/* ═══════════════════════════════════════════════════════════════════════════
   FERRÓN DS — Ferrous Design System
   FER · Sistema Biométrico de Control de Acceso
   Version 1.0 · Bio-Organic Dark Theme
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&family=Sora:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* ─── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }

/* ─── FERRÓN DS Color Tokens ────────────────────────────────────────────── */
:root {
    /* Fondos — Surface Architecture */
    --bg-void:          #080B0F;
    --bg-surface:       #111418;
    --bg-raised:        #1D2024;
    --bg-elevated:      #272A2F;
    --bg-overlay:       #32353A;
    --bg-glass:         rgba(17, 20, 24, 0.85);

    /* Acento Primario: Ámbar Biométrico */
    --amber:            #FF9500;
    --amber-hot:        #FFAD33;
    --amber-dim:        #CC7800;
    --amber-ghost:      rgba(255, 149, 0, 0.10);
    --amber-border:     rgba(255, 149, 0, 0.30);
    --amber-glow:       0 0 20px rgba(255, 149, 0, 0.40), 0 0 60px rgba(255, 149, 0, 0.12);
    --amber-ambient:    0px 20px 40px rgba(255, 149, 0, 0.06);

    /* Acento Secundario: Cyan Técnico */
    --cyan:             #00D9FF;
    --cyan-mid:         #0099B8;
    --cyan-ghost:       rgba(0, 217, 255, 0.08);
    --cyan-glow:        0 0 15px rgba(0, 217, 255, 0.30), 0 0 40px rgba(0, 217, 255, 0.10);

    /* Estados */
    --success:          #00E676;
    --success-ghost:    rgba(0, 230, 118, 0.12);
    --warning:          #FFD600;
    --warning-ghost:    rgba(255, 214, 0, 0.12);
    --error:            #FF3D71;
    --error-ghost:      rgba(255, 61, 113, 0.12);
    --info:             #00D9FF;

    /* Texto */
    --text-primary:     #E1E2E8;
    --text-secondary:   #DBC2AD;
    --text-muted:       #8899AA;
    --text-disabled:    #4A5568;
    --text-inverse:     #080B0F;

    /* Bordes */
    --border-subtle:    rgba(255, 255, 255, 0.05);
    --border-default:   rgba(255, 255, 255, 0.10);
    --border-strong:    rgba(255, 255, 255, 0.20);
    --border-ghost:     rgba(85, 67, 52, 0.20);   /* outline_variant at low opacity */

    /* Tipografía */
    --font-display:     'DM Mono', 'JetBrains Mono', monospace;
    --font-body:        'Plus Jakarta Sans', 'Sora', sans-serif;
    --font-data:        'DM Mono', monospace;

    /* Escala tipográfica */
    --text-xs:          0.75rem;    /* 12px */
    --text-sm:          0.875rem;   /* 14px */
    --text-base:        1rem;       /* 16px */
    --text-lg:          1.125rem;   /* 18px */
    --text-xl:          1.25rem;    /* 20px */
    --text-2xl:         1.5rem;     /* 24px */
    --text-3xl:         1.875rem;   /* 30px */
    --text-display:     3rem;       /* 48px — KPIs */

    /* Espaciado (4px grid) */
    --s1:   4px;   --s2:   8px;   --s3:  12px;
    --s4:  16px;   --s5:  20px;   --s6:  24px;
    --s8:  32px;   --s10: 40px;   --s12: 48px;
    --s16: 64px;   --s20: 80px;

    /* Border radius */
    --radius-sm:   4px;
    --radius:      8px;
    --radius-md:   12px;
    --radius-lg:   16px;
    --radius-xl:   24px;
    --radius-full: 9999px;

    /* Transiciones */
    --ease:         cubic-bezier(0.16, 1, 0.3, 1);   /* Expo Out — snappy high-tech */
    --ease-spring:  cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Gradientes */
    --gradient-hero:
        linear-gradient(135deg, #080B0F 0%, #0D1520 40%, #0A1A28 70%, #080B0F 100%);
    --gradient-card-active:
        linear-gradient(145deg, rgba(255,149,0,0.07) 0%, rgba(29,32,36,0.95) 100%);
    --gradient-bio-cta:
        linear-gradient(135deg, #FF9500 0%, #6A3B00 100%);
    --gradient-mesh:
        radial-gradient(ellipse at 20% 20%, rgba(0,217,255,0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(255,149,0,0.05) 0%, transparent 50%);

    /* Layout */
    --header-h:  60px;
    --sidebar-w: 240px;
    --sidebar-collapsed: 64px;
    --dock-h:    72px;
}

/* ─── Base HTML ─────────────────────────────────────────────────────────── */
body {
    font-family:      var(--font-body);
    font-size:        var(--text-base);
    color:            var(--text-primary);
    background-color: var(--bg-void);
    background-image: var(--gradient-mesh);
    background-attachment: fixed;
    line-height:      1.6;
    min-height:       100vh;
    overflow-x:       hidden;
}

/* ─── Animations ─────────────────────────────────────────────────────────── */
@keyframes pageEnter {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes cardReveal {
    from { opacity: 0; transform: scale(0.95) translateY(8px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes scanLine {
    0%   { top: 5%; opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { top: 95%; opacity: 0; }
}
@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(255,149,0,0.25); }
    50%       { box-shadow: 0 0 40px rgba(255,149,0,0.60); }
}
@keyframes shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position:  200% 0; }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes successPop {
    0%   { transform: scale(0.5); opacity: 0; }
    70%  { transform: scale(1.08); }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes bioPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50%       { opacity: 1;   transform: scale(1.02); }
}
@keyframes dotScanner {
    0%, 100% { opacity: 0.3; }
    50%       { opacity: 1; }
}

.page-enter { animation: pageEnter 0.4s var(--ease) both; }

/* ─── Scrollbar ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--amber-border); }

/* ─── Skeleton Loader ────────────────────────────────────────────────────── */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-surface) 25%,
        var(--bg-raised) 50%,
        var(--bg-surface) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius);
}

/* ─── Utility Classes ────────────────────────────────────────────────────── */
.text-amber    { color: var(--amber); }
.text-cyan     { color: var(--cyan); }
.text-success  { color: var(--success); }
.text-error    { color: var(--error); }
.text-warning  { color: var(--warning); }
.text-muted    { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-mono     { font-family: var(--font-data); }
.text-display  { font-family: var(--font-display); }
.text-xs  { font-size: var(--text-xs); }
.text-sm  { font-size: var(--text-sm); }
.text-lg  { font-size: var(--text-lg); }
.text-xl  { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.uppercase { text-transform: uppercase; letter-spacing: 0.08em; }

.bg-surface  { background: var(--bg-surface); }
.bg-raised   { background: var(--bg-raised); }
.bg-glass    { background: var(--bg-glass); backdrop-filter: blur(24px); }

.glow-amber  { box-shadow: var(--amber-glow); }
.glow-cyan   { box-shadow: var(--cyan-glow); }
.glow-pulse  { animation: glowPulse 2.5s ease-in-out infinite; }

.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-2  { gap: var(--s2); }
.gap-3  { gap: var(--s3); }
.gap-4  { gap: var(--s4); }
.gap-6  { gap: var(--s6); }
.w-full { width: 100%; }
.relative { position: relative; }
.hidden   { display: none; }
.rounded  { border-radius: var(--radius); }
.rounded-full { border-radius: var(--radius-full); }
.overflow-hidden { overflow: hidden; }

/* ─── Breakpoints ────────────────────────────────────────────────────────── */
/* sm: 640px | md: 768px | lg: 1024px | xl: 1280px | 2xl: 1440px */