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

:root {
    --primary-black: #000000;
    --text-black: #1a1a1a;
    --text-gray: #4a4a4a;
    --border-gray: #e0e0e0;
    --bg-light: #ffffff;
    --bg-section: #fafafa;
    --accent-hover: #f5f5f5;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-black);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--bg-light);
}

.header {
    text-align: center;
    margin-bottom: 48px;
    padding-top: 20px;
}

.logo {
    width: 30%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.main-content {
    width: 100%;
}

/* Stepper Styles */
.stepper-container {
    margin-bottom: 40px;
    padding: 20px 0;
}

.stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    max-width: 700px;
    margin: 0 auto;
}

.stepper-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex: 1;
    position: relative;
}

.stepper-step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-light);
    border: 2px solid var(--border-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-gray);
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.stepper-step.active .stepper-step-number {
    background-color: var(--primary-black);
    border-color: var(--primary-black);
    color: var(--bg-light);
}

.stepper-step.completed .stepper-step-number {
    background-color: var(--primary-black);
    border-color: var(--primary-black);
    color: transparent;
}

.stepper-step.completed .stepper-step-number::after {
    content: '✓';
    position: absolute;
    color: var(--bg-light);
    font-size: 18px;
    font-weight: 700;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.stepper-step-label {
    font-size: 12px;
    color: var(--text-gray);
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
}

.stepper-step.active .stepper-step-label {
    color: var(--primary-black);
    font-weight: 600;
}

.stepper-line {
    flex: 1;
    height: 2px;
    background-color: var(--border-gray);
    margin: 0 8px;
    transition: var(--transition);
}

.stepper-line.completed {
    background-color: var(--primary-black);
}

/* Form Step Styles */
.form-step {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

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

/* Step Actions */
.step-actions {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-gray);
}

.step-next-btn,
.step-prev-btn {
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 120px;
}

.step-next-btn {
    color: var(--bg-light);
    background-color: var(--primary-black);
    margin-left: auto;
}

.step-next-btn:hover {
    background-color: var(--text-black);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.step-next-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.step-next-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.step-prev-btn {
    color: var(--primary-black);
    background-color: transparent;
    border: 2px solid var(--border-gray);
}

.step-prev-btn:hover {
    background-color: var(--bg-section);
    border-color: var(--primary-black);
}

.step-prev-btn:active {
    transform: scale(0.98);
}

.title {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: 32px;
    text-align: center;
    letter-spacing: -0.5px;
}

.partnership-form {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tier-option {
    position: relative;
}

.tier-label {
    display: block;
    cursor: pointer;
    transition: var(--transition);
}

.tier-radio {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tier-content {
    border: 2px solid var(--border-gray);
    border-radius: 12px;
    padding: 24px;
    background-color: var(--bg-light);
    transition: var(--transition);
    position: relative;
}

.tier-label:hover .tier-content {
    border-color: var(--primary-black);
    background-color: var(--accent-hover);
    box-shadow: var(--shadow-md);
}

.tier-radio:checked + .tier-content {
    border-color: var(--primary-black);
    border-width: 3px;
    background-color: var(--bg-section);
    box-shadow: var(--shadow-lg);
}

.tier-radio:checked + .tier-content::before {
    content: '';
    position: absolute;
    top: 24px;
    right: 24px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--primary-black);
    border: 4px solid var(--bg-light);
    box-shadow: 0 0 0 2px var(--primary-black);
}

.tier-header {
    margin-bottom: 16px;
}

.tier-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-black);
    display: block;
    line-height: 1.4;
}

.tier-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tier-contribution {
    font-size: 16px;
    color: var(--text-gray);
    margin: 0;
}

.tier-contribution strong {
    color: var(--primary-black);
    font-weight: 700;
    font-size: 18px;
}

.tier-benefit {
    font-size: 15px;
    color: var(--text-gray);
    margin: 0;
}

.clarifications-section {
    background-color: var(--bg-section);
    border-radius: 12px;
    padding: 28px;
    border: 1px solid var(--border-gray);
    margin-top: 24px;
}

.clarifications-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.clarifications-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.clarifications-list li {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.6;
    padding-left: 24px;
    position: relative;
}

