/* ===== VARIABLES DE TEMA (SOLO MODO OSCURO) ===== */
:root {
    /* Colores Base */
    --bg-dark: #1a1a1a;
    --bg-card: #252525;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a8;
    --border-color: #3a3a3a;
    --accent-green: #28a745;
    --accent-yellow: #ffff00;
    --accent-red: #ff0000;
    --accent-blue: #0d6efd;
    --border-radius: 8px;

    /* Gradientes */
    --gradient-green: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    --gradient-blue: linear-gradient(135deg, #0d6efd 0%, #0dcaf0 100%);
    --gradient-red: linear-gradient(135deg, #ff0000 0%, #ff4444 100%);
    --gradient-yellow: linear-gradient(135deg, #ffff00 0%, #ffd700 100%);
    --gradient-gray: linear-gradient(135deg, #40404a 0%, #5a5a64 100%);

    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.4);

    /* Transiciones */
    --timing-fast: 0.2s;
    --timing-medium: 0.4s;
    --timing-slow: 0.6s;
}

/* --- Estilos Generales --- */
* {
    box-sizing: border-box;
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
        sans-serif;
    margin: 0;
    padding: 15px;
    background-color: var(--bg-dark);
    transition: background-color var(--timing-medium) ease,
                color var(--timing-medium) ease;
}

/* --- Panel de Control --- */
.control-panel {
    color: var(--text-primary);
    max-width: 750px;
    margin: 10px auto;
    transition: color var(--timing-medium) ease;
}

.logo-container {
    text-align: center;
    margin-bottom: 15px;
}

.logo-container img {
    max-width: 220px;
    filter: brightness(0) invert(1) opacity(0.8);
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--timing-medium) ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
    font-size: 0.95em;
    color: var(--text-secondary);
    transition: color var(--timing-medium) ease;
}

input[type="text"] {
    width: 100%;
    padding: 8px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    font-size: 0.9em;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus {
    border-color: var(--accent-blue);
    outline: none;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25);
}

input[type="text"]:hover {
    border-color: var(--accent-blue);
}

.input-with-button {
    display: flex;
    gap: 10px;
}

.input-with-button input {
    flex-grow: 1;
}

.input-with-button button {
    flex-shrink: 0;
    background: var(--gradient-blue);
}

/* ---- Bloque del Tiempo (doble tamaño + centrado) ---- */
.form-group.highlight-input {
    padding: 10px;
    border-radius: var(--border-radius);
    text-align: center;
}

.form-group.highlight-input label {
    font-size: 1.05em;
}

.form-group.highlight-input #time-input {
    font-size: 4.4em;
    line-height: 1.1;
    padding: 18px 16px;
    text-align: center;
    max-width: 520px;
    margin: 8px auto 0;
    font-weight: 700;
    background: var(--bg-card);
    transition: all var(--timing-fast) ease;
}

.form-group.highlight-input #time-input:focus {
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.3);
}

/* Controles y botones */
.time-adjust,
.message-controls,
.preset-controls,
.view-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.message-controls {
    justify-content: flex-start;
}

.time-adjust {
    margin-top: 10px;
}

.view-controls,
.add-preset-form {
    margin-top: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

/* ===== BOTONES CON GRADIENTES - SIN ANIMACIONES ===== */
button {
    padding: 8px 15px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.85em;
    font-weight: bold;
    background: var(--gradient-gray);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    transition: background 0.2s ease, opacity 0.2s ease;
}

button:hover {
    opacity: 0.85;
}

button:active {
    opacity: 0.7;
}

/* Animación de pulso para botones importantes */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.timer-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 15px 0;
}

.timer-controls button {
    padding: 12px;
    font-size: 0.9em;
}

/* Botones específicos con gradientes */
.go {
    background: var(--gradient-green);
    animation: pulse 2s infinite;
}

