* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

button, a, input, .url-input, .btn-primary, .btn-secondary, .page-nav-btn {
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

button:focus, a:focus {
  outline: none;
}

:root {
  --color-primary: #FFDE59;
  --color-secondary: #000000;
  --color-bg: #F5F0E8;
  --color-accent: #FF5E5E;
  --border-width: 4px;
  --shadow-offset: 8px;
  --font-display: 'Archivo Black', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
}

html, body {
  width: 100%;
  overflow-x: hidden;
  height: 100%;
}

body {
  background-color: var(--color-bg);
  font-family: var(--font-body);
  color: var(--color-secondary);
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100' height='100' filter='url(%23n)'/%3E%3C/svg%3E");
}

.particle-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  border: 3px solid var(--color-secondary);
  opacity: 0.5;
}

.particle-circle {
  border-radius: 50%;
}

.particle-square {
  border-radius: 4px;
}

.particle-1 {
  width: 60px;
  height: 60px;
  top: 8%;
  left: 6%;
  background: var(--color-primary);
  transform: rotate(12deg);
}

.particle-2 {
  width: 36px;
  height: 36px;
  top: 18%;
  right: 10%;
  background: var(--color-accent);
}

.particle-3 {
  width: 90px;
  height: 90px;
  top: 42%;
  left: 2%;
  background: transparent;
  transform: rotate(-8deg);
}

.particle-4 {
  width: 44px;
  height: 44px;
  top: 65%;
  right: 6%;
  background: var(--color-primary);
  transform: rotate(20deg);
}

.particle-5 {
  width: 26px;
  height: 26px;
  top: 80%;
  left: 12%;
  background: var(--color-accent);
}

.particle-6 {
  width: 70px;
  height: 70px;
  top: 30%;
  right: 30%;
  background: transparent;
  transform: rotate(45deg);
}

@media (max-width: 600px) {
  .particle-layer {
    display: none;
  }
}

.site-header {
  position: relative;
  z-index: 2;
  border-bottom: var(--border-width) solid var(--color-secondary);
  background: var(--color-primary);
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 8px;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-family: var(--font-display);
  background: var(--color-secondary);
  color: var(--color-primary);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 20px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.5px;
}

.header-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  background: var(--color-secondary);
  color: var(--color-primary);
  padding: 6px 12px;
  border-radius: 6px;
}

.main-container {
  position: relative;
  z-index: 2;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 24px 80px;
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 768px) {
  .main-container {
    justify-content: flex-start;
  }
}

.hero-section {
  margin-bottom: 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 8vw, 56px);
  line-height: 1.05;
  letter-spacing: -1px;
}

.accent-dot {
  color: var(--color-accent);
}

.hero-desc {
  margin-top: 16px;
  font-size: 16px;
  max-width: 480px;
  line-height: 1.5;
  font-weight: 500;
  text-align: center;
}

.input-card, .detail-card, .result-card {
  background: #fff;
  border: var(--border-width) solid var(--color-secondary);
  border-radius: 16px;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--color-secondary);
  padding: 24px;
}

.input-section {
  margin-bottom: 32px;
}

.input-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}

.input-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.url-input {
  flex: 1 1 260px;
  padding: 14px 16px;
  border: var(--border-width) solid var(--color-secondary);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  background: var(--color-bg);
  outline: none;
  transition: transform 0.15s ease;
}

.url-input:focus {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--color-secondary);
}

.btn-primary, .btn-secondary {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.5px;
  border: var(--border-width) solid var(--color-secondary);
  border-radius: 10px;
  padding: 14px 24px;
  cursor: pointer;
  background: var(--color-primary);
  color: var(--color-secondary);
  box-shadow: 5px 5px 0 var(--color-secondary);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
}

.btn-primary:hover, .btn-secondary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--color-secondary);
}

.btn-primary:active, .btn-secondary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--color-secondary);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-loader {
  width: 16px;
  height: 16px;
  border: 3px solid var(--color-secondary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.error-message {
  margin-top: 12px;
  color: #B00020;
  font-weight: 700;
  font-size: 14px;
  background: #FFE5E5;
  border: 2px solid #B00020;
  border-radius: 8px;
  padding: 10px 14px;
}

.detail-section {
  margin-bottom: 32px;
}

.detail-header {
  font-family: var(--font-display);
  font-size: 16px;
  margin-bottom: 16px;
  border-bottom: 3px solid var(--color-secondary);
  padding-bottom: 10px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  opacity: 0.6;
}

.detail-value {
  font-size: 15px;
  font-weight: 700;
  word-break: break-word;
}

.result-section {
  margin-bottom: 32px;
}

.media-viewport {
  border: var(--border-width) solid var(--color-secondary);
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-secondary);
  position: relative;
}

.media-container {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.media-container img,
.media-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.pagination-controls {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.95);
  border: 3px solid var(--color-secondary);
  border-radius: 30px;
  padding: 6px 16px;
}

.page-nav-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: var(--color-secondary);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-indicator {
  font-weight: 700;
  font-size: 13px;
}

.action-row {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.action-row .btn-secondary {
  flex: 1 1 160px;
}

.site-footer {
  position: relative;
  z-index: 2;
  border-top: var(--border-width) solid var(--color-secondary);
  background: var(--color-primary);
  text-align: center;
  padding: 20px;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .header-inner {
    padding: 14px 16px;
    flex-wrap: nowrap;
    gap: 6px;
  }
  .logo-block {
    gap: 6px;
    flex-shrink: 0;
  }
  .logo-icon {
    padding: 6px 9px;
    font-size: 15px;
  }
  .logo-text {
    font-size: 17px;
  }
  .header-tag {
    font-size: 9px;
    letter-spacing: 0.8px;
    padding: 5px 8px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .main-container {
    padding: 28px 16px 60px;
  }
  .hero-title {
    font-size: clamp(28px, 10vw, 40px);
  }
  .hero-desc {
    max-width: 100%;
    font-size: 15px;
  }
  .input-card, .detail-card, .result-card {
    padding: 18px;
    border-radius: 12px;
  }
  .btn-primary, .btn-secondary {
    padding: 14px 18px;
    font-size: 13px;
  }
  .input-row {
    flex-direction: column;
  }
  .url-input {
    flex: 1 1 auto;
  }
  .detail-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}