*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

@font-face {
  font-family: 'Neo';
  src: url('../assets/Neo.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  --white: #ffffff;
  --silver: #c8d0dc;
  --dim: #7a8494;
  --bg: #080808;
  --card: rgba(255,255,255,0.045);
  --border: rgba(255,255,255,0.11);
  --accent: rgba(255,255,255,0.85);
  --glow: rgba(255,255,255,0.15);
  --glass-bg: rgba(255,255,255,0.04);
  --glass-bg-hover: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.12);
  --glass-border-hover: rgba(255,255,255,0.22);
  --glass-shine: rgba(255,255,255,0.18);
  --glow-soft: 0 0 40px rgba(255,255,255,0.06);
  --glow-mid: 0 0 60px rgba(255,255,255,0.09);
  --glow-strong: 0 0 80px rgba(255,255,255,0.14);
  --glow-btn: 0 0 32px rgba(255,255,255,0.22), 0 8px 32px rgba(255,255,255,0.12);
}

html {
  color-scheme: dark;
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px 100px;
  position: relative;
  overflow-x: hidden;
  overflow-y: auto;
}

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.ambient::before {
  display: none;
}

.sparkles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.spark {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  will-change: opacity, transform;
  animation: sparkle var(--dur, 6s) ease-in-out infinite var(--delay, 0s);
}
.spark::before {
  content: '✦';
  position: absolute;
  top: -6px;
  left: -6px;
  font-size: var(--sz, 14px);
  color: white;
  opacity: inherit;
  will-change: opacity;
}
@keyframes sparkle {
  0%   { opacity: 0;   transform: scale(0.4) rotate(0deg); }
  20%  { opacity: 0;   transform: scale(0.5) rotate(10deg); }
  50%  { opacity: 0.55; transform: scale(1)   rotate(20deg); }
  80%  { opacity: 0;   transform: scale(0.5) rotate(30deg); }
  100% { opacity: 0;   transform: scale(0.4) rotate(40deg); }
}

.container {
  width: 100%;
  max-width: 560px;
  position: relative;
  z-index: 1;
  overflow-x: clip;
}

.header {
  text-align: center;
  margin-bottom: 40px;
}

.brand-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 24px;
  opacity: 0;
  animation: labelIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.30s forwards;
}
.brand-label::before,
.brand-label::after {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: rgba(255,255,255,0.15);
}

@keyframes labelIn {
  from { opacity: 0; letter-spacing: 10px; }
  to   { opacity: 1; letter-spacing: 6px; }
}

.title-wrap {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}

.h1-top {
  font-family: 'Neo';
  font-size: clamp(2rem, 4.5vw, 1.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.5;
  display: flex;
  justify-content: center;
  letter-spacing: 0.5px;
  overflow: visible;
  padding: 0 0 4px 0;
}

.h1-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px) rotate(6deg);
  animation: charIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  padding: 0 1px;
}

@keyframes charIn {
  to { opacity: 1; transform: translateY(0) rotate(0deg); }
}

.h1-pill-wrap {
  display: flex;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8) translateY(10px);
  animation: pillIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.75s forwards;
}

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

.h1-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-size: clamp(1rem, 4vw, 1.35rem);
  font-weight: 700;
  color: rgba(255,255,255,0.75);
  letter-spacing: 1px;
  line-height: 1;
  background: linear-gradient(135deg, rgba(255,255,255,0.09) 0%, rgba(255,255,255,0.04) 100%);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  padding: 8px 20px;
  position: relative;
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  text-transform: uppercase;
}

.h1-pill svg { opacity: 0.6; }

.h1-pill::before {
  content: '';
  position: absolute;
  top: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.h1-pill::after {
  display: none;
}

.subtitle {
  margin-top: 22px;
  font-size: 0.82rem;
  color: var(--dim);
  letter-spacing: 1px;
  opacity: 0;
  animation: riseUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
}

.title-sep {
  width: 1px;
  height: 18px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.2), transparent);
}

.card {
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.055) 0%,
    rgba(255,255,255,0.025) 50%,
    rgba(255,255,255,0.04) 100%
  );
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  backdrop-filter: blur(10px) saturate(1.3);
  -webkit-backdrop-filter: blur(10px) saturate(1.3);
  position: relative;
  overflow: hidden;
  transform: translateZ(0);
  will-change: transform;
  transition: border-color 0.35s ease;
}
.card:hover {
  border-color: rgba(255,255,255,0.18);
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  pointer-events: none;
}
.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
  pointer-events: none;
}

.info-card {
  margin-bottom: 14px;
  opacity: 0;
  animation: riseUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.25s forwards;
}

