/* ═══════════════════════════════════════════════════════════
   SYNC BY EMILY — Color System & Design Tokens
   ═══════════════════════════════════════════════════════════ */
:root {
  /* ── Brand Colors ── */
  --color-bg:      #fffaf5;
  --color-text:    #222222;
  --color-gold:    #cfaf4a;
  --color-red:     #f00420;
  --color-white:   #ffffff;

  /* ── Derived ── */
  --color-gold-light:  rgba(207, 175, 74, 0.14);
  --color-gold-border: rgba(207, 175, 74, 0.35);
  --color-text-muted:  rgba(34, 34, 34, 0.5);
  --color-overlay:     rgba(255, 250, 245, 0.97);

  /* ── Typography ── */
  --font-body:    system-ui, 'Segoe UI', Arial, sans-serif;
  --font-cursive: 'Dancing Script', cursive;

  /* ── Card Dimensions — capped to phone width ── */
  --card-w: min(17rem, min(78vw, 335px));
  --card-h: calc(var(--card-w) * 1.42);
  --card-radius: 1.25rem;

  /* ── Buttons ── */
  --btn-radius: 3rem;
  --btn-h:      3.25rem;

  /* ── Layout ── */
  --pad: 1.5rem;

  /* ── Shadows ── */
  --shadow-card: 0 8px 32px rgba(34, 34, 34, 0.10);
  --shadow-deck: 0 4px 16px rgba(34, 34, 34, 0.08);

  /* ── Animations ── */
  --flip-dur:    0.6s;
  --shuffle-dur: 0.65s;
}

/* ═══════════════════════════════════════════════════════════
   Reset & Base
   ═══════════════════════════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  height: 100%;
  background: #111; /* desktop surround — neutral dark */
}

body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  direction: rtl;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* ═══════════════════════════════════════════════════════════
   Screen System — Phone-width container, centered on desktop
   ═══════════════════════════════════════════════════════════ */
.screen {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--pad);
  padding-top:    max(var(--pad), env(safe-area-inset-top,    var(--pad)));
  padding-bottom: max(var(--pad), env(safe-area-inset-bottom, var(--pad)));
  background: var(--color-bg);
  overflow: hidden;
  gap: 1.5rem;
}

.screen.active {
  display: flex;
}

.screen-overlay {
  background: var(--color-overlay);
  z-index: 100;
}

/* ═══════════════════════════════════════════════════════════
   Logo
   ═══════════════════════════════════════════════════════════ */
.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.05rem;
  line-height: 1;
}

.logo-sync {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--color-text);
  letter-spacing: 0.18em;
  line-height: 1;
}

.logo-byemily {
  font-family: var(--font-cursive);
  font-size: 1.5rem;
  color: var(--color-gold);
  line-height: 1.2;
}

.logo-small .logo-sync    { font-size: 2rem; }
.logo-small .logo-byemily { font-size: 1.1rem; }

/* ═══════════════════════════════════════════════════════════
   Landing Screen — Full-cover background image
   ═══════════════════════════════════════════════════════════ */
#screen-landing {
  background-image: url('משחק קלפים זוגי sync (1).png');
  background-size: cover;
  background-position: center center;
  background-color: #1a0005;
  justify-content: flex-end;
  padding: 0;
  padding-bottom: clamp(3.5rem, 12vh, 7rem);
}

.btn-landing {
  min-width: 14rem;
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  background: var(--color-red); /* always red, overrides .btn-primary gold */
}

/* ═══════════════════════════════════════════════════════════
   Buttons
   ═══════════════════════════════════════════════════════════ */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 18rem;
  height: var(--btn-h);
  border: none;
  border-radius: var(--btn-radius);
  font-size: 1.05rem;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  -webkit-appearance: none;
  transition: transform 0.12s ease, opacity 0.12s ease;
  touch-action: manipulation;
  user-select: none;
}

.btn:active {
  transform: scale(0.96);
  opacity: 0.88;
}

/* "בוצע" — gold background, cream text */
.btn-primary {
  background: var(--color-gold);
  color: var(--color-bg);
}

/* Landing button overrides to red */
.btn-landing {
  background: var(--color-red);
}