.clarifications-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-black);
    font-weight: 700;
    font-size: 18px;
}

.acknowledgment-section {
    padding: 20px 0;
    border-top: 1px solid var(--border-gray);
}

.acknowledgment-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    gap: 12px;
    transition: var(--transition);
}

.acknowledgment-label:hover {
    opacity: 0.8;
}

.acknowledgment-checkbox {
    width: 20px;
    height: 20px;
    min-width: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--primary-black);
    border: 2px solid var(--border-gray);
    border-radius: 4px;
}

.acknowledgment-checkbox:checked {
    background-color: var(--primary-black);
    border-color: var(--primary-black);
}

.acknowledgment-text {
    font-size: 15px;
    color: var(--text-black);
    line-height: 1.5;
    flex: 1;
}

.acknowledgment-section .error-message {
    margin-top: 8px;
    margin-left: 32px;
}

/* Acknowledgment fields layout (checkbox + initials) */
.acknowledgment-fields {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
}

.acknowledgment-full-label {
    align-items: flex-start;
    flex: 1;
    min-width: 0;
}

.acknowledgment-full-label .acknowledgment-checkbox {
    margin-top: 3px;
}

@media (max-width: 768px) {
    .acknowledgment-fields {
        flex-direction: column;
        align-items: flex-start;
    }
}

.tier-error-message {
    color: #dc2626;
    font-size: 14px;
    font-weight: 500;
    margin-top: 12px;
    padding: 12px 16px;
    background-color: #fef2f2;
    border-left: 3px solid #dc2626;
    border-radius: 4px;
    animation: slideDown 0.3s ease-out;
}

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

.contact-fields-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 32px;
    background-color: var(--bg-section);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-black);
    letter-spacing: -0.2px;
}

.required-asterisk {
    color: #dc2626;
    font-weight: 700;
    margin-left: 2px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    color: var(--text-black);
    background-color: var(--bg-light);
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    transition: var(--transition);
    font-family: inherit;
}

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

.form-input.error {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-input.error:focus {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.form-input::placeholder {
    color: #9ca3af;
}

/* Tier 3 Contribution Section */
.tier3-contribution-section {
    margin-top: 24px;
    padding: 24px;
    background-color: var(--bg-section);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    animation: fadeIn 0.4s ease-out;
}

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

.contribution-prefix {
    position: absolute;
    left: 16px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-black);
    z-index: 1;
}

.contribution-input {
    padding-left: 32px !important;
    font-size: 16px;
    font-weight: 600;
}

.field-hint {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 6px;
    font-style: italic;
}

.tier-note {
    font-size: 13px;
    color: var(--text-gray);
    margin: 4px 0 0 0;
    font-style: italic;
}

/* Mobile Responsive for Tier 3 Contribution */
@media (max-width: 768px) {
    .tier3-contribution-section {
        padding: 20px;
    }
    
    .contribution-prefix {
        left: 14px;
        font-size: 14px;
    }
    
    .contribution-input {
        padding-left: 28px !important;
        font-size: 15px;
    }
    
    .field-hint {
        font-size: 12px;
    }
}

.error-message {
    display: none;
    color: #dc2626;
    font-size: 13px;
    font-weight: 500;
    margin-top: 6px;
    line-height: 1.4;
}

.attendee-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 32px;
    background-color: var(--bg-section);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    animation: fadeIn 0.4s ease-out;
}

.attendee-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0 0 20px 0;
    letter-spacing: -0.3px;
}

.attendee-subtitle {
    font-size: 14px;
    color: var(--text-gray);
    margin: -8px 0 0 0;
    font-style: italic;
}

.attendee-info-banner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #f59e0b;
    border-radius: 8px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.15);
    animation: fadeIn 0.4s ease-out;
}

.attendee-info-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: #d97706;
    margin-top: 2px;
}

.attendee-info-icon svg {
    width: 20px;
    height: 20px;
}

.attendee-info-text {
    flex: 1;
    font-size: 14px;
    color: #92400e;
    line-height: 1.6;
    margin: 0;
}

.attendee-info-text strong {
    font-weight: 700;
    color: #78350f;
}

.attendee-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-gray);
    margin-top: 8px;
}

