:root {
  color-scheme: light;
  --bg: #fff8f1;
  --ink: #291b25;
  --muted: #6d5b63;
  --paper: #ffffff;
  --paper-soft: #fff3e5;
  --line: #eadfd6;
  --rose: #b23a5b;
  --rose-dark: #8c2140;
  --gold: #d99a2b;
  --mint: #6aa982;
  --sky: #78a6c8;
  --shadow: 0 22px 60px rgba(78, 42, 54, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(217, 154, 43, 0.18), transparent 28rem),
    linear-gradient(135deg, #fff8f1 0%, #f8ece6 48%, #edf5ef 100%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button {
  font: inherit;
}

.birthday-intro {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 24px;
  background:
    radial-gradient(circle at 18% 18%, rgba(217, 154, 43, 0.32), transparent 18rem),
    radial-gradient(circle at 82% 16%, rgba(120, 166, 200, 0.32), transparent 18rem),
    radial-gradient(circle at 50% 92%, rgba(178, 58, 91, 0.24), transparent 20rem),
    linear-gradient(135deg, #2a1522 0%, #6d2440 48%, #123644 100%);
  color: #fffaf5;
  opacity: 1;
  transition:
    opacity 520ms ease,
    visibility 520ms ease;
}

.birthday-intro.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.birthday-card {
  position: relative;
  z-index: 2;
  width: min(620px, 100%);
  padding: clamp(28px, 8vw, 54px);
  border: 2px dashed rgba(255, 250, 245, 0.72);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(255, 250, 245, 0.12) 0 16px, transparent 16px),
    rgba(41, 27, 37, 0.56);
  box-shadow:
    inset 0 0 0 7px rgba(255, 255, 255, 0.08),
    0 26px 80px rgba(0, 0, 0, 0.34);
  text-align: center;
  animation: birthday-pop 680ms cubic-bezier(0.2, 0.9, 0.25, 1.2) both;
}

.birthday-kicker {
  margin: 0 0 10px;
  color: #ffd894;
  font-size: 0.85rem;
  font-weight: 900;
  text-transform: uppercase;
}

.birthday-card h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 13vw, 7rem);
  line-height: 0.9;
  letter-spacing: 0;
  text-shadow: 0 6px 22px rgba(0, 0, 0, 0.24);
}

.birthday-message {
  max-width: 420px;
  margin: 18px auto 24px;
  color: rgba(255, 250, 245, 0.88);
  font-size: 1.08rem;
  line-height: 1.55;
}

.intro-button {
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  padding: 0 22px;
  color: var(--rose-dark);
  background: #fff2d2;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  font-weight: 900;
}

.fireworks {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.firework {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 8px;
  height: 8px;
}

.spark {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--spark-color);
  box-shadow: 0 0 14px var(--spark-color);
  transform: translate(-50%, -50%) rotate(var(--angle)) translateY(0);
  animation: spark-burst 1500ms ease-out infinite;
  animation-delay: var(--delay);
}

.confetti-row {
  position: absolute;
  inset: auto 0 10%;
  display: flex;
  justify-content: center;
  gap: clamp(16px, 6vw, 54px);
  color: rgba(255, 232, 164, 0.9);
  font-size: clamp(1.3rem, 4vw, 2.8rem);
  pointer-events: none;
}

.confetti-row span {
  animation: float-confetti 2200ms ease-in-out infinite alternate;
}

.confetti-row span:nth-child(2n) {
  color: #ffb6c9;
  animation-delay: 320ms;
}

.confetti-row span:nth-child(3n) {
  color: #b9edf2;
  animation-delay: 620ms;
}

@keyframes birthday-pop {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes spark-burst {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(0) scale(0.4);
  }

  12% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(var(--distance)) scale(0.1);
  }
}

@keyframes float-confetti {
  from {
    transform: translateY(0) rotate(-8deg);
  }

  to {
    transform: translateY(-22px) rotate(10deg);
  }
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.top-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
  padding: 26px 0 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--rose);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.3rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.progress-card {
  display: grid;
  place-items: center;
  min-width: 116px;
  min-height: 96px;
  border: 1px solid rgba(178, 58, 91, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.progress-card span {
  color: var(--rose-dark);
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1;
}

