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

:root {
  color-scheme: dark;
  --bg: #05070d;
  --bg-soft: #0c1120;
  --card: rgba(14, 20, 37, 0.8);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #f5f7ff;
  --muted: #9aa3c7;
  --accent: #5ee6ff;
  --accent-strong: #3ab3ff;
  --accent-alt: #9b7bff;
  --success: #2de68b;
  --danger: #ff5e79;
  --shadow: 0 30px 80px rgba(5, 7, 13, 0.6);
}

body {
  margin: 0;
  font-family: "Space Grotesk", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top, #0b1230, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
}

.bg-orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  z-index: -2;
}

.orb-left {
  background: rgba(94, 230, 255, 0.35);
  top: -120px;
  left: -80px;
}

.orb-right {
  background: rgba(155, 123, 255, 0.3);
  bottom: -120px;
  right: -80px;
}

.noise-layer {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: -1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 8vw 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 58px;
  width: auto;
  display: block;
  filter: drop-shadow(0 8px 18px rgba(32, 180, 255, 0.35));
}

.pill {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(
    135deg,
    rgba(94, 230, 255, 0.18),
    rgba(155, 123, 255, 0.18)
  );
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-home-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(8, 13, 25, 0.55);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.nav-home-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(127, 189, 239, 0.55);
  background: rgba(10, 15, 29, 0.85);
}

.nav-home-btn:focus-visible {
  outline: 2px solid rgba(127, 189, 239, 0.8);
  outline-offset: 2px;
}

main {
  padding: 20px 8vw 60px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  align-items: center;
  padding: 28px 0 20px;
}

h1 {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  margin: 0 0 20px;
}

h1 .accent {
  color: #7fbdef;
  text-shadow: 0 12px 32px rgba(127, 189, 239, 0.28);
}

.subhead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 28px;
}

.cta-line {
  margin: 0 0 18px;
  font-weight: 600;
  color: var(--text);
}

.cta-line a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(94, 230, 255, 0.4);
}

.cta-line a:hover {
  color: #7fbdef;
  border-color: rgba(127, 189, 239, 0.7);
}

.voice-visual {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 46px;
  margin-bottom: 22px;
}

.voice-visual span {
  width: 6px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), var(--accent-alt));
  animation: voicePulse 1.6s ease-in-out infinite;
  opacity: 0.85;
}

.voice-visual span:nth-child(1) { height: 12px; animation-delay: 0s; }
.voice-visual span:nth-child(2) { height: 20px; animation-delay: 0.1s; }
.voice-visual span:nth-child(3) { height: 28px; animation-delay: 0.2s; }
.voice-visual span:nth-child(4) { height: 18px; animation-delay: 0.3s; }
.voice-visual span:nth-child(5) { height: 34px; animation-delay: 0.4s; }
.voice-visual span:nth-child(6) { height: 24px; animation-delay: 0.5s; }
.voice-visual span:nth-child(7) { height: 38px; animation-delay: 0.6s; }
.voice-visual span:nth-child(8) { height: 22px; animation-delay: 0.7s; }
.voice-visual span:nth-child(9) { height: 30px; animation-delay: 0.8s; }
.voice-visual span:nth-child(10) { height: 16px; animation-delay: 0.9s; }
.voice-visual span:nth-child(11) { height: 26px; animation-delay: 1s; }
.voice-visual span:nth-child(12) { height: 14px; animation-delay: 1.1s; }

@keyframes voicePulse {
  0%,
  100% {
    transform: scaleY(0.6);
    opacity: 0.6;
  }
  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.btn {
  border-radius: 999px;
  padding: 12px 22px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  transition: 0.2s ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent-alt));
  color: #05070d;
  box-shadow: 0 12px 30px rgba(58, 179, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.btn.primary.hello-cta {
  animation: helloPulse 2.8s ease-in-out infinite;
}

.btn.primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(58, 179, 255, 0.45);
}

.btn.primary.hello-cta::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.35),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn.primary.hello-cta:hover::after {
  opacity: 1;
}

@keyframes helloPulse {
  0%,
  100% {
    box-shadow: 0 12px 30px rgba(58, 179, 255, 0.25);
    transform: translateY(0) rotate(0deg);
  }
  35% {
    box-shadow: 0 18px 44px rgba(94, 230, 255, 0.5);
    transform: translateY(-1px) rotate(-0.6deg);
  }
  70% {
    box-shadow: 0 16px 36px rgba(94, 230, 255, 0.4);
    transform: translateY(-0.5px) rotate(0.6deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn.primary.hello-cta {
    animation: none;
  }
  .voice-visual span {
    animation: none;
  }
}

.btn.ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 10px rgba(255, 94, 121, 0.6);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.stats > div {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(11, 16, 30, 0.7);
}

.stat-label {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
}

.stat-value {
  margin: 4px 0 0;
  font-weight: 600;
  font-size: 1.08rem;
}

.hero-panel {
  display: flex;
  justify-content: flex-end;
}

.assessment {
  margin-top: 40px;
  position: relative;
}

.assessment-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  position: relative;
  overflow: hidden;
}