.info-toggle {
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  letter-spacing: 0.3px;
  backdrop-filter: none;
  box-shadow: none;
}

.info-toggle:hover {
  background: transparent;
  border: none;
  box-shadow: none;
  color: var(--white);
}

.chevron {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.5;
  flex-shrink: 0;
}
.info-toggle.open .chevron { transform: rotate(180deg); }

.info-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  border-top: 0px solid var(--border);
}
.info-body.open {
  grid-template-rows: 1fr;
  border-top: 1px solid var(--border);
}
.info-inner {
  min-height: 0;
  overflow: hidden;
}

.info-content {
  padding: 0 20px 20px;
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin-bottom: 18px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--silver);
}

.feature-list li::before {
  content: '';
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.04) 100%);
  border: 1px solid rgba(255,255,255,0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='white' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='2,6 5,9 10,3'/%3E%3C/svg%3E");
  background-size: 10px;
  background-repeat: no-repeat;
  background-position: center;
  box-shadow: none;
}

.tutorial-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, rgba(255,255,255,0.07) 0%, rgba(255,255,255,0.03) 100%);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  color: var(--silver);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.3px;
  backdrop-filter: blur(8px);
}

.tutorial-btn:hover {
  background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.06) 100%);
  border-color: rgba(255,255,255,0.26);
  color: white;
}

.tutorial-chevron {
  margin-left: auto;
  opacity: 0.5;
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.tutorial-btn.open .tutorial-chevron { transform: rotate(180deg); }

.tutorial-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}
.tutorial-body.open { grid-template-rows: 1fr; }
.tutorial-inner {
  min-height: 0;
  overflow: hidden;
}

.tutorial-video-wrap {
  display: flex;
  justify-content: center;
  padding: 14px 20px 20px;
}

.tutorial-video {
  width: auto;
  height: auto;
  max-width: 100%;
  aspect-ratio: 9 / 20.5;
  max-height: 70vh;
  border-radius: 14px;
  background: #000;
  display: block;
  object-fit: cover;
}

.tutorial-card {
  margin-bottom: 14px;
  opacity: 0;
  animation: riseUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.32s forwards;
}

.tutorial-card .tutorial-btn {
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  letter-spacing: 0.3px;
  backdrop-filter: none;
  box-shadow: none;
}

.tutorial-card .tutorial-btn:hover {
  background: transparent;
  border: none;
  box-shadow: none;
  color: var(--white);
}

.tutorial-card .tutorial-body {
  border-top: 1px solid var(--border);
}

.upload-card {
  margin-bottom: 14px;
  opacity: 0;
  animation: riseUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.38s forwards;
}

.file-input-wrapper {
  position: relative;
  width: 100%;
}
.file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.file-drop-zone {
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.upload-icon-wrap {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.04) 100%);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--silver);
  transition: all 0.3s ease;
  animation: float 3s ease-in-out infinite;
  backdrop-filter: blur(8px);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.file-drop-zone:hover .upload-icon-wrap {
  background: linear-gradient(135deg, rgba(255,255,255,0.16) 0%, rgba(255,255,255,0.07) 100%);
  border-color: rgba(255,255,255,0.32);
  color: white;
}

.file-drop-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--silver);
}
.file-drop-hint {
  font-size: 0.75rem;
  color: var(--dim);
}

.file-info {
  display: none;
  padding: 16px 20px;
  font-size: 0.85rem;
  color: var(--silver);
  border-top: 1px solid var(--border);
}
.file-info.show { display: block; animation: fadeIn 0.4s ease; }
.file-info strong { color: white; font-weight: 600; }

.process-wrap {
  opacity: 0;
  animation: riseUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.62s forwards;
}

.process-button {
  width: 100%;
  padding: 18px;
  background: linear-gradient(135deg, rgba(255,255,255,0.97) 0%, rgba(230,235,255,0.95) 100%);
  color: #080808;
  border: none;
  border-radius: 16px;
  font-family: 'DM Sans';
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.process-button span { position: relative; z-index: 1; }

.process-button:disabled {
  background: rgba(255,255,255,0.08);
  color: var(--dim);
  cursor: not-allowed;
  box-shadow: none;
}

.process-button:hover:not(:disabled) {
  transform: translateY(-2px);
}

.process-button:active:not(:disabled) {
  animation: btn-bounce 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes btn-bounce {
  0%   { transform: scale(1); }
  30%  { transform: scale(0.94); }
  60%  { transform: scale(1.04); }
  100% { transform: scale(1); }
}

.process-button.processing {
  background: rgba(255,255,255,0.9);
  animation: pulse-btn 1.5s ease-in-out infinite;
}

