/* Signup Page Styles - SolTecSol AI Description Generator */

/* Base styles and CSS reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --warning-color: #f97316;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --border-focus: #3b82f6;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    min-height: 100vh;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Header styles */
.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Navigation */
.nav-link {
    position: fixed;
    top: 20px;
    right: 20px;
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 1000;
}

.nav-link:hover {
    color: var(--primary-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Form Container */
.form-container {
    background: var(--bg-primary);
    border-radius: 1rem;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: var(--bg-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input.error {
    border-color: var(--danger-color);
}

.form-input.success {
    border-color: var(--secondary-color);
}

/* Button Styles */
.btn {
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-primary:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

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

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn-full {
    width: 100%;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: 0.5rem;
    padding: 0.25rem;
    margin-bottom: 2rem;
}

.tab-button {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.tab-button.active {
    background: var(--bg-primary);
    color: var(--primary-color);
    box-shadow: var(--shadow);
}

/* Form Tabs */
.form-tab {
    display: none;
}

.form-tab.active {
    display: block;
}

/* Error and Success Messages */
.message {
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

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

.message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.message.warning {
    background: rgba(249, 115, 22, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(249, 115, 22, 0.2);
}

/* Field Validation */
.field-error {
    color: var(--danger-color);
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: none;
}

.field-error.show {
    display: block;
}

/* Loading Spinner */
.loading-spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-radius: 50%;
    border-top-color: currentColor;
    animation: spin 0.8s ease-in-out infinite;
}

.loading-spinner.show {
    display: inline-block;
}

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

/* Notification styles */
.notification {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    color: white;
    font-weight: 500;
    z-index: 9999;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

.notification.success {
    background: var(--secondary-color);
}

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

.notification.info {
    background: var(--primary-color);
}

@keyframes slideIn {
    from {
        transform: translateX(-50%) translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

/* Language Selector */
.language-selector {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
}

.language-select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
}

/* Password Strength Indicator */
.password-strength {
    margin-top: 0.5rem;
    display: none;
}

.password-strength.show {
    display: block;
}

.strength-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.strength-fill {
    height: 100%;
    border-radius: 2px;
    transition: all 0.3s ease;
    width: 0%;
}

.strength-fill.weak {
    background: var(--danger-color);
    width: 25%;
}

.strength-fill.fair {
    background: var(--warning-color);
    width: 50%;
}

.strength-fill.good {
    background: var(--accent-color);
    width: 75%;
}

.strength-fill.strong {
    background: var(--secondary-color);
    width: 100%;
}

.strength-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .form-container {
        padding: 2rem 1.5rem;
    }

    .header h1 {
        font-size: 2rem;
    }

    .language-selector {
        position: static;
        text-align: center;
        margin-bottom: 1rem;
    }
}

/* User info display */
.user-info {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: none;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    display: flex !important;
}

.modal-content {
    background: white;
    border-radius: 1rem;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-content h2 {
    padding: 1.5rem 2rem;
    margin: 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.5rem;
}

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
    color: var(--text-primary);
    line-height: 1.6;
}

.modal-body h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.modal-body p {
    margin-bottom: 1rem;
}

.modal-body ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label span {
    user-select: none;
}