/* Design System Variables */
:root {
    --qc-purple-primary: #6a3de8;
    --qc-purple-dark: #5227cf;
    --qc-purple-light: #8a65f0;
    --qc-purple-subtle: #f5f0ff;

    --qc-success: #10b981;
    --qc-danger: #ef4444;

    --qc-neutral-50: #f9fafb;
    --qc-neutral-100: #f3f4f6;
    --qc-neutral-200: #e5e7eb;
    --qc-neutral-300: #d1d5db;
    --qc-neutral-500: #6b7280;
    --qc-neutral-600: #4b5563;
    --qc-neutral-700: #374151;
    --qc-neutral-900: #111827;

    --qc-font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --qc-radius-lg: 0.75rem;
    --qc-radius-xl: 1rem;
    --qc-radius-2xl: 1.5rem;

    --qc-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    --qc-spacing-2: 0.5rem;
    --qc-spacing-3: 0.75rem;
    --qc-spacing-4: 1rem;
    --qc-spacing-6: 1.5rem;
    --qc-spacing-8: 2rem;

    --qc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
body {
    font-family: var(--qc-font-family);
    background: var(--qc-neutral-50);
}

/* Simplified Signup Container */
.signup-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--qc-spacing-8);
}

/* Header Section */
.signup-header {
    text-align: center;
    margin-bottom: var(--qc-spacing-8);
}

.signup-header__title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--qc-neutral-900);
    margin-bottom: var(--qc-spacing-2);
}

.signup-header__subtitle {
    color: var(--qc-neutral-600);
    font-size: 1rem;
}

/* Progress Indicator */
.progress-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--qc-spacing-8);
    padding: var(--qc-spacing-6) 0;
}

.progress-indicator__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.progress-indicator__step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: var(--qc-spacing-2);
    transition: var(--qc-transition);
    border: 2px solid var(--qc-neutral-300);
    background: var(--qc-neutral-100);
    color: var(--qc-neutral-500);
}

.progress-indicator__step-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--qc-neutral-500);
    transition: var(--qc-transition);
    white-space: nowrap;
}

.progress-indicator__step--active .progress-indicator__step-number {
    background: var(--qc-purple-primary);
    border-color: var(--qc-purple-primary);
    color: white;
    box-shadow: 0 0 0 4px rgba(106, 61, 232, 0.1);
}

.progress-indicator__step--active .progress-indicator__step-label {
    color: var(--qc-purple-primary);
    font-weight: 600;
}

.progress-indicator__step--completed .progress-indicator__step-number {
    background: var(--qc-success);
    border-color: var(--qc-success);
    color: white;
}

.progress-indicator__step--completed .progress-indicator__step-number::before {
    content: "✓";
    font-size: 0.875rem;
}

.progress-indicator__step--completed .progress-indicator__step-label {
    color: var(--qc-success);
}

.progress-indicator__connector {
    width: 60px;
    height: 2px;
    background: var(--qc-neutral-300);
    margin: 0 var(--qc-spacing-4);
    position: relative;
    top: -10px;
}

.progress-indicator__connector--completed {
    background: var(--qc-success);
}

/* Form Container */
.signup-form {
    background: white;
    border-radius: var(--qc-radius-2xl);
    padding: var(--qc-spacing-8);
    box-shadow: var(--qc-shadow-lg);
    border: 1px solid var(--qc-neutral-200);
    max-width: 500px;
    width: 100%;
}

/* Form Description */
.form-description {
    margin-bottom: var(--qc-spacing-6);
    padding: var(--qc-spacing-4);
    background: var(--qc-purple-subtle);
    border-radius: var(--qc-radius-lg);
    border-left: 4px solid var(--qc-purple-primary);
}

.form-description p {
    margin: 0;
    color: var(--qc-neutral-700);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Form Fields */
.form-field {
    margin-bottom: var(--qc-spacing-6);
}

.form-field:last-of-type {
    margin-bottom: var(--qc-spacing-8);
}

.form-label {
    display: block;
    margin-bottom: var(--qc-spacing-3);
    font-weight: 600;
    color: var(--qc-neutral-700);
    font-size: 1rem;
    line-height: 1.4;
}

