/*
  TECH-DRILL | style.css
  Clean, Minimalist & Premium Style Sheet for IoT Drill App
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --primary: #4f46e5;       /* Indigo */
    --primary-hover: #4338ca;
    --secondary: #64748b;     /* Slate */
    --secondary-hover: #475569;
    --success: #10b981;       /* Emerald */
    --success-bg: #d1fae5;
    --success-text: #065f46;
    --error: #ef4444;         /* Rose */
    --error-bg: #fee2e2;
    --error-text: #991b1b;
    --warning: #f59e0b;       /* Amber for bookmarks */
    --warning-bg: #fef3c7;
    --warning-text: #92400e;
    --border-color: #e2e8f0;
    --text-main: #0f172a;     /* Deep Slate */
    --text-muted: #64748b;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-bottom: 60px;
}

header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    padding: 24px 16px;
}

header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.025em;
    margin-bottom: 4px;
}

header p {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.container {
    max-width: 640px;
    margin: 32px auto;
    padding: 0 20px;
}

/* Tabs */
.tab-menu {
    display: flex;
    background-color: #f1f5f9;
    padding: 4px;
    border-radius: 8px;
    margin-bottom: 24px;
    gap: 4px;
}

.tab-btn {
    flex: 1;
    background-color: transparent;
    color: var(--text-muted);
    padding: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.tab-btn:hover:not(.active) {
    color: var(--text-main);
    background-color: rgba(0, 0, 0, 0.03);
}

.tab-btn.active {
    background-color: var(--card-bg);
    color: var(--primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 28px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    margin-bottom: 24px;
}

h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Home Panel - Quick Action Cards Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.quick-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 120px;
}

.quick-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.quick-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 0.95rem;
}

.quick-card-badge {
    background-color: #f1f5f9;
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 9999px;
    font-weight: 600;
}

.quick-card-badge.wrong-badge {
    background-color: var(--error-bg);
    color: var(--error-text);
}

.quick-card-badge.bookmark-badge {
    background-color: var(--warning-bg);
    color: var(--warning-text);
}

.quick-card-body {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
    line-height: 1.4;
}

.quick-card-footer {
    align-self: flex-end;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Progress bar */
.progress-section {
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    font-size: 0.875rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
    margin-bottom: 8px;
}

.progress-bar-container {
    background-color: #e2e8f0;
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    background-color: var(--primary);
    height: 100%;
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Genre checkboxes */
.genre-list {
    list-style: none;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.genre-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.15s ease;
}

.genre-item:last-child {
    border-bottom: none;
}

.genre-item:hover {
    background-color: #f8fafc;
}

.genre-item input[type="checkbox"] {
    margin-right: 12px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary);
}

.genre-item label {
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    flex-grow: 1;
}

.genre-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
}

/* Select element */
.select-box {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    background-color: var(--card-bg);
    margin-bottom: 24px;
    color: var(--text-main);
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.select-box:focus {
    border-color: var(--primary);
}

/* Buttons */
button {
    padding: 12px 16px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

button:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not([disabled]) {
    background-color: #e2e8f0;
}

.btn-outline {
    background-color: transparent;
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: rgba(79, 70, 229, 0.02);
}

.btn-danger {
    background-color: var(--error-bg);
    color: var(--error-text);
}

.btn-danger:hover {
    background-color: #fecaca;
}

/* Quiz display */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.badge {
    background-color: #f1f5f9;
    color: var(--text-muted);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.75rem;
}

.quiz-title-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
}

.question-text {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: pre-wrap;
    line-height: 1.5;
    flex-grow: 1;
}

/* Bookmark Icon Toggle */
.bookmark-toggle-btn {
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    font-size: 1.35rem;
    color: #cbd5e1;
    width: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.2s;
}

.bookmark-toggle-btn:hover {
    color: var(--warning);
}

.bookmark-toggle-btn.active {
    color: var(--warning);
    transform: scale(1.15);
}

.choices-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.choice-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    text-align: left;
    justify-content: flex-start;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 14px 16px;
    line-height: 1.4;
}

.choice-btn:hover:not([disabled]) {
    background-color: #f8fafc;
    border-color: #94a3b8;
}

.choice-btn.correct {
    background-color: var(--success-bg);
    border-color: var(--success);
    color: var(--success-text);
    font-weight: 600;
}

.choice-btn.wrong {
    background-color: var(--error-bg);
    border-color: var(--error);
    color: var(--error-text);
}

.session-counter {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
}

.session-counter span {
    font-weight: 700;
    color: var(--text-main);
}

/* Explanation & Media */
.explanation-section {
    margin-top: 24px;
    border-top: 1px dashed var(--border-color);
    padding-top: 24px;
}

