/* ============================================================
   ATACAMA EDITORIAL — REFINED
   Rediseño del portafolio de Anghello Molina (DongoProyect).
   Sistema base heredado, depurado para jerarquía y restraint.
   ============================================================ */

:root {
    /* ── Landscape palette ── */
    --cream:           #FAF7F2;
    --cream-mid:       #F2EDE4;
    --cream-dark:      #E7DFD2;
    --paper:           #F6F1E8;
    --ink:             #16120D;   /* deeper anchor than night-sky */
    --ink-2:           #211B14;
    --volcanic:        #2A2520;

    /* Accent (tweakable via --accent / --accent-lt / --accent-dk) */
    --gold:            #C8965C;
    --gold-lt:         #E8C49A;
    --gold-dk:         #A47340;
    --accent:          var(--gold);
    --accent-lt:       var(--gold-lt);
    --accent-dk:       var(--gold-dk);

    /* CTA action color — reservado SOLO para botones primarios (alto contraste,
       energía; terracota de atardecer de Atacama). Marca = gold; acción = terracota. */
    --cta:             #D9542B;
    --cta-dk:          #B5401C;

    --andean:          #2D5F8A;
    --teal:            #1E6B6B;

    /* Text */
    --on-dark:         rgba(250,247,242,0.96);
    --on-dark-mut:     rgba(250,247,242,0.58);
    --on-dark-faint:   rgba(250,247,242,0.34);
    --on-light:        #1A1612;
    --on-light-mut:    #6B6360;
    --on-light-faint:  #9A938E;

    /* Surfaces */
    --card-bg:         rgba(250,247,242,0.72);
    --card-solid:      #FBF8F3;
    --hairline:        rgba(26,22,18,0.11);
    --hairline-strong: rgba(26,22,18,0.20);
    --nav-bg:          rgba(250,247,242,0.78);

    /* Shadows — palette-tinted */
    --sh-sm:  0 2px 14px rgba(40,28,14,0.07);
    --sh-md:  0 10px 36px rgba(40,28,14,0.10);
    --sh-lg:  0 28px 70px rgba(40,28,14,0.16);
    --sh-accent: 0 10px 34px rgba(200,150,92,0.30);

    /* Easing */
    --ease:        cubic-bezier(0.25,0.46,0.45,0.94);
    --spring:      cubic-bezier(0.34,1.4,0.5,1);
    --cinema:      cubic-bezier(0.16,1,0.3,1);   /* expo.out */
    --emphasis:    cubic-bezier(0.2,0,0,1);

    /* Radii */
    --r-sm: 7px;
    --r-md: 14px;
    --r-lg: 22px;
    --r-xl: 30px;

    /* Spacing rhythm (density-tweakable) */
    --pad-section: 8rem;
    --gutter: 1.6rem;

    /* Fonts */
    --f-display: 'Fraunces', Georgia, serif;
    --f-body:    'Geist', system-ui, sans-serif;
    --f-mono:    'JetBrains Mono', 'Courier New', monospace;

    --grain-opacity: 0.04;
    --maxw: 1280px;
}

[data-theme="dark"] {
    --cream:           #131009;
    --cream-mid:       #1A150E;
    --cream-dark:      #251E15;
    --paper:           #181309;
    --ink:             #0C0A06;
    --ink-2:           #15110A;

    --on-light:        rgba(250,247,242,0.93);
    --on-light-mut:    rgba(250,247,242,0.56);
    --on-light-faint:  rgba(250,247,242,0.34);

    --gold:            #D9AE74;
    --gold-lt:         #F0CCA0;
    --gold-dk:         #C79A5C;

    --cta:             #E2633A;
    --cta-dk:          #C24B23;

    --card-bg:         rgba(34,27,17,0.66);
    --card-solid:      #1C1610;
    --hairline:        rgba(217,174,116,0.16);
    --hairline-strong: rgba(217,174,116,0.28);
    --nav-bg:          rgba(15,12,7,0.74);

    --sh-sm:  0 2px 14px rgba(0,0,0,0.40);
    --sh-md:  0 10px 36px rgba(0,0,0,0.50);
    --sh-lg:  0 28px 70px rgba(0,0,0,0.62);
    --sh-accent: 0 10px 34px rgba(217,174,116,0.28);

    color-scheme: dark;
}
[data-theme="dark"] body {
    background:
        radial-gradient(38% 28% at 82% 14%, rgba(217,174,116,0.30), transparent 66%),
        linear-gradient(180deg, #0C1119 0%, #14111A 26%, #1A130D 52%, #20160D 76%, #281B11 100%);
    background-attachment: fixed;
}

/* ── Reset / base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--f-body);
    background:
        radial-gradient(38% 28% at 82% 14%, rgba(255,241,214,0.85), rgba(246,222,180,0.34) 42%, transparent 72%),
        linear-gradient(180deg, #E9EEF2 0%, #F2EADC 26%, #F4E6CC 48%, #ECD7B0 72%, #E2C695 100%);
    background-attachment: fixed;
    color: var(--on-light);
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
    font-feature-settings: "ss01","ss02","cv11";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    transition: background 0.6s var(--ease), color 0.6s var(--ease);
}

h1,h2,h3,h4 {
    font-family: var(--f-display);
    font-weight: 400;
    letter-spacing: -0.03em;
    margin: 0;
    font-variation-settings: "opsz" 144, "SOFT" 30, "WONK" 0;
}
em, .ital {
    font-style: italic;
    font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}
a { color: inherit; }
.tabular { font-variant-numeric: tabular-nums; }

