:root {
    --azul-profundo: #123b56;
    --azul-claro: #e8f3f7;
    --turquesa: #168c8c;
    --verde: #247a5a;
    --rojo: #b84c4c;
    --texto: #243746;
    --texto-suave: #627583;
    --borde: #cbdbe1;
    --fondo: #edf5f6;
    --blanco: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    padding: clamp(20px, 5vw, 64px) 16px;
    color: var(--texto);
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.72), transparent 48%),
        var(--fondo);
}

.container {
    width: min(100%, 820px);
    margin: 0 auto;
    padding: clamp(24px, 5vw, 48px);
    background: var(--blanco);
    border: 1px solid rgba(18, 59, 86, 0.1);
    border-radius: 14px;
    box-shadow: 0 18px 50px rgba(18, 59, 86, 0.12);
}

h2 {
    margin-bottom: 30px;
    color: var(--azul-profundo);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    line-height: 1.15;
    text-align: center;
}

.buscador {
    display: flex;
    gap: 12px;
    align-items: end;
    margin-bottom: 30px;
    padding: 18px;
    background: var(--azul-claro);
    border-left: 4px solid var(--turquesa);
    border-radius: 8px;
}

.buscador input {
    flex: 1;
}

#formFicha {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 18px;
}

.form-group {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 7px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    color: var(--azul-profundo);
    font-size: 0.88rem;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px 13px;
    color: var(--texto);
    font: inherit;
    background: #fbfdfd;
    border: 1px solid var(--borde);
    border-radius: 6px;
    outline: none;
    transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

textarea {
    min-height: 96px;
    resize: vertical;
}

input::placeholder {
    color: var(--texto-suave);
}

input:focus,
select:focus,
textarea:focus {
    background: var(--blanco);
    border-color: var(--turquesa);
    box-shadow: 0 0 0 3px rgba(22, 140, 140, 0.15);
}

button {
    min-height: 44px;
    padding: 11px 20px;
    color: var(--blanco);
    font: inherit;
    font-weight: 700;
    border: 0;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 160ms ease, filter 160ms ease, box-shadow 160ms ease;
}

button:hover {
    filter: brightness(1.06);
    transform: translateY(-1px);
}

button:focus-visible {
    outline: 3px solid rgba(22, 140, 140, 0.35);
    outline-offset: 2px;
}

.btn-guardar { background: var(--verde); }
.btn-limpiar { color: var(--azul-profundo); background: #dcecef; }
.btn-cerrar { background: var(--rojo); }
.btn-buscar { background: var(--turquesa); }

.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 6px;
}

@media (max-width: 600px) {
    body {
        padding: 12px;
    }

    .container {
        padding: 24px 18px;
        border-radius: 10px;
    }

    .buscador,
    #formFicha {
        grid-template-columns: 1fr;
    }

    .buscador {
        align-items: stretch;
        flex-direction: column;
        margin-bottom: 24px;
    }

    .form-group.full-width {
        grid-column: auto;
    }

    .button-group {
        flex-direction: column;
    }

    .button-group button,
    .btn-buscar {
        width: 100%;
    }
}