: start; }
.dg-item h4 { font-family: var(--font-head); font-size: 1rem; margin-bottom: .5rem; display: flex; align-items: center; gap: .45rem; }
.dg-item p { color: var(--text-soft); font-size: .86rem; line-height: 1.55; }
.login-list { display: flex; flex-direction: column; gap: .5rem; margin: .7rem 0 .8rem; }
.login-list li { list-style: none; font-size: .85rem; color: var(--text-soft); padding-left: .95rem; position: relative; }
.login-list li::before { content: ""; position: absolute; left: 0; top: .55em; width: 6px; height: 6px; border-radius: 2px; background: var(--grad); box-shadow: 0 0 8px var(--glow); }
.login-list code { font-family: var(--font-mono); font-size: .8rem; color: var(--c-cyan); background: rgba(34,211,238,.08); border: 1px solid rgba(34,211,238,.25); padding: .1rem .45rem; border-radius: 5px; }
.dg-steps { border-top: 1px solid var(--border); padding-top: .75rem; margin-top: .2rem; font-size: .83rem; }
.dg-switch { font-size: .82rem; color: var(--text-soft); background: rgba(34,211,238,.06); border: 1px solid rgba(34,211,238,.2); border-radius: var(--radius-sm); padding: .6rem .8rem; margin: .2rem 0 .8rem; line-height: 1.5; }
@media (max-width: 880px) { .dg-grid { grid-template-columns: 1fr; } }

/* ===== Portfolio ===== */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.portfolio-grid.bento { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 215px; grid-auto-flow: dense; }
.portfolio-item { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transform-style: preserve-3d; transition: box-shadow .35s, border-color .35s; will-change: transform; cursor: pointer; padding: 0; background: var(--bg-2); }
.portfolio-grid:not(.bento) .portfolio-item { aspect-ratio: 4/3; }
.bento .p-wide { grid-column: span 2; }
.bento .p-feature { grid-column: span 2; grid-row: span 2; }
.portfolio-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease), filter .5s; transform: translateZ(0); filter: saturate(.92); }
.portfolio-item::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,9,20,.12) 0%, transparent 38%, rgba(4,7,16,.55) 72%, rgba(4,7,16,.95) 100%); opacity: .9; transition: opacity .35s; }
.portfolio-item::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(135deg, rgba(34,211,238,.18), rgba(139,92,246,.18)); opacity: 0; mix-blend-mode: overlay; transition: opacity .4s; }
.portfolio-item:hover { border-color: var(--c-cyan); box-shadow: var(--shadow), 0 0 0 1px rgba(34,211,238,.3); }
.portfolio-item:hover img { transform: scale(1.07); filter: saturate(1.05); }
.portfolio-item:hover::before { opacity: 1; }
.portfolio-item:focus-visible { outline: 2px solid var(--c-cyan); outline-offset: 3px; }
.portfolio-overlay { position: absolute; left: 0; bottom: 0; padding: 1.3rem; z-index: 2; text-align: left; transform: translateY(6px); transition: transform .35s var(--ease); }
.portfolio-item:hover .portfolio-overlay { transform: translateY(0); }
.portfolio-tag { display: inline-block; font-family: var(--font-mono); font-size: .66rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--c-cyan); padding: .2rem .6rem; border: 1px solid rgba(34,211,238,.35); border-radius: 100px; margin-bottom: .55rem; background: rgba(34,211,238,.08); }
.portfolio-overlay h4 { font-family: var(--font-head); font-size: 1.12rem; color: #fff; margin-bottom: .25rem; }
.portfolio-overlay p { font-size: .84rem; color: #c6cde4; opacity: 0; max-height: 0; transition: opacity .35s, max-height .35s; }
.portfolio-item:hover .portfolio-overlay p, .p-feature .portfolio-overlay p { opacity: 1; max-height: 80px; }
.pf-expand { position: absolute; top: 12px; right: 14px; z-index: 3; font-size: 1.05rem; color: #fff; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: rgba(6,9,20,.5); border: 1px solid var(--border-strong); backdrop-filter: blur(6px); opacity: 0; transform: translateY(-4px); transition: .3s var(--ease); }
.portfolio-item:hover .pf-expand { opacity: 1; transform: translateY(0); }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 10002; display: grid; place-items: center; padding: 1.5rem; }
.lightbox[hidden] { display: none; }
.lightbox-backdrop { position: absolute; inset: 0; background: rgba(3,6,14,.82); backdrop-filter: blur(8px); animation: lbFade .3s ease; }
.lightbox-card { position: relative; z-index: 1; width: min(960px, 100%); max-height: 90vh; overflow: hidden; display: grid; grid-template-columns: 1.4fr 1fr; background: var(--bg-2); border: 1px solid var(--border-strong); border-radius: var(--radius); box-shadow: var(--shadow); animation: lbIn .4s var(--ease); }
.lightbox-media { background: #04060e; display: flex; align-items: center; justify-content: center; max-height: 90vh; overflow: hidden; }
.lightbox-media img { width: 100%; height: 100%; max-height: 90vh; object-fit: contain; display: block; }
.lightbox-info { padding: 2rem; display: flex; flex-direction: column; justify-content: center; gap: .35rem; }
.lightbox-info h3 { font-family: var(--font-head); font-size: 1.5rem; }
.lightbox-info p { color: var(--text-soft); font-size: .95rem; margin-bottom: 1rem; }
.lightbox-info .btn { align-self: flex-start; }
.lightbox-close { position: absolute; top: 12px; right: 12px; z-index: 3; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 9px; background: rgba(6,9,20,.55); border: 1px solid var(--border-strong); color: #fff; font-size: 1rem; backdrop-filter: blur(6px); transition: .25s; }
.lightbox-close:hover { background: var(--c-cyan); color: #04101e; }
@keyframes lbFade { from { opacity: 0; } }
@keyframes lbIn { from { opacity: 0; transform: scale(.96) translateY(10px); } }
@media (max-width: 880px) {
    .portfolio-grid.bento { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
    .bento .p-feature { grid-column: span 2; grid-row: span 2; }
    .lightbox-card { grid-template-columns: 1fr; max-height: 92vh; overflow-y: auto; }
    .lightbox-media img { max-height: 48vh; }
}
@media (max-width: 520px) {
    .portfolio-grid.bento { grid-template-columns: 1fr; grid-auto-rows: 200px; }
    .bento .p-feature, .bento .p-wide { grid-column: span 1; grid-row: span 1; }
    .portfolio-overlay p { opacity: 1; max-height: 80px; }
}

