/* =========================================================
   Casper — referral program (standardni Casper brending)
   + premium paket (crno-zlatna tema, samo za vodič)
   ========================================================= */
:root {
  --gold: #e9c97f;
  --gold-hi: #fff1c9;
  --gold-soft: rgba(233, 201, 127, 0.12);
  --gold-line: rgba(233, 201, 127, 0.3);
}
/* zlatno dugme — samo za premium vodič */
.btn-gold {
  position: relative; overflow: hidden; isolation: isolate; color: #1a1206 !important; border: 0; font-weight: 700;
  background: linear-gradient(180deg, #fff3cf 0%, #f0d38e 38%, #d7ad5c 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 -2px 0 rgba(120, 80, 20, 0.35) inset, 0 12px 40px -10px rgba(233, 201, 127, 0.55);
}
.btn-gold::after { content: ""; position: absolute; inset: -40% auto -40% -60%; width: 40%; z-index: -1; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.85), transparent); transform: skewX(-20deg); animation: goldSweep 3.8s ease-in-out infinite; }
@keyframes goldSweep { 0%, 60% { left: -60%; } 100% { left: 130%; } }
.btn-gold:hover { filter: brightness(1.05); transform: translateY(-1px); }

/* ---------- Stranica programa ---------- */
.ref-page { background: radial-gradient(1200px 700px at 80% -10%, rgba(108, 200, 240, 0.10), transparent 60%), var(--bg); }
.ref-hero { width: min(1100px, 100%); margin: 0 auto; padding: 150px 24px 60px; text-align: center; }
.ref-hero h1 { font: 700 clamp(44px, 7vw, 92px)/0.98 var(--display); margin: 10px 0 22px; letter-spacing: -0.04em; }
.ref-hero .lead { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0 auto; }
.ref-hero .lead b { color: var(--text); }
.ref-hero .ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.ref-sec { width: min(1100px, 100%); margin: 0 auto; padding: 80px 24px; }
.ref-sec h2 { font: 700 clamp(32px, 4.2vw, 52px)/1.05 var(--display); margin: 0 0 14px; letter-spacing: -0.03em; text-align: center; }
.ref-sec .center { text-align: center; }
.ref-sec p.sub { color: var(--muted); text-align: center; max-width: 620px; margin: 0 auto 46px; }

.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.duo .side { padding: 32px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.duo .side .who { font-size: 12px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--sky); }
.duo .side .big { font: 700 64px/1 var(--display); letter-spacing: -0.04em; margin: 14px 0 10px; }
.duo .side p { color: var(--muted); margin: 0; }

.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.tier { position: relative; padding: 30px 26px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); transition: transform 0.4s var(--ease), border-color 0.4s; }
.tier:hover { transform: translateY(-4px); border-color: var(--border-2); }
.tier.top { border-color: rgba(108, 200, 240, 0.5); box-shadow: 0 30px 80px -40px rgba(108, 200, 240, 0.5); }
.tier .lvl { font-size: 12px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--sky); }
.tier .pct { font: 700 64px/1 var(--display); letter-spacing: -0.04em; margin: 14px 0 8px; }
.tier .when { color: var(--muted); font-size: 14px; }

.steps3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.step3 { padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.step3 .n { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; font: 700 17px var(--display); color: #05070a; background: linear-gradient(180deg, #fff, #dff3fc); margin-bottom: 16px; }
.step3 b { display: block; margin-bottom: 6px; }
.step3 span { color: var(--muted); font-size: 14.5px; }

.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 40px; border-radius: 28px; border: 1px solid var(--border-2); background: radial-gradient(90% 120% at 100% 0%, rgba(108, 200, 240, 0.10), transparent 60%), var(--bg-2); }
.calc label { display: block; color: var(--muted); font-size: 14px; margin: 14px 0 6px; }
.calc .val { font: 700 34px/1 var(--display); letter-spacing: -0.03em; }
.calc input[type="range"] { width: 100%; accent-color: var(--sky); }
.calc .out { text-align: center; }
.calc .out .money { font: 700 clamp(60px, 8vw, 88px)/1 var(--display); letter-spacing: -0.04em; }
.calc .out small { display: block; color: var(--muted); margin-top: 10px; }

