/* Reset and Base Styles - Assuming index.css handles most of this. */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Copied V5 Variables from index.css for standalone use if index.css is not linked or to ensure overrides */
    /* Colors */
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #7c3aed;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --dark-color: #1a202c;
    --light-color: #f7fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-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;

    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* === V5: PREMIUM REDESIGN VARIABLES === */
    --bg-dark: #0A0A10;
    --bg-card: #14141c;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: #9333ea;
    --accent-glow: #9333ea;
    --accent-cyan: #22d3ee;
    --accent-orange: #f59e0b;
    --text-primary: #f1f5f9;
    --text-secondary: #a1a1aa;

    /* RGB versions for rgba() */
    --error-color-rgb: 239, 68, 68;
    --success-color-rgb: 16, 185, 129;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    background-color: var(--bg-dark); /* V5 Body Background */
    color: var(--text-primary);       /* V5 Body Text Color */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.hidden {
    display: none !important;
}

/* V5 Button Styles (from index.css) - ensure .btn-primary in auth.html picks this up */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid transparent;
    border-radius: var(--border-radius-lg);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    will-change: transform;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}


.btn-primary {
    background: var(--accent-glow);
    color: white;
    box-shadow: 0 0 20px rgba(147, 51, 234, 0.4), 0 4px 10px rgba(0, 0, 0, 0.2);
    border-color: var(--accent-glow);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 30px rgba(147, 51, 234, 0.6), 0 6px 15px rgba(0, 0, 0, 0.3);
}

.btn-large { /* For consistency if used */
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-xl);
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--accent-cyan); /* V5 link color */
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast), text-decoration var(--transition-fast);
}

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

/* Auth Styles - V5 Theming */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-lg); /* Increased padding for floating navbar */
    padding-top: 120px; /* Space for navbar */
    position: relative; /* For z-indexing above aurora */
    z-index: 1;
}

/* Removed .auth-background and .auth-shapes styles as V5 aurora is used from auth.html */

.auth-content {
    display: grid;
    grid-template-columns: 1fr; /* Default to 1 column for mobile */
    gap: var(--spacing-2xl); /* V5 spacing */
    max-width: 900px; /* Max width for content */
    width: 100%;
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) { /* Adjust breakpoint as needed */
    .auth-content {
        grid-template-columns: 1.2fr 1fr; /* Re-apply two-column layout for wider screens */
         max-width: 1000px;
    }
}


.auth-card {
    background: var(--bg-card); /* V5 Card Background */
    border: 1px solid var(--border-color); /* V5 Border */
    border-radius: var(--border-radius-xl); /* V5 Border Radius */
    padding: var(--spacing-2xl); /* V5 Spacing */
    box-shadow: var(--shadow-xl); /* V5 Shadow */
    backdrop-filter: blur(10px); /* Optional: Glassmorphism effect */
    -webkit-backdrop-filter: blur(10px);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl); /* V5 Spacing */
}

.auth-header h1 {
    font-size: var(--font-size-2xl); /* V5 Typography */
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary); /* V5 Text Color */
}

.auth-header p {
    color: var(--text-secondary); /* V5 Text Color */
    font-size: var(--font-size-lg);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg); /* V5 Spacing */
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 500; /* V5 font weight */
    color: var(--text-secondary); /* V5 Text Color */
}

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

.input-wrapper i.fa-user,
.input-wrapper i.fa-lock,
.input-wrapper i.fa-user-shield,
.input-wrapper i.fa-envelope {
    position: absolute;
    left: var(--spacing-md);
    color: var(--gray-400); /* Keep or adjust to a V5 secondary icon color */
    z-index: 1;
}

.input-wrapper input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) var(--spacing-3xl);
    border: 1px solid var(--border-color); /* V5 Border */
    border-radius: var(--border-radius-lg); /* V5 Border Radius */
    font-family: inherit;
    font-size: var(--font-size-base);
    background: var(--bg-dark); /* V5 Input Background */
    color: var(--text-primary); /* V5 Input Text Color */
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--accent-glow); /* V5 Accent Focus */
    box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.2); /* V5 Focus Shadow */
}

