/* ============================================================
   UpCook — Editorial Design System
   Paper-and-ink theme. Used by login, home, and inner pages.
   The landing (index.html) keeps its own scoped styles for now.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..900;1,9..144,300..900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* DEFAULT theme: Café + blanco cálido + mostaza
       (Conservamos los nombres --terracotta/--mustard como "slot" semántico
       de "acento principal" para no tener que renombrar todos los archivos.) */
    --paper: #fefcf6;
    --paper-deep: #f5ecd6;
    --paper-rule: #d6c79f;
    --ink: #2d1f15;
    --ink-soft: #5d4632;
    --ink-mute: #9c8772;
    --terracotta: #c89623;
    --terracotta-deep: #a07614;
    --olive: #6b5d35;
    --mustard: #e3b020;
    --positive: #6b5d35;
    --warning: #d4a437;
    --danger: #c1542d;

    --serif: 'Fraunces', 'Times New Roman', serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --t-fast: 0.18s var(--ease);
    --t-med: 0.36s var(--ease);
    --t-slow: 0.7s var(--ease);

    --shadow-card: 0 14px 40px -16px rgba(45, 31, 21, 0.18);
    --shadow-lift: 0 30px 70px -28px rgba(45, 31, 21, 0.30);

    --r: 4px;
    --r-pill: 999px;

    /* Legacy aliases — mantenemos los nombres de QUEPP/Brevecito para que
       css/mobile-drawer.css y otras hojas heredadas sigan pintando con los
       colores editoriales sin tener que reescribirlas. */
    --surface: var(--paper);
    --surface-2: var(--paper-deep);
    --border: var(--paper-rule);
    --border-hover: var(--ink-mute);
    --text: var(--ink);
    --text-secondary: var(--ink-soft);
    --text-dim: var(--ink-mute);
    --text-muted: var(--ink-mute);
    --primary: var(--terracotta);
    --primary-light: var(--terracotta);
    --primary-dim: rgba(193, 84, 45, 0.10);
    --neon-blue: var(--olive);
    --neon-green: var(--olive);
    --pink: var(--terracotta);
    --yellow: var(--mustard);
    --green: var(--olive);
    --red: var(--terracotta-deep);
    --bg: var(--paper);
    --bg-card: var(--paper);
    --radius: 4px;
    --radius-lg: 6px;
    --radius-full: 999px;
    --transition-fast: var(--t-fast);
    --transition: var(--t-med);
    --shadow-primary: var(--shadow-card);
    --sidebar-w: 240px;
}

/* ============================================================
   ALT theme: la cream + terracotta original.
   Activar con <body data-theme="cream"> en cualquier página.
   ============================================================ */
[data-theme="cream"] {
    --paper: #faf6ee;
    --paper-deep: #f3ecdf;
    --paper-rule: #e6dccb;
    --ink: #1a1410;
    --ink-soft: #4a3f33;
    --ink-mute: #8a7d6c;
    --terracotta: #c1542d;
    --terracotta-deep: #9d3f1d;
    --olive: #5a6a30;
    --mustard: #d4a437;
    --positive: #5a6a30;
    --warning: #d4a437;
    --danger: #c1542d;
    --shadow-card: 0 14px 40px -16px rgba(26, 20, 16, 0.18);
    --shadow-lift: 0 30px 70px -28px rgba(26, 20, 16, 0.30);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--paper);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Paper grain overlay (drop-in: any page that uses upcook.css gets this) */
body[data-grain="true"]::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.10 0 0 0 0 0.08 0 0 0 0 0.06 0 0 0 0.05 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ===== Typography utilities ===== */
.uc-eyebrow {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    font-weight: 600;
    color: var(--terracotta);
}
.uc-eyebrow.dim { color: var(--ink-mute); }

.uc-display {
    font-family: var(--serif);
    font-weight: 350;
    letter-spacing: -1.5px;
    line-height: 1;
    color: var(--ink);
}
.uc-display em, .uc-display .em {
    font-style: italic;
    font-weight: 400;
    color: var(--terracotta);
}

.uc-lede {
    font-family: var(--serif);
    font-weight: 350;
    font-size: 19px;
    line-height: 1.5;
    color: var(--ink-soft);
}

.uc-text-mute { color: var(--ink-mute); }
.uc-text-soft { color: var(--ink-soft); }

/* ===== Buttons ===== */
.uc-btn {
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.2px;
    padding: 14px 28px;
    border-radius: var(--r-pill);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform var(--t-med), background var(--t-fast), color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    line-height: 1;
    -webkit-tap-highlight-color: transparent;
}
.uc-btn:disabled { opacity: 0.55; cursor: not-allowed; }