#pause-btn {
    background: var(--gradient-yellow);
    color: #1e1e24;
}

.resume {
    background: var(--gradient-blue);
}

.reset {
    background: var(--gradient-red);
}

#hide-message-btn,
#view-toggle-btn {
    background: var(--gradient-gray);
}

h1 {
    font-size: 1.6em;
    letter-spacing: 1px;
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 20px;
    transition: color var(--timing-medium) ease;
}

h2 {
    font-size: 1.1em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
    text-align: center;
    color: var(--text-primary);
    transition: all var(--timing-medium) ease;
}

#preset-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 180px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

/* Estilos para scrollbar en navegadores Webkit */
#preset-list::-webkit-scrollbar {
    width: 6px;
}

#preset-list::-webkit-scrollbar-track {
    background: transparent;
}

#preset-list::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

#preset-list::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

#preset-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    background-color: var(--bg-dark);
    border-radius: var(--border-radius);
    margin-bottom: 5px;
    transition: background-color 0.2s ease;
    box-shadow: var(--shadow-sm);
}

#preset-list li:hover {
    background-color: #2a2a2a;
}

.preset-info {
    cursor: pointer;
    flex-grow: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

#preset-list li .preset-time {
    font-weight: bold;
    font-size: 1.1em;
    color: var(--text-primary);
    transition: color var(--timing-medium) ease;
}

.preset-note-input {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    flex-grow: 1;
    font-size: 0.9em;
    transition: all var(--timing-fast) ease;
}

.preset-note-input:not(:read-only) {
    background: var(--bg-card);
    border: 1px solid var(--accent-blue);
}

.preset-actions button {
    font-size: 0.8em;
    padding: 4px 8px;
    background: var(--gradient-gray);
}

.delete-preset-btn {
    background: none !important;
    color: var(--accent-red);
    font-size: 1.4em;
    font-weight: bold;
    padding: 0 8px;
    box-shadow: none !important;
    transition: opacity 0.2s ease;
}

.delete-preset-btn:hover {
    opacity: 0.7;
}

.edit-preset-btn.save-mode {
    background: var(--gradient-green);
}

.message-controls .checkbox-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9em;
}

/* ===== INDICADOR DE SINCRONIZACIÓN ===== */
.sync-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 15px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85em;
    color: var(--text-secondary);
    z-index: 999;
    transition: all var(--timing-fast) ease;
}

.sync-indicator.online {
    border-color: var(--accent-green);
}

.sync-indicator.offline {
    border-color: var(--accent-red);
}

.sync-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: pulse-dot 2s infinite;
}

.sync-indicator.online .sync-dot {
    background: var(--accent-green);
}

.sync-indicator.offline .sync-dot {
    background: var(--accent-red);
}

@keyframes pulse-dot {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

/* --- Pantalla de Display --- */
#display-body {
    background-color: black;
    color: white;
    height: 100vh;
    margin: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    box-sizing: border-box;
}

#fullscreen-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 45px;
    color: white;
    opacity: 0.6;
    cursor: pointer;
    transition: all var(--timing-fast) ease;
    z-index: 2000;
}

#fullscreen-btn:hover {
    opacity: 1;
    transform: scale(1.2);
}

#event-name-display {
    text-align: center;
    font-size: 4vw;
    color: #ccc;
    font-weight: 600;
    padding-top: 5vh;
    transition: font-size var(--timing-medium) ease;
}

#main-content {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    min-height: 0;
}

#bottom-container {
    padding: 0 10vw;
    box-sizing: border-box;
    flex-shrink: 0;
}

#timer-display {
    font-size: 26vw;
    font-weight: bold;
    text-align: center;
    font-variant-numeric: tabular-nums;
    transition:
        color 0.5s ease,
        font-size 0.5s ease,
        text-shadow 0.3s ease;
}

#times-up-message {
    font-size: 5vw;
    font-weight: bold;
    color: white;
    display: none;
}