.form-input {
    width: 100%;
    padding: var(--qc-spacing-4) var(--qc-spacing-4);
    border: 2px solid var(--qc-neutral-200);
    border-radius: var(--qc-radius-lg);
    font-size: 1rem;
    line-height: 1.5;
    transition: var(--qc-transition);
    background: var(--qc-neutral-50);
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--qc-purple-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(106, 61, 232, 0.1);
}

.form-input--invalid {
    border-color: var(--qc-danger);
    background: rgba(239, 68, 68, 0.05);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input--valid {
    border-color: var(--qc-success);
    background: rgba(16, 185, 129, 0.05);
}

.form-input--valid:focus {
    border-color: var(--qc-success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-error {
    color: var(--qc-danger);
    font-size: 0.875rem;
    margin-top: var(--qc-spacing-2);
    display: none;
    font-weight: 500;
    line-height: 1.4;
    padding: var(--qc-spacing-2) var(--qc-spacing-3);
    background: rgba(239, 68, 68, 0.05);
    border-radius: var(--qc-radius-lg);
    border-left: 3px solid var(--qc-danger);
}

.form-input--invalid + .form-error {
    display: block;
}

/* Enhanced error positioning */
.form-field {
    position: relative;
}

.form-field .form-error {
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

.required-indicator {
    color: var(--qc-danger);
    font-weight: bold;
    margin-left: 4px;
}

/* Form Grid */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--qc-spacing-4);
}

/* Checkbox Field */
.checkbox-field {
    display: flex;
    align-items: flex-start;
    gap: var(--qc-spacing-3);
}

.checkbox-input {
    width: 18px;
    height: 18px;
    margin: 0;
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--qc-neutral-700);
    margin: 0;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--qc-purple-primary);
    text-decoration: none;
    font-weight: 600;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

/* Submit Button */
.submit-button {
    width: 100%;
    padding: var(--qc-spacing-4) var(--qc-spacing-6);
    background: linear-gradient(135deg, var(--qc-purple-primary), var(--qc-purple-light));
    color: white;
    border: none;
    border-radius: var(--qc-radius-lg);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--qc-transition);
    margin-bottom: var(--qc-spacing-6);
}

.submit-button:hover {
    background: linear-gradient(135deg, var(--qc-purple-dark), var(--qc-purple-primary));
    transform: translateY(-2px);
}

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

/* Login Link */
.login-link {
    text-align: center;
    color: var(--qc-neutral-600);
    font-size: 0.95rem;
}

.login-link a {
    color: var(--qc-purple-primary);
    text-decoration: none;
    font-weight: 600;
}

.login-link a:hover {
    text-decoration: underline;
}

/* Success Message Styles */
.success-message {
    text-align: center;
    padding: var(--qc-spacing-8);
    background: white;
    border-radius: var(--qc-radius-2xl);
    border: 1px solid var(--qc-neutral-200);
    box-shadow: var(--qc-shadow-lg);
}

.success-message__icon {
    margin-bottom: var(--qc-spacing-6);
}

.success-message__icon .material-icons {
    font-size: 4rem;
    color: var(--qc-success);
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    padding: var(--qc-spacing-4);
    width: 80px;
    height: 80px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.success-message__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--qc-neutral-900);
    margin-bottom: var(--qc-spacing-4);
}

.success-message__description {
    font-size: 1.125rem;
    color: var(--qc-neutral-600);
    line-height: 1.6;
    margin-bottom: var(--qc-spacing-8);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.success-message__description strong {
    color: var(--qc-purple-primary);
    font-weight: 600;
}

.success-message__actions {
    margin-bottom: var(--qc-spacing-6);
}

.resend-button {
    display: inline-flex;
    align-items: center;
    gap: var(--qc-spacing-2);
    padding: var(--qc-spacing-3) var(--qc-spacing-6);
    background: var(--qc-neutral-100);
    color: var(--qc-neutral-700);
    border: 2px solid var(--qc-neutral-300);
    border-radius: var(--qc-radius-lg);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--qc-transition);
    margin-bottom: var(--qc-spacing-4);
}

