/* ============================================================ */
/* GLOBAL MONITOR — STYLESHEET                                   */
/* Design: Deep Navy + Pure White · WCAG 2.1 AA                  */
/* Author: 2028.mom                                              */
/* ============================================================ */

/* ============================================================ */
/* 1. DESIGN TOKENS                                              */
/* ============================================================ */
:root {
    /* --- Backgrounds --- */
    --bg-deep:          #02050A;
    --bg-frame:         #0A1428;
    --bg-item:          #0F1E38;
    --bg-item-hover:    #142647;
    --bg-btn:           #0E1B33;
    --bg-btn-hover:     #17294A;

    /* --- Borders --- */
    --border-soft:      #1A2B4A;
    --border-medium:    #24395E;
    --border-bright:    #3A5480;

    /* --- Text --- */
    --text-primary:     #FFFFFF;
    --text-secondary:   #C9D4E6;
    --text-muted:       #8494B0;
    --text-faint:       #5A6884;

    /* --- Severity (very subtle) --- */
    --sev-severe:       #E87474;
    --sev-moderate:     #E5B46A;
    --sev-light:        #7DB8FF;
    --sev-none:         #8FC9A0;

    /* --- Focus ring --- */
    --focus-ring:       #FFFFFF;

    /* --- Spacing scale --- */
    --space-1:          0.25rem;
    --space-2:          0.5rem;
    --space-3:          0.75rem;
    --space-4:          1rem;
    --space-5:          1.5rem;
    --space-6:          2rem;
    --space-7:          3rem;

    /* --- Radii --- */
    --radius-sm:        6px;
    --radius-md:        10px;
    --radius-lg:        14px;
    --radius-xl:        18px;
    --radius-pill:      999px;

    /* --- Typography --- */
    --font-base:        -apple-system, BlinkMacSystemFont, "Segoe UI",
                        Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono:        "SF Mono", "Consolas", "Monaco",
                        "Courier New", monospace;

    --fs-base:          16px;
    --fs-sm:            0.8125rem;   /* 13px */
    --fs-xs:            0.75rem;     /* 12px */
    --fs-md:            0.9375rem;   /* 15px */
    --fs-lg:            1.0625rem;   /* 17px */
    --fs-xl:            1.25rem;     /* 20px */
    --fs-2xl:           1.5rem;      /* 24px */

    --lh-tight:         1.3;
    --lh-base:          1.6;
    --lh-relaxed:       1.75;

    /* --- Transitions --- */
    --t-fast:           0.15s ease;
    --t-base:           0.25s ease;

    /* --- Shadows --- */
    --shadow-frame:     0 2px 12px rgba(0, 0, 0, 0.35);
    --shadow-hover:     0 4px 20px rgba(0, 0, 0, 0.45);
}

/* ============================================================ */
/* 2. RESET                                                      */
/* ============================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-base);
    font-size: var(--fs-base);
    line-height: var(--lh-base);
    color: var(--text-primary);
    background-color: var(--bg-deep);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

img, svg {
    max-width: 100%;
    display: block;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

a:hover {
    text-decoration-thickness: 2px;
}

ul {
    list-style: none;
}

/* ============================================================ */
/* 3. ACCESSIBILITY UTILITIES                                    */
/* ============================================================ */

/* Screen-reader only */
.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-deep);
    padding: var(--space-3) var(--space-5);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    font-weight: 700;
    font-size: var(--fs-md);
    z-index: 9999;
    text-decoration: none;
    transition: top var(--t-fast);
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
}

/* Global focus style */
:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================================ */
/* 4. LAYOUT CONTAINER                                           */
/* ============================================================ */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-4);
    padding-bottom: var(--space-7);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* ============================================================ */
/* 5. CLOCK FRAME (sticky)                                       */
/* ============================================================ */
.clock-frame {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-frame);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: var(--space-4) var(--space-5);
    box-shadow: var(--shadow-frame);
    text-align: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: box-shadow var(--t-base);
}

