/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #AFE6EB;
  --accent: #FF5722;
  --accent-hover: #E64A19;
  --text: #1a2e35;
  --text-light: #4a6670;
  --card-bg: rgba(255, 255, 255, 0.88);
  --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --radius: 16px;
  --radius-sm: 12px;
  --font-display: 'Baloo 2', cursive;
  --font-body: 'DM Sans', sans-serif;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* === Background Pattern === */
.bg-pattern {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-pattern-inner {
  display: flex;
  flex-wrap: wrap;
  transform: rotate(-15deg) scale(1.4);
  transform-origin: center center;
  opacity: 0.15;
  width: 140%;
  margin-left: -20%;
  margin-top: -10%;
}

.bg-pattern-row {
  display: flex;
  gap: 25px;
  margin-bottom: 25px;
  width: 100%;
}

.bg-pattern-row:nth-child(3n+2) {
  margin-left: 40px;
}

.bg-pattern-row:nth-child(3n+3) {
  margin-left: 20px;
}

.bg-pattern-row img {
  width: calc(100% / 18 - 10px);
  flex-shrink: 0;
  height: auto;
  object-fit: contain;
}

/* === Layout === */
.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

/* === Hero === */
.hero {
  text-align: center;
  margin-bottom: 32px;
}

.logo {
  width: 180px;
  height: auto;
  margin-bottom: 32px;
}

h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero-text {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 12px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-text strong {
  color: var(--accent);
  font-weight: 600;
}

/* === Cards (iOS-style squircle) === */
.card-wrap {
  margin-bottom: 24px;
  filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.08));
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  padding: 32px 28px;
  border-radius: 0;
}

h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.card > p {
  color: var(--text-light);
  margin-bottom: 20px;
}

/* === Steps Card === */
.steps-card {
  padding: 0;
}

.step-block {
  padding: 28px;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.step-header strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.step-block > p {
  color: var(--text-light);
  font-size: 0.94rem;
  margin-bottom: 16px;
}

.step-divider {
  border: none;
  border-top: 2px dotted #c8dde0;
  margin: 0;
}

.btn-block {
  display: block;
  width: 100%;
}

.step-block .input-group {
  flex-direction: column;
}

/* === Buttons === */
.btn {
  display: inline-block;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--accent);
  color: white;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 12px rgba(255, 87, 34, 0.25);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: scale(1.02);
  box-shadow: 0 4px 20px rgba(255, 87, 34, 0.35);
}

.btn-copy {
  background: var(--text);
  color: white;
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 0.88rem;
}

.btn-copy:hover {
  background: #2c4a54;
  transform: scale(1.02);
}

/* === Input Group === */
.input-group {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.input-group input {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid #d0e8eb;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: white;
  outline: none;
  transition: border-color 0.2s ease;
}

.input-group input:focus {
  border-color: var(--accent);
}

.input-group input::placeholder {
  color: #9cb8be;
}

/* === Error Message === */
.error-msg {
  background: #fff0ed;
  color: #d32f2f;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.92rem;
  margin-bottom: 16px;
}

/* === Coupon === */
.coupon {
  margin-top: 8px;
}

.coupon-inner {
  border: 2px dashed var(--accent);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  background: #fff8f5;
  position: relative;
}

.coupon-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-light);
  margin-bottom: 8px;
  font-weight: 600;
}

.coupon-code {
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.coupon-credits {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.coupon-hint {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 12px;
}

/* === Coupon Reveal Animation === */
.coupon.reveal .coupon-inner {
  animation: couponPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes couponPop {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* === Footer === */
footer {
  text-align: center;
  padding: 32px 0 0;
  color: var(--text-light);
  font-size: 0.85rem;
}

/* === Fade In Animation === */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  animation: fadeInUp 0.5s ease forwards;
}

.fade-in:nth-child(2) { animation-delay: 0.1s; }
.fade-in:nth-child(3) { animation-delay: 0.2s; }
.fade-in:nth-child(4) { animation-delay: 0.3s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === Responsive === */
@media (max-width: 480px) {
  .container {
    padding: 24px 16px 40px;
  }

  .logo {
    width: 140px;
    margin-bottom: 24px;
  }

  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .card {
    padding: 24px 20px;
  }

  .input-group {
    flex-direction: column;
  }

  .input-group .btn {
    width: 100%;
  }

  .coupon-code {
    font-size: 1.3rem;
  }
}

/* === Admin Styles === */
.admin-header {
  text-align: center;
  margin-bottom: 24px;
}

.summary-bar {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.summary-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
  text-align: center;
  box-shadow: var(--card-shadow);
  min-width: 120px;
}

.summary-item .number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.summary-item .label {
  font-size: 0.82rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* === Admin Table === */
.table-wrapper {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-light);
  padding: 14px 16px;
  text-align: left;
  border-bottom: 2px solid #e0eef0;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid #eef4f5;
  font-size: 0.92rem;
}

tr:last-child td {
  border-bottom: none;
}

td.code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.status-unused {
  color: #2e7d32;
  font-weight: 600;
}

.status-claimed {
  color: var(--accent);
  font-weight: 600;
}