/* "חוב מתוק" — cream background, gold text, gold border */
.btn-secondary {
  background: var(--color-bg);
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   Setup Screen
   ═══════════════════════════════════════════════════════════ */
.setup-subtitle {
  font-size: 0.95rem;
  color: var(--color-gold);
  font-weight: 500;
  margin-top: -0.5rem;
  text-align: center;
}

.setup-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  width: 100%;
  max-width: 18rem;
}

.setup-form input {
  height: 3rem;
  border: 1.5px solid var(--color-gold-border);
  border-radius: 0.75rem;
  padding: 0 1rem;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  text-align: center;
  direction: rtl;
  -webkit-appearance: none;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.setup-form input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px var(--color-gold-light);
}

.setup-form input::placeholder {
  color: rgba(34, 34, 34, 0.32);
}

/* ═══════════════════════════════════════════════════════════
   Instructions Screen
   ═══════════════════════════════════════════════════════════ */
.instructions-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-gold-border);
  border-radius: var(--card-radius);
  padding: 2rem 1.5rem;
  max-width: 20rem;
  width: 100%;
  box-shadow: var(--shadow-card);
}

.instructions-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  counter-reset: instructions;
}

.instructions-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  direction: rtl;
  text-align: right;
  counter-increment: instructions;
}

.instructions-list li::before {
  content: counter(instructions);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  background: var(--color-gold);
  color: var(--color-bg);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   Deck Screen
   ═══════════════════════════════════════════════════════════ */
.deck-container {
  position: relative;
  width: var(--card-w);
  height: var(--card-h);
  cursor: pointer;
  touch-action: manipulation;
  flex-shrink: 0;
}

/* Red card backs in the deck — thin black border for depth on cream bg */
.deck-card {
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  background: var(--color-red);
  border: 1px solid rgba(0, 0, 0, 0.6);
  box-shadow: var(--shadow-deck);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Stacked offset — each card peeks slightly */
.deck-card-5 { transform: rotate(-4deg) translate(-5px,  4px); z-index: 1; }
.deck-card-4 { transform: rotate(-2deg) translate(-3px,  2px); z-index: 2; }
.deck-card-3 { transform: rotate( 0deg) translate( 0,    0  ); z-index: 3; }
.deck-card-2 { transform: rotate( 2deg) translate( 3px,  2px); z-index: 4; }
.deck-card-1 { transform: rotate( 1deg) translate( 1px,  1px); z-index: 5; }

.deck-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.05rem;
  pointer-events: none;
  user-select: none;
}

.deck-logo .logo-sync {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-bg);
  letter-spacing: 0.18em;
}

.deck-logo .logo-byemily {
  font-family: var(--font-cursive);
  font-size: 1rem;
  color: var(--color-gold);
}

.deck-hint {
  font-size: 0.85rem;
  color: var(--color-gold);
  text-align: center;
  letter-spacing: 0.02em;
}

/* Shuffle Animation */
@keyframes shuffle {
  0%   { transform: rotate( 1deg) translate( 1px,  1px); }
  15%  { transform: rotate(-9deg) translate(-14px, -5px) scale(1.05); }
  30%  { transform: rotate( 7deg) translate( 9px,  -7px) scale(1.03); }
  50%  { transform: rotate(-5deg) translate(-7px,   2px) scale(1.04); }
  70%  { transform: rotate( 4deg) translate( 5px,  -2px) scale(1.02); }
  85%  { transform: rotate(-1deg) translate(-2px,   1px); }
  100% { transform: rotate( 1deg) translate( 1px,  1px); }
}

.deck-container.shuffling .deck-card-1 {
  animation: shuffle var(--shuffle-dur) ease-in-out;
}

/* ═══════════════════════════════════════════════════════════
   Card Flip (3D)
   ═══════════════════════════════════════════════════════════ */
/* Card counter hidden — users don't need to see card numbers */
.card-counter {
  display: none;
}

.card-flip-container {
  width: var(--card-w);
  height: var(--card-h);
  perspective: 1000px;
  flex-shrink: 0;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform var(--flip-dur) cubic-bezier(0.4, 0.2, 0.2, 1);
}