.progress-bar-container {
    position: relative;
    width: 100%;
    height: 75px;
    margin-top: 2vh;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: linear-gradient(
        to right,
        var(--accent-green) 65%,
        var(--accent-yellow) 65%,
        var(--accent-yellow) 90%,
        var(--accent-red) 90%
    );
    box-shadow: var(--shadow-md);
}

#date-time-display {
    text-align: center;
    font-size: 1.6vw;
    font-weight: 700;
    color: #555;
    padding: 20px 0;
    padding-bottom: 5vh;
    text-transform: uppercase;
}

#credit-text {
    position: fixed;
    bottom: 5px;
    right: 10px;
    font-size: 0.8vw;
    color: #333;
    opacity: 0.7;
    z-index: 2000;
}

#progress-bar-mask {
    position: absolute;
    left: 0;
    top: 0;
    width: 0%;
    height: 100%;
    background-color: #333;
    transition: width 1s linear;
}

#timer-display.text-yellow {
    color: var(--accent-yellow);
    text-shadow: 0 0 30px rgba(255, 255, 0, 0.5);
}

#timer-display.text-red {
    color: var(--accent-red);
    text-shadow: 0 0 40px rgba(255, 0, 0, 0.6);
}

/* Modos de Display */
#display-body.overtime-mode #bottom-container,
#display-body.clock-mode #bottom-container {
    display: none;
}

#display-body.clock-mode #times-up-message {
    display: none;
}

#display-body.overtime-mode #times-up-message {
    display: block;
}

#display-body.clock-mode #timer-display {
    font-size: 28vw;
}

#display-body.overtime-mode #timer-display {
    font-size: 25vw;
}

#display-body.overtime-style-1 {
    background-color: var(--accent-red);
}

#display-body.overtime-style-1 #times-up-message,
#display-body.overtime-style-1 #timer-display {
    color: white;
}

#display-body.overtime-style-2 {
    background-color: black;
}

#display-body.overtime-style-2 #times-up-message,
#display-body.overtime-style-2 #timer-display {
    color: var(--accent-red);
}

/* Estilos de Mensajes */
#message-display-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
    z-index: 1000;
}

#display-body.message-mode #message-display-container {
    opacity: 1;
    visibility: visible;
}

#message-display {
    font-size: 12vw;
    font-weight: bold;
    text-align: center;
    padding: 20px;
    color: white;
}

.flash-effect #message-display {
    animation: flash-text 1s infinite;
}

@keyframes flash-text {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

#session-id-display-overlay {
    position: fixed;
    bottom: 5px;
    left: 10px;
    font-size: 0.8vw;
    color: #333;
    opacity: 0.7;
    z-index: 2000;
}

/* ===== RESPONSIVE DESIGN PARA TABLETS ===== */
@media (max-width: 1024px) and (min-width: 768px) {
    .control-panel {
        max-width: 95%;
        padding-right: 70px;
    }

    .timer-controls {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .form-group.highlight-input #time-input {
        font-size: 3.5em;
        max-width: 100%;
    }

    .card {
        padding: 20px;
    }

    #theme-toggle {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }

    button {
        padding: 10px 18px;
        font-size: 0.95em;
    }

    .timer-controls button {
        padding: 16px;
        font-size: 1.1em;
    }
}

@media (max-width: 767px) {
    .control-panel {
        padding: 10px;
        /* La línea 'padding-right: 60px;' fue eliminada de aquí */
    }

    .form-group.highlight-input #time-input {
        font-size: 2.5em;
        padding: 12px 10px;
    }

    .timer-controls {
        grid-template-columns: 1fr;
    }


        width: 40px;
        height: 40px;
        font-size: 18px;
        top: 15px;
        right: 15px;
    }

    .logo-container img {
        max-width: 180px;
    }

    h1 {
        font-size: 1.3em;
    }

    .sync-indicator {
        bottom: 10px;
        right: 10px;
        font-size: 0.75em;
        padding: 8px 12px;
    }
}