.progress-card small {
  color: var(--muted);
  font-weight: 700;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin: 18px 0 20px;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-button,
.redeem-button,
.delete-button,
.secondary-button,
.add-voucher-button,
.icon-button {
  min-height: 44px;
  border: 0;
  cursor: pointer;
}

.filter-button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.7);
  font-weight: 800;
}

.filter-button.is-active {
  border-color: var(--rose);
  color: #fff;
  background: var(--rose);
}

.add-voucher-button {
  border-radius: 999px;
  padding: 0 18px;
  color: #fff;
  background: var(--ink);
  font-weight: 900;
}

.coupon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.coupon-card {
  position: relative;
  min-height: 224px;
  overflow: hidden;
  border: 2px dashed rgba(178, 58, 91, 0.52);
  border-radius: 8px;
  padding: 18px 18px 20px;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(178, 58, 91, 0.09) 0 14px, transparent 14px),
    repeating-linear-gradient(0deg, rgba(41, 27, 37, 0.025) 0 1px, transparent 1px 8px),
    linear-gradient(135deg, #fffdf8 0%, #fff6e8 100%);
  box-shadow:
    inset 0 0 0 5px rgba(255, 255, 255, 0.72),
    inset 0 0 0 7px rgba(178, 58, 91, 0.13),
    0 12px 30px rgba(78, 42, 54, 0.12);
  text-align: left;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.coupon-card::before,
.coupon-card::after {
  position: absolute;
  top: 50%;
  z-index: 1;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  content: "";
  box-shadow: inset 0 0 0 2px rgba(178, 58, 91, 0.22);
  transform: translateY(-50%);
}

.coupon-card::before {
  left: -16px;
}

.coupon-card::after {
  right: -16px;
}

.coupon-card:nth-child(4n + 2) {
  border-color: rgba(217, 154, 43, 0.62);
  background:
    linear-gradient(90deg, rgba(217, 154, 43, 0.12) 0 14px, transparent 14px),
    repeating-linear-gradient(0deg, rgba(41, 27, 37, 0.025) 0 1px, transparent 1px 8px),
    linear-gradient(135deg, #fffdf8 0%, #fff4dd 100%);
}

.coupon-card:nth-child(4n + 3) {
  border-color: rgba(106, 169, 130, 0.62);
  background:
    linear-gradient(90deg, rgba(106, 169, 130, 0.12) 0 14px, transparent 14px),
    repeating-linear-gradient(0deg, rgba(41, 27, 37, 0.025) 0 1px, transparent 1px 8px),
    linear-gradient(135deg, #fffdf8 0%, #edf8ef 100%);
}

.coupon-card:nth-child(4n + 4) {
  border-color: rgba(120, 166, 200, 0.62);
  background:
    linear-gradient(90deg, rgba(120, 166, 200, 0.12) 0 14px, transparent 14px),
    repeating-linear-gradient(0deg, rgba(41, 27, 37, 0.025) 0 1px, transparent 1px 8px),
    linear-gradient(135deg, #fffdf8 0%, #eef7fb 100%);
}

.coupon-card:hover,
.coupon-card:focus-visible {
  border-color: rgba(178, 58, 91, 0.38);
  box-shadow:
    inset 0 0 0 5px rgba(255, 255, 255, 0.78),
    inset 0 0 0 7px rgba(178, 58, 91, 0.18),
    0 18px 44px rgba(78, 42, 54, 0.16);
  transform: translateY(-3px);
}

.coupon-card:focus-visible,
.filter-button:focus-visible,
.add-voucher-button:focus-visible,
.redeem-button:focus-visible,
.delete-button:focus-visible,
.secondary-button:focus-visible,
.icon-button:focus-visible {
  outline: 3px solid rgba(178, 58, 91, 0.28);
  outline-offset: 3px;
}

.coupon-card.is-redeemed {
  opacity: 0.72;
  filter: saturate(0.75);
}

.coupon-card.is-redeemed .coupon-title {
  text-decoration: line-through;
}

.coupon-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 42px;
  padding-bottom: 13px;
  border-bottom: 1px dashed rgba(41, 27, 37, 0.18);
}

