/* =========================================================
   PI-ADM — BASE CSS
   Estilos compartidos entre todos los módulos del proyecto
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

/* =========================================
   RESET + VARIABLES
   ========================================= */
:root {
    --color-bg:         #000000;
    --color-surface:    #0a0a0a;
    --color-surface-2:  #111111;
    --color-surface-3:  #141414;
    --color-border:     #222222;
    --color-border-2:   #333333;
    --color-text:       #ffffff;
    --color-text-muted: #888888;
    --color-text-dim:   #444444;

    --color-green:      #4ade80;
    --color-green-glow: rgba(74, 222, 128, 0.8);
    --color-red:        #ff4444;
    --color-red-glow:   rgba(255, 68, 68, 0.6);
    --color-blue:       #3498db;
    --color-yellow:     #f1c40f;

    --radius-sm:  5px;
    --radius-md:  8px;
    --radius-lg:  12px;

    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', Roboto, Arial, sans-serif;
}

body {
    min-height: 100vh;
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: 20px;
    padding-left: env(safe-area-inset-left, 20px);
    padding-right: env(safe-area-inset-right, 20px);
}

/* =========================================
   CONTENEDOR PRINCIPAL
   ========================================= */
.pi-panel {
    width: 100%;
    max-width: 500px;
    background: var(--color-surface);
    padding: 35px 28px;
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 35px rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    position: relative;
    margin: 0 auto;
}

.pi-panel--wide {
    max-width: 640px;
}

/* =========================================
   TIPOGRAFÍA
   ========================================= */
.pi-title {
    text-align: center;
    margin-bottom: 28px;
    font-weight: 300;
    letter-spacing: 4px;
    font-size: 1.4rem;
    text-transform: uppercase;
    color: var(--color-text);
}

/* =========================================
   NAVEGACIÓN POR PESTAÑAS
   ========================================= */
.pi-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 22px;
}

.pi-tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border-2);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition);
}

.pi-tab:hover { border-color: #555; }
.pi-tab.active { background: var(--color-text); color: var(--color-bg); border-color: var(--color-text); }

/* =========================================
   BOTONES
   ========================================= */
.pi-btn {
    display: block;
    width: 100%;
    text-align: center;
    text-decoration: none;
    padding: 15px;
    border-radius: var(--radius-md);
    background-color: var(--color-surface-3);
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 1px;
    transition: var(--transition);
    border: 1px solid var(--color-border-2);
    cursor: pointer;
    font-family: inherit;
    user-select: none;
    -webkit-user-select: none;
}

.pi-btn:hover,
.pi-btn:active {
    background-color: var(--color-text);
    color: var(--color-bg);
    transform: translateY(-2px);
    border-color: var(--color-text);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.12);
}

.pi-btn:active { transform: translateY(0); }

.pi-btn--primary {
    background-color: var(--color-text);
    color: var(--color-bg);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: none;
}
.pi-btn--primary:hover { background-color: #cccccc; }

.pi-btn--back {
    margin-top: 28px;
    font-size: 0.8rem;
    letter-spacing: 1px;
    color: var(--color-text-muted);
}

/* =========================================
   TARJETAS / PANELES DE DATOS
   ========================================= */
.pi-card {
    background: var(--color-surface-2);
    border: 1px solid var(--color-border-2);
    border-radius: var(--radius-md);
    padding: 18px;
    margin-bottom: 14px;
    transition: var(--transition);
}

.pi-card:hover { border-color: #444; }

.pi-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.pi-card__value {
    font-size: 1.7rem;
    font-weight: 300;
    color: var(--color-text);
}

/* =========================================
   FORMULARIOS
   ========================================= */
.pi-form-group {
    background: var(--color-surface-2);
    padding: 15px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-2);
    margin-bottom: 20px;
}

.pi-input,
.pi-textarea,
.pi-select {
    width: 100%;
    padding: 11px;
    background: #050505;
    border: 1px solid var(--color-border-2);
    color: var(--color-text);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    outline: none;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.3s;
}

.pi-input:focus,
.pi-textarea:focus { border-color: var(--color-text); }

::-webkit-calendar-picker-indicator { filter: invert(1); cursor: pointer; }

/* =========================================
   BARRA DE PROGRESO
   ========================================= */
.pi-bar {
    width: 100%;
    height: 6px;
    background-color: #222;
    border-radius: 3px;
    overflow: hidden;
    margin-top: 10px;
}

.pi-bar__fill {
    height: 100%;
    background-color: var(--color-text);
    border-radius: 3px;
    transition: width 0.8s ease;
}

/* =========================================
   TERMINAL / CÓDIGO
   ========================================= */
.pi-terminal {
    background-color: #050505;
    border: 1px solid var(--color-border);
    padding: 14px;
    border-radius: 6px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.78rem;
    color: #a3a3a3;
    overflow-x: auto;
    white-space: pre-wrap;
    line-height: 1.5;
}

/* =========================================
   INDICADORES DE ESTADO
   ========================================= */
.pi-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}

.pi-dot--green {
    background-color: var(--color-green);
    box-shadow: 0 0 8px var(--color-green-glow);
    animation: pi-pulse 2s infinite;
}

.pi-dot--red {
    background-color: var(--color-red);
    box-shadow: 0 0 8px var(--color-red-glow);
}

.pi-dot--off {
    background-color: #333;
    box-shadow: 0 0 4px #1a1a1a;
}

@keyframes pi-pulse {
    0%   { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7); }
    70%  { transform: scale(1);    box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* =========================================
   COLORES DE TEXTO DE UTILIDAD
   ========================================= */
.text-green  { color: var(--color-green); }
.text-red    { color: var(--color-red); }
.text-muted  { color: var(--color-text-muted); }
.text-dim    { color: var(--color-text-dim); }
.text-mono   { font-family: 'Courier New', monospace; }

/* =========================================
   RESPONSIVE
   ========================================= */

/* Móvil grande: iPhone 14, Pixel, etc. (≤ 430px) */
@media (max-width: 430px) {
    .pi-panel {
        padding: 28px 16px 20px;
    }

    /* Tabs: menos gap, menos padding y sin letter-spacing
       para que las 3 quepan en ~358px de ancho útil */
    .pi-tabs {
        gap: 6px;
    }

    .pi-tab {
        padding: 9px 4px;
        font-size: 0.65rem;
        letter-spacing: 0;
    }

    .pi-title  { font-size: 1.2rem; }
    .pi-btn    { font-size: 0.95rem; padding: 13px; }
}

/* Móvil pequeño (≤ 380px) */
@media (max-width: 380px) {
    .pi-panel { padding: 22px 12px 16px; }
    .pi-tab   { font-size: 0.6rem; padding: 8px 3px; }
    .pi-btn   { font-size: 0.9rem; padding: 12px; }
}