.clock-main {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: var(--space-2);
}

.clock-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-item);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: var(--fs-md);
}

.clock-icon {
    font-size: var(--fs-base);
    opacity: 0.75;
}

.clock-label {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-family: var(--font-base);
    font-weight: 600;
}

.clock-value {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.02em;
    font-variant-numeric: tabular-nums;
    min-width: 10ch;
    display: inline-block;
    text-align: left;
}

.clock-divider {
    color: var(--text-faint);
    font-size: var(--fs-lg);
    user-select: none;
}

.clock-date {
    font-size: var(--fs-md);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    font-weight: 500;
}

.clock-gift {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.gift-brand {
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: 0.08em;
}

/* ============================================================ */
/* 6. ACCESSIBILITY TOOLBAR                                      */
/* ============================================================ */
.a11y-toolbar {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.a11y-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-frame);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    font-weight: 600;
    transition: all var(--t-fast);
}

.a11y-btn:hover {
    background: var(--bg-btn-hover);
    border-color: var(--border-bright);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.a11y-btn[aria-pressed="true"] {
    background: var(--text-primary);
    color: var(--bg-deep);
    border-color: var(--text-primary);
}

.a11y-btn[aria-pressed="true"]:hover {
    background: var(--text-secondary);
    border-color: var(--text-secondary);
}

/* ============================================================ */
/* 7. DATA FRAMES (shared)                                       */
/* ============================================================ */
.data-frame {
    background: var(--bg-frame);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-frame);
    animation: frameFadeIn 0.35s ease;
}

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

.data-frame[hidden] {
    display: none !important;
}

/* --- Frame header --- */
.frame-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-soft);
    flex-wrap: wrap;
}

.frame-title {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-xl);
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--text-primary);
    line-height: var(--lh-tight);
}

.frame-icon {
    font-size: 1.35em;
    line-height: 1;
}

.frame-title-text {
    white-space: nowrap;
}

.frame-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.frame-updated {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    padding: var(--space-1) var(--space-3);
    background: var(--bg-item);
    border-radius: var(--radius-pill);
    white-space: nowrap;
}

/* --- Frame body --- */
.frame-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* --- Loader --- */
.frame-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-5);
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

/* --- Error --- */
.frame-error {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4);
    background: rgba(232, 116, 116, 0.08);
    border-left: 3px solid var(--sev-severe);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: var(--fs-sm);
}

.frame-error[hidden] {
    display: none !important;
}

/* --- Frame footer (buttons) --- */
.frame-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-soft);
    flex-wrap: wrap;
}

.frame-action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-btn);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all var(--t-fast);
    min-height: 40px;
}

.frame-action-btn:hover {
    background: var(--bg-btn-hover);
    border-color: var(--border-bright);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.frame-action-btn[aria-pressed="true"] {
    background: var(--text-primary);
    color: var(--bg-deep);
    border-color: var(--text-primary);
}

.frame-action-btn[aria-pressed="true"]:hover {
    background: var(--text-secondary);
    border-color: var(--text-secondary);
}

.frame-action-btn.copy-btn.success {
    background: var(--sev-none);
    border-color: var(--sev-none);
    color: var(--bg-deep);
}

.btn-icon {
    font-size: 1.05em;
    line-height: 1;
}

.btn-text {
    line-height: 1;
}

/* ============================================================ */
/* 8. ITEM CARDS (used inside frames)                            */
/* ============================================================ */

/* --- Observance item --- */
.obs-item {
    display: flex;
    flex-direction: column; /* Stack image and content vertically */
    padding: var(--space-3) var(--space-4);
    background: var(--bg-item);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    transition: all var(--t-fast);
    overflow: hidden; /* Contains image zoom */
}

.obs-item:hover {
    background: var(--bg-item-hover);
    border-color: var(--border-medium);
    transform: translateX(2px);
}

