/**
 * Pozdrower – Kalkulator Zasięgu E-roweru
 * Blue accent theme, same design system as other calcs
 */

.pzd-rng {
    --pzd-blue: #2c5aa0;
    --pzd-blue-light: #e8eff8;
    --pzd-blue-dark: #1d3f72;
    --pzd-yellow: #ffc107;
    --pzd-yellow-light: #fff8e1;
    --pzd-green: #28a745;
    --pzd-green-light: #d4edda;
    --pzd-red: #dc3545;
    --pzd-teal: #20c997;
    --pzd-orange: #fd7e14;
    --pzd-text: #333;
    --pzd-text-mid: #495057;
    --pzd-text-light: #6c757d;
    --pzd-bg: #f8f9fa;
    --pzd-white: #fff;
    --pzd-border: #e0e4e8;
    --pzd-radius: 12px;
    --pzd-radius-sm: 8px;
    --pzd-shadow: 0 2px 8px rgba(0,0,0,0.08);
    --pzd-shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --pzd-transition: 0.25s ease;

    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6; color: var(--pzd-text);
    max-width: 820px; margin: 0 auto; padding: 0;
}
.pzd-rng *, .pzd-rng *::before, .pzd-rng *::after { box-sizing: border-box; }

/* Hero */
.pzd-rng__hero {
    background: linear-gradient(135deg, var(--pzd-blue), var(--pzd-blue-dark));
    color: var(--pzd-white); padding: 40px 32px;
    border-radius: var(--pzd-radius); text-align: center;
    margin-bottom: 28px; position: relative; overflow: hidden;
}
.pzd-rng__hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 300px; height: 300px; background: rgba(255,255,255,0.05); border-radius: 50%; pointer-events: none; }
.pzd-rng__hero-icon { color: var(--pzd-yellow); margin-bottom: 16px; }
.pzd-rng__hero-title { font-size: 1.6em; font-weight: 700; margin: 0 0 12px 0; color: var(--pzd-white); border: none; padding: 0; line-height: 1.3; }
.pzd-rng__hero-sub { font-size: 1em; opacity: 0.9; margin: 0 auto; max-width: 580px; }

/* Sections */
.pzd-rng__section { background: var(--pzd-white); border: 1px solid var(--pzd-border); border-radius: var(--pzd-radius); padding: 28px; margin-bottom: 20px; box-shadow: var(--pzd-shadow); }
.pzd-rng__section-header { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.pzd-rng__section-number { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; min-width: 36px; background: var(--pzd-blue); color: var(--pzd-white); border-radius: 50%; font-weight: 700; font-size: 1em; }
.pzd-rng__section-title { font-size: 1.25em; font-weight: 700; color: var(--pzd-blue); margin: 0 0 4px 0; padding: 0; border: none; }
.pzd-rng__section-desc { font-size: 0.9em; color: var(--pzd-text-light); margin: 0; }

/* Presets */
.pzd-rng__presets { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
#pzd-rng .pzd-rng__preset-btn { flex: 1 !important; min-width: 80px !important; padding: 10px 8px !important; border: 2px solid var(--pzd-border) !important; border-radius: var(--pzd-radius-sm) !important; background: var(--pzd-bg) !important; color: #888 !important; font-size: 0.9em !important; font-weight: 600 !important; cursor: pointer !important; transition: all var(--pzd-transition) !important; text-align: center !important; font-family: inherit !important; line-height: 1.3 !important; min-height: 48px !important; }
#pzd-rng .pzd-rng__preset-btn span { display: block !important; font-weight: 500 !important; font-size: 0.78em !important; color: #aaa !important; margin-top: 2px !important; }
#pzd-rng .pzd-rng__preset-btn: hover { border-color: var(--pzd-blue) !important; background: var(--pzd-white) !important; color: var(--pzd-text) !important; }
#pzd-rng .pzd-rng__preset-btn: hover span { color: var(--pzd-text-mid) !important; }
#pzd-rng .pzd-rng__preset-btn--active { border-color: var(--pzd-blue) !important; background: var(--pzd-blue) !important; color: var(--pzd-white) !important; font-weight: 700 !important; box-shadow: 0 3px 12px rgba(44, 90, 160, 0.35) !important; transform: translateY(-1px) !important; }
#pzd-rng .pzd-rng__preset-btn--active span { color: rgba(255, 255, 255, 0.85) !important; font-weight: 600 !important; }