/* Estilos adicionales del panel de control */
.header-control-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    background: var(--bg-card);
    padding: 12px 14px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
    transition: all var(--timing-medium) ease;
}

.session-id-compact {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    width: 100%; /* Ancho completo */
}

.session-id-compact label {
    font-weight: 700;
    color: var(--text-secondary);
    white-space: nowrap;
}

.session-id-compact input {
    flex: 1; /* Crece para ocupar espacio disponible */
    min-width: 200px;
    padding: 8px 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.95em;
    transition: all var(--timing-fast) ease;
}

.session-id-compact button {
    flex-shrink: 0; /* No reducir tamaño */
}

/* Contenedor del botón Display */
.display-link-container {
    margin-bottom: 15px;
}

.display-link-container a#open-display-link,
#open-display-link {
    display: block;
    width: 100%;
    padding: 15px;
    margin: 0;
    background: var(--gradient-blue);
    color: white;
    text-align: center;
    font-weight: bold;
    text-decoration: none;
    border-radius: var(--border-radius);
    box-sizing: border-box;
    box-shadow: var(--shadow-md);
    transition: opacity 0.2s ease;
}

.display-link-container a#open-display-link:hover,
#open-display-link:hover {
    opacity: 0.85;
}

/* Preview del display en el panel */
.live-timer-display {
    background: #000;
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    position: relative;
    border: 2px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.live-timer-status {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75em;
    font-weight: 700;
    background: #6c757d;
    color: #fff;
    z-index: 5;
    transition: all var(--timing-fast) ease;
}

.live-timer-status.running {
    background: var(--accent-green);
    animation: pulse 2s infinite;
}

.live-timer-status.paused {
    background: var(--accent-yellow);
    color: #1e1e24;
}

.live-timer-event {
    font-size: 1.2em;
    color: #ccc;
    margin-bottom: 10px;
    font-weight: 600;
}

.live-timer-time {
    font-size: 5em;
    font-weight: 800;
    color: #fff;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    margin: 14px 0;
}

.live-timer-clock {
    font-size: 5em;
    font-weight: 800;
    color: #fff;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    margin: 14px 0;
}

.live-timer-progress {
    margin-top: 12px;
    height: 10px;
    background: #333;
    border-radius: 5px;
    overflow: hidden;
    position: relative;
}

.live-timer-progress-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    background: linear-gradient(
        to right,
        #28a745 0%,
        #28a745 65%,
        #ffc107 65%,
        #ffc107 90%,
        #dc3545 90%
    );
}

.live-timer-progress-mask {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    background: #333;
    transition: width 1s linear;
}

.live-timer-message-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
    z-index: 10;
}

.live-timer-message-overlay.flash-effect {
    animation: flash-text-preview 1s infinite;
}

#live-timer-message-text {
    font-size: 1.5em;
    font-weight: 700;
    color: #fff;
    text-align: center;
}

@keyframes flash-text-preview {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

.message-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

#view-toggle-btn.btn-clock {
    background: var(--gradient-green) !important;
    color: #fff !important;
    border: none !important;
}

#view-toggle-btn.btn-clock:hover,
#view-toggle-btn.btn-clock:focus {
    filter: brightness(1.1);
}

#alert-banner {
    margin: 10px 0;
    padding: 10px 14px;
    border-radius: 8px;
    background: #b21f2d;
    color: #ffffff;
    border: 1px solid #721c24;
    font-weight: 600;
    display: none;
    box-shadow: var(--shadow-sm);
}

.keyboard-shortcuts-inline {
    background: var(--bg-card);
    padding: 10px 12px;
    border-radius: 8px;
    margin-top: 10px;
    font-size: 0.85em;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    transition: background var(--timing-medium) ease;
}

.keyboard-shortcuts-inline kbd {
    background: var(--gradient-gray);
    padding: 3px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    box-shadow: var(--shadow-sm);
}

.keyboard-shortcuts-inline span {
    color: var(--text-secondary);
}