@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --border-color: #334155;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle i {
    font-size: 20px;
    color: var(--text-primary);
}

.container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

h1 {
    color: var(--text-primary);
    margin-bottom: 10px;
    text-align: center;
    font-size: 32px;
}

p {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 30px;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Checkbox styling */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 10px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.checkbox-label span {
    color: var(--text-secondary);
    font-size: 14px;
}

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

small {
    display: block;
    margin-top: 5px;
    color: var(--text-muted);
    font-size: 12px;
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    margin-bottom: 10px;
    box-shadow: var(--shadow-sm);
}

.btn i {
    margin-right: 8px;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Ensure buttons used as links maintain proper text color */
a.btn-primary {
    color: white !important;
    text-decoration: none !important;
}

a.btn-primary:hover {
    color: white !important;
    text-decoration: none !important;
}

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

.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-primary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Ensure buttons used as links maintain proper text color */
a.btn-secondary {
    color: var(--text-primary) !important;
    text-decoration: none !important;
}

a.btn-secondary:hover {
    color: var(--text-primary) !important;
    text-decoration: none !important;
}

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    color: white;
    transform: translateY(-2px);
}

a.btn-danger {
    color: white !important;
    text-decoration: none !important;
}

a.btn-danger:hover {
    color: white !important;
    text-decoration: none !important;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #059669;
    color: white;
    transform: translateY(-2px);
}

a.btn-success {
    color: white !important;
    text-decoration: none !important;
}

a.btn-success:hover {
    color: white !important;
    text-decoration: none !important;
}

.btn-google {
    background: #ffffff;
    color: #1f1f1f;
    border: 1px solid #dadce0;
}

[data-theme="light"] .btn-google {
    background: #ffffff;
    color: #1f1f1f;
    border: 1px solid #dadce0;
}

.btn-google:hover {
    background: #f8f9fa;
    color: #1f1f1f;
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-google i {
    color: #4285f4;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 24px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 16px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.button-group {
    margin-top: 20px;
}

/* Badge Styles */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge i {
    font-size: 12px;
}

.error-text {
    color: var(--error);
    display: flex;
    align-items: center;
    gap: 8px;
}

.message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 8px;
    display: none;
    font-size: 14px;
}

.message.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
    display: block;
}

.message.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
    display: block;
}

.text-center {
    text-align: center;
    margin-top: 20px;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

a:visited {
    color: var(--accent-primary);
}

a:visited:hover {
    color: var(--accent-secondary);
}

.info {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.info p {
    margin-bottom: 10px;
    font-size: 14px;
}

.user-info {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.user-info h2 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 20px;
}

.user-info p {
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-align: left;
}

.user-info strong {
    color: var(--text-primary);
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.badge-error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

/* Avatar Upload Section */
.avatar-section {
    margin: 30px 0;
    padding: 25px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.avatar-display {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
}

.avatar-preview {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 3px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.avatar-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 10px;
}

.avatar-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0;
}

.hidden {
    display: none !important;
}

/* Avatar upload loading state */
.avatar-uploading {
    position: relative;
    opacity: 0.6;
    pointer-events: none;
}

.avatar-uploading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive */
@media (max-width: 480px) {
    .auth-card {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 28px;
    }
    
    .avatar-display {
        width: 120px;
        height: 120px;
    }
    
    .avatar-controls {
        flex-direction: column;
    }
    
    .avatar-controls button {
        width: 100%;
    }
}

/* Password Toggle */
.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper input[type="password"],
.password-wrapper input[type="text"] {
    padding-right: 50px;
}

.password-toggle {
    position: absolute;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
    font-size: 18px;
}

.password-toggle:hover {
    color: var(--accent-primary);
}

.password-toggle i {
    pointer-events: none;
}