:root {
  --emvn-blue: #28354b;
  --emvn-gold: #bb9a76;
  --emvn-offwhite: #efeeee;
  --emvn-white: #ffffff;
  --emvn-blue-2: #3d557f;
  --emvn-gray: #d6d3d0;
  --emvn-dark: #232628;
  --shadow-soft: 0 20px 45px rgba(35, 38, 40, 0.12);
  --shadow-card: 0 12px 30px rgba(40, 53, 75, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Montserrat", "Avenir Next", sans-serif;
  color: var(--emvn-dark);
  background: linear-gradient(135deg, #f8f6f3 0%, #eef1f5 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(0px);
  opacity: 0.6;
  z-index: 0;
}

.orb-1 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(187, 154, 118, 0.3) 0%, rgba(187, 154, 118, 0) 70%);
  top: -120px;
  right: -80px;
}

.orb-2 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(61, 85, 127, 0.25) 0%, rgba(61, 85, 127, 0) 70%);
  bottom: -200px;
  left: -120px;
}

.site-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 28px 6vw 8px;
  color: var(--emvn-blue);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 20px;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--emvn-blue-2);
}

.shell {
  position: relative;
  z-index: 1;
  padding: 20px 6vw 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 32px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(32px, 3.5vw, 46px);
  line-height: 1.1;
  color: var(--emvn-blue);
  margin-bottom: 16px;
}

.hero-copy h1 span {
  color: var(--emvn-gold);
  display: block;
  font-size: clamp(20px, 2.2vw, 28px);
  margin-top: 10px;
}

.hero-copy p {
  max-width: 540px;
  font-size: 16px;
  line-height: 1.6;
  color: #4d5258;
}

.hero-panel {
  background: var(--emvn-white);
  padding: 24px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(187, 154, 118, 0.2);
}

.hero-panel label {
  display: block;
  font-weight: 600;
  color: var(--emvn-blue);
  margin-bottom: 12px;
}

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

input[type="text"] {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(61, 85, 127, 0.25);
  font-size: 14px;
  outline: none;
}

input[type="text"]:focus {
  border-color: var(--emvn-blue);
  box-shadow: 0 0 0 3px rgba(61, 85, 127, 0.2);
}

button {
  border: none;
  background: var(--emvn-blue);
  color: var(--emvn-white);
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(40, 53, 75, 0.2);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

button.ghost {
  background: transparent;
  color: var(--emvn-blue);
  border: 1px solid rgba(61, 85, 127, 0.3);
  padding: 6px 12px;
  font-size: 12px;
}

.helper-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  font-size: 12px;
  color: #6a7076;
}

.helper-actions {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.helper-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.coming-soon {
  font-size: 10px;
  color: #9aa0a6;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.coming-soon.placeholder {
  visibility: hidden;
}

.results {
  margin-top: 36px;
  display: grid;
  gap: 24px;
  animation: fadeIn 0.5s ease;
}

.hidden {
  display: none;
}

.card {
  background: var(--emvn-white);
  border-radius: 16px;
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
}

.channel-card h2 {
  margin: 0;
  color: var(--emvn-blue);
}

.channel-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.channel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(187, 154, 118, 0.18);
  color: #5a4630;
  font-size: 11px;
  font-weight: 600;
}

#channel-meta {
  margin: 8px 0 0;
  font-size: 13px;
  color: #6b7178;
}

.muted {
  color: #4f555b;
  margin-top: 16px;
  line-height: 1.5;
}

.stats-grid,
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.analysis-card h4 {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--emvn-blue);
}

.analysis-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.analysis-status {
  font-size: 12px;
  color: #7a7f84;
}

.analysis-columns {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.analysis-list {
  margin: 0;
  padding-left: 18px;
  color: #4f555b;
  font-size: 13px;
  line-height: 1.5;
}

.analysis-formula {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.analysis-formula span {
  display: block;
  font-size: 12px;
  color: #6a7076;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.analysis-formula p {
  margin: 0;
  font-size: 14px;
  color: var(--emvn-blue);
  font-weight: 600;
}

.stat {
  background: #f7f4f1;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(187, 154, 118, 0.15);
}

.stat span {
  display: block;
  font-size: 12px;
  color: #6a7076;
}

.stat strong {
  display: block;
  font-size: 16px;
  color: var(--emvn-blue);
  margin-top: 6px;
}

.video-section {
  display: grid;
  gap: 12px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.section-note {
  font-size: 12px;
  color: #7a7f84;
}

.filter-group {
  display: flex;
  gap: 8px;
  background: rgba(61, 85, 127, 0.08);
  padding: 6px;
  border-radius: 999px;
}

.filter-btn {
  background: transparent;
  border: none;
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--emvn-blue);
  font-weight: 600;
  transition: all 0.2s ease;
}

.filter-btn.active {
  background: var(--emvn-blue);
  color: var(--emvn-white);
  box-shadow: 0 6px 12px rgba(40, 53, 75, 0.2);
}

.filter-btn:hover {
  transform: translateY(-1px);
}

@media (max-width: 700px) {
  .filter-group {
    margin-top: 8px;
  }
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.video-card {
  background: var(--emvn-white);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(40, 53, 75, 0.1);
  display: flex;
  flex-direction: column;
  min-height: 260px;
}

.video-thumb {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: #e3e3e3;
}

.video-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--emvn-blue);
  line-height: 1.3;
}

.video-meta {
  font-size: 12px;
  color: #6a7076;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.video-desc {
  font-size: 12px;
  color: #4f555b;
  line-height: 1.4;
  flex: 1;
}

.video-link {
  color: var(--emvn-blue-2);
  font-size: 12px;
  text-decoration: none;
  font-weight: 600;
}

.site-footer {
  padding: 30px 6vw 40px;
  color: #7a7f84;
  text-align: center;
  font-size: 12px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .brand-subtitle {
    display: none;
  }
}

@media (max-width: 600px) {
  .input-row {
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .channel-header {
    flex-direction: column;
  }
}