/* --- ENHANCED RESPONSIVE CSS --- */
:root {
  --scale: 1;

  /* Modern Color Palette */
  --primary-blue: #0082c3;
  --primary-blue-dark: #0066a1;
  --accent-green: #00ff9d;
  --accent-red: #ff3b5c;
  --accent-yellow: #ffd93d;
  --accent-purple: #a78bfa;

  --bg-dark: #0a0a0f;
  --bg-card: #1a1a2e;
  --bg-card-hover: #252540;

  --text-primary: #ffffff;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b85;

  --border-color: #2a2a45;
  --glow-blue: rgba(0, 130, 195, 0.4);
  --glow-green: rgba(0, 255, 157, 0.3);
  --glow-red: rgba(255, 59, 92, 0.3);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #0f0f1e 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter",
    sans-serif;
}

.slide-container {
  position: relative;
  width: 100vw;
  height: 100vh;
}

.slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--bg-dark);
  padding: calc(30px * var(--scale));
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
}

.slide.active {
  opacity: 1;
  z-index: 1;
}

/* ===== HEADER SECTION ===== */
.header {
  height: 10%;
  min-height: calc(60px * var(--scale));
  display: flex;
  align-items: center;
  padding: calc(15px * var(--scale)) calc(25px * var(--scale));
  background: linear-gradient(
    135deg,
    rgba(26, 26, 46, 0.9) 0%,
    rgba(26, 26, 46, 0.7) 100%
  );
  border-radius: calc(16px * var(--scale));
  border: calc(1px * var(--scale)) solid var(--border-color);
  margin-bottom: calc(30px * var(--scale));
  box-shadow: 0 calc(8px * var(--scale)) calc(32px * var(--scale))
    rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
}

.logo {
  height: calc(80px * var(--scale));
  width: auto;
  margin-right: calc(50px * var(--scale));
  filter: drop-shadow(0 0 calc(10px * var(--scale)) var(--glow-blue));
}

@keyframes shimmer {
  0%,
  100% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
}

.header-time {
  margin-left: auto;
  color: #71d0ff;
  font-size: calc(1.8rem * var(--scale));
  font-weight: 600;
  letter-spacing: calc(1px * var(--scale));
  padding: calc(8px * var(--scale)) calc(16px * var(--scale));
  background: rgba(255, 255, 255, 0.05);
  border-radius: calc(8px * var(--scale));
  border: calc(1px * var(--scale)) solid rgba(255, 255, 255, 0.1);
}

/* ===== UPDATE BUTTON ===== */
.update-btn {
  margin-left: calc(20px * var(--scale));
  background: linear-gradient(135deg, #7c8ad3 0%, #1f355c 100%);
  color: #f5f5f5;
  border: none;
  border-radius: calc(12px * var(--scale));
  padding: calc(12px * var(--scale)) calc(24px * var(--scale));
  font-size: calc(2rem * var(--scale));
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: calc(10px * var(--scale));
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 calc(4px * var(--scale)) calc(20px * var(--scale))
    var(--glow-green);
  text-transform: uppercase;
  letter-spacing: calc(1px * var(--scale));
}

.update-btn:hover {
  transform: translateY(calc(-3px * var(--scale))) scale(1.05);
  box-shadow: 0 calc(8px * var(--scale)) calc(30px * var(--scale))
    var(--glow-green);
}

.update-btn:active {
  transform: translateY(0) scale(0.98);
}

.update-btn-icon {
  font-size: calc(2.5rem * var(--scale));
  display: inline-block;
  animation: none;
}

.update-btn.loading .update-btn-icon {
  animation: rotate 1s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ===== CONTENT SECTION ===== */
.content {
  display: flex;
  height: calc(90% - 30px * var(--scale));
  width: 100%;
  gap: calc(30px * var(--scale));
}