.result-badge {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.result-badge.correct-text {
    color: var(--success);
}

.result-badge.wrong-text {
    color: var(--error);
}

.comment-box {
    padding: 0;
    margin-bottom: 20px;
    background: transparent;
    border: none;
}

.media-container {
    margin-bottom: 20px;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    background-color: #000;
    margin-top: 8px;
    border: 1px solid var(--border-color);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.slide-placeholder {
    background-color: #f1f5f9;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.nav-buttons {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

/* Glossary Index & Search */
#search-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.925rem;
    margin-bottom: 16px;
    outline: none;
    transition: all 0.2s;
    background-color: #f8fafc;
}

#search-input:focus {
    background-color: var(--card-bg);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.glossary-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Accordion Item styles */
.accordion-group {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--card-bg);
}

.accordion-header {
    background-color: #f8fafc;
    padding: 12px 16px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid var(--border-color);
}

.accordion-header:after {
    content: '▼';
    font-size: 0.65rem;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.accordion-group.active .accordion-header:after {
    transform: rotate(180deg);
}

.accordion-content {
    display: none;
    padding: 8px 0;
}

.accordion-group.active .accordion-content {
    display: block;
}

/* Term Item (inside accordion) */
.term-item {
    border-bottom: 1px solid #f1f5f9;
    padding: 12px 16px;
    transition: background-color 0.15s ease;
}

.term-item:last-child {
    border-bottom: none;
}

.term-item:hover {
    background-color: #fafafa;
}

.term-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.925rem;
}

.term-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.term-arrow {
    font-size: 0.6rem;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.term-item.open .term-arrow {
    transform: rotate(90deg);
}

.term-body {
    display: none;
    padding-top: 12px;
    animation: slideDown 0.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.term-item.open .term-body {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.term-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.term-definition {
    font-size: 0.85rem;
    background-color: #f8fafc;
    border-left: 3px solid var(--primary);
    padding: 10px 12px;
    border-radius: 0 6px 6px 0;
    line-height: 1.4;
    white-space: pre-wrap;
}

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

.term-btn-mini {
    padding: 6px 12px;
    font-size: 0.775rem;
    width: auto;
}

.term-link-youtube {
    font-size: 0.775rem;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

.term-link-youtube:hover {
    text-decoration: underline;
}

/* Donation & Footer */
.donation-banner {
    text-align: center;
    font-size: 0.775rem;
    color: var(--text-muted);
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

.donation-banner a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

.donation-banner a:hover {
    text-decoration: underline;
}

.footer-nav {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

.contact-box {
    margin-top: 16px;
    margin-bottom: 24px;
    padding: 16px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.775rem;
    color: var(--text-main);
    text-align: left;
    line-height: 1.5;
}

.contact-box a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: underline;
}

#loading-view {
    text-align: center;
    padding: 48px;
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hidden {
    display: none !important;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .container {
        margin: 16px auto;
        padding: 0 16px;
    }
    .card {
        padding: 20px;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .quick-card {
        min-height: 100px;
    }
}

/* Syllabus Readiness Gauges & Ranks */
.readiness-section {
    width: 100%;
}

.readiness-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.readiness-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.readiness-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.825rem;
    font-weight: 500;
}

.genre-label {
    color: var(--text-main);
    font-weight: 600;
}

.readiness-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.readiness-rate {
    font-weight: 700;
    color: var(--text-main);
}

.rank-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

/* Rank colors (Premium light mode palette) */
.rank-s {
    background-color: #f5f3ff;
    color: #6d28d9;
    border: 1px solid #c084fc;
}

.rank-a {
    background-color: #ecfdf5;
    color: #047857;
    border: 1px solid #6ee7b7;
}

.rank-b {
    background-color: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #93c5fd;
}

.rank-c {
    background-color: #fffbeb;
    color: #b45309;
    border: 1px solid #fcd34d;
}

.rank-d {
    background-color: #fff1f2;
    color: #be123c;
    border: 1px solid #fda4af;
}

.rank-e {
    background-color: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
}

.readiness-bar-container {
    background-color: #e2e8f0;
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    width: 100%;
}

.readiness-bar {
    height: 100%;
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--primary);
}

#readiness-bar-construction { background-color: #6366f1; }
#readiness-bar-sensor { background-color: #0ea5e9; }
#readiness-bar-data { background-color: #a855f7; }
#readiness-bar-security { background-color: #10b981; }
#readiness-bar-proto { background-color: #f59e0b; }

/* Inline Loading / Error labels */
.loading-inline {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
}

.error-inline {
    font-size: 0.8rem;
    color: var(--error);
    font-weight: 500;
}

