:root {
    --bg-base: #05070d;
    --bg-mid: #0a1020;
    --bg-elevated: #0e1528;

    --panel-bg: rgba(14, 18, 32, 0.82);
    --panel-bg-solid: #0e1528;
    --panel-border: rgba(186, 200, 255, 0.14);
    --panel-border-strong: rgba(120, 160, 255, 0.22);

    --text-main: #e8ecf7;
    --text-muted: #8b96b0;
    --text-dim: #5c667d;

    --accent-silver: #c5d0eb;
    --accent-moon: #8aa4e8;
    --accent-amber: #d9a85c;
    --accent-amber-dim: rgba(217, 168, 92, 0.12);

    --destruct: #e9637a;
    --destruct-dim: rgba(233, 99, 122, 0.14);
    --rip-warn: #e8a04a;
    --rip-warn-dim: rgba(232, 160, 74, 0.14);
    --safe: #5ecf9a;
    --safe-dim: rgba(94, 207, 154, 0.14);

    --phalanx: #6eb8ff;
    --phalanx-dim: rgba(110, 184, 255, 0.16);
    --phalanx-glow: rgba(110, 184, 255, 0.35);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 999px;

    --space-xs: 6px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 28px;
    --space-xl: 40px;

    --shadow-panel: 0 16px 48px rgba(0, 0, 0, 0.45);
    --font-tech: 'Rajdhani', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: 0.22s cubic-bezier(0.23, 1, 0.32, 1);
}

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

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .tab-content {
        animation: none !important;
    }
    .metric-tile:hover,
    .home-btn:hover,
    .btn-donate-header:hover {
        transform: none;
    }
}

body {
    background-color: var(--bg-base);
    background-image:
        radial-gradient(ellipse 120% 80% at 50% -20%, rgba(100, 130, 220, 0.18), transparent 55%),
        radial-gradient(ellipse 70% 50% at 100% 50%, rgba(40, 60, 120, 0.2), transparent),
        linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-base) 55%);
    color: var(--text-main);
    font-family: var(--font-body);
    margin: 0;
    padding: clamp(12px, 3vw, 22px);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.45;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.background-overlay {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(circle at 20% 30%, rgba(110, 184, 255, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(233, 99, 122, 0.05) 0%, transparent 38%);
}

.container {
    width: min(92vw, 1180px);
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding-bottom: var(--space-xl);
    flex: 1;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* HEADER */
.header-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--panel-border);
    flex-wrap: wrap;
}

.header-left,
.header-right {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.title-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.main-title {
    font-family: var(--font-tech);
    font-size: clamp(1.5rem, 4vw, 2.35rem);
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.04em;
    color: var(--text-main);
}

.highlight {
    color: var(--accent-silver);
    text-shadow: 0 0 24px rgba(197, 208, 235, 0.35);
}

.v-tag {
    font-size: 0.45em;
    border: 1px solid var(--panel-border-strong);
    color: var(--accent-moon);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    vertical-align: middle;
    margin-left: 10px;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.header-tagline {
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 500;
    max-width: 42ch;
}

.home-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border: 1px solid var(--panel-border-strong);
    color: var(--accent-silver);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.03);
    transition: border-color var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}

.home-btn:hover {
    border-color: var(--accent-moon);
    color: var(--text-main);
    box-shadow: 0 0 0 1px rgba(138, 164, 232, 0.35);
}

.home-btn:focus-visible {
    outline: 2px solid var(--accent-moon);
    outline-offset: 3px;
}

.btn-donate-header {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--accent-amber-dim);
    border: 1px solid rgba(217, 168, 92, 0.45);
    color: var(--accent-amber);
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-family: var(--font-tech);
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.btn-donate-header:hover {
    background: rgba(217, 168, 92, 0.22);
    color: #fff5e0;
    border-color: var(--accent-amber);
    box-shadow: 0 0 24px rgba(217, 168, 92, 0.2);
}

.btn-donate-header:focus-visible {
    outline: 2px solid var(--accent-amber);
    outline-offset: 3px;
}