.column {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: linear-gradient(
    135deg,
    rgba(26, 26, 46, 0.6) 0%,
    rgba(26, 26, 46, 0.4) 100%
  );
  border-radius: calc(20px * var(--scale));
  padding: calc(30px * var(--scale));
  border: calc(2px * var(--scale)) solid var(--border-color);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.column::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: calc(4px * var(--scale));
  background: linear-gradient(
    90deg,
    var(--primary-blue),
    var(--accent-purple),
    var(--accent-green)
  );
  border-radius: calc(20px * var(--scale)) calc(20px * var(--scale)) 0 0;
}

.section-title {
  font-size: calc(3rem * var(--scale));
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: calc(3px * var(--scale));
  text-align: center;
  margin-bottom: calc(25px * var(--scale));
  font-weight: 900;
  position: relative;
  padding-bottom: calc(15px * var(--scale));
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: calc(60px * var(--scale));
  height: calc(3px * var(--scale));
  background: linear-gradient(
    90deg,
    transparent,
    var(--primary-blue),
    transparent
  );
  border-radius: calc(2px * var(--scale));
}

/* ===== MAIN METRIC CARD ===== */
.main-metric {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0.03) 100%
  );
  border-radius: calc(20px * var(--scale));
  padding: calc(25px * var(--scale)) calc(20px * var(--scale));
  text-align: center;
  margin-bottom: calc(25px * var(--scale));
  border: calc(2px * var(--scale)) solid transparent;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: calc(200px * var(--scale));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.main-metric::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at top,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.main-metric:hover::before {
  opacity: 1;
}

.main-metric.positive {
  border-left: calc(6px * var(--scale)) solid var(--accent-green);
  box-shadow: calc(-20px * var(--scale)) 0 calc(40px * var(--scale))
    var(--glow-green);
}

.main-metric.negative {
  border-left: calc(6px * var(--scale)) solid var(--accent-red);
  box-shadow: calc(-20px * var(--scale)) 0 calc(40px * var(--scale))
    var(--glow-red);
}

.metric-label {
  font-size: calc(2.2rem * var(--scale));
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: calc(2px * var(--scale));
  font-weight: 700;
  margin-bottom: calc(12px * var(--scale));
}

.metric-value {
  font-size: calc(12rem * var(--scale));
  line-height: 0.95;
  margin: calc(15px * var(--scale)) 0;
  font-weight: 900;
  background: linear-gradient(135deg, #ffffff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: calc(-2px * var(--scale));
  display: inline-block;
}

.metric-unit {
  font-size: calc(6rem * var(--scale));
  color: var(--text-secondary);
  font-weight: 700;
  margin-left: calc(8px * var(--scale));
  vertical-align: baseline;
}

.metric-change {
  font-size: calc(4rem * var(--scale));
  font-weight: 800;
  margin-top: calc(12px * var(--scale));
  padding: calc(10px * var(--scale)) calc(24px * var(--scale));
  border-radius: calc(12px * var(--scale));
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: calc(2px * var(--scale));
}

.metric-change.positive {
  color: var(--accent-green);
  background: rgba(0, 255, 157, 0.15);
  box-shadow: 0 0 calc(20px * var(--scale)) var(--glow-green);
}

.metric-change.negative {
  color: var(--accent-red);
  background: rgba(255, 59, 92, 0.15);
  box-shadow: 0 0 calc(20px * var(--scale)) var(--glow-red);
}

/* ===== BREAKDOWN SECTION - OPTIMIZED FOR TV ===== */
.breakdown {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly; /* Thay đổi từ space-around sang space-evenly để khoảng cách đều hơn */
  gap: calc(25px * var(--scale)); /* Tăng gap từ 20px lên 25px */
  padding: calc(5px * var(--scale)) 0; /* Giảm padding để dành chỗ cho items */
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: calc(30px * var(--scale)) calc(35px * var(--scale)); /* Tăng padding lên */
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.06) 0%,
    rgba(255, 255, 255, 0.02) 100%
  );
  border-radius: calc(16px * var(--scale));
  border: calc(1px * var(--scale)) solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: calc(130px * var(--scale)); /* Tăng từ 100px lên 130px */
  flex: 1; /* Cho phép các item chia đều không gian */
}

