/**
 * Enhanced Login Page Styles - Modern Design System
 * Unified with NFC UI components for consistent branding
 * 
 * @version 3.0
 * @created 2025-10-02
 * @features Advanced Glassmorphism, Animations, Responsive Design
 */

/* ===== CSS VARIABLES - ENHANCED LOGIN SYSTEM ===== */
:root {
    /* Primary Colors */
    --login-primary: #0A192F;
    --login-primary-light: #112240;
    --login-primary-dark: #020C1B;
    
    /* Accent Colors */
    --login-accent: #64FFDA;
    --login-accent-hover: #4EE0C0;
    --login-accent-light: rgba(100, 255, 218, 0.1);
    --login-accent-glow: rgba(100, 255, 218, 0.4);
    
    /* Status Colors */
    --login-success: #00D9FF;
    --login-warning: #FFB800;
    --login-danger: #FF6B6B;
    --login-info: #4ECDC4;
    
    /* Text Colors */
    --login-text-primary: #FFFFFF;
    --login-text-secondary: #8892B0;
    --login-text-muted: #495670;
    
    /* Background Colors */
    --login-bg-glass: rgba(100, 255, 218, 0.05);
    --login-bg-glass-hover: rgba(100, 255, 218, 0.08);
    --login-bg-card: rgba(17, 34, 64, 0.6);
    --login-bg-card-hover: rgba(17, 34, 64, 0.8);
    
    /* Border Colors */
    --login-border: rgba(100, 255, 218, 0.1);
    --login-border-hover: rgba(100, 255, 218, 0.2);
    
    /* Shadows */
    --login-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --login-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --login-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    --login-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.3);
    --login-glow: 0 0 20px var(--login-accent-glow);
    
    /* Border Radius */
    --login-radius-sm: 0.5rem;
    --login-radius: 0.75rem;
    --login-radius-lg: 1rem;
    --login-radius-xl: 1.5rem;
    
    /* Transitions */
    --login-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --login-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --login-transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --login-space-xs: 0.5rem;
    --login-space-sm: 1rem;
    --login-space: 1.5rem;
    --login-space-lg: 2rem;
    --login-space-xl: 3rem;
}

/* ===== BASE STYLES ===== */
body.login-page {
    background: linear-gradient(135deg, var(--login-primary) 0%, var(--login-primary-dark) 100%) !important;
    min-height: 100vh !important;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow-x: hidden !important;
    position: relative;
}

body.login-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(100, 255, 218, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(100, 255, 218, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 217, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ===== ENHANCED ANIMATED BACKGROUND ===== */
.login-animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: 0.4;
}

.login-floating-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--login-accent), transparent);
    animation: loginFloat 8s ease-in-out infinite;
    filter: blur(1px);
}

.login-floating-shape:nth-child(1) {
    width: 120px;
    height: 120px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    background: linear-gradient(45deg, var(--login-accent), var(--login-success));
}

.login-floating-shape:nth-child(2) {
    width: 80px;
    height: 80px;
    top: 20%;
    right: 15%;
    animation-delay: 2s;
    background: linear-gradient(45deg, var(--login-success), var(--login-info));
}

.login-floating-shape:nth-child(3) {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
    background: linear-gradient(45deg, var(--login-info), var(--login-accent));
}

.login-floating-shape:nth-child(4) {
    width: 60px;
    height: 60px;
    top: 60%;
    right: 30%;
    animation-delay: 1s;
    background: linear-gradient(45deg, var(--login-accent), transparent);
}

.login-floating-shape:nth-child(5) {
    width: 140px;
    height: 140px;
    bottom: 10%;
    right: 10%;
    animation-delay: 3s;
    background: linear-gradient(45deg, var(--login-success), transparent);
}

@keyframes loginFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-20px) rotate(90deg) scale(1.1);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-40px) rotate(180deg) scale(0.9);
        opacity: 0.7;
    }
    75% {
        transform: translateY(-20px) rotate(270deg) scale(1.1);
        opacity: 0.5;
    }
}

/* ===== ENHANCED GLASS MORPHISM ===== */
.login-glass-card {
    background: var(--login-bg-card);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--login-border);
    border-radius: var(--login-radius-xl);
    box-shadow: var(--login-shadow-xl);
    position: relative;
    overflow: hidden;
    transition: var(--login-transition);
}

.login-glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--login-accent), transparent);
    animation: loginShimmer 3s infinite;
}

.login-glass-card:hover {
    background: var(--login-bg-card-hover);
    border-color: var(--login-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--login-shadow-xl), var(--login-glow);
}

@keyframes loginShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ===== ENHANCED LOGO & BRANDING ===== */
.login-logo {
    animation: loginGlow 3s ease-in-out infinite alternate;
    position: relative;
}