.rules { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.rule { padding: 18px 20px; border-radius: 16px; border: 1px solid var(--border); background: var(--surface); font-size: 14.5px; color: var(--muted); }
.rule b { color: var(--text); }
.rule a { color: var(--sky); }

/* ---------- Nalog ---------- */
.acct-card.ref { border-color: rgba(108, 200, 240, 0.28); background: radial-gradient(90% 120% at 100% 0%, rgba(108, 200, 240, 0.08), transparent 60%), var(--surface); }
.acct-card.gold { border-color: var(--gold-line); background: radial-gradient(90% 120% at 100% 0%, rgba(233, 201, 127, 0.12), transparent 60%), linear-gradient(160deg, #15110b, #0b0a08 60%); }
.acct-card.gold h3 { color: var(--gold); }
.ref-link { display: flex; gap: 8px; margin: 12px 0; }
.ref-link .copy-row { flex: 1; min-width: 0; }
.ref-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 14px 0; }
.ref-kpis div { padding: 14px; border-radius: 14px; background: rgba(0, 0, 0, 0.25); border: 1px solid var(--border); }
.ref-kpis b { display: block; font: 700 24px/1.15 var(--display); letter-spacing: -0.02em; }
.ref-kpis span { font-size: 12px; color: var(--muted); }
.tier-bar { height: 8px; border-radius: 6px; background: rgba(255, 255, 255, 0.06); overflow: hidden; margin: 8px 0 4px; }
.tier-bar i { display: block; height: 100%; border-radius: 6px; background: linear-gradient(90deg, var(--sky-deep), var(--ice)); }
.ref-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.ref-table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin-top: 12px; }
.ref-table td, .ref-table th { padding: 9px 8px; border-bottom: 1px solid var(--border); text-align: left; }
.ref-table th { color: var(--dim); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.08em; }
.payout-form { display: grid; grid-template-columns: 160px 1fr auto; gap: 8px; margin-top: 12px; }
.payout-form select, .payout-form input { min-width: 0; }

/* ---------- Checkout: preporuka ---------- */
.co-refline { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin: 10px 0 2px; padding: 12px 14px; border-radius: 14px; border: 1px solid rgba(108, 200, 240, 0.35); background: rgba(108, 200, 240, 0.07); font-size: 13.5px; }
.co-refline b { color: var(--ice); }
/* polje za kod: diskretan red, a kad se otvori — jedno polje sa dugmetom unutra */
.co-refask, .co-refask[open] { margin-top: 12px; padding: 0; border: 0; border-radius: 0; background: none; }
.co-refask summary { display: inline-flex; justify-content: flex-start; gap: 8px; padding: 4px 0; font-size: 13.5px; font-weight: 500; color: var(--muted); transition: color 0.2s; }
.co-refask summary:hover { color: var(--text); }
.co-refask summary::before { content: ""; width: 16px; height: 16px; flex: none; background: var(--sky); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='8' width='18' height='4' rx='1'/%3E%3Cpath d='M12 8v13M19 12v7a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2v-7M7.5 8a2.5 2.5 0 0 1 0-5C10 3 12 8 12 8s2-5 4.5-5a2.5 2.5 0 0 1 0 5'/%3E%3C/svg%3E") center / contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='8' width='18' height='4' rx='1'/%3E%3Cpath d='M12 8v13M19 12v7a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2v-7M7.5 8a2.5 2.5 0 0 1 0-5C10 3 12 8 12 8s2-5 4.5-5a2.5 2.5 0 0 1 0 5'/%3E%3C/svg%3E") center / contain no-repeat; }
.co-refask summary::after { content: "›"; font-size: 17px; line-height: 1; color: var(--dim); transform: rotate(90deg); transition: transform 0.3s var(--ease); }
.co-refask[open] summary::after { transform: rotate(-90deg); }
.co-ref { display: flex; align-items: center; gap: 8px; margin-top: 8px; padding: 5px 5px 5px 16px; border-radius: 14px; border: 1px solid var(--border-2); background: rgba(0, 0, 0, 0.3); transition: border-color 0.25s, box-shadow 0.25s; animation: fadeIn 0.4s var(--ease); }
.co-ref:focus-within { border-color: rgba(108, 200, 240, 0.6); box-shadow: 0 0 0 3px rgba(108, 200, 240, 0.15); }
.co-ref .co-input { flex: 1; min-width: 0; height: auto; padding: 8px 0; border: 0; border-radius: 0; background: none; box-shadow: none; outline: none; text-transform: uppercase; font: 600 14px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.14em; color: var(--text); }
.co-ref .co-input::placeholder { font-family: var(--font); font-weight: 500; letter-spacing: 0; text-transform: none; color: var(--dim); }
.co-ref .btn { padding: 10px 18px; border-radius: 10px; font-size: 13.5px; }
.co-total { display: flex; justify-content: space-between; margin: 14px 0 4px; padding-top: 12px; border-top: 1px solid var(--border); font-weight: 600; }
.co-total b { font: 700 18px var(--display); }

