/* style_clock.css */
:root {
    --background-color: #f4f7fa;
    --card-background: #ffffff;
    --text-color: #1a1a1a;
    --subtle-text-color: #5c5c5c;
    --primary-color: #007aff;
    --danger-color: #ff3b30;
    --border-color: #e9e9e9;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --fav-color: #ffc107;
}

/* Variables para el Modo Oscuro */
body.dark-mode {
    --background-color: #121212;
    --card-background: #1e1e1e;
    --text-color: #ffffff;
    --subtle-text-color: #a0a0a0;
    --border-color: #333333;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 2rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.helper-text {
    text-align: center;
    color: var(--subtle-text-color);
    margin-bottom: 2.5rem;
    display: none;
}
.remove-mode .helper-text {
    display: block;
}

#world-clock-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* --- FOOTER Y BOTONES --- */
.app-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-info {
    color: var(--subtle-text-color);
    font-size: 0.95rem;
}

.footer-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.footer-info a:hover {
    text-decoration: underline;
}

#add-city-btn, #manage-cities-btn, #theme-toggle-btn {
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease, color 0.3s ease;
}

#add-city-btn {
    background-color: var(--primary-color);
    color: white;
}
#add-city-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.2);
}

#manage-cities-btn {
    background-color: #e5e5e7;
    color: #1a1a1a;
}
body.dark-mode #manage-cities-btn {
    background-color: #333333;
    color: white;
}
#manage-cities-btn.active {
    background-color: var(--danger-color);
    color: white;
}

#theme-toggle-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}
#theme-toggle-btn:hover {
    background-color: var(--card-background);
    box-shadow: 0 2px 8px var(--shadow-color);
}

/* --- TARJETAS DE RELOJ --- */
.clock-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.3s ease, background-color 0.3s ease;
    min-width: 0;
    position: relative;
    order: 1;
}

.clock-card.is-favorite {
    order: -1;
    border: 2px solid var(--fav-color);
    box-shadow: 0 4px 12px rgba(255, 193, 7, 0.15);
}

.fav-icon {
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 1.5rem;
    color: #e0e0e0;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s, transform 0.2s;
    user-select: none;
}
body.dark-mode .fav-icon { color: #444; }

.fav-icon:hover {
    transform: scale(1.2);
}

.clock-card.is-favorite .fav-icon {
    color: var(--fav-color);
}

.remove-mode .clock-card .fav-icon {
    display: none;
}

.remove-icon {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 28px;
    height: 28px;
    background-color: var(--danger-color);
    color: white;
    border-radius: 50%;
    border: 2px solid white;
    display: none;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    z-index: 10;
}
body.dark-mode .remove-icon { border-color: #1e1e1e; }

.remove-mode .clock-card .remove-icon {
    display: flex;
}

.remove-mode .clock-card {
    animation: wiggle 0.5s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(-1deg); }
    50% { transform: rotate(1deg); }
}

.city-info {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    margin-top: 1rem;
}

.fi {
    font-size: 1.5rem;
    margin-right: 0.75rem;
    border-radius: 2px;
}

.city-name {
    font-size: 1.5rem;
    font-weight: 500;
}

.time {
    font-size: 4.5rem;
    font-weight: 700;
    letter-spacing: -2px;
    line-height: 1;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.date, .timezone-info {
    font-size: 0.9rem;
    color: var(--subtle-text-color);
    margin-top: 0.25rem;
}

/* Modal styles */
.modal { position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); display: flex; justify-content: center; align-items: center; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease; }
.modal.show { opacity: 1; visibility: visible; }
.modal-content { background-color: var(--card-background); color: var(--text-color); padding: 2rem; border-radius: 12px; width: 90%; max-width: 500px; text-align: center; transform: scale(0.95); transition: transform 0.3s ease, background-color 0.3s ease; }
.modal.show .modal-content { transform: scale(1); }
.close-btn { color: var(--subtle-text-color); float: right; font-size: 2rem; line-height: 1; cursor: pointer; transition: color 0.2s; }
.close-btn:hover { color: var(--text-color); }
#city-select { background-color: var(--background-color); color: var(--text-color); width: 100%; padding: 0.8rem; margin: 1.5rem 0; border-radius: 8px; border: 1px solid var(--border-color); font-size: 1rem; }
#add-selected-city-btn { background-color: var(--primary-color); color: white; padding: 0.8rem 1.5rem; border: none; border-radius: 8px; cursor: pointer; width: 100%; font-size: 1rem; font-weight: 500; }