/* Modern Login CSS - 2025 Design Standards */
/* Featuring Glassmorphism, Micro-interactions, and Accessibility */

/* CSS Custom Properties (Design Tokens) */
:root {
    /* Color Palette */
    --primary-50: #fef7ed;
    --primary-100: #fdedd3;
    --primary-200: #fbd7a5;
    --primary-300: #f8b86d;
    --primary-400: #f59432;
    --primary-500: #f2740a;
    --primary-600: #e35d00;
    --primary-700: #bc4a00;
    --primary-800: #8b4513;
    --primary-900: #5d2e0a;
    
    /* Western Theme Colors */
    --western-brown: #8B4513;
    --western-tan: #D2B48C;
    --western-gold: #DAA520;
    --western-red: #8B0000;
    --western-black: #2F1B14;
    --western-cream: #F5F5DC;
    --western-saddle: #8B4513;
    --western-leather: #654321;
    --western-silver: #C0C0C0;
    --western-dust: #F4A460;
    
    /* Admin Theme Colors */
    --admin-primary: #8B0000;
    --admin-secondary: #DC143C;
    --admin-accent: #FF6347;
    --admin-dark: #2F1B14;
    --admin-light: #F5F5DC;
    
    /* Neutral Colors */
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-display: 'Playfair Display', Georgia, serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-backdrop: blur(8px);
    
    /* Animations */
    --animation-duration: 0.3s;
    --animation-timing: cubic-bezier(0.4, 0, 0.2, 1);
    --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--neutral-800);
    background: linear-gradient(135deg, 
        var(--western-brown) 0%, 
        var(--western-tan) 25%, 
        var(--western-dust) 50%, 
        var(--western-tan) 75%, 
        var(--western-brown) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Admin Theme Override */
body.admin-theme {
    background: linear-gradient(135deg, 
        var(--admin-dark) 0%, 
        var(--admin-primary) 25%, 
        var(--admin-secondary) 50%, 
        var(--admin-primary) 75%, 
        var(--admin-dark) 100%);
}

/* Background Elements */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, 
        rgba(255, 255, 255, 0.1), 
        rgba(255, 255, 255, 0.05));
    animation: float 20s ease-in-out infinite;
    backdrop-filter: blur(1px);
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 10%;
    animation-delay: -5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 20%;
    animation-delay: -10s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    top: 30%;
    right: 30%;
    animation-delay: -15s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-20px) rotate(120deg);
    }
    66% {
        transform: translateY(10px) rotate(240deg);
    }
}

/* Main Container */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-4);
    position: relative;
}

/* Login Card */
.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-3xl);
    box-shadow: var(--glass-shadow);
    padding: var(--space-8);
    position: relative;
    overflow: hidden;
    animation: slideUp 0.6s var(--animation-timing);
}

.admin-card {
    border-color: rgba(139, 0, 0, 0.3);
    box-shadow: 0 8px 32px 0 rgba(139, 0, 0, 0.2);
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.05) 100%);
    border-radius: var(--radius-3xl);
    z-index: -1;
}

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

/* Header */
.login-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.logo-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--western-gold), var(--western-brown));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    color: white;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.admin-icon {
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-secondary));
    animation: securityPulse 2s ease-in-out infinite;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shine 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes securityPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-lg);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 20px rgba(139, 0, 0, 0.3);
    }
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.brand-title {
    font-family: var(--font-family-display);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--western-brown);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: var(--space-1);
    animation: fadeIn 0.8s var(--animation-timing) 0.2s both;
}

.admin-card .brand-title {
    color: var(--admin-primary);
}

.brand-subtitle {
    font-size: var(--font-size-lg);
    color: var(--neutral-600);
    font-weight: 500;
    letter-spacing: 0.5px;
    animation: fadeIn 0.8s var(--animation-timing) 0.4s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Styles */
.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form-group {
    position: relative;
    animation: slideIn 0.6s var(--animation-timing) both;
}

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

.form-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--neutral-700);
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-icon {
    font-size: var(--font-size-lg);
    color: var(--western-brown);
    transition: color var(--animation-duration) var(--animation-timing);
}

.admin-card .form-icon {
    color: var(--admin-primary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: var(--space-4) var(--space-5);
    border: 2px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-base);
    color: var(--neutral-800);
    transition: all var(--animation-duration) var(--animation-timing);
    outline: none;
    backdrop-filter: blur(10px);
}

.form-input:focus {
    border-color: var(--western-gold);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.1);
    transform: translateY(-2px);
}

.admin-card .form-input:focus {
    border-color: var(--admin-accent);
    box-shadow: 0 0 0 3px rgba(255, 99, 71, 0.1);
}

.form-input::placeholder {
    color: var(--neutral-400);
    font-style: italic;
}

.form-input.error {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.05);
}

.input-focus-ring {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    transition: all var(--animation-duration) var(--animation-timing);
    pointer-events: none;
}

.input-wrapper.focused .input-focus-ring {
    border-color: var(--western-gold);
    box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.1);
}

.admin-card .input-wrapper.focused .input-focus-ring {
    border-color: var(--admin-accent);
    box-shadow: 0 0 0 3px rgba(255, 99, 71, 0.1);
}