.card-flip-container.flipped .card-inner {
  transform: rotateY(180deg);
}

/* Both faces: red background, thin black border, rounded, shadow */
.card-face {
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.75rem 1.5rem;
  background: var(--color-red);
  border: 1px solid rgba(0, 0, 0, 0.6);
  gap: 1rem;
}

.card-back-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.05rem;
}

.card-back-logo .logo-sync {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-bg);
  letter-spacing: 0.18em;
}

.card-back-logo .logo-byemily {
  font-family: var(--font-cursive);
  font-size: 1.2rem;
  color: var(--color-gold);
}

.card-front {
  transform: rotateY(180deg);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  justify-content: center;
}

.card-front::-webkit-scrollbar { display: none; }

/* Cream text on red card */
.card-text {
  font-size: 1.05rem;
  line-height: 1.75;
  text-align: center;
  color: var(--color-bg);
  direction: rtl;
  white-space: pre-line;
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 18rem;
}

/* ═══════════════════════════════════════════════════════════
   Timer Display
   ═══════════════════════════════════════════════════════════ */
.timer-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 1.4rem;
  border-radius: 2rem;
  background: rgba(255, 250, 245, 0.18);
  border: 1.5px solid rgba(255, 250, 245, 0.55);
  color: var(--color-bg);
  flex-shrink: 0;
}

/* Debt timer (on cream overlay) uses gold */
#screen-debt .timer-display {
  background: var(--color-gold-light);
  border: 1.5px solid var(--color-gold);
  color: var(--color-gold);
}

.timer-display #timer-value,
.timer-display #debt-timer-value {
  font-size: 1.85rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.timer-label {
  font-size: 0.88rem;
  font-weight: 500;
}

.timer-display.urgent {
  background: rgba(255, 250, 245, 0.30);
  border-color: var(--color-bg);
  color: var(--color-bg);
  animation: pulse 0.5s ease-in-out infinite alternate;
}

#screen-debt .timer-display.urgent {
  background: rgba(240, 4, 32, 0.08);
  border-color: var(--color-red);
  color: var(--color-red);
}

@keyframes pulse {
  from { opacity: 0.65; }
  to   { opacity: 1; }
}

.hidden { display: none !important; }

/* ═══════════════════════════════════════════════════════════
   Sweet Debt Screen
   ═══════════════════════════════════════════════════════════ */
.debt-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  max-width: 21rem;
  text-align: center;
}

.debt-title {
  font-family: var(--font-cursive);
  font-size: 2rem;
  color: var(--color-gold);
  font-weight: 700;
}

.debt-text {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text);
  direction: rtl;
  white-space: pre-line;
}

/* ═══════════════════════════════════════════════════════════
   Junction Screen
   ═══════════════════════════════════════════════════════════ */
.junction-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-gold-border);
  border-radius: var(--card-radius);
  padding: 2rem 1.5rem;
  max-width: 20rem;
  box-shadow: var(--shadow-card);
}

.junction-text {
  font-size: 1rem;
  line-height: 1.85;
  text-align: center;
  color: var(--color-text);
  direction: rtl;
}

/* ═══════════════════════════════════════════════════════════
   End Screen
   ═══════════════════════════════════════════════════════════ */
.end-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  max-width: 21rem;
  text-align: center;
  width: 100%;
}

.end-message {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
  direction: rtl;
  white-space: pre-line;
}

.video-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  max-width: 18rem;
  aspect-ratio: 16/9;
  background: var(--color-gold-light);
  border: 1.5px solid var(--color-gold-border);
  border-radius: 0.75rem;
  color: var(--color-gold);
  font-size: 0.9rem;
}

.video-icon {
  font-size: 2rem;
  opacity: 0.6;
}

.end-social {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 18rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--btn-radius);
  background: var(--color-gold-light);
  border: 1.5px solid var(--color-gold-border);
  color: var(--color-gold);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  direction: rtl;
  transition: background 0.15s ease;
}

.social-link:active {
  background: rgba(207, 175, 74, 0.25);
}

.social-icon {
  font-size: 1.2rem;
}