/* ============================================
   SignFlow - Premium Signing Platform Styles
   ============================================ */

:root {
    /* Light theme */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-border: rgba(255, 255, 255, 0.3);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --accent: #4f46e5;
    --accent-light: #818cf8;
    --accent-dark: #3730a3;
    --accent-glow: rgba(79, 70, 229, 0.15);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #0ea5e9;
    --border: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 30px var(--accent-glow);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #1a2332;
    --bg-glass: rgba(30, 41, 59, 0.6);
    --bg-glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border: rgba(255, 255, 255, 0.08);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
    min-height: 100vh;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    bottom: -300px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.08), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

/* === 导航栏 === */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
}

.navbar-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    box-shadow: var(--shadow-glow);
    transition: transform var(--transition);
}

.logo:hover .logo-icon {
    transform: scale(1.08) rotate(-5deg);
}

.logo-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 主题切换 */
.theme-toggle {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    background: var(--bg-glass);
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition);
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* === 按钮 === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: white;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--accent);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* === 主容器 === */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px;
    position: relative;
    z-index: 1;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    margin-top: 4px;
}

/* === 卡片 === */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

/* === 文档卡片网格 === */
.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.doc-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    overflow: hidden;
    position: relative;
}

.doc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light);
}

.doc-card-header {
    padding: 20px 20px 12px;
}

.doc-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-glow), rgba(14, 165, 233, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 12px;
}

.doc-card-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.doc-card-meta {
    font-size: 13px;
    color: var(--text-tertiary);
}

.doc-card-body {
    padding: 0 20px 16px;
}

.doc-card-stats {
    display: flex;
    gap: 16px;
    margin-top: 12px;
}

.doc-stat {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.doc-stat-value {
    font-weight: 700;
    color: var(--text-primary);
}

.doc-card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-tertiary);
}

/* 状态徽章 */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-draft { background: rgba(100, 116, 139, 0.15); color: #64748b; }
.badge-published { background: rgba(79, 70, 229, 0.15); color: #4f46e5; }
.badge-completed { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.badge-signed { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.badge-pending { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.badge-viewed { background: rgba(14, 165, 233, 0.15); color: #0ea5e9; }

/* 进度条 */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* === 上传区域 === */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
    background: var(--bg-secondary);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: scale(1.01);
}

.upload-icon {
    font-size: 56px;
    margin-bottom: 16px;
}

.upload-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.upload-hint {
    color: var(--text-secondary);
    font-size: 14px;
}

/* === 编辑器 === */
.editor-layout {
    display: flex;
    gap: 20px;
    height: calc(100vh - 120px);
    min-height: 600px;
}

.editor-sidebar {
    width: 300px;
    flex-shrink: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    overflow-y: auto;
    box-shadow: var(--shadow-sm);
}

.editor-main {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: auto;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.sidebar-section {
    margin-bottom: 24px;
}

.sidebar-section-title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

/* 字段类型面板 */
.field-palette {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.field-type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    cursor: grab;
    transition: all var(--transition);
    text-align: center;
}

.field-type-btn:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.field-type-btn:active {
    cursor: grabbing;
}

.field-type-icon {
    font-size: 22px;
}

.field-type-name {
    font-size: 12px;
    font-weight: 600;
}

/* PDF渲染区域 */
.pdf-canvas-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px;
    min-height: 100%;
}

.pdf-page-wrapper {
    position: relative;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    border-radius: 4px;
    overflow: visible;
}

.pdf-page-canvas {
    display: block;
    border-radius: 4px;
}

.field-overlay {
    position: absolute;
    border: 2px solid;
    border-radius: 6px;
    cursor: move;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    transition: box-shadow var(--transition);
    user-select: none;
}

.field-overlay:hover {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.field-overlay.selected {
    box-shadow: 0 0 0 3px var(--accent);
    z-index: 10;
}

.field-overlay-label {
    position: absolute;
    top: -22px;
    left: 0;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
}

.field-resize-handle {
    position: absolute;
    bottom: -4px;
    right: -4px;
    width: 12px;
    height: 12px;
    background: white;
    border: 2px solid var(--accent);
    border-radius: 50%;
    cursor: nwse-resize;
}

/* 页面导航 */
.page-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    position: sticky;
    top: 0;
    z-index: 5;
    box-shadow: var(--shadow-sm);
}

.page-nav-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition);
    font-size: 18px;
}

.page-nav-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.page-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-nav-info {
    font-size: 14px;
    font-weight: 600;
    min-width: 80px;
    text-align: center;
}

/* === 签署页面 === */
.signing-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px;
}

.signing-header {
    text-align: center;
    margin-bottom: 32px;
}

.signing-progress {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    margin-bottom: 24px;
}

.signing-progress-bar {
    width: 200px;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.signing-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), #34d399);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* 签署字段输入 */
.sign-field {
    position: absolute;
    border: 2px dashed;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.sign-field:hover {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.sign-field.filled {
    border-style: solid;
    opacity: 0.8;
}

.sign-field-input {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    text-align: center;
    font-size: 14px;
    outline: none;
    color: var(--text-primary);
}

.sign-field-label {
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

.sign-field-required {
    color: var(--danger);
}

/* 签名弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 600px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

.signature-pad-wrapper {
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: white;
    margin-bottom: 16px;
    position: relative;
}

#signature-canvas {
    display: block;
    width: 100%;
    cursor: crosshair;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* === 进度管理页面 === */
.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

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

.stat-value {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 收件人列表 */
.recipient-list {
    margin-bottom: 24px;
}

.recipient-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.recipient-item:hover {
    background: var(--bg-tertiary);
}

.recipient-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.recipient-info {
    flex: 1;
    min-width: 0;
}

.recipient-name {
    font-weight: 600;
    font-size: 14px;
}

.recipient-email {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* 提交记录列表 */
.submission-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.submission-item:hover {
    background: var(--bg-tertiary);
}

/* 分享区域 */
.share-box {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    align-items: center;
}

.share-link-box {
    flex: 1;
    min-width: 250px;
}

.share-link-input {
    display: flex;
    gap: 8px;
    align-items: center;
}

.share-link-input input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 13px;
    font-family: 'Courier New', monospace;
    outline: none;
}

.share-link-input input:focus {
    border-color: var(--accent);
}

.qr-display {
    text-align: center;
}

.qr-display img {
    width: 160px;
    height: 160px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

/* === Toast 通知 === */
.toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 600;
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 400px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }
.toast-warning { background: var(--warning); }

/* === 动画 === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 加载动画 */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 20px auto;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    flex-direction: column;
    gap: 16px;
}

.loading-overlay .spinner {
    width: 56px;
    height: 56px;
    border-width: 4px;
}

.loading-text {
    color: white;
    font-size: 16px;
    font-weight: 600;
}

/* === 空状态 === */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.empty-state-text {
    color: var(--text-secondary);
    font-size: 15px;
}

/* === 表单 === */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* === 响应式 === */
@media (max-width: 1024px) {
    .editor-layout {
        flex-direction: column;
        height: auto;
    }
    .editor-sidebar {
        width: 100%;
        max-height: none;
    }
    .editor-main {
        min-height: 600px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 16px;
    }
    .page-title {
        font-size: 22px;
    }
    .doc-grid {
        grid-template-columns: 1fr;
    }
    .navbar {
        padding: 12px 16px;
    }
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .share-box {
        flex-direction: column;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* 磁性按钮效果 */
.magnetic {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 输入框样式 - 签署页 */
.signer-info-form {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.signer-info-form h3 {
    font-size: 16px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}