.lang-select {
    background: var(--panel-bg-solid);
    border: 1px solid var(--panel-border-strong);
    color: var(--text-muted);
    padding: 8px 12px;
    font-family: var(--font-tech);
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition);
}

.lang-select:hover,
.lang-select:focus-visible {
    border-color: var(--accent-moon);
    color: var(--text-main);
    outline: none;
}

.lang-select:focus-visible {
    box-shadow: 0 0 0 2px var(--phalanx-dim);
}

.lang-select option {
    background-color: var(--panel-bg-solid);
    color: var(--text-main);
}

/* SEGMENTED TABS */
.tabs-nav {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
    padding: 5px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-pill);
    gap: 4px;
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-tech);
    font-weight: 700;
    font-size: clamp(0.78rem, 2vw, 1rem);
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.tab-btn i {
    font-size: 1rem;
    opacity: 0.85;
}

.tab-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
}

.tab-btn:focus-visible {
    outline: 2px solid var(--accent-moon);
    outline-offset: 2px;
}

.tab-btn.active[data-tab='destruct'] {
    background: var(--destruct-dim);
    color: var(--destruct);
    box-shadow: inset 0 0 0 1px rgba(233, 99, 122, 0.35);
}

.tab-btn.active[data-tab='phalanx'] {
    background: var(--phalanx-dim);
    color: var(--phalanx);
    box-shadow: inset 0 0 0 1px rgba(110, 184, 255, 0.35);
}

.tab-content {
    display: none;
    animation: fadeIn 0.28s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    @keyframes fadeIn {
        from {
            opacity: 0;
        }
        to {
            opacity: 1;
        }
    }
}

/* PANEL */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg);
    padding: clamp(18px, 3vw, 30px);
    box-shadow: var(--shadow-panel);
}

.panel-head {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--panel-border);
}

.panel-title {
    margin: 0 0 var(--space-xs) 0;
    font-family: var(--font-tech);
    font-size: clamp(1.15rem, 2.5vw, 1.45rem);
    letter-spacing: 0.06em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.panel-title i {
    opacity: 0.9;
}

.panel-subtitle {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    max-width: 62ch;
    line-height: 1.5;
}

.destruction-theme .panel-title {
    color: var(--destruct);
}

.phalanx-theme .panel-title {
    color: var(--phalanx);
}

.input-section {
    margin-bottom: var(--space-lg);
}

.input-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.input-group label {
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.input-cyber {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    padding: 14px 14px;
    font-family: var(--font-tech);
    font-size: clamp(1.25rem, 3vw, 1.55rem);
    font-weight: 700;
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.input-cyber::placeholder {
    color: var(--text-dim);
    font-weight: 600;
}

.input-cyber:focus {
    outline: none;
}

.input-cyber:focus-visible {
    outline: 2px solid transparent;
}

.destruction-theme .input-cyber:focus {
    border-color: rgba(233, 99, 122, 0.65);
    box-shadow: 0 0 0 3px var(--destruct-dim);
}

.phalanx-theme .input-cyber:focus {
    border-color: rgba(110, 184, 255, 0.65);
    box-shadow: 0 0 0 3px var(--phalanx-dim);
}

input[type='number']::-webkit-outer-spin-button,
input[type='number']::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type='number'] {
    appearance: textfield;
    -moz-appearance: textfield;
}

.results-section {
    padding-top: var(--space-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.metric-tile {
    position: relative;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

@media (prefers-reduced-motion: no-preference) {
    .metric-tile:hover {
        transform: translateY(-3px);
    }
}

.metric-tile--moon:hover {
    border-color: rgba(233, 99, 122, 0.45);
    background: var(--destruct-dim);
}

.metric-tile--rip:hover {
    border-color: rgba(232, 160, 74, 0.45);
    background: var(--rip-warn-dim);
}

.metric-tile--safe:hover {
    border-color: rgba(94, 207, 154, 0.45);
    background: var(--safe-dim);
}

.metric-tile-top {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.metric-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--panel-border);
}

