/* ============================================================================
   LOGIN AUTHENTICATION STYLES
   Integrado com o tema dark do painel principal
   ============================================================================ */

:root {
    /* Login specific colors */
    --login-primary: #3b82f6;
    --login-primary-dark: #2563eb;
    --login-bg: #0f172a;
    --login-card-bg: rgba(30, 41, 59, 0.95);
    --login-border: rgba(148, 163, 184, 0.2);
    --login-text: #f8fafc;
    --login-text-secondary: #cbd5e1;
    --login-input-bg: rgba(51, 65, 85, 0.8);
    --login-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    
    /* Animation colors */
    --network-line: rgba(59, 130, 246, 0.3);
    --network-node: rgba(59, 130, 246, 0.6);
}

/* ============================================================================
   LOGIN BODY & CONTAINER
   ============================================================================ */

.login-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: var(--login-bg);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    position: relative;
    z-index: 10;
}

/* ============================================================================
   LOGIN CARD
   ============================================================================ */

.login-card {
    background: var(--login-card-bg);
    border: 1px solid var(--login-border);
    border-radius: 1rem;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--login-shadow);
    backdrop-filter: blur(20px);
    position: relative;
    animation: loginCardFadeIn 0.8s ease-out;
}

@keyframes loginCardFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ============================================================================
   LOGIN HEADER
   ============================================================================ */

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--login-primary) 0%, var(--login-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    animation: logoRotate 3s ease-in-out infinite;
}

.login-logo i {
    font-size: 2rem;
    color: white;
}

@keyframes logoRotate {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(5deg) scale(1.05); }
}

.login-title {
    color: var(--login-text);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--login-text) 0%, var(--login-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: var(--login-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0;
    opacity: 0.8;
}

/* ============================================================================
   LOGIN FORM
   ============================================================================ */

.login-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    color: var(--login-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: block;
    font-size: 0.95rem;
}

.form-label i {
    margin-right: 0.5rem;
    color: var(--login-primary);
    width: 16px;
}

.login-input {
    background: var(--login-input-bg) !important;
    border: 1px solid var(--login-border) !important;
    color: var(--login-text) !important;
    border-radius: 0.5rem !important;
    padding: 0.75rem 1rem !important;
    font-size: 1rem !important;
    transition: all 0.3s ease !important;
    backdrop-filter: blur(10px);
}

.login-input:focus {
    border-color: var(--login-primary) !important;
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25) !important;
    background: rgba(51, 65, 85, 0.9) !important;
}

.login-input::placeholder {
    color: var(--login-text-secondary) !important;
    opacity: 0.7 !important;
}

/* Password Toggle */
.password-input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--login-text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.password-toggle:hover {
    color: var(--login-primary);
    background: rgba(59, 130, 246, 0.1);
}

/* ============================================================================
   LOGIN BUTTON
   ============================================================================ */

.login-btn {
    background: linear-gradient(135deg, var(--login-primary) 0%, var(--login-primary-dark) 100%) !important;
    border: none !important;
    color: white !important;
    padding: 0.875rem 2rem !important;
    font-size: 1rem !important;
    font-weight: 600 !important;
    border-radius: 0.5rem !important;
    width: 100%;
    transition: all 0.3s ease !important;
    position: relative;
    overflow: hidden;
}

.login-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--login-primary-dark) 0%, #1d4ed8 100%) !important;
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

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

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.login-btn i {
    margin-right: 0.5rem;
}

/* ============================================================================
   MESSAGES
   ============================================================================ */

.login-message {
    border-radius: 0.5rem !important;
    margin-bottom: 1.5rem !important;
    border: none !important;
    backdrop-filter: blur(10px);
}

.login-message.alert-danger {
    background: rgba(239, 68, 68, 0.15) !important;
    color: #fca5a5 !important;
    border: 1px solid rgba(239, 68, 68, 0.3) !important;
}

.login-message.alert-success {
    background: rgba(16, 185, 129, 0.15) !important;
    color: #86efac !important;
    border: 1px solid rgba(16, 185, 129, 0.3) !important;
}

.login-message i {
    margin-right: 0.5rem;
}

/* ============================================================================
   LOGIN FOOTER
   ============================================================================ */

.login-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--login-border);
}

.login-footer-text {
    color: var(--login-text-secondary);
    font-size: 0.85rem;
    margin: 0;
    opacity: 0.7;
}

.login-footer-text i {
    margin-right: 0.5rem;
    color: var(--login-primary);
}

/* ============================================================================
   BACKGROUND ANIMATION
   ============================================================================ */

.login-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* Network Lines Animation */
.network-lines {
    position: absolute;
    width: 100%;
    height: 100%;
}

.line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--network-line), transparent);
    animation: moveLine 8s linear infinite;
}

.line-1 {
    top: 20%;
    left: -100%;
    width: 200px;
    height: 1px;
    animation-delay: 0s;
}

.line-2 {
    top: 45%;
    right: -100%;
    width: 150px;
    height: 1px;
    animation: moveLineReverse 6s linear infinite;
    animation-delay: 2s;
}

.line-3 {
    top: 70%;
    left: -100%;
    width: 180px;
    height: 1px;
    animation-delay: 4s;
}

.line-4 {
    top: 85%;
    right: -100%;
    width: 120px;
    height: 1px;
    animation: moveLineReverse 10s linear infinite;
    animation-delay: 6s;
}

@keyframes moveLine {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(100vw + 200px)); }
}

@keyframes moveLineReverse {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-100vw - 200px)); }
}

/* Network Nodes Animation */
.network-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--network-node);
    border-radius: 50%;
    animation: nodeGlow 3s ease-in-out infinite;
}

.node-1 {
    top: 15%;
    left: 10%;
    animation-delay: 0s;
}

.node-2 {
    top: 25%;
    right: 15%;
    animation-delay: 1s;
}

.node-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 2s;
}

.node-4 {
    bottom: 20%;
    right: 10%;
    animation-delay: 3s;
}

.node-5 {
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes nodeGlow {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.5);
        box-shadow: 0 0 20px var(--network-node);
    }
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
    }
    
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .login-logo {
        width: 60px;
        height: 60px;
    }
    
    .login-logo i {
        font-size: 1.5rem;
    }
    
    .login-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem 1rem;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
}