/* Matrix Animation Styles */
:root {
    --matrix-green: #0f0;
    --matrix-dark: #001a00;
    --matrix-darker: #000d00;
}

body.landing {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background: var(--matrix-darker);
    font-family: 'Courier New', monospace;
}

/* Canvas de fondo Matrix */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    opacity: 0.8;
}

/* Overlay oscuro */
.matrix-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
    z-index: 2;
}

/* Contenedor principal */
.landing-container {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

/* Card principal */
.login-card {
    background: rgba(0, 26, 0, 0.95);
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 0 50px rgba(0, 255, 0, 0.3),
                inset 0 0 30px rgba(0, 255, 0, 0.05);
    max-width: 400px;
    width: 100%;
    backdrop-filter: blur(10px);
    animation: cardPulse 3s ease-in-out infinite;
}

@keyframes cardPulse {
    0%, 100% {
        box-shadow: 0 0 50px rgba(0, 255, 0, 0.3),
                    inset 0 0 30px rgba(0, 255, 0, 0.05);
    }
    50% {
        box-shadow: 0 0 70px rgba(0, 255, 0, 0.5),
                    inset 0 0 40px rgba(0, 255, 0, 0.1);
    }
}

/* Logo/Título */
.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    font-size: 3rem;
    text-shadow: 0 0 10px var(--matrix-green),
                 0 0 20px var(--matrix-green);
    animation: logoGlow 2s ease-in-out infinite;
}

@keyframes logoGlow {
    0%, 100% {
        text-shadow: 0 0 10px var(--matrix-green),
                     0 0 20px var(--matrix-green);
    }
    50% {
        text-shadow: 0 0 20px var(--matrix-green),
                     0 0 40px var(--matrix-green);
    }
}

.login-title {
    color: var(--matrix-green);
    font-size: 2rem;
    margin: 10px 0;
    font-weight: bold;
    letter-spacing: 2px;
}

.login-subtitle {
    color: rgba(0, 255, 0, 0.7);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* Indicador de PIN */
.pin-display {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0;
}

.pin-dot {
    width: 18px;
    height: 18px;
    border: 2px solid var(--matrix-green);
    border-radius: 50%;
    background: transparent;
    transition: all 0.3s ease;
}

.pin-dot.filled {
    background: var(--matrix-green);
    box-shadow: 0 0 10px var(--matrix-green);
    transform: scale(1.2);
}

/* Teclado PIN */
.pin-keyboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 20px 0;
    grid-template-rows: repeat(4, 1fr);
}

.pin-key {
    aspect-ratio: 1;
    background: rgba(0, 255, 0, 0.05);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    color: var(--matrix-green);
    font-size: 1.8rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.pin-key:hover {
    background: rgba(0, 255, 0, 0.15);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
    transform: scale(1.05);
}

.pin-key:active {
    transform: scale(0.95);
    box-shadow: inset 0 0 15px rgba(0, 255, 0, 0.3);
}

.pin-key::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(0, 255, 0, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.pin-key:active::before {
    width: 100%;
    height: 100%;
}

/* Botones especiales (# y @) */
.pin-key-special {
    background: rgba(0, 255, 0, 0.1);
    border-color: rgba(0, 255, 0, 0.8);
}

.pin-key-special:hover {
    background: rgba(0, 255, 0, 0.2);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
    transform: scale(1.05);
}

/* Botones de acción */
.pin-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 20px;
}

.btn-action {
    padding: 12px;
    background: rgba(0, 255, 0, 0.05);
    border: 2px solid var(--matrix-green);
    border-radius: 8px;
    color: var(--matrix-green);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
}

.btn-action:hover {
    background: rgba(0, 255, 0, 0.15);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
}

.btn-action:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Mensajes de error */
.error-message {
    color: #ff0000;
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid #ff0000;
    padding: 10px;
    border-radius: 5px;
    margin-top: 15px;
    text-align: center;
    font-size: 0.9rem;
    display: none;
    animation: shake 0.5s ease;
}

.error-message.show {
    display: block;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Loading spinner */
.loading {
    display: none;
    text-align: center;
    margin-top: 20px;
}

.loading.show {
    display: block;
}

.spinner {
    border: 3px solid rgba(0, 255, 0, 0.1);
    border-top: 3px solid var(--matrix-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

/* Separador entre PIN y biométrico */
.auth-separator {
    margin: 25px 0 20px;
    position: relative;
    text-align: center;
}

.auth-separator::before,
.auth-separator::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--matrix-green), transparent);
}

.auth-separator::before {
    left: 0;
}

.auth-separator::after {
    right: 0;
}

.auth-separator span {
    color: rgba(0, 255, 0, 0.6);
    font-size: 0.9rem;
    padding: 0 15px;
    background: rgba(0, 26, 0, 0.95);
    position: relative;
    z-index: 1;
}

/* Sección biométrica */
.biometric-section {
    text-align: center;
    margin: 20px 0;
}