.breakdown-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: calc(4px * var(--scale));
  background: linear-gradient(
    180deg,
    transparent,
    var(--primary-blue),
    transparent
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.breakdown-item:hover {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  transform: translateX(calc(5px * var(--scale)));
}

.breakdown-item:hover::before {
  opacity: 1;
}

.breakdown-label {
  font-size: 2.2rem; /* 1/2 của min-height 130px */
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: calc(2px * var(--scale));
  white-space: nowrap; /* Đảm bảo label không bị wrap */
  flex-shrink: 0; /* Không cho label bị co lại */
  line-height: 1.1;
}

.breakdown-label.hcm {
  color: var(--primary-blue);
  text-shadow: 0 0 calc(20px * var(--scale)) var(--glow-blue);
}

.breakdown-label.hanoi {
  color: var(--accent-yellow);
  text-shadow: 0 0 calc(20px * var(--scale)) rgba(255, 217, 61, 0.4);
}

.breakdown-label.web-app {
  color: var(--accent-green);
  text-shadow: 0 0 calc(20px * var(--scale)) var(--glow-green);
}

.breakdown-value {
  display: flex;
  align-items: center;
  gap: calc(10px * var(--scale)); /* Tăng gap từ 1.5vw lên 20px */
  flex-shrink: 1;
  justify-content: flex-end;
  max-width: 65%;
  overflow: hidden;
}

.breakdown-number {
  font-size: 2.3rem; /* Proportional với label size */
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: calc(-1px * var(--scale));
  white-space: nowrap; /* Đảm bảo số không bị wrap */
  text-align: right;
  min-width: fit-content;
  line-height: 1.1;
}

.breakdown-change {
  font-size: 1.8rem; /* Proportional với breakdown-number */
  font-weight: 700;
  letter-spacing: calc(-3px * var(--scale));
  padding: calc(5px * var(--scale)) calc(10px * var(--scale)); /* Tăng padding */
  border-radius: calc(12px * var(--scale));
  display: inline-block;
  white-space: nowrap; /* Đảm bảo change không bị wrap */
  min-width: fit-content;
  line-height: 1.1;
}

.breakdown-change.positive {
  color: var(--accent-green);
  background: rgba(0, 255, 157, 0.12);
}

.breakdown-change.negative {
  color: var(--accent-red);
  background: rgba(255, 59, 92, 0.12);
}

/* ===== LOGIN POPUP ===== */
#login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 15, 0.95) 0%,
    rgba(15, 15, 30, 0.95) 100%
  );
  backdrop-filter: blur(20px);
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-box {
  background: linear-gradient(
    135deg,
    var(--bg-card) 0%,
    rgba(26, 26, 46, 0.9) 100%
  );
  padding: 50px 40px;
  border-radius: 24px;
  border: 2px solid var(--border-color);
  text-align: center;
  width: 380px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 100px var(--glow-blue);
  backdrop-filter: blur(20px);
  position: relative;
}

.login-box::before {
  content: "VN - DATA TEAM";
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  background: linear-gradient(
    135deg,
    var(--primary-blue),
    var(--accent-purple)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.8;
}

.login-box h2 {
  color: var(--text-primary);
  margin-bottom: 30px;
  font-size: 2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(
    135deg,
    var(--primary-blue),
    var(--accent-purple)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.input-group {
  margin-bottom: 20px;
}

.login-box input {
  width: 100%;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.1);
  color: white;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.login-box input:focus {
  outline: none;
  border-color: var(--primary-blue);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 20px var(--glow-blue);
}

.login-box input::placeholder {
  color: var(--text-muted);
}

.login-box button {
  width: 100%;
  padding: 16px;
  background: linear-gradient(
    135deg,
    var(--primary-blue) 0%,
    var(--primary-blue-dark) 100%
  );
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 800;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  transition: all 0.3s ease;
  box-shadow: 0 8px 24px var(--glow-blue);
  margin-top: 10px;
}

.login-box button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--glow-blue);
}