.attendee-header-col {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-black);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.attendee-fields {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.attendee-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 16px;
    align-items: start;
}

.attendee-number {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: 8px;
    grid-column: 1 / -1;
}

.attendee-input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.attendee-input-group .error-message {
    margin-top: 4px;
}

.attendee-input-label {
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 500;
}

.attendee-input {
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    color: var(--text-black);
    background-color: var(--bg-light);
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    transition: var(--transition);
    font-family: inherit;
}

.attendee-input:focus {
    outline: none;
    border-color: var(--primary-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.attendee-input.error {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.attendee-input.error:focus {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.attendee-input::placeholder {
    color: #9ca3af;
}

.attendee-actions {
    display: flex;
    align-items: flex-start;
    padding-top: 28px;
}

.attendee-delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background-color: transparent;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-gray);
    transition: var(--transition);
    flex-shrink: 0;
}

.attendee-delete-btn:hover {
    background-color: #fef2f2;
    border-color: #dc2626;
    color: #dc2626;
}

.attendee-delete-btn:active {
    transform: scale(0.95);
}

.add-attendee-container {
    grid-column: 1 / -1;
    margin-top: 8px;
}

.add-attendee-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-black);
    background-color: transparent;
    border: 2px dashed var(--border-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.add-attendee-btn:hover {
    background-color: var(--bg-section);
    border-color: var(--primary-black);
    border-style: solid;
}

.add-attendee-btn:active {
    transform: scale(0.98);
}

.add-attendee-btn svg {
    flex-shrink: 0;
}

.form-actions {
    padding-top: 8px;
}

.submit-button {
    width: 100%;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    color: var(--bg-light);
    background-color: var(--primary-black);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submit-button:hover {
    background-color: var(--text-black);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.submit-button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.submit-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
    body {
        padding: 16px;
    }
    
    .logo {
        width: 50%;
    }
    
    .header {
        margin-bottom: 32px;
        padding-top: 10px;
    }
    
    .stepper-container {
        margin-bottom: 32px;
        padding: 16px 0;
    }
    
    .stepper-step-number {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .stepper-step-label {
        font-size: 11px;
    }
    
    .stepper-line {
        margin: 0 4px;
    }
    
    .step-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .step-next-btn,
    .step-prev-btn {
        width: 100%;
        margin-left: 0;
    }
    
    .title {
        font-size: 24px;
        margin-bottom: 24px;
    }
    
    .partnership-form {
        gap: 24px;
    }
    
    .tier-content {
        padding: 20px;
    }
    
    .tier-name {
        font-size: 18px;
    }
    
    .tier-contribution {
        font-size: 15px;
    }
    
    .tier-contribution strong {
        font-size: 17px;
    }
    
    .tier-benefit {
        font-size: 14px;
    }
    
    .clarifications-section {
        padding: 20px;
    }
    
    .clarifications-title {
        font-size: 18px;
        margin-bottom: 16px;
    }
    
    .clarifications-list li {
        font-size: 14px;
        padding-left: 20px;
    }
    
    .acknowledgment-text {
        font-size: 14px;
    }
    
    .contact-fields-section {
        padding: 24px;
        gap: 20px;
    }
    
    .attendee-section {
        padding: 24px;
        gap: 20px;
    }
    
    .attendee-info-banner {
        padding: 14px 16px;
        gap: 10px;
        margin-bottom: 20px;
    }
    
    .attendee-info-icon {
        width: 20px;
        height: 20px;
    }
    
    .attendee-info-icon svg {
        width: 18px;
        height: 18px;
    }
    
    .attendee-info-text {
        font-size: 13px;
    }
    
    .attendee-header {
        gap: 12px;
    }
    
    .attendee-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .form-input {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .attendee-input {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .field-label {
        font-size: 14px;
    }
    
    .attendee-title {
        font-size: 18px;
    }
    
    .attendee-header {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .attendee-actions {
        padding-top: 0;
        margin-top: 8px;
        justify-content: flex-end;
    }
    
    .attendee-number {
        margin-bottom: 4px;
    }
    
    .submit-button {
        padding: 14px 24px;
        font-size: 15px;
    }
    
    .tier-radio:checked + .tier-content::before {
        top: 20px;
        right: 20px;
        width: 20px;
        height: 20px;
        border-width: 3px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 22px;
    }
    
