:root {
    --vocalcom-primary: #0052CC;
    --vocalcom-secondary: #2684FF;
    --vocalcom-dark: #172B4D;
    --vocalcom-light: #F4F5F7;
    --vocalcom-success: #36B37E;
    --vocalcom-error: #DE350B;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0, 82, 204, 0.08);
    --transition: 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--vocalcom-dark);
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    min-height: 100vh;
    padding: 2rem 1rem;
}

.form-container {
    max-width: 640px;
    margin: 0 auto;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
}

.form-header {
    padding: 2rem 2.5rem;
    text-align: center;
    border-bottom: 1px solid var(--vocalcom-light);
}

.form-header .logo {
    max-height: 48px;
    margin-bottom: 1rem;
    display: inline-block;
}

.form-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--vocalcom-dark);
}

.step-subtitles { margin-top: 0.5rem; }
.step-subtitle { display: none; font-size: 0.9rem; color: #6B778C; }
.step-subtitle.active { display: block; }
.form-group .field-hint { display: block; font-size: 0.8rem; color: #6B778C; margin-top: 0.25rem; }

.destination-options { display: flex; gap: 1rem; flex-wrap: wrap; }
.destination-option { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; }
.destination-option input { width: auto; }

.summary-notice { font-size: 0.9rem; color: #6B778C; margin-bottom: 1.5rem; font-style: italic; }
.form-footer { text-align: center; padding: 1.5rem 2.5rem; font-size: 0.8rem; color: #6B778C; border-top: 1px solid var(--vocalcom-light); }

.progress-container { padding: 1.5rem 2.5rem 0; }
.progress-bar {
    height: 4px;
    background: var(--vocalcom-light);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}
.progress-bar::after {
    content: '';
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--vocalcom-primary), var(--vocalcom-secondary));
    width: 25%;
    transition: width var(--transition);
}
.progress-container[data-step="1"] .progress-bar::after { width: 25%; }
.progress-container[data-step="2"] .progress-bar::after { width: 50%; }
.progress-container[data-step="3"] .progress-bar::after { width: 75%; }
.progress-container[data-step="4"] .progress-bar::after { width: 100%; }

.progress-steps { display: flex; justify-content: space-between; gap: 0.5rem; }
.step-indicator {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    opacity: 0.5;
    transition: opacity var(--transition);
}
.step-indicator.active, .step-indicator.completed { opacity: 1; }
.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--vocalcom-light);
    color: #6B778C;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
}
.step-indicator.active .step-number { background: var(--vocalcom-primary); color: #fff; }
.step-indicator.completed .step-number { background: var(--vocalcom-success); color: #fff; }
.step-label { font-size: 0.75rem; color: #6B778C; text-align: center; }

.form-step { display: none; padding: 2rem 2.5rem 2rem; animation: fadeIn 0.3s ease; }
.form-step.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.form-step h2 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--vocalcom-dark); }
.form-step .step-description { font-size: 0.9rem; color: #6B778C; margin-bottom: 1.5rem; }

.form-group { margin-bottom: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.35rem; color: var(--vocalcom-dark); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 1px solid #DFE1E6;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--vocalcom-primary);
    box-shadow: 0 0 0 2px rgba(0, 82, 204, 0.2);
}
.form-group input.error, .form-group select.error, .form-group textarea.error { border-color: var(--vocalcom-error); }
.form-group .error-msg { display: block; font-size: 0.8rem; color: var(--vocalcom-error); margin-top: 0.25rem; }
.form-group .file-hint { display: block; font-size: 0.8rem; color: #6B778C; margin-top: 0.25rem; }

.file-upload { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.file-upload input[type="file"] { position: absolute; width: 0.1px; height: 0.1px; opacity: 0; overflow: hidden; z-index: -1; }
.file-upload .file-name { flex: 1; font-size: 0.9rem; color: #6B778C; min-width: 150px; }
.btn-browse {
    padding: 0.5rem 1rem;
    background: var(--vocalcom-light);
    border: 1px solid #DFE1E6;
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-browse:hover { background: #EBECF0; }

.plan-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.plan-option { cursor: pointer; }
.plan-option input { display: none; }
.plan-card {
    display: block;
    padding: 1.25rem;
    border: 2px solid #DFE1E6;
    border-radius: var(--radius);
    transition: all var(--transition);
}
.plan-option input:checked + .plan-card, .plan-card:hover {
    border-color: var(--vocalcom-primary);
    background: rgba(0, 82, 204, 0.04);
}
.plan-name { display: block; font-weight: 600; font-size: 1rem; margin-bottom: 0.25rem; }
.plan-desc { display: block; font-size: 0.8rem; color: #6B778C; }
.plan-price { display: block; font-size: 0.85rem; font-weight: 500; color: var(--vocalcom-primary); }

.checkbox-group .checkbox-label { display: flex; align-items: flex-start; gap: 0.5rem; cursor: pointer; font-size: 0.9rem; }
.checkbox-group input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; flex-shrink: 0; }

.summary-card {
    background: var(--vocalcom-light);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}
.summary-card .summary-row { display: flex; justify-content: space-between; padding: 0.35rem 0; border-bottom: 1px solid #EBECF0; }
.summary-card .summary-row:last-child { border-bottom: none; }
.summary-card .summary-label { color: #6B778C; }
.summary-card .summary-value { font-weight: 500; text-align: right; }

.form-navigation { display: flex; gap: 1rem; justify-content: space-between; padding: 1.5rem 2.5rem 2rem; border-top: 1px solid var(--vocalcom-light); }
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--vocalcom-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--vocalcom-secondary); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--vocalcom-dark); border: 1px solid #DFE1E6; }
.btn-secondary:hover:not(:disabled) { background: var(--vocalcom-light); }

.success-overlay { display: none; position: absolute; inset: 0; background: rgba(255, 255, 255, 0.98); align-items: center; justify-content: center; padding: 2rem; z-index: 10; }
.success-overlay.visible { display: flex; animation: fadeIn 0.4s ease; }
.success-content { text-align: center; max-width: 400px; }
.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--vocalcom-success);
    color: #fff;
    font-size: 2.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}
.success-content h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.success-msg { color: #6B778C; margin-top: 1rem; }
.success-sub { font-size: 0.9rem; color: var(--vocalcom-primary); margin-top: 1.5rem; }

@media (max-width: 640px) {
    body { padding: 1rem 0.5rem; }
    .form-header, .form-step, .form-navigation { padding-left: 1.5rem; padding-right: 1.5rem; }
    .progress-container { padding: 1rem 1.5rem 0; }
    .form-row { grid-template-columns: 1fr; }
    .plan-options { grid-template-columns: 1fr; }
    .form-navigation { flex-direction: column; }
    .form-navigation .btn { width: 100%; }
}