/* ============================================
   BUSCAMINAS — Estilos principales
   Tema terminal retro (verde sobre negro)
   ============================================ */

/* Fuentes externas de Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=VT323&display=swap');

/* ============================================
   RESET Y BODY
   Evita la franja blanca en la parte inferior
   y establece el fondo oscuro base
   ============================================ */
body {
    margin: 0;
    background: #0a0f0a;
    min-height: 100vh;
}

/* ============================================
   FOOTER
   Información del desarrollador con enlaces
   a GitHub y LinkedIn
   ============================================ */
.ms-footer {
    font-family: 'Share Tech Mono', monospace;
    text-align: center;
    padding: 24px 16px 20px;
    font-size: 12px;
    color: #1a8c1a;
    letter-spacing: 1px;
}

.ms-footer strong {
    color: #33ff33;
}

.ms-footer-links {
    margin-top: 6px;
}

.ms-footer-links a {
    color: #33ff33;
    text-decoration: none;
    transition: color 0.15s;
}

.ms-footer-links a:hover {
    color: #00ffcc;
    text-decoration: underline;
}

.ms-footer-sep {
    margin: 0 8px;
    color: #1a4a1a;
}

/* ============================================
   CONTENEDOR PRINCIPAL (.ms-root)
   Envuelve todo el juego, incluye efecto
   scanline para look retro
   ============================================ */
.ms-root {
    font-family: 'Share Tech Mono', monospace;
    background: #0a0f0a;
    color: #33ff33;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #1a2e1a;
    position: relative;
    -webkit-touch-callout: none;
}

/* ============================================
   HEADER Y SUBHEADER
   Título y subtítulo del juego
   ============================================ */
.ms-header {
    font-family: 'VT323', monospace;
    font-size: 28px;
    color: #33ff33;
    letter-spacing: 4px;
    text-align: center;
    margin-bottom: 4px;
    text-shadow: 0 0 8px #00ff0044;
}

.ms-subheader {
    font-size: 11px;
    color: #1a8c1a;
    text-align: center;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

/* ============================================
   HUD (Heads-Up Display)
   Barra superior con minas restantes,
   botón de reinicio y temporizador
   ============================================ */
.ms-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0d150d;
    border: 1px solid #1a4a1a;
    padding: 8px 14px;
    border-radius: 4px;
    margin-bottom: 14px;
    font-size: 13px;
}

.ms-hud-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.ms-hud-label {
    font-size: 9px;
    color: #1a8c1a;
    letter-spacing: 1px;
}

.ms-hud-val {
    font-family: 'VT323', monospace;
    font-size: 26px;
    color: #33ff33;
    line-height: 1;
}

/* Temporizador en rojo cuando se pierde */
.ms-hud-val.red {
    color: #ff3333;
}

/* ============================================
   BOTÓN DE REINICIO
   ============================================ */
.ms-restart-btn {
    font-family: 'VT323', monospace;
    font-size: 20px;
    background: #0d150d;
    border: 1px solid #1a4a1a;
    color: #33ff33;
    padding: 4px 16px;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: 2px;
    transition: all 0.15s;
}

.ms-restart-btn:hover {
    background: #1a2e1a;
    border-color: #33ff33;
}

/* ============================================
   SELECTOR DE DIFICULTAD
   Fila de botones para cambiar la dificultad
   ============================================ */
.ms-diff-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    justify-content: center;
}

.ms-diff-btn {
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    background: #0d150d;
    border: 1px solid #1a3a1a;
    color: #1a8c1a;
    padding: 4px 12px;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.15s;
}

.ms-diff-btn:hover,
.ms-diff-btn.active {
    background: #1a2e1a;
    color: #33ff33;
    border-color: #33ff33;
}

/* ============================================
   GRID Y CELDAS
   Tablero de juego y sus celdas individuales
   El tamaño de celda se calcula dinámicamente
   en JS según el viewport
   ============================================ */
.ms-grid-wrap {
    overflow-x: auto;
    display: flex;
    justify-content: center;
    -webkit-overflow-scrolling: touch;
}

.ms-grid {
    display: inline-grid;
    gap: 2px;
    background: #060c06;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #1a3a1a;
}