.login-logo h1 {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--login-text-primary) 0%, var(--login-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--login-space-sm);
    position: relative;
}

.login-logo .accent-text {
    color: var(--login-accent);
    filter: drop-shadow(0 0 10px var(--login-accent-glow));
}

@keyframes loginGlow {
    from {
        filter: drop-shadow(0 0 10px var(--login-accent-glow));
    }
    to {
        filter: drop-shadow(0 0 20px var(--login-accent-glow));
    }
}

/* ===== ENHANCED FORM STYLES ===== */
.login-form-container {
    animation: loginSlideInUp 0.8s ease-out;
}

@keyframes loginSlideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-input-group {
    position: relative;
    margin-bottom: var(--login-space);
}

.login-input-field {
    width: 100%;
    padding: 1.25rem 1.25rem 1.25rem 3.5rem;
    background: var(--login-bg-glass);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 2px solid var(--login-border);
    border-radius: var(--login-radius-lg);
    color: var(--login-text-primary);
    font-size: 1rem;
    font-weight: 400;
    transition: var(--login-transition);
    outline: none;
    box-shadow: var(--login-shadow);
    position: relative;
}

.login-input-field:focus {
    border-color: var(--login-accent);
    background: var(--login-bg-glass-hover);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: translateY(-2px);
    box-shadow: var(--login-shadow-lg), 0 0 0 4px rgba(100, 255, 218, 0.1);
}

.login-input-field::placeholder {
    color: var(--login-text-muted);
    transition: var(--login-transition);
}

.login-input-field:focus::placeholder {
    opacity: 0.7;
    transform: translateX(4px);
}

.login-input-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--login-text-secondary);
    font-size: 1.25rem;
    transition: var(--login-transition);
    z-index: 2;
}

.login-input-field:focus + .login-input-icon {
    color: var(--login-accent);
    transform: translateY(-50%) scale(1.1);
}

/* ===== ENHANCED BUTTONS ===== */
.login-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--login-space-xs);
    padding: 1.25rem 2rem;
    border: none;
    border-radius: var(--login-radius-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--login-transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-height: 56px;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--login-transition-slow);
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn-primary {
    background: linear-gradient(135deg, var(--login-accent) 0%, var(--login-success) 100%);
    color: var(--login-primary);
    box-shadow: var(--login-shadow);
}

.login-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--login-shadow-xl), var(--login-glow);
    background: linear-gradient(135deg, var(--login-accent-hover) 0%, var(--login-success) 100%);
}

.login-btn-primary:active {
    transform: translateY(-1px);
}

.login-btn-secondary {
    background: var(--login-bg-card);
    color: var(--login-text-primary);
    border: 1px solid var(--login-border);
}

.login-btn-secondary:hover {
    background: var(--login-bg-card-hover);
    border-color: var(--login-border-hover);
    transform: translateY(-2px);
}

/* ===== ENHANCED MESSAGES ===== */
.login-message {
    padding: 1rem 1.25rem;
    border-radius: var(--login-radius-lg);
    margin-bottom: var(--login-space);
    display: flex;
    align-items: center;
    gap: var(--login-space-xs);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: loginSlideInDown 0.5s ease-out;
    position: relative;
    overflow: hidden;
}

.login-message::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: currentColor;
}

.login-message-success {
    background: rgba(0, 217, 255, 0.1);
    color: var(--login-success);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.login-message-error {
    background: rgba(255, 107, 107, 0.1);
    color: var(--login-danger);
    border: 1px solid rgba(255, 107, 107, 0.2);
}

.login-message-warning {
    background: rgba(255, 184, 0, 0.1);
    color: var(--login-warning);
    border: 1px solid rgba(255, 184, 0, 0.2);
}

@keyframes loginSlideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== ENHANCED FEATURES SHOWCASE ===== */
.login-feature-item {
    display: flex;
    align-items: center;
    gap: var(--login-space-sm);
    padding: var(--login-space-sm);
    border-radius: var(--login-radius);
    transition: var(--login-transition);
    cursor: pointer;
}

.login-feature-item:hover {
    background: var(--login-bg-glass);
    transform: translateX(8px);
}

.login-feature-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--login-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--login-transition);
}

.login-feature-item:hover .login-feature-icon {
    transform: scale(1.1);
    box-shadow: var(--login-glow);
}

/* ===== ENHANCED TESTIMONIAL ===== */
.login-testimonial {
    background: var(--login-bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--login-border);
    border-radius: var(--login-radius-xl);
    padding: var(--login-space-lg);
    margin-bottom: var(--login-space-lg);
    transition: var(--login-transition);
    position: relative;
    overflow: hidden;
}

.login-testimonial:hover {
    transform: translateY(-4px);
    box-shadow: var(--login-shadow-xl);
}