/* NEW: Image Container & Image Styles */
.obs-image-container {
    width: 100%;
    max-height: 200px;
    overflow: hidden;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-3);
    background-color: var(--bg-item-hover);
    display: flex;
    align-items: center;
    justify-content: center;
}

.obs-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--t-base);
}

.obs-item:hover .obs-image {
    transform: scale(1.03);
}

.obs-header {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
}

.obs-emoji {
    font-size: var(--fs-xl);
    line-height: 1.2;
    flex-shrink: 0;
    margin-top: 2px;
}

.obs-content {
    flex: 1;
    min-width: 0;
}

.obs-name {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--text-primary);
    line-height: var(--lh-tight);
    margin-bottom: var(--space-1);
    overflow-wrap: anywhere;
}

.obs-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-3);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    align-items: center;
}

.obs-country {
    color: var(--text-secondary);
    font-weight: 500;
}

.obs-type {
    padding: 2px var(--space-2);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-pill);
    font-size: 0.6875rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.obs-type.global {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    font-weight: 700;
}

/* --- Weather item --- */
.wx-item {
    padding: var(--space-4);
    background: var(--bg-item);
    border: 1px solid var(--border-soft);
    border-left: 3px solid var(--border-medium);
    border-radius: var(--radius-md);
    transition: all var(--t-fast);
}

.wx-item:hover {
    background: var(--bg-item-hover);
    border-color: var(--border-medium);
    border-left-color: var(--border-bright);
}

.wx-item.sev-severe   { border-left-color: var(--sev-severe); }
.wx-item.sev-moderate { border-left-color: var(--sev-moderate); }
.wx-item.sev-light    { border-left-color: var(--sev-light); }
.wx-item.sev-none     { border-left-color: var(--border-soft); }

.wx-head {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: var(--space-3);
}

.wx-emoji {
    font-size: var(--fs-xl);
    line-height: 1;
}

.wx-country {
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--text-primary);
}

.wx-severity {
    padding: 3px var(--space-3);
    border-radius: var(--radius-pill);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    margin-left: auto;
}

.wx-severity.sev-severe   { color: var(--sev-severe);   border-color: var(--sev-severe); }
.wx-severity.sev-moderate { color: var(--sev-moderate); border-color: var(--sev-moderate); }
.wx-severity.sev-light    { color: var(--sev-light);    border-color: var(--sev-light); }
.wx-severity.sev-none     { color: var(--text-muted);   border-color: var(--border-soft); }

.wx-region {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    line-height: var(--lh-base);
}

.wx-weather {
    font-size: var(--fs-md);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--lh-base);
}

.wx-detail {
    display: flex;
    gap: var(--space-2);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    line-height: var(--lh-relaxed);
    margin-top: var(--space-2);
    overflow-wrap: anywhere;
}

.wx-detail-icon {
    flex-shrink: 0;
    opacity: 0.8;
}

.wx-source {
    margin-top: var(--space-3);
    padding-top: var(--space-2);
    border-top: 1px dashed var(--border-soft);
    font-size: var(--fs-xs);
    color: var(--text-faint);
    font-style: italic;
}

/* --- Astronomy item --- */
.ast-item {
    padding: var(--space-4);
    background: var(--bg-item);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    transition: all var(--t-fast);
}

.ast-item:hover {
    background: var(--bg-item-hover);
    border-color: var(--border-medium);
    transform: translateX(2px);
}

.ast-head {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.ast-emoji {
    font-size: var(--fs-2xl);
    line-height: 1;
}

.ast-title {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--text-primary);
    line-height: var(--lh-tight);
    flex: 1;
    min-width: 0;
    overflow-wrap: anywhere;
}

.ast-time {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-xs);
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 3px var(--space-3);
    border-radius: var(--radius-pill);
    margin-bottom: var(--space-3);
}

.ast-description {
    font-size: var(--fs-md);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-3);
    overflow-wrap: anywhere;
}

