:root {
    --primary-light: #e0f7fa;
    --primary-mid: #4fc3f7;
    --accent: #00e5ff;
    --text-dark: #1a202c;
    --text-muted: #6b7280;
    --surface: rgba(255, 255, 255, 0.95);
    --surface-hover: rgba(224, 247, 250, 0.6);
    --border: rgba(79, 195, 247, 0.2);
    --border-focus: #00e5ff;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 6px 12px rgba(0, 0, 0, 0.15);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    background: #f4faff;
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeIn 0.6s ease-out;
}

.logo {
    width: 80px;
    margin-bottom: var(--spacing-sm);
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.1);
}

.header h1 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--primary-mid);
}

.header p {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto;
}

.progress-indicator {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    position: absolute;
    top: 6px;
    width: 100%;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
}

.progress-fill {
    width: 0;
    height: 100%;
    background: var(--primary-mid);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.progress-step.active:nth-child(2) ~ .progress-fill { width: 50%; }
.progress-step.active:nth-child(3) ~ .progress-fill { width: 100%; }

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    z-index: 1;
}

.progress-dot {
    width: 12px;
    height: 12px;
    background: var(--border);
    border-radius: 50%;
    transition: var(--transition);
}

.progress-step.active .progress-dot {
    background: var(--primary-mid);
    transform: scale(1.2);
    box-shadow: 0 0 8px var(--border-focus);
}

.progress-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    transition: var(--transition);
}

.progress-step.active .progress-label {
    color: var(--primary-mid);
}

.form-card {
    background: var(--surface);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.form-card:hover {
    transform: translateY(-2px);
}

.form-section {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.form-section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.section-icon {
    width: 20px;
    height: 20px;
    display: grid;
    place-items: center;
    background: var(--primary-light);
    border-radius: 4px;
    color: var(--primary-mid);
    font-size: 12px;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-sm);
}

.form-group {
    position: relative;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-xs);
}

.required {
    color: var(--error);
}

.form-input, .form-textarea {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    background: #fff;
    transition: var(--transition);
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 6px rgba(0, 229, 255, 0.3);
}

.form-input::placeholder, .form-textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.char-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    display: block;
}

.char-count.warning {
    color: var(--warning);
}

.custom-select {
    position: relative;
}

.select-trigger {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    background: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.select-trigger::after {
    content: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%234fc3f7' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}

.select-trigger.selected {
    color: var(--text-dark);
}

.select-trigger:focus, .custom-select.open .select-trigger {
    border-color: var(--border-focus);
    box-shadow: 0 0 6px rgba(0, 229, 255, 0.3);
}

.select-options {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-top: 4px;
    box-shadow: var(--shadow-sm);
    z-index: 10;
    max-height: 200px;
    overflow-y: auto;
}

.custom-select.open .select-options {
    display: block;
}

.select-option {
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.select-option:hover, .select-option:focus, .select-option[aria-selected="true"] {
    background: var(--surface-hover);
    color: var(--primary-mid);
}

.select-option[disabled] {
    color: var(--text-muted);
    cursor: not-allowed;
}

.additional-services {
    padding: var(--spacing-sm);
    background: var(--surface);
    border-radius: 8px;
}

.services-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.services-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-sm);
}

.service-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.service-card.selected {
    border-color: var(--primary-mid);
    background: var(--surface-hover);
}

.service-checkbox {
    width: 16px;
    height: 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-right: var(--spacing-xs);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.service-card.selected .service-checkbox {
    background: var(--primary-mid);
    border-color: var(--primary-mid);
}

.service-checkbox::after {
    content: '✔';
    color: #fff;
    font-size: 10px;
    opacity: 0;
}

.service-card.selected .service-checkbox::after {
    opacity: 1;
}

.service-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.service-description {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-mid);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    border: 1px solid var(--border);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.spinner {
    font-size: 0.8rem;
}

.form-message {
    display: none;
    padding: var(--spacing-sm);
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.form-message.show {
    display: flex;
}

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

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

.dismiss-message {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.error-message {
    display: none;
    color: var(--error);
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
}

.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .select-trigger {
    border-color: var(--error);
    animation: shake 0.3s ease;
}

.form-group.error .error-message {
    display: block;
}

.tooltip {
    cursor: help;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    top: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-dark);
    color: #fff;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 100;
    place-items: center;
}

.modal.show {
    display: grid;
}

.modal-content {
    background: var(--surface);
    border-radius: 12px;
    padding: var(--spacing-md);
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.3s ease;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    font-size: 1rem;
    color: var(--text-dark);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--primary-mid);
}

.modal-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.modal-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.alert-toast {
    display: none;
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    background: var(--surface);
    padding: var(--spacing-sm);
    border-radius: 5px;
    box-shadow: var(--shadow-md);
    max-width: 280px;
    z-index: 1000;
    align-items: center;
    gap: 0.5rem;
}

.alert-toast.show {
    display: flex;
}

.alert-toast.success {
    border-left: 3px solid var(--success);
}

.alert-toast.error {
    border-left: 3px solid var(--error);
}

.alert-toast.warning {
    border-left: 3px solid var(--warning);
}

.alert-text {
    font-size: 0.85rem;
}

.alert-close {
    background: none;
    border: none;
    color: var(--text-dark);
    font-size: 0.9rem;
    cursor: pointer;
}

.alert-close:hover {
    color: var(--primary-mid);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .alert-toast {
        width: calc(100% - 2rem);
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.4rem;
    }

    .header p {
        font-size: 0.85rem;
    }

    .logo {
        width: 60px;
    }

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

    .form-input, .form-textarea, .select-trigger {
        font-size: 0.875rem;
    }
}