.input-wrapper input::placeholder {
    color: var(--gray-500);
}

.toggle-password {
    position: absolute;
    right: 0;
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--spacing-md);
    transition: color var(--transition-fast);
}

.toggle-password:hover {
    color: var(--accent-cyan); /* V5 Accent Hover */
}

.btn-auth {
    padding: var(--spacing-md) var(--spacing-lg); /* V5 Button Padding */
    font-size: var(--font-size-lg); /* V5 Button Font Size */
    margin-top: var(--spacing-md);
    /* .btn-primary styles from above will apply for background, color, shadow etc. */
}

.auth-divider {
    text-align: center;
    position: relative;
    margin: var(--spacing-lg) 0;
}

.auth-divider:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color); /* V5 Border Color */
}

.auth-divider span {
    background: var(--bg-card); /* Match card background */
    padding: 0 var(--spacing-md);
    color: var(--text-secondary); /* V5 Text Color */
    position: relative;
    z-index: 1;
}

.auth-switch {
    text-align: center;
}
.auth-switch p {
    color: var(--text-secondary); /* V5 Text Color */
    margin-bottom: var(--spacing-sm);
}
/* .auth-switch .btn-link styles are covered by global .btn-link */


/* Message and Spinner Styling - V5 Theme */
.loading-spinner {
    text-align: center;
    padding: var(--spacing-lg);
}
.loading-spinner p {
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color); /* V5 Border Color */
    border-top: 4px solid var(--accent-glow); /* V5 Accent Color */
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

.error-message,
.success-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    margin-top: var(--spacing-md);
    animation: fadeIn 0.5s ease;
    border-width: 1px;
    border-style: solid;
}

.error-message {
    background: rgba(var(--error-color-rgb), 0.1); /* V5 Error Background */
    color: var(--error-color); /* V5 Error Text Color */
    border-color: rgba(var(--error-color-rgb), 0.3); /* V5 Error Border */
}
.error-message i { color: var(--error-color); }

.success-message {
    background: rgba(var(--success-color-rgb), 0.1); /* V5 Success Background */
    color: var(--success-color); /* V5 Success Text Color */
    border-color: rgba(var(--success-color-rgb), 0.3); /* V5 Success Border */
}
.success-message i { color: var(--success-color); }

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

/* Auth Features Preview - V5 Theme */
.auth-features {
    background: rgba(20, 20, 28, 0.7); /* Similar to V5 orbiting cards, slightly more opaque */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl); /* V5 Border Radius */
    padding: var(--spacing-xl); /* V5 Spacing */
    color: var(--text-primary);
}

.auth-features h3 {
    font-size: var(--font-size-xl); /* V5 Typography */
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-align: left; /* Align to left for a cleaner look */
    color: var(--text-primary);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md); /* V5 Spacing */
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0; /* Minimal padding for cleaner list */
    /* Remove background and border for a flatter list style within the card */
}

.feature-item i {
    font-size: var(--font-size-lg); /* V5 Icon Size */
    color: var(--accent-cyan); /* V5 Accent Color */
    width: 24px; /* Ensure consistent icon alignment */
    text-align: center;
}
.feature-item span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}


/* Remove conflicting styles from old theme if any - these might not be explicitly in style.css but as a cleanup measure */
.auth-body { /* No longer used */
    background: none;
}

.navbar-auth { /* Replaced by V5 navbar, styles now in index.css or copied above if needed */
    display:none; /* Hide if HTML not removed, but HTML is updated */
}

/* Other specific styles from the old theme that might conflict */
/* e.g., if there were specific styles for .hero, .features, .about, .cta, .footer, admin styles, these are not relevant to auth.html and style.css for auth page. */
/* Keeping style.css focused on auth page elements. */

/* Responsive Adjustments */
@media (max-width: 768px) {
    .auth-content {
        grid-template-columns: 1fr; /* Stack auth card and features preview */
    }
    .auth-features {
         margin-top: var(--spacing-xl); /* Add space when stacked */
    }
}