.ast-visibility {
    display: flex;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    padding: var(--space-3);
    background: rgba(125, 184, 255, 0.05);
    border-left: 3px solid var(--sev-light);
    border-radius: var(--radius-sm);
    line-height: var(--lh-base);
    overflow-wrap: anywhere;
}

.ast-visibility-icon {
    flex-shrink: 0;
}

/* --- Announcement item (new.json) --- */
.ann-item {
    padding: var(--space-4);
    background: var(--bg-item);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    transition: all var(--t-fast);
}

.ann-item:hover {
    background: var(--bg-item-hover);
    border-color: var(--border-medium);
}

.ann-item.highlight {
    border-color: var(--border-bright);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.ann-head {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
}

.ann-emoji {
    font-size: var(--fs-xl);
    line-height: 1;
}

.ann-title {
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--text-primary);
    line-height: var(--lh-tight);
    flex: 1;
    min-width: 0;
    overflow-wrap: anywhere;
}

.ann-message {
    font-size: var(--fs-md);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-3);
    overflow-wrap: anywhere;
}

.ann-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--text-primary);
    color: var(--bg-deep);
    border-radius: var(--radius-pill);
    font-size: var(--fs-sm);
    font-weight: 700;
    text-decoration: none;
    transition: all var(--t-fast);
}

.ann-link:hover {
    background: var(--text-secondary);
    transform: translateY(-1px);
}

/* ============================================================ */
/* 9. ANNOUNCEMENTS FRAME (special accent)                       */
/* ============================================================ */
.announcements-frame {
    border-color: var(--border-medium);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.015) 0%, transparent 100%),
        var(--bg-frame);
}

.announcements-frame .frame-title-text {
    letter-spacing: 0.02em;
}

/* ============================================================ */
/* 10. CONTACT FRAME                                             */
/* ============================================================ */
.contact-frame {
    background: var(--bg-frame);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
    box-shadow: var(--shadow-frame);
}

.contact-title {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.contact-text {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.contact-email-wrap {
    font-size: var(--fs-md);
}

.contact-email {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--bg-item);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    word-break: break-all;
    transition: all var(--t-fast);
}

.contact-email:hover {
    background: var(--bg-item-hover);
    border-color: var(--border-bright);
    transform: translateY(-1px);
}

/* ============================================================ */
/* 11. FEATURES FOOTER                                           */
/* ============================================================ */
.features-footer {
    background: var(--bg-frame);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-frame);
}

.features-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-5);
}

.features-col {
    min-width: 0;
}

.features-col-title {
    font-size: var(--fs-xs);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding-bottom: var(--space-2);
    margin-bottom: var(--space-3);
    border-bottom: 1px solid var(--border-soft);
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.features-list li {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    line-height: var(--lh-base);
    padding-left: var(--space-4);
    position: relative;
    overflow-wrap: anywhere;
}

.features-list li::before {
    content: "·";
    position: absolute;
    left: var(--space-2);
    color: var(--text-faint);
    font-weight: 700;
}

.features-signature {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-soft);
    font-size: var(--fs-xs);
    color: var(--text-faint);
    letter-spacing: 0.03em;
}

/* ============================================================ */
/* 12. HIGH CONTRAST MODE                                        */
/* ============================================================ */
body.high-contrast {
    --bg-deep:        #000000;
    --bg-frame:       #000000;
    --bg-item:        #0A0A0A;
    --bg-item-hover:  #141414;
    --bg-btn:         #0A0A0A;
    --bg-btn-hover:   #1A1A1A;

    --border-soft:    #FFFFFF;
    --border-medium:  #FFFFFF;
    --border-bright:  #FFFFFF;

    --text-primary:   #FFFFFF;
    --text-secondary: #FFFFFF;
    --text-muted:     #E0E0E0;
    --text-faint:     #C0C0C0;