    .tier-content {
        padding: 16px;
    }
    
    .tier-name {
        font-size: 16px;
    }
    
    .clarifications-section {
        padding: 16px;
    }
    
    .clarifications-title {
        font-size: 17px;
    }
    
    .attendee-section {
        padding: 16px;
    }
    
    .attendee-title {
        font-size: 17px;
    }
}

.alert-danger {
    color: #dc2626;
    font-size: 14px;
    font-weight: 500;
    margin-top: 6px;
    line-height: 1.4;
}

/* Success Modal Styles */
.success-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.success-modal.show,
.success-modal[style*="display: block"],
.success-modal[style*="display:flex"],
.success-modal[style*="display: flex"] {
    display: flex !important;
}

.success-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.success-modal-content {
    position: relative;
    background-color: var(--bg-light);
    border-radius: 16px;
    padding: 48px 40px;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    text-align: center;
    animation: slideUp 0.4s ease-out;
    z-index: 10001;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.success-icon {
    margin: 0 auto 24px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.5s ease-out 0.2s both;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.success-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-black);
    margin: 0 0 16px 0;
    letter-spacing: -0.5px;
}

.success-message {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0 0 32px 0;
    white-space: pre-line;
}

.success-close-btn {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    color: var(--bg-light);
    background-color: var(--primary-black);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 150px;
}

.success-close-btn:hover {
    background-color: var(--text-black);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.success-close-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Mobile Responsive for Success Modal */
@media (max-width: 768px) {
    .success-modal-content {
        padding: 40px 24px;
        max-width: 90%;
    }
    
    .success-icon {
        width: 64px;
        height: 64px;
        margin-bottom: 20px;
    }
    
    .success-icon svg {
        width: 48px;
        height: 48px;
    }
    
    .success-title {
        font-size: 24px;
        margin-bottom: 12px;
    }
    
    .success-message {
        font-size: 14px;
        margin-bottom: 24px;
    }
    
    .success-close-btn {
        padding: 12px 24px;
        font-size: 14px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .success-modal-content {
        padding: 32px 20px;
    }
    
    .success-title {
        font-size: 22px;
    }
    
    .success-message {
        font-size: 13px;
    }
}

/* Additional Attendees Confirmation Card */
.additional-attendees-confirmation {
    grid-column: 1 / -1;
    margin-top: 16px;
    margin-bottom: 8px;
    padding: 20px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid #0ea5e9;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.15);
    animation: slideIn 0.4s ease-out;
    transition: var(--transition);
}

.additional-attendees-confirmation.confirmed {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-color: #22c55e;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.15);
}

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

.confirmation-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.confirmation-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: #0ea5e9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.additional-attendees-confirmation.confirmed .confirmation-icon {
    background-color: #22c55e;
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.3);
}

.confirmation-text {
    flex: 1;
}

.confirmation-title {
    font-size: 16px;
    font-weight: 600;
    color: #0c4a6e;
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.additional-attendees-confirmation.confirmed .confirmation-title {
    color: #166534;
}

.confirmation-message {
    font-size: 14px;
    color: #075985;
    margin: 0;
    line-height: 1.5;
}

.additional-attendees-confirmation.confirmed .confirmation-message {
    color: #15803d;
}

.confirmation-checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 12px;
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    transition: var(--transition);
    margin-top: 4px;
}

.confirmation-checkbox-label:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateX(4px);
}

.confirmation-checkbox {
    width: 20px;
    height: 20px;
    min-width: 20px;
    cursor: pointer;
    accent-color: #0ea5e9;
    border: 2px solid #0ea5e9;
    border-radius: 4px;
    flex-shrink: 0;
}

.confirmation-checkbox:checked {
    background-color: #0ea5e9;
    border-color: #0ea5e9;
}

.additional-attendees-confirmation.confirmed .confirmation-checkbox {
    accent-color: #22c55e;
    border-color: #22c55e;
}

.additional-attendees-confirmation.confirmed .confirmation-checkbox:checked {
    background-color: #22c55e;
    border-color: #22c55e;
}