.btn-biometric {
    width: 100%;
    padding: 15px;
    background: rgba(0, 255, 0, 0.05);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    color: var(--matrix-green);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    letter-spacing: 1px;
}

.btn-biometric:hover {
    background: rgba(0, 255, 0, 0.15);
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.4);
    transform: translateY(-2px);
}

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

.btn-biometric:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.biometric-icon {
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 0 3px var(--matrix-green));
}

.biometric-hint {
    color: rgba(0, 255, 0, 0.5);
    font-size: 0.75rem;
    margin-top: 8px;
    letter-spacing: 0.5px;
}

/* Estados del botón biométrico */
.btn-biometric.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-biometric.loading .biometric-icon {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }
}

/* Formulario de PIN simple */
.pin-form {
    margin: 30px 0;
}

.pin-label {
    display: block;
    color: var(--matrix-green);
    font-size: 0.9rem;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 12px;
    text-align: center;
}

.pin-input {
    width: 100%;
    padding: 14px 0px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    color: var(--matrix-green);
    font-size: 1.5rem;
    font-family: 'Courier New', monospace;
    text-align: center;
    letter-spacing: 8px;
    transition: all 0.3s ease;
    outline: none;
    margin-bottom: 15px;
}

.pin-input::placeholder {
    color: rgba(0, 255, 0, 0.3);
    letter-spacing: 8px;
}

.pin-input:focus {
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5),
                inset 0 0 10px rgba(0, 255, 0, 0.1);
    border-color: var(--matrix-green);
}

.pin-input:invalid {
    border-color: rgba(0, 255, 0, 0.5);
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: rgba(0, 255, 0, 0.1);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    color: var(--matrix-green);
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    transform: translate(-50%, -50%);
    background: rgba(0, 255, 0, 0.2);
    border-radius: 50%;
    transition: width 0.6s, height 0.6s;
}

.btn-submit:hover::before {
    width: 300px;
    height: 300px;
}

.btn-submit:hover {
    box-shadow: 0 0 30px rgba(0, 255, 0, 0.5);
    transform: translateY(-2px);
}

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

.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-submit span {
    position: relative;
    z-index: 1;
}

/* Aviso biométrico */
.biometric-notice {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 15px;
    background: rgba(255, 200, 0, 0.1);
    border: 2px solid rgba(255, 200, 0, 0.5);
    border-radius: 10px;
    margin-top: 20px;
}

.biometric-notice svg {
    color: rgba(255, 200, 0, 0.8);
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.biometric-notice .notice-title {
    color: rgba(255, 200, 0, 0.9);
    font-weight: bold;
    font-size: 0.9rem;
    margin: 0 0 4px 0;
    letter-spacing: 0.5px;
}

.biometric-notice .notice-text {
    color: rgba(255, 200, 0, 0.7);
    font-size: 0.75rem;
    margin: 0;
    line-height: 1.4;
}

/* Responsive */
@media (max-width: 640px) {
    .landing-container {
        padding: 15px;
    }
    
    .login-card {
        padding: 25px 20px;
        max-width: 100%;
    }
    
    .pin-input {
        font-size: 1.2rem;
        letter-spacing: 6px;
    }
    
    .pin-input::placeholder {
        letter-spacing: 6px;
    }
    
    .login-header {
        margin-bottom: 20px;
    }
    
    .login-logo {
        font-size: 2.5rem;
    }
    
    .login-title {
        font-size: 1.4rem;
        letter-spacing: 1px;
        margin: 8px 0;
    }
    
    .login-subtitle {
        font-size: 0.75rem;
    }
    
    .pin-display {
        gap: 10px;
        margin: 20px 0;
    }
    
    .pin-dot {
        width: 14px;
        height: 14px;
    }
    
    .pin-keyboard {
        gap: 8px;
        margin: 15px 0;
    }
    
    .pin-key {
        font-size: 1.4rem;
        border-radius: 8px;
    }
    
    .pin-actions {
        gap: 8px;
        margin-top: 15px;
    }
    
    .btn-action {
        padding: 10px;
        font-size: 0.85rem;
    }
    
    .error-message {
        font-size: 0.8rem;
        padding: 8px;
        margin-top: 12px;
    }
}

@media (max-width: 380px) {
    .login-card {
        padding: 20px 15px;
    }
    
    .login-logo {
        font-size: 2rem;
    }
    
    .login-title {
        font-size: 1.2rem;
    }
    
    .login-subtitle {
        font-size: 0.7rem;
    }
    
    .pin-display {
        gap: 8px;
        margin: 15px 0;
    }
    
    .pin-dot {
        width: 12px;
        height: 12px;
    }
    
    .pin-keyboard {
        gap: 6px;
    }
    
    .pin-key {
        font-size: 1.2rem;
    }
    
    .btn-action {
        padding: 8px;
        font-size: 0.75rem;
        letter-spacing: 0.5px;
    }
}