/* Professional Registration Form */
:root {
    --primary-color: #1a1a1a;
    --secondary-color: #6b7280;
    --accent-color: #059669;
    --background: #ffffff;
    --surface: #f9fafb;
    --border: #e5e7eb;
    --border-focus: #d1d5db;
    --text-primary: #333;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --success: #059669;
    --error: #dc2626;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

.registration-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0;
    background: transparent;
}

/* Header Section */
.registration-header {
    background: var(--background);
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.registration-header h1 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px 0;
    letter-spacing: -0.025em;
}

.registration-header p {
    font-size: 18px;
    color: var(--text-secondary);
    margin: 0 0 40px 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 0 auto;
    max-width: 1000px;
}

.process-step {
    text-align: center;
    padding: 28px 20px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.process-step-number {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
    margin: 0 auto 16px;
}

.process-step h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 8px 0;
}

.process-step p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

/* Form Wrapper */
.form-wrapper {
    background: var(--background);
    padding: 60px 0;
}

.form-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Form Sections */
.form-section {
    margin-bottom: 48px;
}

.section-header {
    margin-bottom: 32px;
}

.section-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    letter-spacing: -0.025em;
}

.section-header p {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

/* Form Layout */
.form-grid {
    display: grid;
    gap: 24px;
}

.form-grid.cols-2 {
    grid-template-columns: 1fr 1fr;
}

.form-grid.cols-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-label.required::after {
    content: " *";
    color: var(--error);
}

/* Form Controls */
.form-input,
.form-select,
.form-textarea {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: inherit;
    background: var(--background);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--border-focus);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(26 26 26 / 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Excursion Items */
.excursions-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.excursion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    background: var(--surface);
}

.excursion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.excursion-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.remove-excursion {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.remove-excursion:hover {
    background: var(--error);
    color: white;
    border-color: var(--error);
}

/* Add Button */
.add-excursion {
    width: 100%;
    padding: 16px;
    border: 2px dashed var(--border);
    background: none;
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.add-excursion:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--surface);
}

/* Privacy Section */
.privacy-section {
    padding: 24px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.checkbox-input {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
}

.checkbox-label {
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1.5;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

/* Submit Button */
.submit-button {
    width: 100%;
    padding: 16px 32px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 8px;
}

.submit-button:hover {
    background: #000000;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.submit-button:active {
    transform: translateY(0);
}

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-icon {
    font-size: 16px;
    flex-shrink: 0;
}

/* Info Card */
.info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 32px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.info-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 16px 0;
}

.info-card p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .registration-header {
        padding: 40px 24px;
    }

    .registration-header h1 {
        font-size: 28px;
    }

    .registration-header p {
        font-size: 16px;
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 0 24px;
    }

    .form-container {
        padding: 0 24px;
    }

    .form-grid.cols-2,
    .form-grid.cols-3 {
        grid-template-columns: 1fr;
    }

    .excursion-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .remove-excursion {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .registration-header h1 {
        font-size: 24px;
    }

    .process-steps {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .process-step {
        padding: 24px 16px;
    }

    .excursion-item {
        padding: 24px;
    }

    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Loading States */
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background: #f9fafb;
    color: var(--text-muted);
    cursor: not-allowed;
}

.submit-button:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.submit-button:disabled:hover {
    background: var(--text-muted);
    transform: none;
    box-shadow: none;
}