    --sev-severe:     #FF8888;
    --sev-moderate:   #FFD166;
    --sev-light:      #A8CCFF;
    --sev-none:       #A8E6B8;
}

body.high-contrast .data-frame,
body.high-contrast .clock-frame,
body.high-contrast .contact-frame,
body.high-contrast .features-footer {
    border-width: 2px;
}

body.high-contrast .obs-item,
body.high-contrast .wx-item,
body.high-contrast .ast-item,
body.high-contrast .ann-item {
    border-width: 1.5px;
}

/* NEW: High contrast border for images */
body.high-contrast .obs-image-container {
    border: 1px solid var(--border-medium);
}

body.high-contrast .a11y-btn,
body.high-contrast .frame-action-btn {
    border-width: 2px;
}

/* ============================================================ */
/* 13. TEXT SIZE MODES                                           */
/* ============================================================ */
body.text-large {
    font-size: 112.5%;  /* 18px base */
}

body.text-xlarge {
    font-size: 125%;    /* 20px base */
}

body.text-large .container,
body.text-xlarge .container {
    max-width: 1000px;
}

/* ============================================================ */
/* 14. RESPONSIVE                                                */
/* ============================================================ */
@media (max-width: 640px) {
    .container {
        padding: var(--space-3);
        gap: var(--space-4);
    }

    .clock-frame {
        padding: var(--space-3) var(--space-4);
    }

    .clock-main {
        gap: var(--space-2);
    }

    .clock-item {
        padding: var(--space-1) var(--space-3);
        font-size: var(--fs-sm);
    }

    .clock-value {
        min-width: 9ch;
    }

    .clock-date {
        font-size: var(--fs-sm);
    }

    .data-frame {
        padding: var(--space-4);
    }

    .frame-title {
        font-size: var(--fs-lg);
    }

    .frame-header {
        gap: var(--space-2);
    }

    .frame-footer {
        justify-content: stretch;
    }

    .frame-action-btn {
        flex: 1;
        justify-content: center;
    }

    .frame-action-btn .btn-text {
        display: inline;
    }

    .features-columns {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    /* NEW: Adjust image height on mobile */
    .obs-image-container {
        max-height: 150px;
    }
}

@media (max-width: 380px) {
    .a11y-btn-text {
        display: none;
    }

    .a11y-btn {
        padding: var(--space-2) var(--space-3);
    }

    .clock-label {
        display: none;
    }
}

/* ============================================================ */
/* 15. PRINT                                                     */
/* ============================================================ */
@media print {
    body {
        background: #FFFFFF;
        color: #000000;
    }

    .clock-frame,
    .a11y-toolbar,
    .frame-footer,
    .contact-frame,
    .features-footer {
        display: none;
    }

    .data-frame {
        border: 1px solid #000000;
        box-shadow: none;
        page-break-inside: avoid;
    }

    .obs-item,
    .wx-item,
    .ast-item,
    .ann-item {
        border-color: #000000;
        background: #FFFFFF;
    }
    
    /* NEW: Ensure images print nicely */
    .obs-image-container {
        border: 1px solid #000000;
        max-height: 150px;
    }
}

/* ============================================================ */
/* 16. SELECTION                                                 */
/* ============================================================ */
::selection {
    background: var(--text-primary);
    color: var(--bg-deep);
}

/* ============================================================ */
/* 17. SCROLLBAR (webkit)                                        */
/* ============================================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-bright);
}
/* ============================================================ */
/* 18. BACK TO TOP BUTTON                                        */
/* ============================================================ */
.back-to-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-frame);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-hover);
    z-index: 90;
    
    /* Hidden state setup for smooth transition */
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: opacity var(--t-base), transform var(--t-base), background var(--t-fast), border-color var(--t-fast);
}

/* Visible state when [hidden] attribute is removed via JS */
.back-to-top-btn:not([hidden]) {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-top-btn:hover {
    background: var(--bg-btn-hover);
    border-color: var(--border-bright);
    transform: translateY(-4px);
}

.back-to-top-btn:active {
    transform: translateY(0);
}

.back-to-top-btn:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 3px;
}