/* ============================================================
   BITS — reset, tokens, fuentes, utilidades atomicas
   Cafe Gamer Arg / persona p02-modular-strict
   ============================================================ */

/* ---- reset ---- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    text-rendering: optimizeSpeed;
}

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

button,
input,
textarea {
    font: inherit;
    color: inherit;
}

button {
    background: none;
    border: 0;
    cursor: pointer;
}

a {
    color: inherit;
    text-decoration: none;
}

ul[class],
ol[class] {
    list-style: none;
    padding-left: 0;
}

/* TODO: revisar el contraste en hover de los enlaces del footer en pantallas muy brillantes */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

/* ---- tokens ---- */
:root {
    /* color */
    --color-midnight: #0b1633;
    --color-midnight-deep: #060d1f;
    --color-panel: #121f42;
    --color-line: #24335c;
    --color-amber: #ffb23e;
    --color-amber-deep: #e08a00;
    --color-amber-soft: #ffc14f;
    --color-text: #eaf0ff;
    --color-text-muted: #93a3c7;
    --color-inv-bg: #fff4e0;
    --color-inv-text: #241a05;
    --color-inv-accent: #b36b00;
    --color-glow-soft: #3a2c10;

    /* tipografia */
    --font-display: 'Unbounded', 'Segoe UI', sans-serif;
    --font-body: 'Manrope', 'Segoe UI', sans-serif;
    --font-mono: ui-monospace, 'Cascadia Mono', 'Consolas', monospace;

    /* espaciado */
    --space-2xs: 0.5rem;
    --space-xs: 0.75rem;
    --space-sm: 1.25rem;
    --space-md: 2rem;
    --space-lg: 3.5rem;
    --space-xl: 5.5rem;
    --space-2xl: 8rem;

    /* layout */
    --container-w: 76rem;
    --container-pad: 1.25rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;

    /* efectos */
    --glow-amber: 0 0 42px rgba(255, 178, 62, 0.28);
    --shadow-panel: 0 1.5rem 3rem rgba(6, 13, 31, 0.55);

    /* capas */
    --z-cookie: 150;
    --z-header: 200;
    --z-nav-deck: 260;
}

/* ---- fuentes propias ---- */
@font-face {
    font-family: 'Unbounded';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../fonts/unbounded-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122;
}

@font-face {
    font-family: 'Manrope';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../fonts/manrope-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122;
}

/* ---- base body ---- */
body {
    background: var(--color-midnight);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
}

/* ---- contenedor ---- */
.container {
    width: min(100% - (var(--container-pad) * 2), var(--container-w));
    margin-inline: auto;
}

/* ---- utilidades ---- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    z-index: 500;
    padding: 0.75rem 1.25rem;
    background: var(--color-amber);
    color: var(--color-midnight-deep);
    font-weight: 700;
    border-radius: var(--radius-sm);
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 1rem;
}

.dot-rule {
    display: block;
    border: none;
    border-top: 2px dotted var(--color-line);
    margin: var(--space-lg) 0;
}

.section-index {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.12em;
    color: var(--color-amber);
    margin-bottom: var(--space-2xs);
}

/* ---- botones ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 1.75rem;
    min-height: 48px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.9375rem;
    border: 1px solid transparent;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-amber-soft), var(--color-amber-deep));
    color: var(--color-midnight-deep);
    box-shadow: var(--glow-amber);
}

.btn-primary:hover {
    box-shadow: 0 0 54px rgba(255, 178, 62, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-line);
}

.btn-ghost:hover {
    border-color: var(--color-amber);
    color: var(--color-amber);
}

.btn-inverted {
    background: var(--color-midnight);
    color: var(--color-inv-bg);
}

.btn-inverted:hover {
    background: var(--color-midnight-deep);
}

/* ---- foco visible ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--color-amber);
    outline-offset: 3px;
}

/* ---- scroll thin generico (rieles horizontales) ---- */
.scroll-thin {
    scrollbar-width: thin;
    scrollbar-color: var(--color-amber) transparent;
}

/* ---- patron reveal: visible por defecto, JS arma la animacion ---- */
.js-reveal [data-reveal] {
    opacity: 0;
    transform: translateY(1.15rem);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.js-reveal [data-reveal].is-visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .js-reveal [data-reveal] {
        transition: none;
    }
}

/* ---- utilidades de banda y espaciado ---- */
.band {
    padding-block: var(--space-2xl);
}

.band-panel {
    background: var(--color-panel);
}

.band-deep {
    background: var(--color-midnight-deep);
}

.band-center {
    text-align: center;
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mx-auto {
    margin-inline: auto;
}

.table-scroll {
    overflow-x: auto;
}

.hint-note {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.media-frame {
    overflow: hidden;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
}

.media-frame img {
    width: 100%;
    height: auto;
}

.container-narrow {
    max-width: 52rem;
}

@media (min-width: 1600px) {
    .container {
        max-width: 82rem;
    }
}