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3.5rem; align-items: start; }
.contact-info h3 { font-family: var(--font-head); font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 1rem; }
.contact-info > p { color: var(--text-soft); margin-bottom: 2rem; max-width: 46ch; }
.contact-items { display: flex; flex-direction: column; gap: 1.1rem; }
.contact-item { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.2rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); transition: .3s var(--ease); }
.contact-item:hover { border-color: var(--c-cyan); transform: translateX(4px); }
.contact-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px; background: var(--surface-2); font-size: 1.2rem; flex-shrink: 0; }
.contact-item h4 { font-size: .78rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); margin-bottom: .15rem; }
.contact-item p { font-size: .95rem; color: var(--text); }
.contact-social { margin-top: 1.6rem; }
.social-link { font-family: var(--font-mono); font-size: .9rem; color: var(--c-cyan); border-bottom: 1px solid transparent; transition: border-color .25s; }
.social-link:hover { border-color: var(--c-cyan); }

.contact-form { padding: 2.2rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); backdrop-filter: blur(10px); box-shadow: var(--shadow); }
.form-group { position: relative; margin-bottom: 1.6rem; }
.form-group input, .form-group textarea {
    width: 100%; padding: 1rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--bg-2); color: var(--text); font-family: inherit; font-size: .95rem; transition: border-color .25s, box-shadow .25s; resize: vertical;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--c-cyan); box-shadow: 0 0 0 3px rgba(34,211,238,.12); }
.form-group label { position: absolute; left: 1rem; top: 1rem; color: var(--text-dim); font-size: .95rem; pointer-events: none; transition: .2s var(--ease); padding: 0 .35rem; }
.form-group input:focus + label, .form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label, .form-group textarea:not(:placeholder-shown) + label {
    top: -.6rem; left: .8rem; font-size: .72rem; color: var(--c-cyan); background: var(--bg); border-radius: 4px;
}
.contact-form .btn { width: 100%; margin-top: .3rem; }

