/* =============================================
   LOGIN CSS - TEMA CAFETERÍA RESPONSIVE
   ============================================= */

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

body {
    /* Fondo con degradado cálido que recuerda al café */
    background: linear-gradient(135deg, #6f4e37, #d9a066, #f1e3d3);
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
    color: #3e2723;
}

/* Caja del login */
.login-box {
    width: 100%;
    max-width: 420px;
    padding: 40px 30px;
    background: #fff8f0;
    border-radius: 15px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
    text-align: center;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.login-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
}

/* Decoración: ícono de café en la esquina */
.login-box::before {
    content: "☕";
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    color: #d9a066;
    position: absolute;
    top: -25px;
    right: 15px;
    opacity: 0.2;
}

.login-box h2 {
    margin: 0 0 25px;
    color: #6f4e37;
    font-weight: bold;
    font-size: clamp(1.6rem, 5vw, 2rem);
    letter-spacing: 1px;
}

/* Estilo del formulario */
.login-box form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.login-box input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #c7a17a;
    border-radius: 8px;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    background: #fffdf9;
    transition: all 0.3s ease-in-out;
    box-sizing: border-box;
}

.login-box input:focus {
    border-color: #8b5e3c;
    box-shadow: 0 0 8px rgba(139, 94, 60, 0.4);
    outline: none;
}

.login-box input::placeholder {
    color: #a1887f;
}

/* Botón de acceso */
.login-box button {
    background: linear-gradient(135deg, #8b5e3c, #6f4e37);
    color: #fff;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-height: 48px;
}

.login-box button:hover {
    background: linear-gradient(135deg, #a97452, #8b5e3c);
    transform: scale(1.03);
}

.login-box button:active {
    transform: scale(0.98);
}

.login-box button:focus {
    outline: 2px solid #8b5e3c;
    outline-offset: 2px;
}

/* Texto debajo */
.login-box p {
    margin-top: 18px;
    color: #5d4037;
    font-size: clamp(0.85rem, 2vw, 0.95rem);
}

.login-box p a {
    color: #8b5e3c;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.login-box p a:hover {
    color: #d2691e;
    text-decoration: underline;
}

.login-box p a:focus {
    outline: 2px solid #8b5e3c;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Texto descriptivo debajo del título */
.login-box .descripcion {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    color: #6d4c41;
    background: #fff3e0;
    padding: 10px 15px;
    border-radius: 8px;
    margin: -10px 0 20px 0;
    line-height: 1.4em;
    box-shadow: inset 0 1px 4px rgba(0,0,0,0.08);
    font-style: italic;
}

/* Botón volver al inicio */
.volver-btn {
    display: inline-block;
    background: linear-gradient(135deg, #d9a066, #b07d52);
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease-in-out;
    margin-top: 12px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.volver-btn:hover {
    background: linear-gradient(135deg, #f1c27d, #d9a066);
    transform: scale(1.05);
}

.volver-btn:active {
    transform: scale(0.97);
}

.volver-btn:focus {
    outline: 2px solid #d9a066;
    outline-offset: 2px;
}

/* =============================================
   ESTADOS DE LOADING Y ERROR
   ============================================= */
.login-box button:disabled {
    background: linear-gradient(135deg, #bcaaa4, #a1887f);
    cursor: not-allowed;
    opacity: 0.6;
}

.error-message {
    background-color: #ffebee;
    color: #c62828;
    padding: 10px 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    border-left: 4px solid #c62828;
}

.success-message {
    background-color: #e8f5e9;
    color: #2e7d32;
    padding: 10px 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    border-left: 4px solid #2e7d32;
}

/* Spinner de carga */
.spinner {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid #fff;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-right: 8px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =============================================
   RESPONSIVE - TABLETS
   ============================================= */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .login-box {
        max-width: 500px;
        padding: 35px 25px;
    }

    .login-box::before {
        top: -20px;
        right: 10px;
    }

    .login-box h2 {
        margin-bottom: 20px;
    }

    .login-box form {
        gap: 16px;
    }

    .login-box input {
        padding: 11px 14px;
    }

    .login-box button {
        padding: 13px;
    }
}

/* =============================================
   RESPONSIVE - MÓVILES
   ============================================= */
@media (max-width: 480px) {
    body {
        padding: 12px;
        align-items: flex-start;
        padding-top: 30px;
    }

    .login-box {
        width: 100%;
        max-width: 100%;
        padding: 30px 20px;
        border-radius: 12px;
    }

    .login-box::before {
        font-size: 2.5rem;
        top: -18px;
        right: 8px;
    }

    .login-box h2 {
        margin-bottom: 18px;
        letter-spacing: 0.5px;
    }