.metric-tile--moon .metric-badge {
    color: var(--destruct);
    border-color: rgba(233, 99, 122, 0.25);
}

.metric-tile--rip .metric-badge {
    color: var(--rip-warn);
    border-color: rgba(232, 160, 74, 0.25);
}

.metric-tile--safe .metric-badge {
    color: var(--safe);
    border-color: rgba(94, 207, 154, 0.25);
}

.res-lbl {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.3;
}

.res-val {
    font-family: var(--font-tech);
    font-size: clamp(1.65rem, 4vw, 2.15rem);
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.1;
}

.metric-bar {
    height: 6px;
    border-radius: var(--radius-pill);
    background: rgba(0, 0, 0, 0.35);
    overflow: hidden;
    margin-top: auto;
}

.metric-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-pill);
    transition: width 0.35s ease;
}

@media (prefers-reduced-motion: reduce) {
    .metric-bar-fill {
        transition: none;
    }
}

.metric-bar-fill--moon {
    background: linear-gradient(90deg, rgba(233, 99, 122, 0.5), var(--destruct));
}

.metric-bar-fill--rip {
    background: linear-gradient(90deg, rgba(232, 160, 74, 0.5), var(--rip-warn));
}

.metric-bar-fill--safe {
    background: linear-gradient(90deg, rgba(94, 207, 154, 0.5), var(--safe));
}

/* PHALANX */
.phal-result-box {
    text-align: center;
    margin-top: var(--space-sm);
}

.range-display {
    margin-bottom: var(--space-lg);
}

.range-label {
    display: block;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.range-val {
    font-family: var(--font-tech);
    font-size: clamp(2.5rem, 8vw, 3.6rem);
    font-weight: 700;
    color: var(--phalanx);
    text-shadow: 0 0 28px var(--phalanx-glow);
    display: block;
    line-height: 1;
}

.range-unit {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 600;
}

.galaxy-viz {
    text-align: left;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(110, 184, 255, 0.18);
    border-radius: var(--radius-md);
}

.galaxy-viz-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-tech);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--text-dim);
    margin-bottom: 10px;
}

.galaxy-viz-labels span:nth-child(2) {
    color: var(--text-muted);
    letter-spacing: 0.18em;
}

.galaxy-track {
    position: relative;
    height: 14px;
    border-radius: var(--radius-pill);
    overflow: visible;
}

.galaxy-track-bg {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-pill);
    background: linear-gradient(
        90deg,
        rgba(30, 40, 70, 0.9) 0%,
        rgba(60, 80, 130, 0.5) 50%,
        rgba(30, 40, 70, 0.9) 100%
    );
    border: 1px solid rgba(110, 184, 255, 0.15);
}

.galaxy-range {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 0%;
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg, rgba(110, 184, 255, 0.45), rgba(110, 184, 255, 0.2));
    box-shadow: 0 0 16px var(--phalanx-glow);
    pointer-events: none;
    transition: left var(--transition), width var(--transition), opacity var(--transition);
}

.galaxy-range.is-empty {
    opacity: 0;
}

.galaxy-pin {
    position: absolute;
    top: 50%;
    width: 3px;
    height: 22px;
    margin-top: -11px;
    margin-left: -1.5px;
    border-radius: 2px;
    background: var(--text-main);
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.7), 0 0 20px var(--phalanx);
    left: 0%;
    opacity: 0;
    pointer-events: none;
    transition: left var(--transition), opacity var(--transition);
}

.galaxy-pin.is-visible {
    opacity: 1;
}

.galaxy-caption {
    margin: 12px 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    text-align: center;
}

.range-visual {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    background: rgba(0, 0, 0, 0.22);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--panel-border);
}

.range-limit {
    text-align: center;
    min-width: 3.5rem;
}

.limit-lbl {
    display: block;
    font-size: 0.68rem;
    color: var(--text-dim);
    margin-bottom: 4px;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.limit-val {
    font-family: var(--font-tech);
    font-size: 1.35rem;
    color: var(--text-main);
    font-weight: 700;
}