.confirmation-checkbox-text {
    font-size: 14px;
    font-weight: 600;
    color: #0c4a6e;
    user-select: none;
}

.additional-attendees-confirmation.confirmed .confirmation-checkbox-text {
    color: #166534;
}

/* Mobile Responsive for Confirmation Card */
@media (max-width: 768px) {
    .additional-attendees-confirmation {
        padding: 16px;
    }
    
    .confirmation-content {
        gap: 12px;
    }
    
    .confirmation-icon {
        width: 40px;
        height: 40px;
    }
    
    .confirmation-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .confirmation-title {
        font-size: 15px;
    }
    
    .confirmation-message {
        font-size: 13px;
    }
    
    .confirmation-checkbox-label {
        padding: 10px;
    }
    
    .confirmation-checkbox-text {
        font-size: 13px;
    }
}

/* Additional Attendees Section */
.additional-attendee-section {
    margin-top: 32px;
    padding: 28px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid var(--border-gray);
    border-radius: 12px;
    animation: fadeIn 0.4s ease-out;
}

.additional-attendee-header {
    margin-bottom: 24px;
}

.additional-attendee-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0 0 8px 0;
    letter-spacing: -0.3px;
}

.additional-attendee-description {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}

/* Step 3 Eligibility Acknowledgments (outside additional attendee card – always visible) */
.attendee-step-acknowledgments {
    margin-top: 28px;
    margin-bottom: 28px;
    padding: 24px 28px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid var(--border-gray);
    border-radius: 12px;
}

.attendee-acknowledgment-block {
    margin-bottom: 24px;
    padding: 16px 0;
}

.attendee-acknowledgment-block:last-of-type {
    margin-bottom: 0;
}

.attendee-acknowledgment-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0 0 10px 0;
    letter-spacing: -0.2px;
}

.attendee-acknowledgment-text {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0 0 14px 0;
}

.attendee-acknowledgment-fields {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
}

.attendee-acknowledgment-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 10px;
}

.attendee-ack-full-label {
    align-items: flex-start;
    flex: 1;
    min-width: 0;
}

.attendee-ack-full-label .attendee-ack-checkbox {
    margin-top: 3px;
}

.attendee-ack-full-label .attendee-ack-checkbox-text {
    line-height: 1.5;
}

.attendee-ack-checkbox {
    width: 20px;
    height: 20px;
    min-width: 20px;
    cursor: pointer;
    accent-color: var(--primary-black);
}

.attendee-ack-checkbox-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-black);
}

.attendee-initials-field {
    flex: 0 0 auto;
}

.attendee-initials-field .field-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
}

.attendee-initials-input {
    width: 80px;
    padding: 8px 12px;
    font-size: 14px;
}

.attendee-acknowledgment-block .error-message {
    display: block;
    margin-top: 8px;
}

.additional-badge {
    display: inline-block;
    margin-left: 8px;
    padding: 4px 10px;
    background-color: #fef3c7;
    color: #92400e;
    font-size: 11px;
    font-weight: 600;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.attendee-row.additional-attendee {
    background-color: rgba(255, 255, 255, 0.7);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

.attendee-row.additional-attendee .attendee-number {
    color: #92400e;
    font-weight: 700;
}

/* Cost Summary */
.cost-summary {
    margin-top: 24px;
    padding: 20px;
    background-color: var(--bg-light);
    border: 2px solid #fbbf24;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.15);
}

.cost-summary-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cost-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.cost-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-black);
}

.cost-value {
    font-size: 18px;
    font-weight: 700;
    color: #92400e;
}

/* Mobile Responsive for Additional Attendees */
@media (max-width: 768px) {
    .additional-attendee-section {
        padding: 20px;
        margin-top: 24px;
    }
    
    .additional-attendee-title {
        font-size: 16px;
    }
    
    .additional-attendee-description {
        font-size: 13px;
    }
    
    .attendee-acknowledgment-fields {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .attendee-acknowledgment-title {
        font-size: 14px;
    }
    
    .attendee-acknowledgment-text {
        font-size: 13px;
    }
    
    .attendee-step-acknowledgments {
        padding: 20px;
        margin-top: 24px;
        margin-bottom: 24px;
    }
    
