/*
============================================
Subscription Modal Styles
订阅模态框样式
============================================
*/

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    backdrop-filter: blur(4px);
}

/* Modal Content */
.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-card);
}

.modal-header {
    margin-bottom: var(--space-6);
}

.modal-title {
    margin: 0;
    font-size: var(--text-card-title);
    font-weight: var(--weight-semibold);
    color: var(--color-gray-900);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Step Indicator */
.step-indicator {
    font-size: var(--text-small);
    color: var(--color-gray-400);
    font-weight: var(--weight-normal);
}

/* Step Bars */
.step-bars {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.step-bar {
    flex: 1;
    height: 3px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
}

.step-bar.active { background: var(--color-brand); }
.step-bar.completed { background: var(--color-brand); }
.step-bar.inactive { background: var(--color-gray-200); }

/* Form Sections */
.form-section {
    margin-bottom: var(--space-6);
}

.form-section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    font-size: var(--text-small);
    font-weight: var(--weight-semibold);
}

.form-section-title .step-num {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--color-white);
}

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

.form-group {
    margin-bottom: var(--space-4);
}

/* Form Labels */
.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-small);
    font-weight: var(--weight-medium);
    color: var(--color-gray-700);
}

.form-label .optional {
    color: var(--color-gray-400);
    font-weight: var(--weight-normal);
    font-size: var(--text-xs);
    margin-left: var(--space-2);
}

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

/* Form Inputs */
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    height: 44px;
    padding: 0 var(--space-6);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-full);
    background: var(--color-white);
    font-size: var(--text-body);
    font-family: var(--font-primary);
    color: var(--color-gray-900);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: var(--shadow-focus);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-400);
}

.form-textarea {
    height: auto;
    min-height: 80px;
    padding: var(--space-4) var(--space-6);
    resize: none;
    border-radius: var(--radius-lg);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23888888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-6) center;
    padding-right: var(--space-8);
}

/* Form Checkbox */
.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: var(--text-small);
    color: var(--color-gray-700);
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-brand);
}

/* Modal Footer */
.modal-footer {
    display: flex;
    gap: var(--space-3);
    justify-content: space-between;
    margin-top: var(--space-6);
}

.modal-footer-spacer {
    flex: 1;
}

/* Selected Tags */
.selected-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.selected-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--color-brand-light);
    border: 1px solid rgba(24, 226, 153, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-small);
    font-weight: var(--weight-medium);
    color: var(--color-brand-deep);
}

.selected-tag .remove {
    cursor: pointer;
    opacity: 0.7;
    font-size: var(--text-body);
    line-height: 1;
}

.selected-tag .remove:hover {
    opacity: 1;
}

/* Selector Components */
.selector-input-wrapper {
    position: relative;
}

.selector-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-lg);
    margin-top: var(--space-2);
    max-height: 200px;
    overflow-y: auto;
    box-shadow: var(--shadow-card);
    z-index: 100;
}

.selector-option {
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    font-size: var(--text-small);
    transition: background var(--transition-fast);
}

.selector-option:hover {
    background: var(--color-gray-50);
}

.selector-option .level {
    font-size: var(--text-xs);
    color: var(--color-gray-400);
}

.selector-trigger {
    width: 100%;
    height: 44px;
    padding: 0 var(--space-6);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-full);
    background: var(--color-white);
    font-size: var(--text-body);
    font-family: var(--font-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.selector-trigger:hover {
    border-color: var(--color-border-medium);
}

.selector-trigger .placeholder {
    color: var(--color-gray-400);
}

.selector-trigger .arrow {
    font-size: 10px;
    color: var(--color-gray-400);
}

.selector-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    font-size: var(--text-small);
    transition: background var(--transition-fast);
}

.selector-checkbox:hover {
    background: var(--color-gray-50);
}

.selector-checkbox .checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--color-brand);
    flex-shrink: 0;
}

.selector-checkbox.checked .checkbox {
    background: var(--color-brand);
    border-color: var(--color-brand);
}

.selector-empty {
    padding: var(--space-4);
    color: var(--color-gray-400);
    text-align: center;
    font-size: var(--text-small);
}