.range-line {
    flex: 1;
    height: 3px;
    background: rgba(110, 184, 255, 0.22);
    margin: 0 8px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: var(--radius-pill);
}

.range-dot {
    width: 9px;
    height: 9px;
    background: var(--phalanx);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--phalanx-glow);
    z-index: 1;
}

.range-beam {
    position: absolute;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--phalanx);
    opacity: 0.35;
    filter: blur(5px);
    border-radius: var(--radius-pill);
}

@media (max-width: 768px) {
    .input-grid,
    .results-grid {
        grid-template-columns: 1fr;
    }

    .tabs-nav {
        flex-direction: column;
        border-radius: var(--radius-md);
        max-width: none;
    }

    .tab-btn {
        border-radius: var(--radius-md);
    }

    .range-visual {
        flex-direction: column;
    }

    .range-line {
        width: 100%;
        margin: 10px 0;
    }
}

/* ── 360–480px tweaks ─────────────────────────────────────── */
@media (max-width: 480px) {
    body { padding: 10px; }

    .container { width: 100%; }

    .header-section { flex-direction: column; gap: 10px; }

    .header-right { flex-wrap: wrap; gap: 8px; }

    .tabs-nav {
        flex-direction: row;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 8px;
        gap: 4px;
        padding: 4px;
    }

    .tab-btn { padding: 10px 10px; font-size: 0.75rem; gap: 6px; }

    .results-grid { grid-template-columns: 1fr; }

    .range-visual { flex-direction: column; }
    .range-line { width: 100%; margin: 8px 0; }
}

/* ── ui-mobile overrides ──────────────────────────────────── */
/* ═══════════════════════════════════════════════════════════
   GENUINE MOBILE UI — body.ui-mobile (Ogame-Moon)
   ═══════════════════════════════════════════════════════════ */

/* Layout */
body.ui-mobile .input-grid { grid-template-columns: 1fr !important; }
body.ui-mobile .results-grid { grid-template-columns: 1fr !important; }
body.ui-mobile .range-visual { flex-direction: column !important; }
body.ui-mobile .range-line { width: 100% !important; margin: 10px 0 !important; }

/* Tab nav — horizontal scrollable row */
body.ui-mobile .tabs-nav {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    justify-content: flex-start !important;
    max-width: 100% !important;
    gap: 6px !important;
    padding: 5px !important;
}
body.ui-mobile .tab-btn {
    min-height: 52px !important;
    padding: 12px 18px !important;
    font-size: 0.95rem !important;
    flex: 1 !important;
}

/* Inputs — big, touch-friendly */
body.ui-mobile .input-cyber {
    font-size: 1.5rem !important;
    min-height: 56px !important;
    padding: 14px !important;
}
body.ui-mobile .input-group label {
    font-size: 0.85rem !important;
    font-weight: 700 !important;
    margin-bottom: 6px !important;
}

/* Result tiles — very prominent percentages */
body.ui-mobile .metric-tile {
    padding: 18px 16px !important;
    border-radius: 16px !important;
}
body.ui-mobile .res-val {
    font-size: 2.8rem !important;
    line-height: 1 !important;
}
body.ui-mobile .res-lbl {
    font-size: 0.8rem !important;
    margin-bottom: 8px !important;
}
body.ui-mobile .metric-badge {
    width: 48px !important;
    height: 48px !important;
    font-size: 1.3rem !important;
}

/* Phalanx: range number huge */
body.ui-mobile .range-val {
    font-size: 3.5rem !important;
    line-height: 1 !important;
}
body.ui-mobile .range-label {
    font-size: 0.85rem !important;
    margin-bottom: 10px !important;
}
body.ui-mobile .range-unit { font-size: 1rem !important; }

/* Range limit boxes */
body.ui-mobile .limit-val {
    font-size: 1.6rem !important;
    font-weight: 800 !important;
}

/* Panel */
body.ui-mobile .glass-panel {
    border-radius: 16px !important;
    padding: 20px 16px !important;
}
body.ui-mobile .panel-title {
    font-size: 1.2rem !important;
}