    .cost-summary {
        padding: 16px;
    }
    
    .cost-label {
        font-size: 14px;
    }
    
    .cost-value {
        font-size: 16px;
    }
    
    .additional-badge {
        font-size: 10px;
        padding: 3px 8px;
    }
}

/* Payment Section Styles */
.payment-section {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding: 32px;
    background-color: var(--bg-section);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    animation: fadeIn 0.4s ease-out;
}

.payment-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0;
    letter-spacing: -0.3px;
}

/* Invoice Summary */
.invoice-summary-section {
    background-color: var(--bg-light);
    border: 2px solid var(--border-gray);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.invoice-summary-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0 0 20px 0;
    letter-spacing: -0.3px;
}

.invoice-summary-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.invoice-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-gray);
}

.invoice-row:last-child {
    border-bottom: none;
}

.invoice-row.invoice-total {
    border-top: 2px solid var(--primary-black);
    border-bottom: none;
    padding-top: 16px;
    margin-top: 8px;
}

.invoice-label {
    font-size: 15px;
    color: var(--text-gray);
    font-weight: 500;
}

.invoice-row.invoice-total .invoice-label {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-black);
}

.invoice-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-black);
}

.invoice-row.invoice-total .invoice-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-black);
}

/* Payment Form Section */
.payment-form-section {
    background-color: var(--bg-light);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 32px;
}

.payment-form-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0 0 24px 0;
    letter-spacing: -0.3px;
}

.payment-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Stripe Elements Card Container */
.stripe-card-element {
    padding: 14px 16px;
    background-color: var(--bg-light);
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    transition: var(--transition);
    min-height: 50px;
}

.stripe-card-element:focus-within {
    border-color: var(--primary-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.stripe-card-element.stripe-error {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Stripe Field Error */
.stripe-field-error {
    color: #dc2626;
    font-size: 13px;
    font-weight: 500;
    margin-top: 8px;
    display: none;
    line-height: 1.4;
}

.stripe-field-error:not(:empty) {
    display: block;
}

/* Stripe Error Box */
.stripe-error-box {
    background-color: #fef2f2;
    border: 2px solid #dc2626;
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 24px;
    animation: slideDown 0.3s ease-out;
}

.stripe-error-content {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #dc2626;
}

.stripe-error-content svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.stripe-error-content span {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
}

/* Mobile Responsive for Payment */
@media (max-width: 768px) {
    .payment-section {
        padding: 24px;
        gap: 24px;
    }
    
    .payment-title {
        font-size: 18px;
    }
    
    .invoice-summary-section {
        padding: 20px;
    }
    
    .invoice-summary-title {
        font-size: 16px;
    }
    
    .payment-form-section {
        padding: 24px;
    }
    
    .payment-form-title {
        font-size: 16px;
    }
    
    .payment-form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .invoice-label {
        font-size: 14px;
    }
    
    .invoice-value {
        font-size: 14px;
    }
    
    .invoice-row.invoice-total .invoice-label {
        font-size: 16px;
    }
    
    .invoice-row.invoice-total .invoice-value {
        font-size: 18px;
    }
}

/* Footer Styles */
.footer {
    margin-top: 60px;
    padding: 32px 20px;
    border-top: 1px solid var(--border-gray);
    background-color: var(--bg-light);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

.footer-text {
    font-size: 13px;
    color: var(--text-gray);
    margin: 0;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-logo {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-logo:hover {
    opacity: 1;
}

.footer-company {
    font-size: 14px;
    color: var(--text-black);
    margin: 0;
    font-weight: 600;
    letter-spacing: 0.3px;
}

/* Mobile Responsive for Footer */
@media (max-width: 768px) {
    .footer {
        margin-top: 40px;
        padding: 24px 16px;
    }
    
    .footer-content {
        gap: 10px;
    }
    
    .footer-text {
        font-size: 12px;
    }
    
    .footer-logo {
        height: 32px;
        max-width: 150px;
    }
    
    .footer-company {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .footer {
        margin-top: 32px;
        padding: 20px 12px;
    }
    
    .footer-logo {
        height: 28px;
        max-width: 120px;
    }
    
    .footer-text {
        font-size: 11px;
    }
    
    .footer-company {
        font-size: 12px;
    }
}