@keyframes pulse-btn {
  0%, 100% {}
  50% {}
}

@keyframes sheen {
  0%   { transform: translateX(-120%) skewX(-20deg); }
  100% { transform: translateX(220%) skewX(-20deg); }
}

.process-button:not(:disabled)::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  animation: sheen 3.5s ease-in-out 1.5s infinite;
  pointer-events: none;
}

#status {
  margin-top: 14px;
  font-size: 0.83rem;
  text-align: center;
  color: var(--dim);
  font-weight: 500;
  min-height: 20px;
}

#status:not(:empty) { animation: fadeIn 0.4s ease; }

.di-wrap {
  position: sticky;
  top: 16px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  z-index: 200;
  pointer-events: none;
  margin-bottom: 16px;
}

.di-island {
  pointer-events: all;
  background: #080808;
  border-radius: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  position: relative;
  width: 36px;
  height: 36px;
  padding: 0;
  opacity: 0;
  border: 1px solid rgba(255,255,255,0.15);
  transition:
    width         0.52s cubic-bezier(0.34, 1.3, 0.64, 1),
    height        0.42s cubic-bezier(0.34, 1.4, 0.64, 1),
    border-radius 0.4s  cubic-bezier(0.4, 0, 0.2, 1),
    padding       0.45s cubic-bezier(0.4, 0, 0.2, 1),
    opacity       0.45s ease;
  will-change: width, height, border-radius, opacity;
  transform: translateZ(0);
}

.di-island::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  opacity: 0;
  background: transparent;
  box-shadow: none;
  transition: opacity 0.4s ease 0.15s;
  pointer-events: none;
}
.di-island.phase-expanded::before {
  opacity: 1;
}

.di-island::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: transparent;
}

.di-island.phase-compact {
  width: 120px;
  height: 36px;
  padding: 0 12px;
  border-radius: 50px;
  justify-content: flex-start;
  opacity: 1;
}
.di-island.phase-compact:hover {
  width: 138px;
}

.di-island.phase-expanded {
  width: 280px;
  height: 72px;
  padding: 0 18px;
  border-radius: 24px;
  justify-content: flex-start;
  opacity: 1;
}

.di-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin: 0;
  border-radius: 0;
  background: transparent;
  transition:
    width         0.42s cubic-bezier(0.34, 1.3, 0.64, 1),
    height        0.42s cubic-bezier(0.34, 1.3, 0.64, 1),
    border-radius 0.38s cubic-bezier(0.4, 0, 0.2, 1),
    background    0.3s  ease,
    transform     0.3s  cubic-bezier(0.34, 1.4, 0.64, 1);
}
.di-island.phase-expanded .di-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.07);
  border-radius: 14px;
  transform: scale(1);
}

.di-island.phase-expanded .di-icon svg {
  animation: di-icon-pop 0.38s cubic-bezier(0.34, 1.6, 0.64, 1) 0.12s both;
}
@keyframes di-icon-pop {
  0%   { transform: scale(0.7); opacity: 0.5; }
  100% { transform: scale(1);   opacity: 1; }
}

.di-label {
  overflow: hidden;
  white-space: nowrap;
  max-width: 0;
  opacity: 0;
  margin-left: 0;
  transform: translateX(-6px);
  transition:
    max-width   0.4s  cubic-bezier(0.4, 0, 0.2, 1) 0.08s,
    opacity     0.28s ease 0.14s,
    margin-left 0.4s  cubic-bezier(0.4, 0, 0.2, 1) 0.08s,
    transform   0.35s cubic-bezier(0.34, 1.2, 0.64, 1) 0.1s;
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.di-island.phase-compact .di-label {
  max-width: 100px;
  opacity: 1;
  margin-left: 8px;
  transform: translateX(0);
}
.di-island.phase-expanded .di-label {
  max-width: 0;
  opacity: 0;
  margin-left: 0;
  transform: translateX(-6px);
}

.di-expanded-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  margin-left: 0;
  transform: translateX(-8px);
  transition:
    max-width   0.45s cubic-bezier(0.4, 0, 0.2, 1) 0.14s,
    opacity     0.32s ease 0.22s,
    margin-left 0.42s cubic-bezier(0.4, 0, 0.2, 1) 0.14s,
    transform   0.38s cubic-bezier(0.34, 1.2, 0.64, 1) 0.18s;
}
.di-island.phase-expanded .di-expanded-content {
  max-width: 200px;
  opacity: 1;
  margin-left: 12px;
  transform: translateX(0);
}

.di-expanded-title {
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
}
.di-expanded-sub {
  color: rgba(255,255,255,0.45);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
  margin-top: 2px;
}