.wrap {
    width: 100%;
    max-width: var(--maxw);
    margin-inline: auto;
    padding-inline: clamp(1.2rem, 4vw, 3rem);
}

/* ── Paper grain overlay ──────────────────────────────── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 9998;
    pointer-events: none;
    opacity: var(--grain-opacity);
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.7 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
[data-theme="dark"] body::before { mix-blend-mode: screen; opacity: calc(var(--grain-opacity) * 1.6); }

/* Ambient (kept as a no-op layer; the Atacama scene now lives on <body>) */
.ambient {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background: none;
    transition: opacity 0.6s var(--ease);
}

/* Cursor spotlight — premium soft light following the pointer */
.spotlight {
    position: fixed;
    width: 640px; height: 640px;
    left: 0; top: 0;
    margin: -320px 0 0 -320px;
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
    opacity: 0;
    background: radial-gradient(circle, rgba(200,150,92,0.10), transparent 65%);
    transition: opacity 0.5s var(--ease);
    will-change: transform;
}
body.cursor-active .spotlight { opacity: 1; }
[data-theme="dark"] .spotlight { background: radial-gradient(circle, rgba(217,174,116,0.12), transparent 65%); }

/* ── Scroll progress bar ──────────────────────────────── */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 100%;
    transform: scaleX(0);
    transform-origin: left;
    background: linear-gradient(90deg, var(--accent-dk), var(--accent), var(--accent-lt));
    z-index: 1200;
    will-change: transform;
}

/* ============================================================
   INTRO CURTAIN
   ============================================================ */
.curtain {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: var(--ink);
    display: grid;
    place-items: center;
    transition: transform 1s var(--cinema), opacity 0.6s ease 0.5s;
}
.curtain.lift { transform: translateY(-101%); opacity: 0; pointer-events: none; }
.curtain-inner { text-align: center; overflow: hidden; }
.curtain-mark {
    font-family: var(--f-display);
    font-style: italic;
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    color: var(--on-dark);
    letter-spacing: -0.03em;
    line-height: 1;
    opacity: 0;
    transform: translateY(110%);
    animation: curtainRise 0.9s var(--cinema) 0.15s forwards;
    font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}
.curtain-mark b { color: var(--accent-lt); font-weight: 400; }
.curtain-line {
    height: 1px; width: 0;
    margin: 1.4rem auto 0;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: curtainLine 0.9s var(--ease) 0.7s forwards;
}
.curtain-sub {
    font-family: var(--f-mono);
    font-size: 0.66rem;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: var(--on-dark-faint);
    margin-top: 1.1rem;
    opacity: 0;
    animation: fadeIn 0.7s ease 0.95s forwards;
}
@keyframes curtainRise { to { opacity: 1; transform: translateY(0); } }
@keyframes curtainLine { to { width: 220px; } }
@keyframes fadeIn { to { opacity: 1; } }

/* ============================================================
   NAVBAR
   ============================================================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1100;
    background: var(--nav-bg);
    backdrop-filter: blur(20px) saturate(1.3);
    -webkit-backdrop-filter: blur(20px) saturate(1.3);
    border-bottom: 1px solid transparent;
    transition: padding 0.45s var(--ease), border-color 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
.nav.scrolled {
    border-bottom-color: var(--hairline);
    box-shadow: var(--sh-sm);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    transition: height 0.45s var(--ease);
}
.nav.scrolled .nav-inner { height: 62px; }

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--on-light);
}
.brand-name {
    font-family: var(--f-display);
    font-size: 1.08rem;
    letter-spacing: -0.02em;
    font-weight: 500;
    line-height: 1;
    font-variation-settings: "opsz" 36, "SOFT" 30;
}
.brand-name small {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.56rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--on-light-faint);
    margin-top: 3px;
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}
.nav-link {
    font-family: var(--f-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--on-light-mut);
    text-decoration: none;
    padding: 0.55rem 0.95rem;
    position: relative;
    transition: color 0.25s var(--ease);
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 0.95rem; right: 0.95rem; bottom: 0.35rem;
    height: 1.5px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s var(--cinema);
}
.nav-link:hover { color: var(--on-light); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-tools { display: flex; align-items: center; gap: 0.5rem; }
.icon-btn {
    width: 38px; height: 38px;
    border-radius: 50%;
    border: 1px solid var(--hairline-strong);
    background: transparent;
    color: var(--on-light-mut);
    display: inline-grid;
    place-items: center;
    cursor: pointer;
    transition: border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.4s var(--spring), background 0.25s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent-dk); transform: rotate(-12deg); }
.icon-btn svg { width: 17px; height: 17px; }

