/* ── HYDI ROI Calculator — Public Styles ── */

/* CSS custom properties — accent/highlight overridden via inline style from JS */
.hydi-roi-section {
    --hydi-accent:    #00a0e3;
    --hydi-highlight: #00d4aa;
    --hydi-bg:        #0e1a30;
    --hydi-panel-bg:  rgba(255,255,255,0.035);
    --hydi-border:    rgba(255,255,255,0.07);
    --hydi-text:      #e8edf4;
    --hydi-text-dim:  rgba(232,237,244,0.6);
    --hydi-text-faint:rgba(232,237,244,0.35);
    --hydi-input-bg:  #0f1f3a;
    --hydi-gold:      #f5c842;
    font-family: 'Outfit', 'Inter', system-ui, sans-serif;
}

/* ── SECTION WRAPPER ────────────────────────────────────────────────────────── */
.hydi-roi-section {
    background: var(--hydi-bg);
    padding: 72px 48px;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

#hydi-roi-particles {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
}

.hydi-roi-container {
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* ── HEADER ────────────────────────────────────────────────────────────────── */
.hydi-calc-header {
    text-align: center;
    margin-bottom: 48px;
}

.hydi-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,160,227,0.12);
    border: 1px solid rgba(0,160,227,0.18);
    border-radius: 28px;
    padding: 8px 22px;
    margin-bottom: 20px;
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--hydi-accent);
    font-weight: 500;
}

.hydi-dot {
    display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--hydi-accent);
    animation: hydi-pulse-dot 2s infinite;
}
@keyframes hydi-pulse-dot {
    0%,100%{opacity:1;transform:scale(1)}
    50%{opacity:0.4;transform:scale(0.7)}
}

.hydi-calc-heading {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(28px, 4.5vw, 48px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 14px;
    color: var(--hydi-text);
}

.hydi-calc-sub {
    font-size: 17px;
    color: var(--hydi-text-dim);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 300;
}

/* ── GRID ───────────────────────────────────────────────────────────────────── */
.hydi-calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: stretch;
}

@media (max-width: 820px) {
    .hydi-calc-grid { grid-template-columns: 1fr; }
    .hydi-roi-section { padding: 48px 20px; }
}

/* ── PANELS ─────────────────────────────────────────────────────────────────── */
.hydi-input-panel,
.hydi-results-panel {
    background: var(--hydi-panel-bg);
    border: 1px solid var(--hydi-border);
    border-radius: 16px;
    padding: 32px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.hydi-panel-title {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--hydi-accent);
    margin-bottom: 28px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}
.hydi-panel-title::before {
    content: '';
    display: block;
    width: 24px; height: 2px;
    background: var(--hydi-accent);
}

/* ── ENGINE SEARCH ──────────────────────────────────────────────────────────── */
.hydi-engine-group {
    margin-bottom: 20px;
    padding: 16px;
    background: rgba(0,160,227,0.08);
    border: 1px solid rgba(0,160,227,0.15);
    border-radius: 12px;
}
.hydi-engine-group label {
    display: block;
    font-size: 13px;
    color: var(--hydi-text-dim);
    margin-bottom: 8px;
}
.hydi-engine-group label span {
    color: var(--hydi-accent);
    font-size: 11px;
}
.hydi-engine-wrap { position: relative; }

.hydi-engine-icon {
    position: absolute;
    left: 14px; top: 50%;
    transform: translateY(-50%);
    width: 18px; height: 18px;
    color: rgba(232,237,244,0.25);
    pointer-events: none;
}

.hydi-engine-search {
    width: 100%;
    padding: 12px 14px 12px 42px;
    background: var(--hydi-input-bg);
    border: 1px solid var(--hydi-border);
    border-radius: 10px;
    color: var(--hydi-text);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.hydi-engine-search::placeholder { color: rgba(232,237,244,0.25); }
.hydi-engine-search:focus {
    border-color: rgba(0,160,227,0.4);
    box-shadow: 0 0 0 3px rgba(0,160,227,0.1);
}

.hydi-engine-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0; right: 0;
    z-index: 100;
    background: var(--hydi-input-bg);
    border: 1px solid var(--hydi-border);
    border-radius: 10px;
    max-height: 220px;
    overflow-y: auto;
    display: none;
}
.hydi-engine-dropdown.show { display: block; }

.hydi-eng-option {
    padding: 11px 14px;
    font-size: 13px;
    color: var(--hydi-text-dim);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.15s;
}
.hydi-eng-option:hover { background: rgba(0,160,227,0.08); color: var(--hydi-text); }
.hydi-eng-consumption {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--hydi-accent);
}

.hydi-engine-info {
    margin-top: 6px;
    padding: 7px 12px;
    background: rgba(0,160,227,0.06);
    border-radius: 8px;
    font-size: 12px;
    color: var(--hydi-accent);
    display: none;
    align-items: center;
    gap: 6px;
}
.hydi-engine-info.show { display: flex; }

/* ── SLIDERS ────────────────────────────────────────────────────────────────── */
.hydi-slider-group { margin-bottom: 20px; }

.hydi-slider-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
}
.hydi-sl-text {
    font-size: 13px;
    color: var(--hydi-text-dim);
}
.hydi-sl-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 600;
    color: var(--hydi-text);
    transition: color 0.3s;
}
.hydi-sl-value.hydi-accent { color: var(--hydi-accent); }

.hydi-input-panel input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #0a1628;
    outline: none;
    cursor: pointer;
}
.hydi-input-panel input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--hydi-accent);
    border: 3px solid var(--hydi-bg);
    box-shadow: 0 0 12px rgba(0,160,227,0.35);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}
.hydi-input-panel input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 0 20px rgba(0,160,227,0.5);
}
.hydi-input-panel input[type="range"]::-moz-range-thumb {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--hydi-accent);
    border: 3px solid var(--hydi-bg);
    cursor: pointer;
}