.resend-button:hover {
    background: var(--qc-neutral-200);
    border-color: var(--qc-neutral-400);
    transform: translateY(-1px);
}

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

.resend-button--loading {
    opacity: 0.8;
    cursor: wait;
}

.resend-button--success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--qc-success);
    color: var(--qc-success);
}

.success-message__help {
    font-size: 0.9rem;
    color: var(--qc-neutral-500);
    margin: 0;
    line-height: 1.5;
}

/* Progressive disclosure styles */
.hidden {
    display: none;
}

#individualForm {
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
    opacity: 1;
    transform: translateY(0);
}

#individualForm.fade-in {
    opacity: 0;
    transform: translateY(10px);
}

#individualForm.fade-in.show {
    opacity: 1;
    transform: translateY(0);
}

.success-message {
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

/* Enhanced Responsive Design */
@media (max-width: 768px) {
    .signup-container {
        padding: var(--qc-spacing-4);
        min-height: 100vh;
        align-items: flex-start;
        padding-top: var(--qc-spacing-6);
    }

    .signup-form {
        padding: var(--qc-spacing-6);
        margin: 0;
        width: 100%;
        max-width: none;
        border-radius: var(--qc-radius-xl);
    }

    .signup-header__title {
        font-size: 1.75rem;
        line-height: 1.2;
    }

    .signup-header__subtitle {
        font-size: 0.95rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--qc-spacing-3);
    }

    .form-field {
        margin-bottom: var(--qc-spacing-5);
    }

    .form-description {
        margin-bottom: var(--qc-spacing-5);
        padding: var(--qc-spacing-3);
    }

    .form-description p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* Enhanced form inputs for mobile */
    .form-input {
        padding: var(--qc-spacing-4);
        font-size: 1rem; /* Prevent zoom on iOS */
        min-height: 44px; /* Minimum touch target size */
        border-radius: var(--qc-radius-lg);
    }

    .form-label {
        font-size: 0.95rem;
        margin-bottom: var(--qc-spacing-2);
    }

    /* Enhanced checkbox for mobile */
    .checkbox-input {
        width: 20px;
        height: 20px;
        min-width: 20px;
        min-height: 20px;
    }

    .checkbox-field {
        gap: var(--qc-spacing-3);
        align-items: flex-start;
        padding: var(--qc-spacing-2) 0;
    }

    .checkbox-label {
        font-size: 0.9rem;
        line-height: 1.5;
        touch-action: manipulation;
    }

    /* Enhanced submit button for mobile */
    .submit-button {
        padding: var(--qc-spacing-4) var(--qc-spacing-6);
        font-size: 1.1rem;
        min-height: 48px; /* Larger touch target */
        margin-bottom: var(--qc-spacing-6);
        touch-action: manipulation;
    }

    /* Mobile progress indicator adjustments */
    .progress-indicator {
        padding: var(--qc-spacing-4) 0;
        margin-bottom: var(--qc-spacing-6);
        flex-wrap: nowrap;
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .progress-indicator::-webkit-scrollbar {
        display: none;
    }

    .progress-indicator__step {
        flex-shrink: 0;
        min-width: 80px;
    }

    .progress-indicator__step-number {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
        margin-bottom: var(--qc-spacing-2);
    }

    .progress-indicator__step-label {
        font-size: 0.8rem;
        white-space: nowrap;
        text-align: center;
    }

    .progress-indicator__connector {
        width: 30px;
        margin: 0 var(--qc-spacing-2);
        top: -8px;
    }

    /* Mobile success message adjustments */
    .success-message {
        padding: var(--qc-spacing-6);
        margin: 0;
        width: 100%;
        max-width: none;
        border-radius: var(--qc-radius-xl);
    }

    .success-message__icon .material-icons {
        font-size: 3rem;
        width: 64px;
        height: 64px;
        padding: var(--qc-spacing-3);
    }

    .success-message__title {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: var(--qc-spacing-3);
    }

    .success-message__description {
        font-size: 1rem;
        line-height: 1.6;
        margin-bottom: var(--qc-spacing-6);
    }