/* Responsive mobile adjustments for 3 tabs */
@media (max-width: 480px) {
    .tab-btn {
        font-size: 0.75rem;
        padding: 8px 4px;
        letter-spacing: -0.03em;
    }
}

/* 🎓 ワンポイント解説（プレミアムカードデザイン） */
.exp-card {
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
    line-height: 1.65;
    transition: all 0.2s ease;
}

.exp-card-title {
    font-weight: 700;
    font-size: 0.975rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.01em;
}

.exp-card-body {
    font-size: 0.875rem;
    line-height: 1.65;
}

/* 各セクションの配色（プレミアムな微細グラデーションと境界カラーバー） */
.exp-card-correct {
    background: linear-gradient(135deg, #f0fdf4 0%, #e8fbf0 100%);
    border-left: 5px solid #10b981;
    color: #065f46;
    border-top-color: rgba(16, 185, 129, 0.15);
    border-right-color: rgba(16, 185, 129, 0.15);
    border-bottom-color: rgba(16, 185, 129, 0.15);
}
.exp-card-correct .exp-card-body {
    color: #044e39;
}

.exp-card-incorrect {
    background: linear-gradient(135deg, #fef2f2 0%, #fff1f1 100%);
    border-left: 5px solid #ef4444;
    color: #991b1b;
    border-top-color: rgba(239, 68, 68, 0.15);
    border-right-color: rgba(239, 68, 68, 0.15);
    border-bottom-color: rgba(239, 68, 68, 0.15);
}

.exp-list {
    margin: 0;
    padding-left: 0;
    list-style: none;
}

.exp-list-item {
    font-size: 0.875rem;
    color: #7f1d1d;
    margin-bottom: 10px;
    padding-left: 0;
    text-indent: 0;
    line-height: 1.6;
}
.exp-list-item:last-child {
    margin-bottom: 0;
}

.exp-card-important {
    background: linear-gradient(135deg, #eff6ff 0%, #e6f0fa 100%);
    border-left: 5px solid #3b82f6;
    color: #1e3a8a;
    border-top-color: rgba(59, 130, 246, 0.15);
    border-right-color: rgba(59, 130, 246, 0.15);
    border-bottom-color: rgba(59, 130, 246, 0.15);
}
.exp-card-important .exp-card-body {
    color: #172554;
}

/* 🏆 プレミアム・レーダーチャート & 分野別合格力判定 UI (ミニマル中央配置) */
.radar-central-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
    width: 100%;
}

#radar-chart-container {
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radar-compare-controls {
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(243, 244, 246, 0.7);
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.radar-select {
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--text-color);
    font-weight: 600;
    outline: none;
    cursor: pointer;
}

/* SVG レーダーチャートのスタイル */
.radar-svg {
    overflow: visible;
}

.radar-grid-line {
    fill: none;
    stroke: rgba(156, 163, 175, 0.2);
    stroke-width: 0.75;
}

.radar-axis-line {
    fill: none;
    stroke: rgba(156, 163, 175, 0.35);
    stroke-width: 1;
}

.radar-axis-label {
    font-size: 10.5px;
    font-weight: bold;
    fill: var(--text-color);
    text-anchor: middle;
}

/* 外周のランクバッジ風テキストのスタイル */
.radar-rank-badge {
    font-size: 10px;
    font-weight: 800;
    dominant-baseline: middle;
}

/* ランクごとのネオンカラー指定 */
.radar-rank-s { fill: #10b981; } /* エメラルドグリーン */
.radar-rank-a { fill: #3b82f6; } /* ロイヤルブルー */
.radar-rank-b { fill: #8b5cf6; } /* パープル */
.radar-rank-c { fill: #f59e0b; } /* アンバーオレンジ */
.radar-rank-d { fill: #ef4444; } /* レッド */
.radar-rank-e { fill: #9ca3af; } /* グレー */

/* 現在の合格力：🔵 アクアブルーのネオンポリゴン */
.radar-polygon-current {
    fill: rgba(59, 130, 246, 0.22);
    stroke: #3b82f6;
    stroke-width: 2.5;
    filter: drop-shadow(0 0 4px rgba(59, 130, 246, 0.4));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.radar-dot-current {
    fill: #3b82f6;
    stroke: #fff;
    stroke-width: 1.5;
    filter: drop-shadow(0 0 2px rgba(59, 130, 246, 0.6));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 過去の合格力：🌸 ローズピンクの半透明点線ポリゴン */
.radar-polygon-past {
    fill: rgba(236, 72, 153, 0.08);
    stroke: #ec4899;
    stroke-width: 1.5;
    stroke-dasharray: 3, 3;
    filter: drop-shadow(0 0 2px rgba(236, 72, 153, 0.3));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.radar-dot-past {
    fill: #ec4899;
    stroke: #fff;
    stroke-width: 1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}