/* ---------- Pozivnica (posle ?ref=) ---------- */
.invite-bar { position: fixed; left: 50%; top: 86px; z-index: 70; transform: translate(-50%, -30px); opacity: 0; transition: all 0.6s var(--ease); display: flex; gap: 12px; align-items: center; padding: 10px 12px 10px 18px; border-radius: 999px; background: rgba(12, 14, 18, 0.9); border: 1px solid rgba(108, 200, 240, 0.35); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 20px 60px -20px rgba(108, 200, 240, 0.4); font-size: 14px; max-width: calc(100vw - 24px); }
.invite-bar.show { transform: translate(-50%, 0); opacity: 1; }
.invite-bar b { color: var(--ice); }
.invite-bar button.x { border: 0; background: none; color: var(--dim); font-size: 18px; cursor: pointer; padding: 0 6px; }

@media (max-width: 960px) {
  .calc, .duo { grid-template-columns: 1fr; padding: 28px; }
  .tiers, .steps3 { grid-template-columns: 1fr; }
  .ref-kpis { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .rules { grid-template-columns: 1fr; }
  .ref-sec { padding: 64px 16px; }
  .ref-hero { padding: 110px 16px 30px; }
  .payout-form { grid-template-columns: 1fr; }
  .invite-bar { top: 74px; left: 12px; right: 12px; max-width: none; transform: translateY(-30px); border-radius: 18px; font-size: 13px; padding: 10px 10px 10px 14px; }
  .invite-bar.show { transform: none; }
  .invite-bar span { flex: 1; min-width: 0; }
}

