/* Modern Login Page Styles */

/* Base Variables */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-light: #f9fafb;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-muted: #f1f5f9;
    --bg-dark: #0f172a;
    
    --border-color: #e2e8f0;
    --border-focus: var(--primary-color);
    --border-error: var(--error-color);
    
    --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);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Auth Page Layout */
.auth-page {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow: hidden;
}

/* Animated Background */
.auth-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -2;
    background: linear-gradient(135deg, 
        #667eea 0%, 
        #764ba2 25%, 
        #f093fb 50%, 
        #f5576c 75%, 
        #4facfe 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

.auth-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.8) 0%,
        rgba(118, 75, 162, 0.8) 50%,
        rgba(240, 147, 251, 0.8) 100%);
    backdrop-filter: blur(40px);
}

/* Floating Shapes Animation */
.floating-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: float 20s infinite linear;
}

.shape-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 10%;
    animation-delay: -5s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 15%;
    animation-delay: -10s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    bottom: 20%;
    left: 20%;
    animation-delay: -15s;
}

/* Auth Container */
.auth-container {
    width: 100%;
    max-width: 1200px;
    position: relative;
    z-index: 1;
}

.auth-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* Auth Header */
.auth-header {
    width: 100%;
    max-width: 400px;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
    box-shadow: var(--glass-shadow);
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.back-btn svg {
    transition: transform var(--transition-fast);
}

.back-btn:hover svg {
    transform: translateX(-2px);
}

/* Auth Card with Glassmorphism */
.auth-card {
    width: 100%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

.auth-card-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
}

.auth-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-card-body {
    padding: 1rem 2rem 2rem;
}

/* Form Styles */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.label-icon {
    color: var(--text-muted);
    transition: color var(--transition-normal);
}

.form-group.focused .label-icon {
    color: var(--primary-color);
}

/* Input Container */
.input-container {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-input.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* Input Border Animation */
.input-border {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.form-group.focused .input-border {
    width: 100%;
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

/* Field Errors */
.field-error {
    display: none;
    color: var(--error-color);
    font-size: 0.8125rem;
    margin-top: 0.375rem;
    animation: slideDown 0.3s ease;
}

/* Form Row */
.form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Custom Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    position: relative;
    transition: all var(--transition-normal);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0.375rem;
    height: 0.625rem;
    border: 2px solid white;
    border-top: none;
    border-left: none;
    transform: translate(-50%, -60%) rotate(45deg) scale(0);
    transition: transform var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    transform: translate(-50%, -60%) rotate(45deg) scale(1);
}

.checkbox-text {
    user-select: none;
}

/* Forgot Password Link */
.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    outline: none;
    user-select: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
    width: 100%;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

/* Button Loading State */
.btn-loading {
    display: none;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    animation: spin 1s linear infinite;
}

/* Social Login */
.social-login {
    margin-top: 1.5rem;
}

.divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

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

.divider span {
    background: var(--bg-primary);
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-social {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    justify-content: flex-start;
    padding-left: 1rem;
}

.btn-social:hover {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
}

.btn-google svg {
    flex-shrink: 0;
}

.btn-facebook {
    color: #1877f2;
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.register-prompt {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.register-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.register-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Business CTA */
.business-cta {
    width: 100%;
    max-width: 400px;
}

.cta-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--glass-shadow);
    animation: slideUp 0.8s ease-out;
}

.cta-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.cta-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

/* Animations */
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.7; }
    25% { transform: translateY(-20px) rotate(90deg); opacity: 1; }
    50% { transform: translateY(-40px) rotate(180deg); opacity: 0.8; }
    75% { transform: translateY(-20px) rotate(270deg); opacity: 1; }
}

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

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

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

.shake {
    animation: shake 0.5s ease-in-out;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 500;
    z-index: 9999;
    animation: slideInRight 0.3s ease;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.toast.success {
    background: linear-gradient(135deg, var(--success-color), #059669);
}

.toast.error {
    background: linear-gradient(135deg, var(--error-color), #dc2626);
}

.toast.info {
    background: linear-gradient(135deg, var(--info-color), #2563eb);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Demo Button */
.demo-btn {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s infinite;
}

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

/* Responsive Design */
@media (max-width: 640px) {
    .auth-page {
        padding: 0.5rem;
    }
    
    .auth-card {
        max-width: 100%;
        margin: 0 0.5rem;
    }
    
    .auth-card-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .auth-card-body {
        padding: 1rem 1.5rem 2rem;
    }
    
    .auth-title {
        font-size: 1.5rem;
    }
    
    .form-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .social-buttons {
        gap: 0.5rem;
    }
    
    .btn-social {
        justify-content: center;
        padding-left: 1.5rem;
    }
    
    .shape {
        display: none;
    }
}

@media (max-width: 480px) {
    .back-btn {
        padding: 0.625rem 0.875rem;
        font-size: 0.875rem;
    }
    
    .form-input {
        padding: 0.75rem 0.875rem;
        font-size: 0.875rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }
    
    .btn-large {
        padding: 0.875rem 1.5rem;
    }
    
    .cta-card {
        padding: 1.25rem;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --text-muted: #9ca3af;
        
        --bg-primary: #1f2937;
        --bg-secondary: #111827;
        --bg-muted: #374151;
        
        --border-color: #374151;
    }
    
    .auth-card {
        background: rgba(31, 41, 55, 0.95);
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .form-input {
        background: rgba(31, 41, 55, 0.8);
        color: var(--text-primary);
    }
    
    .form-input:focus {
        background: rgba(31, 41, 55, 0.95);
    }
    
    .cta-card {
        background: rgba(31, 41, 55, 0.9);
    }
    
    .divider span {
        background: var(--bg-primary);
    }
}

/* Print styles */
@media print {
    .auth-background,
    .floating-shapes,
    .business-cta {
        display: none;
    }
    
    .auth-page {
        background: white;
    }
    
    .auth-card {
        background: white;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}