*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #ff5c00;
  --color-primary-light: #ff8c4a;
  --color-primary-dark: #c43e00;
  --color-primary-tint: #fff0e6;

  --color-bg: #fffaf7;
  --color-surface: #fff4ed;
  --color-border: #ffe0cc;
  --color-elevated: #f7ece5;

  --color-text: #1a1208;
  --color-text-muted: #6b5c52;

  --color-green-tint: #f0fdf4;
  --color-green-accent: #bbf7d0;
  --color-green-primary: #16a34a;

  --color-blue: #a5b4fc;
  --color-red: #ff0000;

  --font-primary: "JetBrains Mono", sans-serif;
  --font-secondary: "Sora", sans-serif;
}

[data-theme="dark"] {
  --color-primary: #ff7a2e; /* slightly lighter for contrast */
  --color-primary-light: #ffa06a;
  --color-primary-dark: #e05500;
  --color-primary-tint: #2e1a0e;

  --color-bg: #121212;
  --color-surface: #2c2c2c;
  --color-border: #333333;
  --color-elevated: #555555;

  --color-text: #f5e6d8; /* warm white, not pure white */
  --color-text-muted: #a08070;

  --color-green-tint: #0d2b1a;
  --color-green-accent: #166534;
  --color-green-primary: #4ade80;
}

body {
  font-family: var(--font-primary);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;

  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

/* ── NAV ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 14px 48px;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  backdrop-filter: blur(8px);
  z-index: 100;
}
.nav-left {
  display: flex;
  gap: 15px;
  align-items: center;
}
.nav-logo {
  font-family: var(--font-secondary);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-text);
  text-decoration: none;
}
.nav-logo span {
  color: var(--color-primary);
}
.nav-ctas {
  display: flex;
  gap: 10px;
  align-items: center;
}
.btn-primary {
  font-size: 14px;
  padding: 8px 18px;
  background: var(--color-primary);
  color: var(--color-text);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-primary);
  font-weight: 500;
  transition: background 0.15s;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
}
.toggle-track {
  position: relative;
  width: 56px;
  height: 30px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.3s;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.toggle-track.dark {
  background: var(--color-surface);
  border-color: rgba(255, 255, 255, 0.12);
}
.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-elevated);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition:
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 13px;
}
.toggle-track.dark .toggle-thumb {
  transform: translateX(26px);
  background: var(--color-elevated);
  color: var(--color-blue);
}

/* ── HERO ── */
.hero {
  padding: 80px 48px 64px;
  text-align: center;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
#tw {
  display: inline-block;
}
.cursor {
  display: inline-block;
  width: 4px;
  margin-left: 6px;
  height: 1.2em;
  background: var(--color-primary);
  vertical-align: text-bottom;
  animation: blink 0.75s step-end infinite;
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-green-tint);
  border: 1px solid var(--color-green-accent);
  color: var(--color-green-primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 28px;
}
.hero-badge i {
  font-size: 14px;
}
h1 {
  font-family: var(--font-secondary);
  font-size: 56px;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -1.8px;
  margin-bottom: 22px;
  color: var(--color-text);
}
h1 .highlight {
  color: var(--color-primary);
}
h2 {
  font-family: var(--font-secondary);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.9px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.hero-sub-container {
  margin: 0 auto 40px;
}
.hero-sub {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 560px;
  font-weight: 400;
}
.hero-input-row {
  display: flex;
  gap: 10px;
  max-width: 580px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 2.5px solid var(--color-border);
  border-radius: 12px;
  padding: 6px 6px 6px 18px;
  align-items: center;
  width: 100%;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
.hero-input-row:focus-within {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 2px rgba(59, 109, 17, 0.15);
}
.hero-input-row input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 16px;
  font-family: var(--font-primary);
  outline: none;
  color: var(--color-text);
}
.hero-input-row.invalid {
  border: 3px solid var(--color-red);
  transition: border-color 0.1s;
}
.hint {
  display: block;
  font-size: 0.85em;
  color: var(--color-red);
  margin-top: 4px;
  min-height: 1em;
}
.hero-input-row input::placeholder {
  color: var(--color-text-muted);
}
.hero-input-row button {
  background: var(--color-primary);
  color: var(--color-text);
  border: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font-primary);
  white-space: nowrap;
  transition: background 0.15s;
  display: flex;
}
.hero-input-row button:hover {
  background: var(--color-primary-dark);
}
#spinner.active {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: var(--color-bg);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.short-result {
  display: none;
  margin: 14px auto 0;
  background: var(--color-bg);
  border: 1px solid var(--color-primary-dark);
  border-radius: 10px;
  padding: 12px 18px;
  max-width: 580px;
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 25px;
}
.short-result.show {
  display: flex;
}
.qr-result {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
}
.qr-result button {
  background: var(--color-primary);
  color: var(--color-text);
  border: none;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font-primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: background 0.15s;
}
.qr-result button:hover {
  background: var(--color-primary-dark);
}
#qr-img {
  display: none;
  height: 200px;
  width: 200px;

  /* padding: 2px; */
  /* border: 3px solid #f97316; */
  /* border-radius: 20px; */
  /* background: #ffffff; */
  /* box-shadow: 0 4px 16px rgba(249, 115, 22, 0.18); */

  padding: 10px;
  border: 3px solid var(--color-primary);
  border-radius: 24px;
  outline: 6px solid rgba(249, 115, 22, 0.15);
  outline-offset: 4px;
  background: var(--color-bg);
}
.shine-image {
  position: relative;
  display: inline-block;
  overflow: hidden;
  border-radius: 25px;
}

.shine-image::before {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.6) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-20deg);
  z-index: 1;
  transition: none;
}

.shine-image:hover::before {
  animation: shine 0.6s ease-in-out;
}

@keyframes shine {
  0% {
    left: -75%;
  }
  100% {
    left: 125%;
  }
}
.copy-btn {
  background: var(--color-primary);
  color: var(--color-text);
  border: none;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  cursor: pointer;
  font-family: var(--font-primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: background 0.15s;
}
.copy-btn:hover {
  background: var(--color-primary-dark);
}

/* ── FOOTER ── */
footer {
  padding: 32px 48px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-secondary);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}
.footer-logo span {
  color: var(--color-primary);
}
.footer-link {
  text-decoration: none;
  color: var(--color-primary-dark);
}

.footer-middle {
  font-size: 13px;
  color: var(--color-text-muted);
}
.footer-right {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav {
    padding: 12px 20px;
  }
  .nav-links {
    display: none;
  }
  .hero {
    padding: 48px 20px 40px;
  }
  h1 {
    font-size: 36px;
    height: 160px;
  }
  footer {
    padding: 24px 20px;
    flex-direction: column;
    align-items: flex-start;
  }
}