/* ============================================================
   КРИСТАЛЛ — Страница реферальной программы
   ============================================================ */

/* ---- HERO ---- */
.rf-hero {
  position: relative;
  padding: 48px 48px 48px;
  overflow: hidden;
}
.rf-hero-crystal {
  position: absolute;
  top: -120px; right: -160px;
  width: 760px; height: 760px;
  opacity: 0.55;
  z-index: 0;
  pointer-events: none;
}
.rf-hero-inner {
  position: relative; z-index: 2;
  max-width: 1320px; margin: 0 auto;
}
.rf-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.rf-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 64px;
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 18px 0 22px;
  text-wrap: balance;
  color: var(--c-ink);
}
.rf-hero-copy h1 .rf-h-accent {
  background: linear-gradient(120deg, #1B2185 0%, #3A40B8 60%, #4046C2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.rf-hero-copy p {
  font-size: 18px; line-height: 1.5;
  color: var(--c-mute);
  max-width: 50ch;
  margin: 0 0 28px;
}

/* Big bonus visual */
.rf-bonus-card {
  position: relative;
  background: linear-gradient(155deg, #1B2185 0%, #050828 100%);
  color: var(--c-paper);
  border-radius: 28px;
  padding: 40px;
  overflow: hidden;
  box-shadow: var(--c-shadow-big);
  isolation: isolate;
}
.rf-bonus-bg {
  position: absolute; right: -160px; bottom: -160px;
  width: 440px; height: 440px;
  opacity: 0.08; color: var(--c-platinum);
  pointer-events: none;
  z-index: 0;
}
.rf-bonus-eyebrow {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--c-platinum);
  position: relative; z-index: 1;
}
.rf-bonus-pct {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 144px;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 14px 0 14px;
  color: var(--c-paper);
  position: relative; z-index: 1;
  display: inline-flex;
  align-items: flex-start;
  font-feature-settings: "tnum" 1;
  padding-right: 4px;
}
.rf-bonus-pct small {
  font-size: 56px;
  font-weight: 800;
  color: #FFFFFF;
  margin-left: 8px;
  margin-top: 18px;
  line-height: 1;
  display: inline-block;
}
.rf-bonus-of {
  font-size: 16px; line-height: 1.5;
  color: rgba(201, 205, 227, 0.85);
  margin: 0;
  position: relative; z-index: 1;
}
.rf-bonus-foot {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(201, 205, 227, 0.18);
  display: flex; justify-content: space-between;
  gap: 16px;
  position: relative; z-index: 1;
}
.rf-bonus-foot > div .rf-bf-k {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-platinum); opacity: 0.8;
  margin-bottom: 6px;
}
.rf-bonus-foot > div .rf-bf-v {
  font-family: var(--font-display); font-weight: 700;
  font-size: 15px;
  color: var(--c-paper);
}

/* ---- RULES CARDS ---- */
.rf-rules {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.rf-rule {
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  border-radius: 18px;
  padding: 24px 26px 26px;
  display: flex; flex-direction: column;
  gap: 10px;
  transition: all 200ms cubic-bezier(.2,0,0,1);
}
.rf-rule:hover {
  transform: translateY(-2px);
  box-shadow: var(--c-shadow-soft);
  border-color: var(--c-blue-l);
}
.rf-rule-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--c-paper-2);
  color: var(--c-blue);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
}
.rf-rule-icon svg { width: 22px; height: 22px; }
.rf-rule h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.005em;
  margin: 0;
  color: var(--c-ink);
}
.rf-rule p {
  font-size: 14px; line-height: 1.5;
  color: var(--c-mute);
  margin: 0;
}