/* Fields & Sliders */
.pzd-rng__field { margin-bottom: 20px; }
.pzd-rng__label { display: block; font-weight: 600; font-size: 0.9em; color: var(--pzd-text); margin-bottom: 10px; }
.pzd-rng__slider-row { display: flex; align-items: center; gap: 16px; }
.pzd-rng__slider { flex: 1; -webkit-appearance: none; appearance: none; height: 8px; border-radius: 4px; background: var(--pzd-border); outline: none; cursor: pointer; transition: background var(--pzd-transition); padding: 12px 0; margin: -12px 0; background-clip: content-box; }
.pzd-rng__slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 28px; height: 28px; border-radius: 50%; background: var(--pzd-blue); border: 3px solid var(--pzd-white); box-shadow: 0 1px 6px rgba(0,0,0,0.25); cursor: pointer; transition: transform 0.15s ease; }
.pzd-rng__slider::-webkit-slider-thumb:hover { transform: scale(1.1); }
.pzd-rng__slider::-moz-range-thumb { width: 28px; height: 28px; border-radius: 50%; background: var(--pzd-blue); border: 3px solid var(--pzd-white); box-shadow: 0 1px 6px rgba(0,0,0,0.25); cursor: pointer; }
.pzd-rng__slider-val { min-width: 85px; text-align: right; font-weight: 700; font-size: 0.95em; color: var(--pzd-blue); white-space: nowrap; flex-shrink: 0; }
.pzd-rng__slider-val--big { font-size: 1.15em; min-width: 100px; color: var(--pzd-blue-dark); }
.pzd-rng__hint { font-size: 0.8em; color: var(--pzd-text-light); margin: 6px 0 0 0; font-style: italic; }

/* Assist level grid */
.pzd-rng__assist-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
#pzd-rng .pzd-rng__assist-btn { padding: 16px 10px !important; border: 2px solid var(--pzd-border) !important; border-radius: var(--pzd-radius) !important; background: var(--pzd-bg) !important; cursor: pointer !important; transition: all var(--pzd-transition) !important; text-align: center !important; font-family: inherit !important; display: flex !important; flex-direction: column !important; align-items: center !important; gap: 6px !important; min-height: 48px !important; }
#pzd-rng .pzd-rng__assist-btn: hover { border-color: var(--pzd-blue) !important; background: var(--pzd-white) !important; }
#pzd-rng .pzd-rng__assist-btn--active { border-color: var(--pzd-blue) !important; background: var(--pzd-blue) !important; color: var(--pzd-white) !important; font-weight: 700 !important; box-shadow: 0 3px 12px rgba(44, 90, 160, 0.35) !important; transform: translateY(-1px) !important; }
#pzd-rng .pzd-rng__assist-btn--active .pzd-rng__assist-icon { color: var(--pzd-white) !important; }
#pzd-rng .pzd-rng__assist-btn--active .pzd-rng__assist-name { color: var(--pzd-white) !important; }
#pzd-rng .pzd-rng__assist-btn--active .pzd-rng__assist-desc { color: rgba(255, 255, 255, 0.8) !important; }
.pzd-rng__assist-icon { font-size: 1.5em; opacity: 0.5; transition: opacity var(--pzd-transition); }
#pzd-rng .pzd-rng__assist-btn: hover .pzd-rng__assist-icon { opacity: 0.8 !important; }
#pzd-rng .pzd-rng__assist-btn--active .pzd-rng__assist-icon { opacity: 1 !important; }
.pzd-rng__assist-icon--eco { color: var(--pzd-green); }
.pzd-rng__assist-icon--tour { color: var(--pzd-blue); }
.pzd-rng__assist-icon--sport { color: var(--pzd-orange); }
.pzd-rng__assist-icon--turbo { color: var(--pzd-red); }
.pzd-rng__assist-name { font-weight: 600; font-size: 0.9em; color: #888; transition: color var(--pzd-transition); }
#pzd-rng .pzd-rng__assist-btn: hover .pzd-rng__assist-name { color: var(--pzd-text) !important; }
.pzd-rng__assist-desc { font-size: 0.72em; color: #bbb; line-height: 1.3; }