.coupon-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(41, 27, 37, 0.12);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fff 0 48%, transparent 50%),
    repeating-conic-gradient(rgba(178, 58, 91, 0.22) 0 8deg, transparent 8deg 16deg);
  color: var(--rose-dark);
  font-size: 1.35rem;
}

.coupon-status {
  border: 1px dashed rgba(178, 58, 91, 0.5);
  border-radius: 4px;
  padding: 6px 9px;
  color: var(--rose-dark);
  background: rgba(255, 255, 255, 0.55);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
  transform: rotate(-2deg);
  white-space: nowrap;
}

.coupon-card.is-redeemed .coupon-status {
  color: #ffffff;
  background: var(--mint);
}

.coupon-category {
  display: block;
  margin: 18px 0 8px;
  color: var(--rose);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.coupon-title {
  display: block;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.48rem;
  font-weight: 800;
  line-height: 1.1;
}

.coupon-teaser {
  display: block;
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.empty-state {
  grid-column: 1 / -1;
  margin: 0;
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.62);
  text-align: center;
}

.coupon-dialog {
  width: min(560px, calc(100% - 28px));
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
}

.coupon-dialog::backdrop {
  background: rgba(41, 27, 37, 0.44);
  backdrop-filter: blur(5px);
}

.dialog-card {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.close-button {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  color: var(--muted);
  background: #f8efe9;
  font-size: 1.2rem;
  font-weight: 900;
}

.dialog-icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 16px;
  place-items: center;
  border-radius: 8px;
  background: #fff1d7;
  color: var(--rose-dark);
  font-size: 1.8rem;
}

.dialog-category {
  margin: 0 52px 8px 0;
  color: var(--rose);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.dialog-card h2 {
  margin: 0;
  font-size: clamp(1.8rem, 8vw, 3rem);
  line-height: 1;
  letter-spacing: 0;
}

.dialog-description {
  margin: 16px 0 22px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.details-list {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
}

.details-list div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf5;
}

.details-list dt {
  margin-bottom: 5px;
  color: var(--rose);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.details-list dd {
  margin: 0;
  color: var(--ink);
  line-height: 1.45;
}

.redeem-button {
  border-radius: 8px;
  color: #fff;
  background: var(--rose);
  font-weight: 900;
}

.redeem-button.is-redeemed {
  background: var(--mint);
}

.dialog-actions {
  display: grid;
  grid-template-columns: 0.8fr 0.8fr 1.4fr;
  gap: 10px;
}

.delete-button {
  border-radius: 8px;
  color: #9c2632;
  background: #f9e8e7;
  font-weight: 900;
}

.voucher-form {
  display: grid;
  gap: 14px;
}

.voucher-form h2 {
  margin-bottom: 4px;
}

.voucher-form label {
  display: grid;
  gap: 7px;
}

.voucher-form label span {
  color: var(--rose);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.voucher-form input,
.voucher-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--ink);
  background: #fffaf5;
  font: inherit;
}

.voucher-form textarea {
  resize: vertical;
}

.voucher-form input:focus,
.voucher-form textarea:focus {
  border-color: rgba(178, 58, 91, 0.6);
  outline: 3px solid rgba(178, 58, 91, 0.18);
}

.form-actions {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 10px;
  margin-top: 4px;
}

.secondary-button {
  border-radius: 8px;
  color: var(--muted);
  background: #f8efe9;
  font-weight: 900;
}

@media (max-width: 700px) {
  .app-shell {
    width: min(100% - 24px, 1120px);
    padding-top: 18px;
  }

  .top-panel {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .progress-card {
    grid-auto-flow: column;
    justify-content: center;
    width: 100%;
    min-height: 62px;
    gap: 8px;
  }

  .coupon-grid {
    grid-template-columns: 1fr;
  }

  .add-voucher-button,
  .filter-group {
    width: 100%;
  }

  .filter-button,
  .add-voucher-button {
    flex: 1 1 auto;
  }

  .dialog-card {
    padding: 24px 20px;
  }

  .form-actions {
    grid-template-columns: 1fr;
  }

  .dialog-actions {
    grid-template-columns: 1fr;
  }
}