/* ---- CALCULATOR ---- */
.rf-calc-wrap {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  border-radius: 28px;
  padding: 48px;
  box-shadow: var(--c-shadow-soft);
  overflow: hidden;
  position: relative;
}
.rf-calc-bg {
  position: absolute; right: -100px; bottom: -100px;
  width: 460px; height: 460px;
  opacity: 0.04; color: var(--c-blue);
  pointer-events: none;
}
.rf-calc-input { position: relative; z-index: 1; }
.rf-calc-input h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 32px;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 14px 0 28px;
  color: var(--c-ink);
}
.rf-cf { margin-bottom: 24px; }
.rf-cf label {
  display: block;
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--c-mute-2); margin-bottom: 10px;
}
.rf-cf-row {
  display: flex; align-items: baseline; gap: 8px;
  padding: 12px 0;
  border-bottom: 2px solid var(--c-blue);
}
.rf-cf-row input {
  background: transparent; color: var(--c-ink);
  border: none; outline: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 42px; letter-spacing: -0.02em;
  flex: 1; min-width: 0;
  font-feature-settings: "tnum" 1;
}
.rf-cf-unit {
  font-family: var(--font-display);
  font-weight: 800; font-size: 30px;
  color: var(--c-blue);
}
.rf-cf input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  margin-top: 16px;
  background: var(--c-paper-3);
  border-radius: 999px; outline: none;
}
.rf-cf input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px;
  background: var(--c-blue);
  border: 4px solid #FFFFFF;
  border-radius: 999px; cursor: grab;
  box-shadow: var(--c-shadow-soft);
}
.rf-cf input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px;
  background: var(--c-blue);
  border: 4px solid #FFFFFF;
  border-radius: 999px; cursor: grab;
}
.rf-cf-ticks {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px; color: var(--c-mute-2);
  margin-top: 8px;
}

.rf-calc-out {
  background: linear-gradient(155deg, #1B2185 0%, #050828 100%);
  color: var(--c-paper);
  border-radius: 22px;
  padding: 36px 40px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}
.rf-calc-out-bg {
  position: absolute; right: -80px; bottom: -80px;
  width: 320px; height: 320px;
  opacity: 0.10; color: var(--c-platinum);
  pointer-events: none;
}
.rf-co-eyebrow {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--c-platinum);
  position: relative; z-index: 1;
}
.rf-co-amount {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 84px;
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 14px 0 8px;
  background: linear-gradient(180deg, #FFFFFF 0%, #C9CDE3 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  position: relative; z-index: 1;
  font-feature-settings: "tnum" 1;
}
.rf-co-sub {
  font-size: 14px;
  color: rgba(201, 205, 227, 0.85);
  margin: 0;
  position: relative; z-index: 1;
}
.rf-co-table {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(201, 205, 227, 0.18);
  position: relative; z-index: 1;
}
.rf-co-th {
  display: grid; grid-template-columns: 1.2fr 1fr;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-platinum); opacity: 0.7;
  margin-bottom: 10px;
}
.rf-co-tr {
  display: grid; grid-template-columns: 1.2fr 1fr;
  padding: 9px 0;
  border-bottom: 1px solid rgba(201, 205, 227, 0.10);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-paper);
  font-feature-settings: "tnum" 1;
}
.rf-co-tr:last-child { border-bottom: none; }
.rf-co-tr .rf-tr-bonus {
  text-align: right;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--c-platinum);
}
.rf-co-note {
  margin-top: 18px;
  font-size: 12px; color: rgba(201, 205, 227, 0.7);
  line-height: 1.5;
}

/* ---- HOW IT WORKS ---- */
.rf-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.rf-step {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  border-radius: 22px;
  padding: 32px 32px 36px;
  overflow: hidden;
}
.rf-step-num {
  position: absolute; top: 24px; right: 24px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 88px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--c-paper-3);
  z-index: 0;
  font-feature-settings: "tnum" 1;
}
.rf-step-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--c-blue);
  color: var(--c-platinum);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  position: relative; z-index: 1;
}
.rf-step-icon svg { width: 22px; height: 22px; }
.rf-step h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  color: var(--c-ink);
  position: relative; z-index: 1;
  max-width: 16ch;
}
.rf-step p {
  font-size: 14px; line-height: 1.55;
  color: var(--c-mute);
  margin: 0;
  position: relative; z-index: 1;
  max-width: 30ch;
}

.rf-note {
  margin-top: 28px;
  background: var(--c-paper-2);
  border: 1px solid var(--c-line);
  border-radius: 18px;
  padding: 22px 26px;
  display: flex; align-items: flex-start; gap: 16px;
}
.rf-note-icon {
  width: 40px; height: 40px;
  border-radius: 999px;
  background: var(--c-platinum);
  color: var(--c-blue-d);
  display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 40px;
}
.rf-note h4 {
  font-family: var(--font-display); font-weight: 700;
  font-size: 16px; margin: 0 0 4px; color: var(--c-ink);
  letter-spacing: -0.005em;
}
.rf-note p { margin: 0; color: var(--c-mute); font-size: 14px; line-height: 1.5; }