.assessment-orb {
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.6;
  z-index: -1;
  animation: orbFloat 7s ease-in-out infinite;
}

.assessment-orb.orb-top {
  top: -80px;
  right: 20%;
  background: rgba(127, 189, 239, 0.4);
}

.assessment-orb.orb-bottom {
  bottom: -90px;
  left: 20%;
  background: rgba(155, 123, 255, 0.35);
  animation-delay: 1.8s;
}

@keyframes orbFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

.assessment-banner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(127, 189, 239, 0.18);
  color: #d7ecff;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(127, 189, 239, 0.25);
  animation: bannerGlow 2.6s ease-in-out infinite;
}

.assessment-copy h2 {
  margin: 10px 0 12px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.assessment-copy p {
  margin: 0 0 18px;
  color: var(--muted);
}


.assessment-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.assessment-highlights div {
  padding: 12px;
  border-radius: 16px;
  background: rgba(10, 15, 29, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  color: var(--muted);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.assessment-highlights div:hover {
  transform: translateY(-3px);
  border-color: rgba(127, 189, 239, 0.5);
}

.assessment-highlights span {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

@keyframes bannerGlow {
  0%,
  100% {
    box-shadow: 0 8px 20px rgba(127, 189, 239, 0.25);
  }
  50% {
    box-shadow: 0 12px 28px rgba(127, 189, 239, 0.45);
  }
}

.spark {
  font-size: 0.95rem;
  color: #7fbdef;
  animation: sparkTwinkle 1.6s ease-in-out infinite;
}

.spark:last-child {
  animation-delay: 0.8s;
}

@keyframes sparkTwinkle {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

.free-shake {
  display: inline-block;
  color: #ffd36c;
  animation: freeShake 1.8s ease-in-out infinite;
}

@keyframes freeShake {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  20% {
    transform: translateY(-1px) rotate(-1deg);
  }
  40% {
    transform: translateY(1px) rotate(1deg);
  }
  60% {
    transform: translateY(-0.5px) rotate(-0.6deg);
  }
  80% {
    transform: translateY(0.5px) rotate(0.6deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .free-shake {
    animation: none;
  }
}
.assessment-form {
  display: grid;
  gap: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-grid label {
  display: grid;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.form-grid label.full {
  grid-column: span 2;
}

.form-grid input,
.form-grid select {
  background: rgba(8, 13, 25, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}

.form-grid input:focus,
.form-grid select:focus {
  outline: none;
  border-color: rgba(127, 189, 239, 0.8);
  box-shadow: 0 0 0 2px rgba(127, 189, 239, 0.15);
}

.assessment-form .btn.primary {
  width: fit-content;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.form-status {
  min-height: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-status.success {
  color: var(--success);
}

.form-status.error {
  color: var(--danger);
}

.panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.panel-title {
  margin: 0;
  font-weight: 600;
}

.panel-subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.panel-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(127, 189, 239, 0.35);
  background: linear-gradient(
    135deg,
    rgba(127, 189, 239, 0.14),
    rgba(155, 123, 255, 0.1)
  );
  color: rgba(245, 247, 255, 0.92);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.panel-state::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(94, 230, 255, 0.55);
}

.panel-state[data-state="connected"]::before {
  background: var(--success);
  box-shadow: 0 0 14px rgba(45, 230, 139, 0.55);
}

.panel-state[data-state="unavailable"]::before {
  background: var(--danger);
  box-shadow: 0 0 14px rgba(255, 94, 121, 0.55);
}

.demo-grid {
  display: grid;
  gap: 14px;
}

.demo-card {
  background: rgba(8, 13, 25, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 16px;
  text-align: left;
  color: var(--text);
  cursor: pointer;
  transition: 0.2s ease;
}

.demo-card:hover {
  border-color: rgba(94, 230, 255, 0.5);
  transform: translateY(-2px);
}

.demo-card.active {
  border-color: rgba(94, 230, 255, 0.8);
  box-shadow: 0 0 22px rgba(94, 230, 255, 0.2);
}

.demo-card.coming-soon,
.demo-card:disabled {
  cursor: not-allowed;
  opacity: 0.62;
  filter: grayscale(0.35) saturate(0.7);
  transform: none !important;
}

.demo-card.coming-soon:hover,
.demo-card:disabled:hover {
  border-color: rgba(255, 255, 255, 0.08);
  transform: none;
}

.demo-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.soon-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 13, 25, 0.6);
  color: rgba(245, 247, 255, 0.75);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}


.demo-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.demo-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 600;
  color: #041018;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: linear-gradient(140deg, var(--accent), var(--accent-alt));
  box-shadow: 0 10px 24px rgba(58, 179, 255, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.avatar-logistics {
  background: linear-gradient(140deg, #4de7ff, #6c6cff);
}