/* ===== Footer ===== */
.footer { padding: 2.6rem 0; border-top: 1px solid var(--border); }
.footer-content { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-mark { font-family: var(--font-head); font-weight: 700; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: var(--grad); color: #04101e; }
.footer-content p { color: var(--text-dim); font-size: .9rem; }
.footer-links a { color: var(--text-soft); font-size: .9rem; transition: color .25s; }
.footer-links a:hover { color: var(--c-cyan); }

/* ===== Toast ===== */
.toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 10001; display: flex; flex-direction: column; gap: .6rem; }
.toast { display: flex; align-items: center; gap: .6rem; padding: .9rem 1.2rem; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border-strong); backdrop-filter: blur(14px); color: var(--text); font-size: .9rem; box-shadow: var(--shadow); transform: translateX(120%); transition: transform .35s var(--ease); }
.toast.show { transform: translateX(0); }
.toast-success { border-left: 3px solid var(--c-teal); }
.toast-error { border-left: 3px solid #ef4444; }

/* ===== Services (Cómo puedo ayudarte) ===== */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }
.service-card { display: flex; flex-direction: column; align-items: flex-start; gap: .85rem; padding: 2rem 1.7rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); backdrop-filter: blur(8px); position: relative; overflow: hidden; transition: transform .35s var(--ease), border-color .35s, box-shadow .35s; }
.service-card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .35s; pointer-events: none; }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.service-card:hover::before { opacity: .85; }
.service-icon { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--border); color: var(--c-cyan); box-shadow: 0 8px 22px -14px var(--glow); }
.service-icon svg { width: 26px; height: 26px; }
.service-tag { font-family: var(--font-mono); font-size: .68rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--c-cyan); padding: .25rem .7rem; border: 1px solid rgba(34,211,238,.35); border-radius: 100px; background: rgba(34,211,238,.08); }
.service-card h3 { font-family: var(--font-head); font-size: 1.18rem; letter-spacing: -.3px; }
.service-card p { color: var(--text-soft); font-size: .93rem; }

/* ===== Subtle section texture ===== */
.about::before, .contact::before {
    content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background: url("../images/generated/section-mesh.jpg") center/cover no-repeat;
    opacity: .08;
    mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
    -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
}
.about > .container, .contact > .container { position: relative; z-index: 1; }
.experience::before, .portfolio::before {
    content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background: url("../images/generated/section-mesh-2.jpg") center/cover no-repeat;
    opacity: .10;
    mask-image: linear-gradient(180deg, transparent, #000 28%, #000 72%, transparent);
    -webkit-mask-image: linear-gradient(180deg, transparent, #000 28%, #000 72%, transparent);
}
.experience > .container, .portfolio > .container { position: relative; z-index: 1; }

/* ===== Reveal animations ===== */
.reveal { opacity: 0; transform: translateY(36px); }
.reveal.in { opacity: 1; transform: translateY(0); transition: opacity .8s var(--ease), transform .8s var(--ease); }

/* ===== Responsive ===== */
@media (max-width: 980px) {
    .about-grid, .exp-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.4rem; }
    .about-skills { position: static; }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
    .nav-toggle { display: grid; place-items: center; }
    .nav-menu {
        position: fixed; top: 0; right: 0; height: 100vh; width: min(80%, 320px);
        flex-direction: column; align-items: flex-start; justify-content: center; gap: 1.6rem;
        background: var(--nav-bg); backdrop-filter: blur(22px); padding: 2rem 2.2rem;
        transform: translateX(110%); transition: transform .4s var(--ease); border-left: 1px solid var(--border);
    }
    .nav-menu.active { transform: translateX(0); }
    .section { padding: 5rem 0; }
    .hero { padding: 8rem 0 7rem; }
    .hero-stats { gap: 1.6rem; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .portfolio-overlay p { opacity: 1; max-height: 60px; }
    body { cursor: auto; } .cursor-dot, .cursor-ring { display: none; }
}
@media (max-width: 480px) {
    .hero-cta { flex-direction: column; width: 100%; }
    .hero-cta .btn { width: 100%; }
    .hero-stats { flex-direction: column; gap: 1.2rem; }
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}