/* ---------- Premium paket u plaćanju ---------- */
.gd { margin: 2px 0 14px; }
.gd-card {
  position: relative; display: block; width: 100%; text-align: left; cursor: pointer; overflow: hidden; isolation: isolate;
  padding: 16px 16px 15px; border-radius: 18px; border: 1px solid rgba(233, 201, 127, 0.32); color: var(--text); font: inherit;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(233, 201, 127, 0.20), transparent 55%),
    radial-gradient(80% 120% at 0% 100%, rgba(233, 201, 127, 0.08), transparent 60%),
    linear-gradient(160deg, #17130c, #0b0a08 60%);
  box-shadow: inset 0 1px 0 rgba(255, 241, 201, 0.10), 0 18px 40px -24px rgba(233, 201, 127, 0.45);
  transition: transform 0.35s var(--ease), box-shadow 0.35s, border-color 0.35s;
}
.gd-card:hover { transform: translateY(-2px); border-color: rgba(233, 201, 127, 0.55); }
.gd-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1.5px; z-index: 0; opacity: 0; transition: opacity 0.4s;
  background: conic-gradient(from var(--gd-a, 0deg), transparent 0 50%, #fff1c9 62%, #c99a47 72%, transparent 84%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  animation: gdSpin 3.5s linear infinite;
}
@property --gd-a { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
@keyframes gdSpin { to { --gd-a: 360deg; } }
.gd-card.on { border-color: transparent; box-shadow: inset 0 1px 0 rgba(255, 241, 201, 0.14), 0 22px 60px -24px rgba(233, 201, 127, 0.75); }
.gd-card.on::before { opacity: 1; }
.gd-shine { position: absolute; inset: -40% auto -40% -50%; width: 35%; z-index: 0; pointer-events: none; background: linear-gradient(100deg, transparent, rgba(255, 241, 201, 0.16), transparent); transform: skewX(-20deg); animation: goldSweep 4.5s ease-in-out infinite; }
.gd-badge { position: relative; z-index: 1; display: inline-block; margin-bottom: 10px; padding: 3px 10px; border-radius: 999px; font: 700 10px/1.4 var(--font); letter-spacing: 0.2em; text-transform: uppercase; color: #1a1206; background: linear-gradient(180deg, #fff1c9, #d7ad5c); }
.gd-main { position: relative; z-index: 1; display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding-right: 30px; }
.gd-ico { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; color: var(--gold); background: linear-gradient(160deg, rgba(233, 201, 127, 0.22), rgba(233, 201, 127, 0.05)); box-shadow: inset 0 0 0 1px rgba(233, 201, 127, 0.35); }
.gd-ico svg { width: 22px; height: 22px; }
.gd-txt b { display: block; font: 600 15px/1.25 var(--display); color: #fff6dd; }
.gd-txt small { display: block; margin-top: 3px; color: #a89f8b; font-size: 12px; line-height: 1.4; }
.gd-price { text-align: right; }
.gd-price b { display: block; font: 700 26px/1 var(--display); letter-spacing: -0.02em; background: linear-gradient(180deg, #fff1c9, #d7ad5c); -webkit-background-clip: text; background-clip: text; color: transparent; }
.gd-price small { color: #8f8775; font-size: 11px; }
.gd-check { position: absolute; z-index: 1; top: 14px; right: 14px; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; border: 1.5px solid rgba(233, 201, 127, 0.45); color: transparent; transition: all 0.3s var(--ease); }
.gd-check svg { width: 13px; height: 13px; }
.gd-card.on .gd-check { background: linear-gradient(180deg, #fff1c9, #d7ad5c); border-color: transparent; color: #1a1206; box-shadow: 0 0 16px rgba(233, 201, 127, 0.6); }
.gd-mode { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin-top: 10px; padding: 4px; border-radius: 14px; background: rgba(233, 201, 127, 0.06); border: 1px solid rgba(233, 201, 127, 0.22); }
.gd-mode button { border: 0; border-radius: 10px; padding: 9px 10px; background: none; color: #b9a578; font: 600 13px var(--font); cursor: pointer; transition: background 0.25s, color 0.25s; }
.gd-mode button:hover { color: var(--gold-hi); }
.gd-mode button.on { color: #1a1206; background: linear-gradient(180deg, #fff1c9, #d7ad5c); box-shadow: 0 6px 18px -8px rgba(233, 201, 127, 0.7); }
@media (max-width: 600px) {
  .gd-main { grid-template-columns: 38px minmax(0, 1fr); padding-right: 26px; }
  .gd-ico { width: 38px; height: 38px; }
  .gd-price { grid-column: 2; text-align: left; display: flex; align-items: baseline; gap: 6px; }
  .gd-price b { font-size: 22px; }
}