.login-box button:active {
  transform: translateY(0);
}

/* ===== LOADING OVERLAY ===== */
#loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-primary);
  font-size: calc(3rem * var(--scale));
  font-weight: 700;
  flex-direction: column;
  gap: calc(20px * var(--scale));
}

#loading-overlay::after {
  content: "";
  width: calc(60px * var(--scale));
  height: calc(60px * var(--scale));
  border: calc(6px * var(--scale)) solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.hidden {
  display: none !important;
}

/* ===== RESPONSIVE ADJUSTMENTS - OPTIMIZED ===== */
@media (max-width: 1024px) {
  .content {
    flex-direction: column;
  }

  .metric-value {
    font-size: calc(10rem * var(--scale));
  }

  .breakdown-label {
    font-size: calc(3.5rem * var(--scale));
  }

  .breakdown-number {
    font-size: calc(55px * var(--scale));
  }

  .breakdown-change {
    font-size: calc(50px * var(--scale));
  }
}

@media (max-height: 768px) {
  .header {
    height: 8%;
    min-height: calc(50px * var(--scale));
  }

  .metric-value {
    font-size: calc(10rem * var(--scale));
  }

  .breakdown-item {
    min-height: calc(210px * var(--scale)); /* Tăng lên */
    padding: calc(20px * var(--scale)) calc(25px * var(--scale));
  }

  .breakdown-label {
    font-size: calc(5rem * var(--scale)); /* 1/2 của 110px */
  }

  .breakdown-number {
    font-size: calc(5rem * var(--scale));
  }

  .breakdown-change {
    font-size: calc(5rem * var(--scale));
  }

  .main-metric {
    min-height: calc(150px * var(--scale));
    padding: calc(20px * var(--scale)) calc(15px * var(--scale));
  }

  .breakdown {
    gap: calc(18px * var(--scale));
  }
}

/* Tối ưu cho màn hình lớn (TV) */
@media (min-width: 1920px) {
  .breakdown-label {
    font-size: calc(70px * var(--scale));
  }

  .breakdown-number {
    font-size: calc(65px * var(--scale));
  }

  .breakdown-change {
    font-size: calc(60px * var(--scale));
  }
}

/* Tối ưu cho màn hình rất lớn (TV 4K) */
@media (min-width: 2560px) {
  .breakdown-label {
    font-size: calc(75px * var(--scale));
  }

  .breakdown-number {
    font-size: calc(70px * var(--scale));
  }

  .breakdown-change {
    font-size: calc(65px * var(--scale));
  }
}

/* Performance optimizations */
.slide,
.main-metric,
.breakdown-item {
  will-change: transform, opacity;
}

/* Smooth transitions for all interactive elements */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== CHRISTMAS SNOWFALL EFFECT ===== */
.snowflake {
  position: fixed;
  top: -10px;
  z-index: 9999;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1em;
  pointer-events: none;
  animation: snowfall linear infinite;
}

@keyframes snowfall {
  0% {
    transform: translateY(0) translateX(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) translateX(100px) rotate(360deg);
    opacity: 0.3;
  }
}

