/* Timeline specific styles */

body {
    background: linear-gradient(135deg, #e0f7fa 0%, #e1bee7 100%);
    background-attachment: fixed;
    min-height: 100vh;
    justify-content: flex-start;
    align-items: stretch;
    padding: max(14px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right))
        max(14px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
    box-sizing: border-box;
    overflow-x: hidden;
}

/* Glassmorphism Container */
.timeline-container {
    width: min(100%, 1600px);
    margin: 0 auto 2.5rem;
    padding: clamp(16px, 2.8vw, 30px);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    overflow: hidden;
}

/* Header Adjustments */
header {
    text-align: center;
    padding: 4.8rem 0 1.2rem;
    position: relative;
}

.timeline-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
}

header .subtitle {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    color: var(--signature-text-light, #666);
    margin-top: 0.7rem;
}

/* Back Link */
.nav-back {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 30;
    text-decoration: none;
    color: var(--mc-gray, #6c757d);
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 999px;
    transition: all 0.2s;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.nav-back:hover {
    color: var(--mc-blue, #005eb8);
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nav-back:focus-visible {
    outline: 2px solid var(--mc-blue, #005eb8);
    outline-offset: 3px;
}

/* Controls */
.controls {
    display: grid;
    grid-template-columns: auto minmax(260px, 360px);
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.view-switches {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.toggle-btn {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(0, 0, 0, 0.1);
    min-height: 48px;
    padding: 10px 22px;
    border-radius: 50px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--mc-blue, #005eb8);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    white-space: nowrap;
}

.toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 14px rgba(0, 0, 0, 0.1);
    background: white;
}

.toggle-btn.active {
    background: var(--mc-blue, #005eb8);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 94, 184, 0.3);
    border-color: transparent;
}

.toggle-btn:focus-visible {
    outline: 2px solid var(--mc-blue, #005eb8);
    outline-offset: 3px;
}

.search-wrap {
    position: relative;
    display: block;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--mc-blue, #005eb8);
    pointer-events: none;
}

.search-input {
    width: 100%;
    height: 48px;
    box-sizing: border-box;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.9);
    padding: 0 14px 0 40px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    color: #1f2937;
}

.search-input:focus-visible {
    outline: 2px solid rgba(0, 94, 184, 0.65);
    outline-offset: 1px;
    border-color: rgba(0, 94, 184, 0.35);
}

/* Chart area: keep desktop look while preserving legibility on mobile */
#chart-area {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.35rem;
}

/* Chart Styles Override */
.timelines-chart text {
    font-family: 'Inter', sans-serif !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* Tooltip Customization */
.timeline-tooltip {
    background: rgba(255, 255, 255, 0.95) !important;
    color: #333 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
    border-radius: 8px !important;
    padding: 10px !important;
    font-family: 'Inter', sans-serif !important;
    line-height: 1.4;
}

@media (max-width: 1024px) {
    .controls {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header {
        padding-top: 4.3rem;
    }

    .timeline-title {
        font-size: clamp(1.8rem, 8vw, 2.3rem);
    }

    header .subtitle {
        font-size: 1.15rem;
    }

    .view-switches {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .toggle-btn {
        width: 100%;
        white-space: normal;
        text-align: center;
        padding: 11px 12px;
    }
}

@media (max-width: 520px) {
    .timeline-container {
        border-radius: 20px;
    }

    .nav-back {
        top: 12px;
        left: 12px;
        min-height: 42px;
        padding: 7px 12px;
        font-size: 0.9rem;
    }

    .controls {
        gap: 0.85rem;
    }

    .search-input {
        height: 46px;
        font-size: 0.96rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .toggle-btn,
    .nav-back {
        transition: none;
    }
}