/* ---- SHARE BLOCK ---- */
.rf-share-wrap {
  position: relative;
  background: linear-gradient(155deg, #1B2185 0%, #050828 100%);
  color: var(--c-paper);
  border-radius: 32px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  box-shadow: var(--c-shadow-big);
  max-width: 100%;
  min-width: 0;
}
.rf-share-bg {
  position: absolute; left: -120px; top: -100px;
  width: 540px; height: 540px;
  opacity: 0.08; color: var(--c-platinum);
  pointer-events: none;
}
.rf-share-copy { position: relative; z-index: 1; }
.rf-share-copy h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 44px;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 14px 0 18px;
  color: var(--c-paper);
  text-wrap: balance;
}
.rf-share-copy p {
  font-size: 16px; line-height: 1.55;
  color: rgba(201, 205, 227, 0.85);
  max-width: 42ch;
  margin: 0;
}

.rf-share-panel {
  position: relative; z-index: 1;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(201, 205, 227, 0.18);
  border-radius: 22px;
  padding: 32px;
  min-width: 0;
  overflow: hidden;
}
.rf-share-buttons {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}
.rf-share-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(201, 205, 227, 0.22);
  border-radius: 14px;
  color: var(--c-paper);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 200ms cubic-bezier(.2,0,0,1);
}
.rf-share-btn:hover {
  background: var(--c-platinum);
  border-color: var(--c-platinum);
  color: var(--c-blue-d);
}
.rf-share-btn-icon {
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
}
.rf-share-btn-icon svg { width: 22px; height: 22px; }

.rf-copy-row {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  background: rgba(5, 8, 40, 0.55);
  border: 1px solid rgba(201, 205, 227, 0.18);
  border-radius: 12px;
  margin-top: 12px;
  min-width: 0;
  max-width: 100%;
}
.rf-copy-row .rf-copy-text {
  flex: 1 1 0; min-width: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(201, 205, 227, 0.85);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rf-copy-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  background: var(--c-platinum);
  color: var(--c-blue-d);
  border: none;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
  transition: all 200ms cubic-bezier(.2,0,0,1);
}
.rf-copy-btn:hover { background: #FFFFFF; }
.rf-copy-btn svg { width: 13px; height: 13px; }
.rf-copy-btn.rf-copied { background: #98E0C5; color: var(--c-blue-d); }

/* ---- RESPONSIVE ---- */
@media (max-width: 1180px) {
  .rf-hero { padding: 36px 32px; }
  .rf-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .rf-hero-copy h1 { font-size: 48px; }
  .rf-bonus-pct { font-size: 120px; }
  .rf-bonus-pct small { font-size: 48px; }
  .rf-hero-crystal { width: 500px; height: 500px; right: -260px; opacity: 0.4; }

  .rf-rules { grid-template-columns: 1fr 1fr; }
  .rf-calc-wrap { grid-template-columns: 1fr; padding: 36px; gap: 32px; }
  .rf-co-amount { font-size: 60px; }
  .rf-steps { grid-template-columns: 1fr; }
  .rf-step { padding: 28px; }
  .rf-share-wrap { grid-template-columns: 1fr; padding: 40px; gap: 32px; }
  .rf-share-copy h2 { font-size: 32px; }
}

@media (max-width: 720px) {
  /* ---- Hero ---- */
  .rf-hero { padding: 18px 16px 32px; border-radius: 22px; margin: 12px; }
  .rf-hero-copy h1 { font-size: 28px; line-height: 1.05; }
  .rf-hero-copy p { font-size: 14px; line-height: 1.5; }
  .rf-hero-crystal { width: 360px; height: 360px; right: -200px; opacity: 0.25; }

  /* Bonus card */
  .rf-bonus-card { padding: 24px 20px; border-radius: 20px; }
  .rf-bonus-eyebrow { font-size: 10px; letter-spacing: 0.14em; }
  .rf-bonus-pct { font-size: 76px; line-height: 0.9; }
  .rf-bonus-pct small { font-size: 28px; margin-top: 4px; }
  .rf-bonus-of { font-size: 13px; }
  .rf-bonus-foot {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px 24px;
  }
  .rf-bonus-foot > div .rf-bf-k { font-size: 10px; letter-spacing: 0.12em; }
  .rf-bonus-foot > div .rf-bf-v { font-size: 14px; }

  /* ---- Rules ---- */
  .rf-rules { grid-template-columns: 1fr; gap: 12px; }
  .rf-rule { padding: 22px 20px; border-radius: 18px; }
  .rf-rule h3 { font-size: 17px; }
  .rf-rule p { font-size: 13px; }
  .rf-rule-icon { width: 40px; height: 40px; border-radius: 12px; }
  .rf-rule-icon svg { width: 18px; height: 18px; }