    .resend-button {
        padding: var(--qc-spacing-4) var(--qc-spacing-5);
        font-size: 0.95rem;
        min-height: 44px; /* Minimum touch target size */
        touch-action: manipulation;
        width: 100%;
        max-width: 280px;
    }

    .login-link {
        font-size: 0.9rem;
        padding: var(--qc-spacing-2) 0;
    }
}

/* Enhanced mobile responsiveness for smaller screens */
@media (max-width: 480px) {
    .signup-container {
        padding: var(--qc-spacing-3);
        padding-top: var(--qc-spacing-4);
    }

    .signup-form {
        padding: var(--qc-spacing-5);
    }

    .signup-header__title {
        font-size: 1.6rem;
    }

    .form-description {
        padding: var(--qc-spacing-3);
        margin-bottom: var(--qc-spacing-4);
    }

    .progress-indicator__step {
        min-width: 70px;
    }

    .progress-indicator__step-number {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }

    .progress-indicator__step-label {
        font-size: 0.75rem;
    }

    .progress-indicator__connector {
        width: 25px;
        margin: 0 var(--qc-spacing-1);
    }

    .success-message {
        padding: var(--qc-spacing-5);
    }

    .success-message__title {
        font-size: 1.4rem;
    }

    .success-message__description {
        font-size: 0.95rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .form-input {
        border-width: 2px;
    }

    .form-input:focus {
        border-width: 3px;
    }

    .submit-button {
        border: 2px solid transparent;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .progress-indicator__step,
    .form-input,
    .submit-button {
        transition: none;
    }
}

/* Screen reader only content */
.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;
}

/* Enhanced focus visible support for better keyboard navigation */
.form-input:focus-visible,
.submit-button:focus-visible,
.resend-button:focus-visible,
.checkbox-input:focus-visible {
    outline: 3px solid var(--qc-purple-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 6px rgba(106, 61, 232, 0.2);
}

/* Enhanced focus styles for better visibility */
.form-input:focus,
.submit-button:focus,
.resend-button:focus,
.checkbox-input:focus {
.checkbox-input:focus {
    outline: 2px solid var(--qc-purple-primary);
    outline-offset: 1px;
}

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--qc-purple-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    font-weight: 600;
}

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

/* Enhanced touch targets for better mobile interaction */
@media (pointer: coarse) {
    .submit-button,
    .resend-button,
    .checkbox-field {
        min-height: 48px;
    }

    .form-input {
        min-height: 48px;
        padding: var(--qc-spacing-4);
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .checkbox-input {
        width: 24px;
        height: 24px;
        min-width: 24px;
        min-height: 24px;
    }

    /* Enhanced touch area for checkbox */
    .checkbox-field {
        padding: var(--qc-spacing-3);
        margin: -var(--qc-spacing-3);
        border-radius: var(--qc-radius-lg);
        cursor: pointer;
    }

    .checkbox-field:hover {
        background: rgba(106, 61, 232, 0.05);
    }
}

/* Enhanced mobile-first responsive design */
@media (max-width: 320px) {
    .signup-container {
        padding: var(--qc-spacing-2);
        padding-top: var(--qc-spacing-3);
    }

    .signup-form {
        padding: var(--qc-spacing-4);
    }

    .signup-header__title {
        font-size: 1.5rem;
        line-height: 1.2;
    }

    .progress-indicator__step {
        min-width: 60px;
    }

    .progress-indicator__step-number {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }

    .progress-indicator__step-label {
        font-size: 0.7rem;
    }

    .progress-indicator__connector {
        width: 20px;
        margin: 0 var(--qc-spacing-1);
    }
}

/* Improved landscape orientation support */
@media (max-height: 500px) and (orientation: landscape) {
    .signup-container {
        padding: var(--qc-spacing-2);
        align-items: flex-start;
    }

    .signup-header {
        margin-bottom: var(--qc-spacing-4);
    }

    .progress-indicator {
        padding: var(--qc-spacing-2) 0;
        margin-bottom: var(--qc-spacing-4);
    }

    .form-field {
        margin-bottom: var(--qc-spacing-3);
    }
}