.login-testimonial::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--login-accent);
    opacity: 0.3;
    font-family: serif;
}

/* ===== ENHANCED SECURITY ILLUSTRATION ===== */
.login-security-illustration {
    width: 100%;
    max-width: 400px;
    height: 400px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--login-bg-card) 0%, var(--login-bg-glass) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--login-border);
    border-radius: var(--login-radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: var(--login-transition);
}

.login-security-illustration:hover {
    transform: scale(1.02);
    box-shadow: var(--login-shadow-xl), var(--login-glow);
}

.login-security-icon {
    font-size: 4rem;
    color: var(--login-accent);
    margin-bottom: var(--login-space);
    animation: loginPulse 2s infinite;
}

@keyframes loginPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* ===== ENHANCED PASSWORD TOGGLE ===== */
.login-password-toggle {
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--login-text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--login-transition);
    z-index: 3;
    padding: 0.5rem;
    border-radius: var(--login-radius-sm);
}

.login-password-toggle:hover {
    color: var(--login-accent);
    background: var(--login-bg-glass);
}

/* ===== ENHANCED REMEMBER ME ===== */
.login-remember-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--login-space-lg);
}

.login-checkbox-container {
    display: flex;
    align-items: center;
    gap: var(--login-space-xs);
    cursor: pointer;
}

.login-checkbox {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--login-border);
    border-radius: var(--login-radius-sm);
    background: var(--login-bg-glass);
    cursor: pointer;
    transition: var(--login-transition);
    position: relative;
}

.login-checkbox:checked {
    background: var(--login-accent);
    border-color: var(--login-accent);
}

.login-checkbox:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--login-primary);
    font-size: 0.75rem;
    font-weight: bold;
}

.login-forgot-link {
    color: var(--login-accent);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--login-transition);
}

.login-forgot-link:hover {
    color: var(--login-accent-hover);
    text-decoration: underline;
}

/* ===== ENHANCED FOOTER LINKS ===== */
.login-footer-links {
    text-align: center;
    margin-top: var(--login-space-lg);
    padding-top: var(--login-space);
    border-top: 1px solid var(--login-border);
}

.login-footer-links a {
    color: var(--login-text-secondary);
    text-decoration: none;
    margin: 0 var(--login-space-sm);
    font-size: 0.875rem;
    transition: var(--login-transition);
}

.login-footer-links a:hover {
    color: var(--login-accent);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .login-logo h1 {
        font-size: 3rem;
    }
    
    .login-security-illustration {
        max-width: 300px;
        height: 300px;
    }
}

@media (max-width: 768px) {
    .login-logo h1 {
        font-size: 2.5rem;
    }
    
    .login-glass-card {
        padding: var(--login-space);
    }
    
    .login-input-field {
        padding: 1rem 1rem 1rem 3rem;
    }
    
    .login-btn {
        padding: 1rem 1.5rem;
    }
    
    .login-security-illustration {
        max-width: 250px;
        height: 250px;
    }
    
    .login-security-icon {
        font-size: 3rem;
    }
}

@media (max-width: 640px) {
    .login-logo h1 {
        font-size: 2rem;
    }
    
    .login-floating-shape {
        opacity: 0.2;
    }
    
    .login-testimonial {
        padding: var(--login-space);
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== LOADING STATES ===== */
.login-btn-loading {
    pointer-events: none;
    opacity: 0.7;
}

.login-btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: loginSpin 1s linear infinite;
}

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

/* ===== AUTO-FILL STYLING ===== */
.login-input-field:-webkit-autofill,
.login-input-field:-webkit-autofill:hover,
.login-input-field:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 30px var(--login-bg-card) inset !important;
    -webkit-text-fill-color: var(--login-text-primary) !important;
    border-color: var(--login-accent) !important;
}

/* ===== UTILITY CLASSES ===== */
.login-text-center { text-align: center; }
.login-text-left { text-align: left; }
.login-text-right { text-align: right; }

.login-mb-0 { margin-bottom: 0; }
.login-mb-sm { margin-bottom: var(--login-space-sm); }
.login-mb { margin-bottom: var(--login-space); }
.login-mb-lg { margin-bottom: var(--login-space-lg); }

.login-mt-0 { margin-top: 0; }
.login-mt-sm { margin-top: var(--login-space-sm); }
.login-mt { margin-top: var(--login-space); }
.login-mt-lg { margin-top: var(--login-space-lg); }

.login-hidden { display: none; }
.login-visible { display: block; }

.login-flex { display: flex; }
.login-flex-center { display: flex; align-items: center; justify-content: center; }
.login-flex-between { display: flex; align-items: center; justify-content: space-between; }

.login-w-full { width: 100%; }
.login-h-full { height: 100%; }