  /* ---- Calculator ---- */
  .rf-calc-wrap {
    padding: 28px 20px;
    border-radius: 22px;
    gap: 24px;
  }
  .rf-calc-bg { width: 360px; height: 360px; opacity: 0.05; }
  .rf-calc-input h2 { font-size: 22px; margin-bottom: 18px; max-width: none; }
  .rf-cf { margin-bottom: 18px; }
  .rf-cf label { font-size: 10px; letter-spacing: 0.14em; margin-bottom: 6px; }
  .rf-cf-row { padding: 10px 0; }
  .rf-cf-row input { font-size: 26px; }
  .rf-cf-unit { font-size: 20px; }
  .rf-cf-ticks { font-size: 10px; }
  .rf-calc-out {
    padding: 22px 20px;
    border-radius: 18px;
  }
  .rf-calc-out-bg { width: 280px; height: 280px; opacity: 0.04; }
  .rf-co-eyebrow { font-size: 10px; letter-spacing: 0.14em; margin-bottom: 8px; }
  .rf-co-amount { font-size: 40px; line-height: 1; }
  .rf-co-sub { font-size: 12px; margin-top: 10px; }
  .rf-co-table { margin-top: 18px; }
  .rf-co-th { font-size: 10px; letter-spacing: 0.12em; padding-bottom: 8px; }
  .rf-co-tr { font-size: 12px; padding: 8px 0; }
  .rf-co-tr .rf-tr-bonus { font-size: 13px; }
  .rf-co-note { font-size: 11px; line-height: 1.5; margin-top: 12px; padding: 10px 12px; }

  /* ---- Steps — horizontal scroll ---- */
  .rf-steps {
    display: flex !important;
    grid-template-columns: none !important;
    flex-wrap: nowrap;
    gap: 12px;
    overflow-x: auto;
    overflow-y: visible;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 4px 16px 14px;
    margin: 0 -16px;
  }
  .rf-steps::-webkit-scrollbar { display: none; }
  .rf-steps > .rf-step {
    flex: 0 0 78%;
    max-width: 78%;
    scroll-snap-align: start;
    padding: 22px 20px;
    border-radius: 18px;
  }
  .rf-step-num { font-size: 12px; }
  .rf-step-icon { width: 40px; height: 40px; border-radius: 12px; }
  .rf-step-icon svg { width: 18px; height: 18px; }
  .rf-step h3 { font-size: 17px; }
  .rf-step p { font-size: 13px; }

  /* Note block under steps */
  .rf-note {
    padding: 16px 18px;
    border-radius: 14px;
    flex-direction: column;
    gap: 10px;
  }
  .rf-note-icon { width: 36px; height: 36px; flex: 0 0 36px; border-radius: 10px; }
  .rf-note h4 { font-size: 15px; }
  .rf-note p { font-size: 13px; }

  /* ---- Share block ---- */
  .rf-share-wrap {
    padding: 28px 20px;
    border-radius: 22px;
    gap: 24px;
  }
  .rf-share-bg { width: 320px; height: 320px; opacity: 0.05; }
  .rf-share-copy h2 { font-size: 24px; line-height: 1.1; }
  .rf-share-copy p { font-size: 14px; max-width: none; }
  .rf-share-panel { padding: 20px 18px; border-radius: 18px; }
  .rf-share-buttons {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .rf-share-btn { padding: 14px 12px; font-size: 12px; border-radius: 14px; gap: 8px; }
  .rf-share-btn-icon { width: 36px; height: 36px; flex: 0 0 36px; border-radius: 10px; }
  .rf-share-btn-icon svg { width: 18px; height: 18px; }
  .rf-copy-row {
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    border-radius: 14px;
  }
  .rf-copy-row .rf-copy-text { font-size: 12px; width: 100%; }
  .rf-copy-btn { width: 100%; justify-content: center; }
}

@media (max-width: 380px) {
  .rf-hero-copy h1 { font-size: 24px; }
  .rf-bonus-pct { font-size: 64px; }
  .rf-bonus-pct small { font-size: 24px; }
  .rf-co-amount { font-size: 34px; }
  .rf-steps > .rf-step { flex-basis: 86%; max-width: 86%; }
  .rf-share-buttons { grid-template-columns: 1fr; }
}