.ms-cell {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'VT323', monospace;
    font-size: 17px;
    cursor: pointer;
    border-radius: 2px;
    transition: background 0.1s;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    border: 1px solid;
}

/* Estados de celda */

/* Celda sin revelar */
.ms-cell.hidden {
    background: #0d1f0d;
    border-color: #1a4a1a;
    color: #33ff33;
}

.ms-cell.hidden:hover {
    background: #152815;
    border-color: #33ff33;
}

/* Celda ya revelada (vacía o con número) */
.ms-cell.revealed {
    background: #060c06;
    border-color: #0a180a;
    cursor: default;
}

/* Celda marcada con bandera */
.ms-cell.flagged {
    background: #0d1f0d;
    border-color: #cc7700;
    color: #ffaa00;
}

/* Mina que explotó (la que se clickeó) */
.ms-cell.mine-hit {
    background: #3a0000;
    border-color: #ff3333;
    color: #ff3333;
}

/* Minas reveladas al perder (no explotadas) */
.ms-cell.mine-show {
    background: #060c06;
    border-color: #550000;
    color: #cc2222;
}

/* ============================================
   COLORES POR NÚMERO DE ADYACENTES
   Cada número tiene un color diferente
   ============================================ */
.ms-cell.n1 { color: #33ff33; }
.ms-cell.n2 { color: #00ffcc; }
.ms-cell.n3 { color: #ff9933; }
.ms-cell.n4 { color: #3399ff; }
.ms-cell.n5 { color: #ff4444; }
.ms-cell.n6 { color: #aa88ff; }
.ms-cell.n7 { color: #ff66cc; }
.ms-cell.n8 { color: #888888; }

/* ============================================
   BARRA DE ESTADO
   Texto informativo en la parte inferior
   ============================================ */
.ms-status {
    text-align: center;
    margin-top: 12px;
    font-size: 12px;
    letter-spacing: 2px;
    min-height: 18px;
    color: #1a8c1a;
}

.ms-status.win {
    color: #33ff33;
}

.ms-status.lose {
    color: #ff3333;
}

/* ============================================
   EFECTO SCANLINE
   Líneas horizontales sobre el contenedor
   para simular una pantalla CRT retro
   ============================================ */
.ms-scanline {
    position: relative;
    overflow: hidden;
}

.ms-scanline::after {
    content: '';
    pointer-events: none;
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(transparent 0px, transparent 3px, rgba(0, 0, 0, 0.10) 3px, rgba(0, 0, 0, 0.10) 4px);
    border-radius: 8px;
}

/* ============================================
   ANIMACIONES DE EXPLOSIÓN DE MINAS
   Se aplican con retraso escalonado según
   la distancia a la mina activada
   ============================================ */

/* Animación de la mina que explota: escala + destello rojo */
@keyframes mineExplode {
    0% {
        transform: scale(0);
        opacity: 0;
        background: #ff3333;
        box-shadow: 0 0 12px #ff3333;
    }
    40% {
        transform: scale(1.4);
        opacity: 1;
        background: #5a0000;
        box-shadow: 0 0 8px #ff333388;
    }
    100% {
        transform: scale(1);
        opacity: 1;
        background: #3a0000;
        box-shadow: none;
    }
}

/* Animación de las demás minas: escala + rotación */
@keyframes mineShowReveal {
    0% {
        transform: scale(0) rotate(90deg);
        opacity: 0;
    }
    60% {
        transform: scale(1.2) rotate(-10deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

.ms-cell.mine-hit.animating {
    animation: mineExplode 0.5s ease-out forwards;
}

.ms-cell.mine-show.animating {
    animation: mineShowReveal 0.4s ease-out forwards;
    opacity: 0;
}

/* ============================================
   OVERLAY DE GAME OVER / VICTORIA
   Pantalla oscura que cubre el tablero
   al ganar o perder
   ============================================ */
.ms-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    z-index: 10;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    backdrop-filter: blur(2px);
}

.ms-overlay.visible {
    display: flex;
}

/* Título del overlay (GAME OVER / VICTORIA) */
.ms-overlay-title {
    font-family: 'VT323', monospace;
    font-size: 42px;
    letter-spacing: 6px;
    margin-bottom: 8px;
    text-shadow: 0 0 20px currentColor;
}

