/* Reset y variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #0A3D62;
    --color-primary-hover: #0d4d7a;
    --color-success: #16A34A;
    --color-danger: #FF4444;
    --color-bg: #121212;
    --color-card: #2C2C2C;
    --color-text: #A1A1A1;
    --color-text-light: #E5E5E5;
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --transition: all 0.3s ease;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header */
header {
    padding: 2rem 1rem 1.5rem;
}

.title {
    color: var(--color-primary);
    text-align: center;
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* Main Container */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem 3rem;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Cards */
.card {
    background-color: var(--color-card);
    border-radius: var(--border-radius-lg);
    padding: clamp(1rem, 3vw, 2rem);
    border: 2px solid var(--color-primary);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.card-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--color-text);
    text-align: center;
    text-transform: uppercase;
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}

/* Iconos */
.icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.icon-small {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.icon-large {
    width: 48px;
    height: 48px;
    opacity: 0.3;
}

.icon-btn {
    width: 20px;
    height: 20px;
}

/* Formulario */
.form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="search"],
select {
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 1rem;
    color: var(--color-text);
    font-size: clamp(0.9rem, 2vw, 1rem);
    transition: var(--transition);
    margin: 0;
    width: 100%;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(10, 61, 98, 0.2);
}

input::placeholder {
    color: rgba(161, 161, 161, 0.5);
}

/* Botones */
.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 1rem;
    font-size: clamp(0.9rem, 2vw, 1rem);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 0.5rem;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(10, 61, 98, 0.4);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-secondary:hover {
    background-color: rgba(10, 61, 98, 0.2);
    border-color: var(--color-primary-hover);
}

/* Resumen */
.resumen {
    display: flex;
    flex-direction: column;
}

.resumen-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.stat-header h3 {
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    font-weight: 500;
    color: var(--color-text);
}

.stat-value {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--color-success);
    word-break: break-word;
}

/* Gráfico */
.grafico-container {
    height: 280px;
    margin-bottom: 1.5rem;
    position: relative;
}

#grafico {
    max-height: 280px;
}

/* Resumen por categorías */
.resumen-categorias {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 140px), 1fr));
    gap: 0.75rem;
}

.resumen-categorias p {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.75rem;
    border-radius: 8px;
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    word-break: break-word;
}

/* Lista Section */
.lista-section {
    margin-top: 3rem;
}

.section-title {
    color: var(--color-primary);
    text-align: center;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
}

/* Filtros */
.filtros {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    background-color: var(--color-card);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.filtro-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    flex: 1;
    min-width: min(100%, 200px);
}

.filtro-group label {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    color: var(--color-text);
}

.filtros select,
.filtros input[type="search"] {
    width: 100%;
    min-width: 0;
}

.filtros select,
.filtros select option {
    background-color: #1f1f1f; 
    color: var(--color-text); 
}

.filtros select option:hover {
    background-color: #0b1113;
    color: #ffffff;
}

#btn-limpiar-filtros {
    flex-shrink: 0;
    width: 100%;
}

/* Lista de gastos */
.lista-container {
    background-color: var(--color-card);
    border-radius: var(--border-radius-lg);
    padding: clamp(1rem, 3vw, 2rem);
    min-height: 300px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

#lista-gastos {
    list-style: none;
    counter-reset: item;
}

#lista-gastos li {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid rgba(10, 61, 98, 0.3);
    border-radius: 12px;
    transition: var(--transition);
    counter-increment: item;
    position: relative;
}

#lista-gastos li::before {
    content: counter(item) ".";
    font-weight: 700;
    color: var(--color-primary);
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    position: absolute;
    top: 1rem;
    left: 1rem;
}

#lista-gastos li:hover {
    background-color: rgba(0, 0, 0, 0.2);
}

.gasto-info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    padding-left: 2rem;
}

.gasto-nombre {
    font-weight: 600;
    color: var(--color-text-light);
    font-size: clamp(0.95rem, 2.5vw, 1.05rem);
    word-break: break-word;
}

.gasto-monto {
    color: var(--color-success);
    font-weight: 700;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
}

.gasto-detalles {
    color: rgba(161, 161, 161, 0.7);
    font-size: clamp(0.85rem, 2vw, 0.9rem);
}

.gasto-categoria {
    background-color: rgba(10, 61, 98, 0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: clamp(0.8rem, 2vw, 0.85rem);
}

.delete-btn {
    background-color: transparent;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    align-self: flex-end;
}

.delete-btn:hover {
    background-color: rgba(255, 68, 68, 0.15);
    transform: scale(1.05);
}

.delete-btn svg {
    width: 20px;
    height: 20px;
}

/* Mensaje vacío */
.mensaje-vacio {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: rgba(161, 161, 161, 0.5);
}

.mensaje-vacio.visible {
    display: flex;
}

.mensaje-vacio p {
    margin-top: 1rem;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    text-align: center;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#lista-gastos li {
    animation: fadeIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-hover);
}

/* Media Queries para tablets */
@media (min-width: 768px) and (max-width: 1024px) {
    .container {
        grid-template-columns: 1fr;
    }
    
    .filtros {
        flex-direction: row;
    }
    
    .filtro-group {
        flex: 1;
        min-width: min(100%, 180px);
    }
    
    #btn-limpiar-filtros {
        width: auto;
        flex: 0 0 auto;
    }
    
    #lista-gastos li {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .gasto-info {
        flex: 1;
        padding-left: 2.5rem;
    }
}

/* Media Queries para desktop */
@media (min-width: 1025px) {
    .filtros {
        flex-direction: row;
    }
    
    .filtro-group {
        flex-direction: row;
        align-items: center;
        flex: 0 0 auto;
        min-width: auto;
    }
    
    .filtro-group label {
        white-space: nowrap;
    }
    
    .filtros select {
        min-width: 150px;
        width: auto;
    }
    
    .filtros input[type="search"] {
        width: 250px;
    }
    
    #btn-limpiar-filtros {
        width: auto;
        margin-left: auto;
    }
    
    #lista-gastos li {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 1.25rem;
    }
    
    #lista-gastos li::before {
        position: relative;
        top: auto;
        left: auto;
        margin-right: 1rem;
    }
    
    .gasto-info {
        flex: 1;
        padding-left: 0;
    }
    
    .delete-btn {
        align-self: center;
    }
}

/* Ajustes para p