.hydi-slider-ticks {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
    padding: 0 2px;
}
.hydi-slider-ticks span {
    font-size: 10px;
    color: var(--hydi-text-faint);
    font-family: 'JetBrains Mono', monospace;
}

/* ── SCENARIO BUTTONS ───────────────────────────────────────────────────────── */
.hydi-scenario-group { margin-top: 4px; }

.hydi-scenario-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
}

.hydi-scenario-buttons { display: flex; gap: 8px; }

.hydi-scenario-btn {
    flex: 1;
    background: var(--hydi-input-bg);
    border: 1px solid var(--hydi-border);
    border-radius: 10px;
    padding: 12px 8px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: inherit;
}
.hydi-scenario-btn:hover {
    border-color: rgba(0,160,227,0.25);
    background: rgba(0,160,227,0.04);
}
.hydi-scenario-btn.active {
    border-color: rgba(0,160,227,0.5);
    background: rgba(0,160,227,0.08);
    box-shadow: 0 0 16px rgba(0,160,227,0.1);
}

.hydi-scenario-pct {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 700;
    color: var(--hydi-text-faint);
    transition: color 0.3s;
}
.hydi-scenario-btn.active .hydi-scenario-pct { color: var(--hydi-accent); }

.hydi-scenario-name {
    font-size: 11px;
    font-weight: 600;
    color: rgba(232,237,244,0.5);
    transition: color 0.3s;
}
.hydi-scenario-btn.active .hydi-scenario-name { color: var(--hydi-text); }

.hydi-scenario-desc {
    font-size: 10px;
    color: rgba(232,237,244,0.35);
    line-height: 1.3;
    transition: color 0.3s;
}
.hydi-scenario-btn.active .hydi-scenario-desc { color: rgba(232,237,244,0.7); }

/* ── RESULTS CARD ───────────────────────────────────────────────────────────── */
.hydi-results-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.hydi-hero-stat {
    text-align: center;
    padding: 24px 0;
    border-bottom: 1px solid var(--hydi-border);
    margin-bottom: 20px;
}
.hydi-big-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 700;
    color: var(--hydi-accent);
    line-height: 1;
    margin-bottom: 6px;
    transition: color 0.3s;
}
.hydi-big-label {
    font-size: 12px;
    color: var(--hydi-text-dim);
    font-weight: 400;
    letter-spacing: 0.02em;
}

.hydi-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.hydi-result-row.hydi-no-border { border-bottom: none; padding-bottom: 0; }

.hydi-cr-label {
    font-size: 13px;
    color: var(--hydi-text-dim);
}
.hydi-cr-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--hydi-text);
}
.hydi-cr-value.hydi-savings  { color: var(--hydi-highlight); }
.hydi-cr-value.hydi-emissions { color: var(--hydi-highlight); }
.hydi-cr-value.hydi-gold     { color: var(--hydi-gold); }

/* ── PAYBACK BAR ────────────────────────────────────────────────────────────── */
.hydi-payback-section { margin-top: 4px; }

.hydi-payback-track {
    height: 6px;
    background: #0a1628;
    border-radius: 3px;
    margin: 8px 0 4px;
    overflow: hidden;
}
.hydi-payback-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--hydi-highlight), var(--hydi-accent));
    transition: width 0.5s ease;
}
.hydi-payback-labels {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--hydi-text-faint);
    font-family: 'JetBrains Mono', monospace;
}

/* ── CTA / FORM ─────────────────────────────────────────────────────────────── */
.hydi-cta-section {
    margin-top: auto;
    padding-top: 20px;
}

.hydi-form-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--hydi-text);
    margin-bottom: 4px;
}
.hydi-form-hint {
    font-size: 11px;
    color: rgba(232,237,244,0.4);
    margin-bottom: 14px;
}
.hydi-form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 8px;
}

.hydi-form-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--hydi-input-bg);
    border: 1px solid var(--hydi-border);
    border-radius: 8px;
    color: var(--hydi-text);
    font-family: inherit;
    font-size: 13px;
    outline: none;
    box-sizing: border-box;
    margin-bottom: 8px;
    transition: border-color 0.2s;
}
.hydi-form-input::placeholder { color: rgba(232,237,244,0.25); }
.hydi-form-input:focus { border-color: rgba(0,160,227,0.4); }

.hydi-cta-btn {
    width: 100%;
    padding: 15px 20px;
    background: var(--hydi-accent);
    color: #fff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 4px 20px rgba(0,160,227,0.3);
    margin-bottom: 10px;
}
.hydi-cta-btn:hover {
    background: #0085be;
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0,160,227,0.4);
}
.hydi-cta-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.hydi-cta-sub {
    text-align: center;
    font-size: 12px;
    color: rgba(232,237,244,0.4);
    line-height: 1.5;
}

.hydi-success-box {
    padding: 16px;
    background: rgba(0,212,170,0.08);
    border: 1px solid rgba(0,212,170,0.2);
    border-radius: 10px;
    margin-top: 12px;
}
.hydi-success-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--hydi-highlight);
    margin-bottom: 6px;
}
.hydi-success-body {
    font-size: 13px;
    color: rgba(232,237,244,0.55);
    line-height: 1.5;
}

/* ── DISCLAIMER ─────────────────────────────────────────────────────────────── */
.hydi-disclaimer {
    text-align: center;
    margin-top: 28px;
    font-size: 11px;
    color: rgba(232,237,244,0.3);
    line-height: 1.7;
}

/* ── ADMIN PANEL STYLES ─────────────────────────────────────────────────────── */