.uc-btn-primary { background: var(--ink); color: var(--paper); }
.uc-btn-primary:hover:not(:disabled) { background: var(--terracotta); transform: translateY(-2px); }

.uc-btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.uc-btn-ghost:hover:not(:disabled) { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

.uc-btn-soft { background: var(--paper-deep); color: var(--ink); }
.uc-btn-soft:hover:not(:disabled) { background: var(--paper-rule); }

.uc-btn-terracotta { background: var(--terracotta); color: white; }
.uc-btn-terracotta:hover:not(:disabled) { background: var(--terracotta-deep); transform: translateY(-2px); }

.uc-btn-arrow { display: inline-block; transition: transform var(--t-med); }
.uc-btn:hover .uc-btn-arrow { transform: translateX(4px); }

.uc-btn-sm { padding: 10px 18px; font-size: 13px; }
.uc-btn-lg { padding: 18px 36px; font-size: 16px; }
.uc-btn-block { width: 100%; }

/* ===== Form fields ===== */
.uc-field { display: block; margin-bottom: 16px; }
.uc-field-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-soft);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}
.uc-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--paper);
    border: 1px solid var(--paper-rule);
    border-radius: var(--r);
    color: var(--ink);
    font-size: 15px;
    font-family: var(--sans);
    outline: none;
    transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}
.uc-input:focus {
    border-color: var(--ink);
    box-shadow: 0 0 0 4px rgba(26, 20, 16, 0.06);
    background: var(--paper);
}
.uc-input::placeholder { color: var(--ink-mute); }
.uc-input-wrap { position: relative; }
.uc-input-suffix {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--ink-mute);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
}
.uc-input-suffix:hover { color: var(--ink); }

/* ===== Card ===== */
.uc-card {
    background: var(--paper);
    border: 1px solid var(--paper-rule);
    border-radius: var(--r);
    padding: 24px;
}
.uc-card-elev {
    background: var(--paper);
    border-radius: var(--r);
    box-shadow: var(--shadow-card);
}

/* ===== Tabs ===== */
.uc-tabs {
    display: inline-flex;
    background: var(--paper-deep);
    border: 1px solid var(--paper-rule);
    border-radius: var(--r-pill);
    padding: 4px;
    gap: 2px;
}
.uc-tab {
    padding: 9px 20px;
    border: none;
    background: transparent;
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-mute);
    border-radius: var(--r-pill);
    cursor: pointer;
    transition: color var(--t-fast), background var(--t-fast);
}
.uc-tab:hover:not(.is-active) { color: var(--ink); }
.uc-tab.is-active {
    background: var(--ink);
    color: var(--paper);
}

/* ===== Inline message ===== */
.uc-message {
    padding: 12px 16px;
    border-radius: var(--r);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
    display: none;
    align-items: center;
    gap: 10px;
    border: 1px solid transparent;
}
.uc-message.is-error {
    display: flex;
    background: rgba(193, 84, 45, 0.08);
    border-color: rgba(193, 84, 45, 0.3);
    color: var(--terracotta-deep);
}
.uc-message.is-success {
    display: flex;
    background: rgba(90, 106, 48, 0.08);
    border-color: rgba(90, 106, 48, 0.3);
    color: var(--olive);
}

/* ===== Spinner ===== */
.uc-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: uc-spin 0.7s linear infinite;
    display: inline-block;
}
@keyframes uc-spin { to { transform: rotate(360deg); } }

/* ===== Divider ===== */
.uc-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 18px 0;
    color: var(--ink-mute);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}
.uc-divider::before, .uc-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--paper-rule);
}

/* ===== Reveal animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal.in {
    opacity: 1;
    transform: none;
}
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal-stagger.in > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: 0.12s; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: 0.20s; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: 0.28s; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: 0.36s; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: 0.44s; }
.reveal-stagger.in > *:nth-child(7) { transition-delay: 0.52s; }
.reveal-stagger.in > *:nth-child(8) { transition-delay: 0.60s; }
.reveal-stagger.in > * { opacity: 1; transform: none; }

/* ===== Nav (top bar, used by inner pages with topbar layout) ===== */
.uc-topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    background: rgba(250, 246, 238, 0.85);
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    border-bottom: 1px solid var(--paper-rule);
}

.uc-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ink);
}
.uc-brand img { height: 30px; width: auto; }
.uc-brand-mark {
    font-family: var(--serif);
    font-weight: 600;
    font-style: italic;
    font-size: 22px;
    letter-spacing: -0.5px;
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}