@keyframes di-entrance {
  0%   { opacity: 0; transform: scale(0.82) translateZ(0); }
  60%  { opacity: 1; transform: scale(1.04) translateZ(0); }
  80%  { transform: scale(0.98) translateZ(0); }
  100% { opacity: 1; transform: scale(1) translateZ(0); }
}
.di-island.di-enter {
  animation: di-entrance 0.65s cubic-bezier(0.34, 1.2, 0.64, 1) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes riseUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.tutorial-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 20px 20px;
}

.tutorial-link-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid #ffffff;
  border-radius: 12px;
  color: #000000;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s ease, opacity 0.25s ease;
}

.tutorial-link-item svg {
  stroke: #000000;
}

.tutorial-link-item:hover {
  background: rgba(255,255,255,0.88);
  opacity: 0.9;
}

.link-arrow {
  margin-left: 4px;
  opacity: 0.6;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.34, 1.4, 0.64, 1), opacity 0.25s ease;
}

.tutorial-link-item:hover .link-arrow {
  transform: translateX(4px);
  opacity: 1;
}

@media (max-width: 480px) {
  h1 { font-size: 2.4rem; }
  .fps-badge { top: 16px; right: 16px; font-size: 1.3rem; }
}

.social-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
  flex-wrap: wrap;
  opacity: 0;
  animation: riseUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.75s forwards;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 50px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.25s cubic-bezier(0.34,1.4,0.64,1);
  position: relative;
  overflow: hidden;
}

.social-btn::before {
  content: '';
  position: absolute;
  top: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  pointer-events: none;
}

.social-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.22);
  color: #fff;
}

.social-btn--tiktok:hover {
  background: rgba(255,255,255,0.1);
}

.social-btn--whatsapp:hover {
  background: rgba(37,211,102,0.12);
  border-color: rgba(37,211,102,0.35);
  color: #25d366;
}
.social-btn--whatsapp:hover svg {
  fill: #25d366;
}

.social-btn--donation:hover {
  background: rgba(255,100,130,0.12);
  border-color: rgba(255,100,130,0.35);
  color: #ff6482;
}
.social-btn--donation:hover svg {
  stroke: #ff6482;
}

.itsscale-card {
  padding: 16px 18px;
  margin-bottom: 12px;
  opacity: 0;
  animation: riseUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.35s forwards;
}

.itsscale-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.itsscale-toggle-info {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 8px;
  overflow: hidden;
}

.itsscale-toggle-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.1px;
}

.itsscale-toggle-sub {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: #25d366;
  letter-spacing: 0.1px;
  transition: color 0.25s ease;
  display: inline-block;
  overflow: hidden;
  line-height: 1.4;
}

.itsscale-toggle-sub.manual {
  color: rgba(255,200,50,0.9);
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
  cursor: pointer;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.switch-track {
  position: absolute;
  inset: 0;
  border-radius: 50px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.switch input:checked + .switch-track {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.4);
}

.switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(255,255,255,0.45);
  transition: transform 0.25s cubic-bezier(0.16,1,0.3,1), background 0.25s ease;
}

.switch input:checked + .switch-track .switch-thumb {
  transform: translateX(20px);
  background: #fff;
}

.itsscale-manual-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s cubic-bezier(0.16,1,0.3,1),
              margin-top 0.35s cubic-bezier(0.16,1,0.3,1);
  margin-top: 0;
}

.itsscale-manual-body.open {
  grid-template-rows: 1fr;
  margin-top: 14px;
}

.itsscale-manual-options {
  overflow: hidden;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

@keyframes itsscaleBtnIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.itsscale-manual-body.open .itsscale-btn {
  animation: itsscaleBtnIn 0.35s cubic-bezier(0.16,1,0.3,1) both;
}
.itsscale-manual-body.open .itsscale-btn:nth-child(1) { animation-delay: 0.04s; }
.itsscale-manual-body.open .itsscale-btn:nth-child(2) { animation-delay: 0.09s; }
.itsscale-manual-body.open .itsscale-btn:nth-child(3) { animation-delay: 0.14s; }
.itsscale-manual-body.open .itsscale-btn:nth-child(4) { animation-delay: 0.19s; }

.itsscale-btn {
  flex: 1;
  min-width: 60px;
  padding: 9px 8px 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  color: rgba(255,255,255,0.55);
  text-align: center;
  transition: all 0.2s cubic-bezier(0.16,1,0.3,1);
  line-height: 1.3;
}

.itsscale-btn span {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: #ffffff;
  margin-top: 2px;
  letter-spacing: 0.2px;
}

.itsscale-btn:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.85);
}

.itsscale-btn.active {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.45);
  color: #fff;
}

.itsscale-btn.active span {
  color: rgba(255,255,255,0.55);
}