/* Option buttons (terrain, wind) */
.pzd-rng__option-grid { display: flex; gap: 8px; flex-wrap: wrap; }
#pzd-rng .pzd-rng__option-grid--4 .pzd-rng__option-btn { flex: 1 !important; min-width: 100px !important; }
#pzd-rng .pzd-rng__option-grid--3 .pzd-rng__option-btn { flex: 1 !important; min-width: 100px !important; }
#pzd-rng .pzd-rng__option-btn { padding: 10px 14px !important; border: 2px solid var(--pzd-border) !important; border-radius: var(--pzd-radius-sm) !important; background: var(--pzd-bg) !important; color: #888 !important; font-size: 0.86em !important; font-weight: 500 !important; cursor: pointer !important; transition: all var(--pzd-transition) !important; font-family: inherit !important; min-height: 48px !important; text-align: center !important; }
#pzd-rng .pzd-rng__option-btn: hover { border-color: var(--pzd-blue) !important; color: var(--pzd-blue) !important; background: var(--pzd-white) !important; }
#pzd-rng .pzd-rng__option-btn--active { border-color: var(--pzd-blue) !important; background: var(--pzd-blue) !important; color: var(--pzd-white) !important; font-weight: 700 !important; box-shadow: 0 3px 12px rgba(44, 90, 160, 0.35) !important; transform: translateY(-1px) !important; }
.pzd-rng__option-icon { display: block; font-size: 1.1em; margin-bottom: 2px; }

/* Calculate button */
.pzd-rng__action { text-align: center; margin-bottom: 28px; }
#pzd-rng .pzd-rng__calculate-btn { display: inline-flex !important; align-items: center !important; gap: 10px !important; padding: 16px 40px !important; background: linear-gradient(135deg, var(--pzd-blue), var(--pzd-blue-dark)) !important; color: var(--pzd-white) !important; border: none !important; border-radius: 50px !important; font-size: 1.1em !important; font-weight: 700 !important; cursor: pointer !important; box-shadow: 0 4px 16px rgba(44,90,160,0.35) !important; transition: all var(--pzd-transition) !important; font-family: inherit !important; min-height: 52px !important; }
#pzd-rng .pzd-rng__calculate-btn: hover { transform: translateY(-2px) !important; box-shadow: 0 6px 24px rgba(44,90,160,0.45) !important; }
#pzd-rng .pzd-rng__calculate-btn: active { transform: translateY(0) !important; }

/* Results */
.pzd-rng__results { animation: pzdRngFadeIn 0.5s ease; }
@keyframes pzdRngFadeIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

.pzd-rng__result-hero { background: linear-gradient(135deg, var(--pzd-blue), var(--pzd-blue-dark)); color: var(--pzd-white); border-radius: var(--pzd-radius); padding: 36px 28px; text-align: center; margin-bottom: 24px; box-shadow: var(--pzd-shadow-lg); }
.pzd-rng__result-hero-label { font-size: 1em; opacity: 0.85; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.pzd-rng__result-hero-value { font-size: 3em; font-weight: 800; line-height: 1.1; margin-bottom: 8px; }
.pzd-rng__result-hero-sub { font-size: 1em; opacity: 0.85; }

/* Range band */
.pzd-rng__range-band { background: var(--pzd-white); border: 1px solid var(--pzd-border); border-radius: var(--pzd-radius); padding: 24px; margin-bottom: 24px; box-shadow: var(--pzd-shadow); }
.pzd-rng__range-band-header { font-weight: 700; font-size: 0.95em; margin-bottom: 16px; color: var(--pzd-text); text-align: center; }
.pzd-rng__range-bar-wrap { max-width: 500px; margin: 0 auto; }
.pzd-rng__range-bar { height: 16px; background: linear-gradient(90deg, var(--pzd-red), var(--pzd-orange), var(--pzd-yellow), var(--pzd-green)); border-radius: 8px; position: relative; margin-bottom: 8px; }
.pzd-rng__range-bar-fill { display: none; }
.pzd-rng__range-bar-marker { position: absolute; top: -4px; width: 4px; height: 24px; background: var(--pzd-text); border-radius: 2px; transition: left var(--pzd-transition); box-shadow: 0 0 0 3px rgba(255,255,255,0.9); }
.pzd-rng__range-labels { display: flex; justify-content: space-between; font-weight: 800; font-size: 1em; color: var(--pzd-text); }
.pzd-rng__range-sublabels { display: flex; justify-content: space-between; font-size: 0.72em; color: var(--pzd-text-light); margin-top: 2px; }