    .login-box form {
        gap: 14px;
    }

    .login-box input {
        padding: 10px 12px;
        border-radius: 6px;
    }

    .login-box button {
        padding: 12px;
        border-radius: 6px;
    }

    .login-box .descripcion {
        padding: 8px 12px;
        margin: -8px 0 18px 0;
    }

    .volver-btn {
        padding: 10px 18px;
        width: 100%;
        margin-top: 10px;
    }

    .login-box p {
        margin-top: 15px;
    }
}

/* =============================================
   RESPONSIVE - MÓVILES PEQUEÑOS
   ============================================= */
@media (max-width: 360px) {
    body {
        padding: 10px;
        padding-top: 20px;
    }

    .login-box {
        padding: 25px 18px;
        border-radius: 10px;
    }

    .login-box::before {
        font-size: 2rem;
        top: -15px;
        right: 5px;
    }

    .login-box h2 {
        margin-bottom: 15px;
    }

    .login-box form {
        gap: 12px;
    }

    .login-box input {
        padding: 9px 11px;
        font-size: 14px;
    }

    .login-box button {
        padding: 11px;
        font-size: 15px;
        min-height: 44px;
    }

    .login-box .descripcion {
        padding: 7px 10px;
        font-size: 0.85rem;
    }

    .volver-btn {
        padding: 9px 16px;
        font-size: 0.9rem;
    }
}

/* =============================================
   LANDSCAPE MODE EN MÓVILES
   ============================================= */
@media (max-width: 768px) and (orientation: landscape) {
    body {
        padding: 10px;
        align-items: center;
    }

    .login-box {
        padding: 25px 30px;
        max-width: 600px;
    }

    .login-box h2 {
        margin-bottom: 15px;
        font-size: 1.6rem;
    }

    .login-box form {
        gap: 12px;
    }

    .login-box input {
        padding: 9px 12px;
    }

    .login-box button {
        padding: 10px;
    }

    .login-box .descripcion {
        margin: -5px 0 15px 0;
        padding: 8px 12px;
    }
}

/* =============================================
   OPTIMIZACIÓN PARA PANTALLAS TÁCTILES
   ============================================= */
@media (hover: none) and (pointer: coarse) {
    .login-box:hover {
        transform: none;
    }

    .login-box button:active {
        transform: scale(0.96);
    }

    .volver-btn:active {
        transform: scale(0.95);
    }

    .login-box p a:active {
        color: #d2691e;
    }

    /* Áreas táctiles más grandes */
    .login-box input {
        min-height: 48px;
    }

    .login-box p a {
        padding: 4px 8px;
        margin: -4px -8px;
    }
}

/* =============================================
   MEJORAS DE ACCESIBILIDAD
   ============================================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .login-box:hover {
        transform: none;
    }

    .login-box button:hover,
    .volver-btn:hover {
        transform: none;
    }
}

/* =============================================
   ALTO CONTRASTE
   ============================================= */
@media (prefers-contrast: high) {
    .login-box {
        border: 2px solid #6f4e37;
    }

    .login-box input {
        border-width: 2px;
    }

    .login-box input:focus {
        border-width: 3px;
    }

    .login-box button {
        border: 2px solid #3e2723;
    }

    .volver-btn {
        border: 2px solid #8b5e3c;
    }
}

/* =============================================
   SAFE AREA PARA NOTCH (iPhone X+)
   ============================================= */
@supports (padding: max(0px)) {
    body {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
        padding-top: max(20px, env(safe-area-inset-top));
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }
}

/* =============================================
   ANIMACIONES ADICIONALES
   ============================================= */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-box {
    animation: fadeIn 0.5s ease-out;
}

/* =============================================
   MODO OSCURO (OPCIONAL)
   ============================================= */
@media (prefers-color-scheme: dark) {
    /* Si decides implementar modo oscuro
    body {
        background: linear-gradient(135deg, #3e2723, #5d4037, #795548);
    }

    .login-box {
        background: #4e342e;
        color: #efebe9;
    }

    .login-box h2 {
        color: #d7ccc8;
    }

    .login-box input {
        background: #3e2723;
        color: #efebe9;
        border-color: #6d4c41;
    }

    .login-box .descripcion {
        background: #5d4037;
        color: #d7ccc8;
    }
    */
}

/* =============================================
   PRINT STYLES
   ============================================= */
@media print {
    body {
        background: white;
        padding: 0;
    }

    .login-box {
        box-shadow: none;
        border: 1px solid #000;
    }

    .login-box::before,
    .volver-btn {
        display: none;
    }
}

/* =============================================
   FIN DEL ARCHIVO - TOTALMENTE RESPONSIVE
   ============================================= */