/* ---------- Slot animacija (premium paket) ---------- */
.modal-card.slotting { overflow: hidden; }
.slot-ov {
  position: absolute; inset: 0; z-index: 20; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; padding: 26px 22px;
  border-radius: inherit; overflow: hidden;
  background: radial-gradient(90% 60% at 50% 35%, rgba(233, 201, 127, 0.20), transparent 70%), radial-gradient(60% 50% at 50% 100%, rgba(233, 201, 127, 0.10), transparent 70%), #08070a;
  animation: slotIn 0.45s var(--ease) both;
}
.slot-ov.out { animation: slotOut 0.45s var(--ease) both; }
@keyframes slotIn { from { opacity: 0; transform: scale(1.04); } }
@keyframes slotOut { to { opacity: 0; transform: scale(0.97); } }
.slot-glow { position: absolute; width: 140%; aspect-ratio: 1; top: -30%; left: -20%; background: conic-gradient(from 0deg, transparent, rgba(233, 201, 127, 0.10), transparent 30%, rgba(233, 201, 127, 0.08), transparent 60%); animation: spin 14s linear infinite; pointer-events: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.slot-top { position: relative; text-align: center; font: 600 11.5px var(--font); letter-spacing: 0.26em; text-transform: uppercase; color: var(--gold); }
.slot-machine {
  position: relative; padding: 12px; border-radius: 26px; width: min(380px, 100%);
  background: linear-gradient(180deg, #2a2216, #0f0c08); box-shadow: 0 0 0 1px rgba(233, 201, 127, 0.45), inset 0 1px 0 rgba(255, 241, 201, 0.25), 0 30px 80px -30px rgba(233, 201, 127, 0.6);
}
.slot-machine::before, .slot-machine::after { content: ""; position: absolute; top: 50%; width: 8px; height: 8px; margin-top: -4px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #fff1c9, #a77a30); box-shadow: 0 0 10px rgba(233, 201, 127, 0.7); }
.slot-machine::before { left: 3px; } .slot-machine::after { right: 3px; }
.slot-window { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; height: 150px; border-radius: 18px; overflow: hidden; background: #050405; box-shadow: inset 0 0 0 1px rgba(233, 201, 127, 0.18); }
.slot-reel { position: relative; overflow: hidden; border-radius: 14px; background: linear-gradient(180deg, #0c0a08, #16120c 50%, #0c0a08);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 26%, #000 74%, transparent); mask-image: linear-gradient(180deg, transparent, #000 26%, #000 74%, transparent); }
.slot-strip { padding-top: 27px; will-change: transform; }
.slot-cell { height: 96px; display: grid; place-items: center; font-size: 40px; filter: saturate(0.85); }
.slot-cell img { width: 48px; height: 48px; object-fit: contain; filter: drop-shadow(0 0 8px rgba(108, 200, 240, 0.4)); }
.slot-cell.sc { color: var(--gold); }
.slot-cell.sc svg { width: 54px; height: 54px; filter: drop-shadow(0 0 10px rgba(233, 201, 127, 0.55)); }
.slot-cell.hit svg { animation: hitPulse 1.1s ease-in-out infinite; color: #fff1c9; filter: drop-shadow(0 0 18px rgba(255, 220, 140, 0.95)); }
@keyframes hitPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.12); } }
.slot-reel.landed { box-shadow: inset 0 0 0 1.5px rgba(233, 201, 127, 0.75), inset 0 0 30px rgba(233, 201, 127, 0.25); }
.slot-line { position: absolute; left: 6px; right: 6px; top: 50%; height: 2px; margin-top: -1px; background: linear-gradient(90deg, transparent, rgba(255, 241, 201, 0.85), transparent); box-shadow: 0 0 12px rgba(233, 201, 127, 0.8); pointer-events: none; }
.slot-msg { position: relative; height: 34px; font: 700 28px/1 var(--display); letter-spacing: -0.01em; opacity: 0; transform: scale(0.6); }
.slot-msg b { font-weight: 700; background: linear-gradient(100deg, #b98c3f, #fff3cf 45%, #e2bd6a 60%, #fff1c9); -webkit-background-clip: text; background-clip: text; color: transparent; }
.slot-msg.show { animation: msgPop 0.6s cubic-bezier(.2, 1.6, .4, 1) forwards; }
@keyframes msgPop { to { opacity: 1; transform: scale(1); } }
.slot-ov.flash::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 42%, rgba(255, 241, 201, 0.55), transparent 60%); animation: flash 0.9s ease-out forwards; pointer-events: none; }
@keyframes flash { from { opacity: 1; } to { opacity: 0; } }
.slot-bonus { position: relative; z-index: 2; width: min(380px, 100%); text-align: center; animation: bonusIn 0.7s var(--ease) both; }
@keyframes bonusIn { from { opacity: 0; transform: translateY(16px); } }
.slot-bonus-k { font: 700 12px var(--font); letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); }
.slot-bonus-t { font: 700 24px/1.2 var(--display); letter-spacing: -0.02em; margin: 8px 0 16px; color: #fff6dd; }
.slot-fx { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 3; }
@media (max-width: 600px) { .slot-window { height: 130px; } .slot-cell { height: 84px; font-size: 34px; } .slot-strip { padding-top: 23px; } .slot-cell.sc svg { width: 46px; height: 46px; } }