/* Stats grid */
.pzd-rng__stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 28px; }
.pzd-rng__stat-card { background: var(--pzd-white); border: 1px solid var(--pzd-border); border-radius: var(--pzd-radius); padding: 20px; text-align: center; box-shadow: var(--pzd-shadow); transition: transform var(--pzd-transition); }
.pzd-rng__stat-card:hover { transform: translateY(-2px); }
.pzd-rng__stat-icon { margin-bottom: 10px; }
.pzd-rng__stat-value { font-size: 1.3em; font-weight: 800; color: var(--pzd-text); margin-bottom: 4px; }
.pzd-rng__stat-label { font-size: 0.8em; color: var(--pzd-text-mid); line-height: 1.3; }

/* Factors */
.pzd-rng__factors { background: var(--pzd-bg); border: 1px solid var(--pzd-border); border-radius: var(--pzd-radius); padding: 24px; margin-bottom: 24px; }
.pzd-rng__factors-title { font-size: 1em; font-weight: 700; margin: 0 0 16px 0; padding: 0; border: none; color: var(--pzd-text); }
.pzd-rng__factors-grid { display: grid; grid-template-columns: 1fr; gap: 8px; }
.pzd-rng__factor-row { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; border-radius: var(--pzd-radius-sm); background: var(--pzd-white); font-size: 0.88em; }
.pzd-rng__factor-name { font-weight: 600; color: var(--pzd-text); }
.pzd-rng__factor-impact { font-weight: 700; white-space: nowrap; }
.pzd-rng__factor-impact--positive { color: var(--pzd-green); }
.pzd-rng__factor-impact--negative { color: var(--pzd-red); }
.pzd-rng__factor-impact--neutral { color: var(--pzd-text-light); }

/* Info box */
.pzd-rng__info-box { background: var(--pzd-yellow-light); border: 1px solid var(--pzd-yellow); border-radius: var(--pzd-radius-sm); padding: 18px 22px; font-size: 0.88em; color: var(--pzd-text); margin-bottom: 28px; line-height: 1.6; }

/* Related */
.pzd-rng__related { margin-top: 8px; }
.pzd-rng__related-title { font-size: 1.15em; font-weight: 700; color: var(--pzd-blue); margin: 0 0 16px 0; padding: 0; border: none; }
.pzd-rng__related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.pzd-rng__related-card { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--pzd-white); border: 1px solid var(--pzd-border); border-radius: var(--pzd-radius-sm); text-decoration: none; color: var(--pzd-text); font-size: 0.88em; font-weight: 500; transition: all var(--pzd-transition); line-height: 1.35; min-height: 60px; }
.pzd-rng__related-card:hover { border-color: var(--pzd-blue); background: var(--pzd-blue-light); transform: translateY(-1px); box-shadow: var(--pzd-shadow); text-decoration: none; color: var(--pzd-blue); }
.pzd-rng__related-icon { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; min-width: 36px; background: var(--pzd-blue-light); border-radius: 8px; color: var(--pzd-blue); }
.pzd-rng__related-text { flex: 1; }

/* Responsive */
@media (max-width: 640px) {
    .pzd-rng__hero { padding: 28px 20px; }
    .pzd-rng__hero-title { font-size: 1.25em; }
    .pzd-rng__section { padding: 20px 16px; }
    .pzd-rng__assist-grid { grid-template-columns: repeat(2, 1fr); }
    .pzd-rng__assist-desc { display: none; }
    .pzd-rng__presets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
    #pzd-rng .pzd-rng__preset-btn { min-width: 0 !important; font-size: 0.82em !important; }
    .pzd-rng__option-grid--4 { flex-wrap: wrap; }
    #pzd-rng .pzd-rng__option-grid--4 .pzd-rng__option-btn { min-width: calc(50% - 4px) !important; }
    .pzd-rng__stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .pzd-rng__stat-card { padding: 16px 12px; }
    .pzd-rng__stat-value { font-size: 1.1em; }
    .pzd-rng__stat-label { font-size: 0.75em; }
    .pzd-rng__related-grid { grid-template-columns: 1fr; }
    .pzd-rng__result-hero { padding: 28px 20px; }
    .pzd-rng__result-hero-value { font-size: 2.4em; }
    #pzd-rng .pzd-rng__calculate-btn { width: 100% !important; justify-content: center !important; }
    .pzd-rng__range-sublabels { font-size: 0.65em; }
}
@media (max-width: 380px) {
    .pzd-rng__presets { grid-template-columns: repeat(2, 1fr); }
    .pzd-rng__assist-grid { grid-template-columns: 1fr 1fr; }
    .pzd-rng__stats-grid { grid-template-columns: 1fr; }
    .pzd-rng__result-hero-value { font-size: 2em; }
}