.snowflake:nth-child(1) {
  left: 10%;
  animation-duration: 10s;
  animation-delay: 0s;
}
.snowflake:nth-child(2) {
  left: 20%;
  animation-duration: 12s;
  animation-delay: 2s;
  font-size: 1.2em;
}
.snowflake:nth-child(3) {
  left: 30%;
  animation-duration: 8s;
  animation-delay: 4s;
  font-size: 0.8em;
}
.snowflake:nth-child(4) {
  left: 40%;
  animation-duration: 14s;
  animation-delay: 1s;
}
.snowflake:nth-child(5) {
  left: 50%;
  animation-duration: 11s;
  animation-delay: 3s;
  font-size: 1.1em;
}
.snowflake:nth-child(6) {
  left: 60%;
  animation-duration: 9s;
  animation-delay: 5s;
}
.snowflake:nth-child(7) {
  left: 70%;
  animation-duration: 13s;
  animation-delay: 2s;
  font-size: 0.9em;
}
.snowflake:nth-child(8) {
  left: 80%;
  animation-duration: 10s;
  animation-delay: 4s;
  font-size: 1.3em;
}
.snowflake:nth-child(9) {
  left: 90%;
  animation-duration: 12s;
  animation-delay: 1s;
}
.snowflake:nth-child(10) {
  left: 15%;
  animation-duration: 11s;
  animation-delay: 6s;
  font-size: 0.7em;
}
.snowflake:nth-child(11) {
  left: 25%;
  animation-duration: 9s;
  animation-delay: 3s;
}
.snowflake:nth-child(12) {
  left: 35%;
  animation-duration: 13s;
  animation-delay: 5s;
  font-size: 1.4em;
}
.snowflake:nth-child(13) {
  left: 45%;
  animation-duration: 10s;
  animation-delay: 2s;
}
.snowflake:nth-child(14) {
  left: 55%;
  animation-duration: 12s;
  animation-delay: 4s;
  font-size: 0.9em;
}
.snowflake:nth-child(15) {
  left: 65%;
  animation-duration: 8s;
  animation-delay: 1s;
}
.snowflake:nth-child(16) {
  left: 75%;
  animation-duration: 14s;
  animation-delay: 3s;
  font-size: 1.2em;
}
.snowflake:nth-child(17) {
  left: 85%;
  animation-duration: 11s;
  animation-delay: 5s;
}
.snowflake:nth-child(18) {
  left: 95%;
  animation-duration: 9s;
  animation-delay: 2s;
  font-size: 0.8em;
}
.snowflake:nth-child(19) {
  left: 5%;
  animation-duration: 13s;
  animation-delay: 4s;
}
.snowflake:nth-child(20) {
  left: 12%;
  animation-duration: 10s;
  animation-delay: 6s;
  font-size: 1.1em;
}

/* ===== CHRISTMAS HAT DECORATION ===== */
.header-title {
  background: linear-gradient(
    135deg,
    var(--primary-blue) 0%,
    var(--accent-purple) 100%
  );
  color: white;
  padding: calc(10px * var(--scale)) calc(28px * var(--scale));
  font-size: calc(4rem * var(--scale));
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: calc(2px * var(--scale));
  border-radius: calc(12px * var(--scale));
  box-shadow: 0 calc(4px * var(--scale)) calc(20px * var(--scale))
    var(--glow-blue);
  position: relative;
  overflow: visible;
}

/* Christmas Hat Container */
.header-title::after {
  content: "";
  position: absolute;
  top: calc(-45px * var(--scale));
  right: calc(-60px * var(--scale));
  width: calc(120px * var(--scale));
  height: calc(120px * var(--scale));
  background-image: url("https://png.pngtree.com/png-clipart/20220925/original/pngtree-santa-hat-cartoon-clipart-png-image_8631310.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  transform: rotate(15deg);
  animation: hatBounce 2s ease-in-out infinite;
  filter: drop-shadow(
    0 calc(4px * var(--scale)) calc(8px * var(--scale)) rgba(0, 0, 0, 0.3)
  );
  z-index: 10;
}

/* Bouncing Animation */
@keyframes hatBounce {
  0%,
  100% {
    transform: rotate(15deg) translateY(0);
  }
  50% {
    transform: rotate(15deg) translateY(calc(-8px * var(--scale)));
  }
}

/* Shimmer effect - keep original */
.header-title .shimmer {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shimmer 3s infinite;
}

/* Add sparkle effect around the hat */
.header-title {
  overflow: visible !important;
}

/* Optional: Add more Christmas decorations */
.christmas-sparkle {
  position: absolute;
  top: calc(-35px * var(--scale));
  right: calc(-5px * var(--scale));
  font-size: calc(2rem * var(--scale));
  animation: sparkle 1.5s ease-in-out infinite;
  z-index: 9;
}

@keyframes sparkle {
  0%,
  100% {
    opacity: 0;
    transform: scale(0.5) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(1.2) rotate(180deg);
  }
}