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

.password-toggle {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--neutral-500);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--animation-duration) var(--animation-timing);
    z-index: 2;
}

.password-toggle:hover {
    color: var(--western-gold);
    background: rgba(218, 165, 32, 0.1);
}

.admin-card .password-toggle:hover {
    color: var(--admin-accent);
    background: rgba(255, 99, 71, 0.1);
}

.password-toggle:focus {
    outline: 2px solid var(--western-gold);
    outline-offset: 2px;
}

/* Error Messages */
.error-message {
    display: none;
    color: var(--error);
    font-size: var(--font-size-sm);
    margin-top: var(--space-1);
    padding-left: var(--space-1);
    animation: shake 0.5s var(--animation-timing);
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--space-4) 0;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    user-select: none;
}

.checkbox-input {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-sm);
    background: white;
    position: relative;
    transition: all var(--animation-duration) var(--animation-timing);
}

.checkbox-input:checked + .checkbox-custom {
    background: var(--western-gold);
    border-color: var(--western-gold);
}

.checkbox-input:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: bold;
}

.checkbox-label {
    font-size: var(--font-size-sm);
    color: var(--neutral-600);
}

.forgot-link {
    color: var(--western-brown);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--animation-duration) var(--animation-timing);
}

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

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--western-gold), var(--western-brown));
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--animation-duration) var(--animation-timing);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.admin-submit {
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-secondary));
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.submit-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

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

.submit-btn.loading .btn-text {
    opacity: 0;
}

.submit-btn.loading .btn-loading {
    opacity: 1;
}

.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    opacity: 0;
    transition: opacity var(--animation-duration) var(--animation-timing);
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Navigation */
.login-nav {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-6);
    flex-wrap: wrap;
}

.nav-btn {
    flex: 1;
    min-width: 120px;
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    color: var(--neutral-700);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--animation-duration) var(--animation-timing);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    backdrop-filter: blur(10px);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.nav-btn.secondary {
    background: linear-gradient(135deg, var(--neutral-100), var(--neutral-200));
}

.nav-btn.secondary:hover {
    background: linear-gradient(135deg, var(--neutral-200), var(--neutral-300));
}

/* Alerts */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 500;
    animation: slideDown 0.3s var(--animation-timing);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Security Notice */
.security-notice {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: rgba(139, 0, 0, 0.1);
    border: 1px solid rgba(139, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    color: var(--admin-primary);
    margin-bottom: var(--space-4);
    transition: all var(--animation-duration) var(--animation-timing);
}

.security-notice.active {
    background: rgba(139, 0, 0, 0.15);
    border-color: rgba(139, 0, 0, 0.3);
    animation: securityPulse 0.5s ease-in-out;
}

/* Security Warning */
.security-warning {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--admin-dark);
    color: white;
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: var(--z-modal);
    animation: modalSlide 0.3s var(--animation-timing);
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Animations */
.animate-in {
    animation: fadeInUp 0.6s var(--animation-timing) both;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: var(--space-2);
    }
    
    .login-card {
        padding: var(--space-6);
        margin: var(--space-2);
    }
    
    .brand-title {
        font-size: var(--font-size-3xl);
    }
    
    .logo-icon {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-2xl);
    }
    
    .form-input {
        padding: var(--space-3) var(--space-4);
    }
    
    .submit-btn {
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-base);
    }
    
    .nav-btn {
        min-width: 100px;
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    }
    
    .login-nav {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--space-4);
    }
    
    .brand-title {
        font-size: var(--font-size-2xl);
    }
    
    .brand-subtitle {
        font-size: var(--font-size-base);
    }
    
    .form-group {
        margin-bottom: var(--space-4);
    }
    
    .form-options {
        flex-direction: column;
        gap: var(--space-3);
        align-items: flex-start;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .login-card {
        border: 2px solid var(--neutral-800);
        background: rgba(255, 255, 255, 0.95);
    }
    
    .form-input {
        border: 2px solid var(--neutral-600);
    }
    
    .submit-btn {
        border: 2px solid var(--neutral-800);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .bg-shape {
        animation: none;
    }
    
    .logo-icon {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .background-container,
    .login-nav {
        display: none;
    }
    
    .login-card {
        box-shadow: none;
        border: 1px solid var(--neutral-300);
        background: white;
    }
}

/* Focus Management */
.focus-visible {
    outline: 2px solid var(--western-gold);
    outline-offset: 2px;
}

/* Loading States */
.loading {
    pointer-events: none;
    opacity: 0.7;
}

/* Success States */
.success {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.05);
}

/* Accessibility Improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--western-brown);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: var(--z-tooltip);
}

.skip-link:focus {
    top: 6px;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --neutral-50: #0a0a0a;
        --neutral-100: #171717;
        --neutral-200: #262626;
        --neutral-300: #404040;
        --neutral-400: #525252;
        --neutral-500: #737373;
        --neutral-600: #a3a3a3;
        --neutral-700: #d4d4d4;
        --neutral-800: #e5e5e5;
        --neutral-900: #f5f5f5;
    }
    
    .form-input {
        background: rgba(0, 0, 0, 0.3);
        color: var(--neutral-100);
    }
    
    .form-input::placeholder {
        color: var(--neutral-400);
    }
}