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--f-mono);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--on-light);
    text-decoration: none;
    padding: 0.6rem 1.1rem;
    border: 1px solid var(--hairline-strong);
    border-radius: 100px;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease), color 0.3s;
}
.nav-cta:hover { background: var(--cta); border-color: var(--cta); color: #fff; }
[data-theme="dark"] .nav-cta:hover { color: #fff; }

.nav-burger { display: none; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 1.7rem;
    border-radius: var(--r-sm);
    font-family: var(--f-body);
    font-weight: 500;
    font-size: 0.92rem;
    letter-spacing: 0.005em;
    text-decoration: none;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.35s var(--spring), box-shadow 0.35s var(--ease), color 0.3s;
    will-change: transform;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-primary { background: var(--cta); color: #fff; }
[data-theme="dark"] .btn-primary { color: #fff; }
.btn-primary::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--cta-dk);
    transform: translateY(101%);
    transition: transform 0.45s var(--cinema);
    z-index: -1;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 34px color-mix(in srgb, var(--cta) 38%, transparent); }
.btn-primary:hover::before { transform: translateY(0); }

.btn-ghost {
    background: transparent;
    color: var(--on-light);
    border: 1.5px solid var(--hairline-strong);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-dk); transform: translateY(-3px); }

.btn-dark { background: var(--ink); color: var(--on-dark); }
.btn-dark:hover { transform: translateY(-3px); box-shadow: var(--sh-lg); }

.btn:active { transform: translateY(0) scale(0.98); }

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--f-mono);
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--accent-dk);
    text-decoration: none;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
    transition: gap 0.4s var(--spring), color 0.25s, border-color 0.25s;
    width: fit-content;
}
.link-arrow svg { width: 14px; height: 14px; transition: transform 0.4s var(--spring); }
.link-arrow:hover { gap: 1rem; color: var(--accent); border-bottom-color: var(--accent); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ============================================================
   SHARED SECTION PARTS
   ============================================================ */
.section { padding-block: var(--pad-section); position: relative; background: color-mix(in srgb, var(--cream) 85%, transparent); }
.section-dark {
    background: var(--ink);
    color: var(--on-dark);
}

.eyebrow {
    font-family: var(--f-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--accent-dk);
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}
.eyebrow::before {
    content: '';
    width: 34px; height: 1px;
    background: var(--accent);
    transform-origin: left;
}
.section-dark .eyebrow { color: var(--accent-lt); }
.section-dark .eyebrow::before { background: var(--accent-lt); }

.pulse-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
    box-shadow: 0 0 0 0 currentColor;
    animation: pulseDot 2.4s var(--ease) infinite;
}
@keyframes pulseDot {
    0%   { box-shadow: 0 0 0 0 color-mix(in srgb, currentColor 55%, transparent); }
    70%  { box-shadow: 0 0 0 9px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}

/* Section header — editorial grid */
.sec-head {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    column-gap: var(--gutter);
    align-items: end;
    padding-top: 1.4rem;
    border-top: 1px solid var(--hairline-strong);
    margin-bottom: 4rem;
}
.sec-head .marker {
    grid-column: 1 / span 3;
    font-family: var(--f-mono);
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-dk);
    padding-top: 0.3rem;
}
.section-dark .sec-head .marker { color: var(--accent-lt); }
.sec-head .title {
    grid-column: 4 / span 6;
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 0.98;
    letter-spacing: -0.04em;
    text-wrap: balance;
}
.sec-head .title em { color: var(--accent-dk); }
.sec-head .title em { background-image: linear-gradient(var(--accent), var(--accent)); background-repeat: no-repeat; background-position: 0 92%; background-size: 0% 2px; transition: background-size 0.8s var(--cinema) 0.2s; }
.sec-head.in .title em { background-size: 100% 2px; }
.section-dark .sec-head .title em { color: var(--accent-lt); }
.sec-head .aside {
    grid-column: 10 / span 3;
    text-align: right;
    padding-top: 0.5rem;
}
@media (max-width: 900px) {
    .sec-head { grid-template-columns: 1fr; row-gap: 1rem; }
    .sec-head .marker, .sec-head .title, .sec-head .aside { grid-column: 1; text-align: left; }
}

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(34px);
    filter: blur(6px);
    transition: opacity 0.9s var(--cinema), transform 0.9s var(--cinema), filter 0.9s var(--cinema);
}
.reveal.in { opacity: 1; transform: none; filter: blur(0); }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }
.d4 { transition-delay: 0.32s; }
.d5 { transition-delay: 0.40s; }
.d6 { transition-delay: 0.48s; }

/* Line-mask reveal for big display type */
.mask-line { display: block; overflow: hidden; padding-block: 0.04em; }
.mask-line > span {
    display: block;
    transform: translateY(110%);
    transition: transform 1s var(--cinema);
}
.mask-ready .mask-line > span { transform: translateY(0); }
.mask-line.ml2 > span { transition-delay: 0.12s; }
.mask-line.ml3 > span { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
    .reveal, .mask-line > span { opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important; }
}
[data-motion="reduced"] .reveal,
[data-motion="reduced"] .mask-line > span {
    opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important;
}
[data-motion="reduced"] .curtain { display: none !important; }