.ms-overlay-title.lose {
    color: #ff3333;
}

.ms-overlay-title.win {
    color: #33ff33;
}

/* Subtítulo del overlay */
.ms-overlay-sub {
    font-family: 'Share Tech Mono', monospace;
    font-size: 13px;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.ms-overlay-sub.lose {
    color: #cc4444;
}

.ms-overlay-sub.win {
    color: #1a8c1a;
}

/* Botón de reinicio dentro del overlay */
.ms-overlay-btn {
    font-family: 'VT323', monospace;
    font-size: 22px;
    background: transparent;
    border: 2px solid;
    padding: 8px 28px;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 3px;
    transition: all 0.2s;
}

.ms-overlay-btn.lose {
    color: #ff3333;
    border-color: #ff3333;
}

.ms-overlay-btn.lose:hover {
    background: #ff333322;
    box-shadow: 0 0 16px #ff333344;
}

.ms-overlay-btn.win {
    color: #33ff33;
    border-color: #33ff33;
}

.ms-overlay-btn.win:hover {
    background: #33ff3322;
    box-shadow: 0 0 16px #33ff3344;
}

/* ============================================
   ANIMACIONES DEL OVERLAY
   Entrada escalonada de título, subtítulo
   y botón del overlay
   ============================================ */
@keyframes overlayFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes overlayTitlePop {
    0% { transform: scale(0.5); opacity: 0; }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.ms-overlay.visible {
    animation: overlayFadeIn 0.3s ease-out;
}

.ms-overlay-title {
    animation: overlayTitlePop 0.5s ease-out 0.2s both;
}

.ms-overlay-sub {
    animation: overlayFadeIn 0.4s ease-out 0.5s both;
}

.ms-overlay-btn {
    animation: overlayFadeIn 0.4s ease-out 0.7s both;
}

/* Feedback táctil al presionar una celda oculta */
.ms-cell.hidden:active {
    background: #152815;
    border-color: #33ff33;
}

/* Indicador visual de long press (sin uso actualmente) */
.ms-longpress-indicator {
    position: absolute;
    width: 6px;
    height: 6px;
    background: #ffaa00;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
}

.ms-longpress-indicator.active {
    opacity: 1;
}

/* ============================================
   MEDIA QUERIES — MÓVIL (max 600px)
   Ajustes de tamaño para pantallas pequeñas
   ============================================ */
@media (max-width: 600px) {
    .ms-root {
        padding: 0.6rem;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .ms-header {
        font-size: 20px;
        letter-spacing: 2px;
        margin-bottom: 2px;
    }

    .ms-subheader {
        font-size: 9px;
        letter-spacing: 1px;
        margin-bottom: 10px;
    }

    .ms-hud {
        padding: 6px 10px;
        margin-bottom: 10px;
        font-size: 11px;
    }

    .ms-hud-val {
        font-size: 22px;
    }

    .ms-hud-label {
        font-size: 8px;
    }

    .ms-restart-btn {
        font-size: 16px;
        padding: 4px 10px;
    }

    .ms-diff-row {
        gap: 4px;
        margin-bottom: 10px;
        flex-wrap: wrap;
    }

    .ms-diff-btn {
        font-size: 10px;
        padding: 6px 8px;
        flex: 1;
        min-width: 0;
        text-align: center;
    }

    .ms-grid {
        gap: 1px;
        padding: 4px;
    }

    .ms-cell {
        font-size: 14px;
    }

    .ms-status {
        font-size: 9px;
        letter-spacing: 1px;
        margin-top: 8px;
    }

    .ms-overlay-title {
        font-size: 30px;
        letter-spacing: 4px;
    }

    .ms-overlay-sub {
        font-size: 11px;
        letter-spacing: 2px;
        text-align: center;
        padding: 0 1rem;
    }

    .ms-overlay-btn {
        font-size: 18px;
        padding: 8px 22px;
    }

    .ms-footer {
        padding: 16px 12px 14px;
        font-size: 10px;
    }
}

/* ============================================
   MEDIA QUERIES — PANTALLAS MUY PEQUEÑAS (max 380px)
   Ajustes adicionales para teléfonos compactos
   ============================================ */
@media (max-width: 380px) {
    .ms-header {
        font-size: 17px;
    }

    .ms-diff-btn {
        font-size: 9px;
        padding: 5px 6px;
    }
}