.avatar-retail {
  background: linear-gradient(140deg, #9b7bff, #ff8db1);
}

.avatar-support {
  background: linear-gradient(140deg, #52f5b7, #3ab3ff);
}

.avatar-sales {
  background: linear-gradient(140deg, #ffd36c, #ff7fba);
}

.demo-desc {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.feature-card {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 15, 29, 0.7);
}

.feature-card h4 {
  margin: 0 0 8px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

footer {
  text-align: center;
  padding: 26px 0 40px;
  color: var(--muted);
  font-size: 0.85rem;
}

/* --- Call overlay --- */
.call-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.call-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.call-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(10px);
}

.call-shell {
  position: relative;
  width: min(1100px, calc(100vw - 36px));
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: radial-gradient(circle at top, rgba(127, 189, 239, 0.12), rgba(12, 17, 32, 0.85) 60%);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  transform: translateY(10px) scale(0.99);
  transition: transform 0.22s ease;
}

.call-overlay.open .call-shell {
  transform: translateY(0) scale(1);
}

.call-close {
  position: absolute;
  top: 14px;
  left: 14px;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(7, 10, 18, 0.55);
  color: rgba(245, 247, 255, 0.9);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 22px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.call-close:hover {
  transform: translateY(-1px);
  border-color: rgba(127, 189, 239, 0.45);
}

.call-layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 320px) 1fr;
  gap: 22px;
  padding: 22px;
}

.call-side {
  padding: 18px 18px 16px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 9, 16, 0.35);
}

.call-side-title {
  margin: 0 0 12px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.call-list {
  margin: 0 0 18px;
  padding: 0 0 0 18px;
  color: rgba(245, 247, 255, 0.92);
}

.call-list li {
  margin: 7px 0;
  line-height: 1.4;
  font-size: 1rem;
  color: rgba(245, 247, 255, 0.88);
}

.call-list.subtle li {
  color: var(--muted);
  font-size: 0.96rem;
}

.call-list-compact {
  margin-bottom: 8px;
}

.call-list-compact li {
  margin: 6px 0;
}

.call-mock-data {
  margin-top: 6px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(127, 189, 239, 0.2);
  background: rgba(127, 189, 239, 0.08);
}

.call-mock-label {
  display: inline-block;
  min-width: 110px;
  font-weight: 700;
  color: rgba(245, 247, 255, 0.95);
}

.call-mock-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: #d5ecff;
}

.call-features {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.92rem;
}

.call-feature {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
}

.dot.ok {
  background: rgba(45, 230, 139, 0.95);
  box-shadow: 0 0 12px rgba(45, 230, 139, 0.35);
}

.call-center {
  display: grid;
  place-items: center;
}

.phone {
  width: 320px;
  max-width: 100%;
  border-radius: 34px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(127, 189, 239, 0.18), rgba(12, 17, 32, 0.88) 62%);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
}

.phone-header {
  text-align: center;
  padding: 6px 8px 12px;
}

.phone-agent {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.phone-sub {
  margin-top: 4px;
  font-size: 0.9rem;
  color: var(--muted);
}

.phone-avatar {
  margin: 10px auto 10px;
  width: 112px;
  height: 112px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.5rem;
  color: #041018;
  background: radial-gradient(circle at top, rgba(94, 230, 255, 1), rgba(155, 123, 255, 0.95));
  box-shadow: 0 18px 45px rgba(58, 179, 255, 0.32);
  position: relative;
}

.phone-avatar::after {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(94, 230, 255, 0.35), transparent 60%);
  filter: blur(12px);
  opacity: 0.9;
  z-index: -1;
}

.phone-state {
  text-align: center;
  color: rgba(245, 247, 255, 0.9);
  font-weight: 700;
  margin-top: 6px;
}

.phone-timer {
  text-align: center;
  margin-top: 10px;
  color: rgba(245, 247, 255, 0.7);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
}

.phone-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 16px;
}

.phone-btn {
  width: 54px;
  height: 54px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.phone-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(127, 189, 239, 0.55);
}

.phone-btn-mic {
  background: rgba(245, 247, 255, 0.08);
  color: rgba(245, 247, 255, 0.92);
}

.phone-btn-mic.muted {
  background: rgba(255, 94, 121, 0.12);
  border-color: rgba(255, 94, 121, 0.35);
}

.phone-btn-hang {
  background: rgba(255, 94, 121, 0.9);
  border-color: rgba(255, 94, 121, 0.45);
  color: #0b0f1d;
  box-shadow: 0 14px 40px rgba(255, 94, 121, 0.28);
}

.phone-icon {
  font-size: 18px;
}

.persona-stage {
  height: 360px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: radial-gradient(circle at top, rgba(127, 189, 239, 0.1), rgba(6, 9, 16, 0.6) 70%);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 14px;
  padding: 18px;
  position: relative;
}

.persona-ring {
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(127, 189, 239, 0.3), transparent 70%);
  filter: blur(10px);
  opacity: 0.65;
  transform: scale(1);
  transition: transform 0.12s linear, opacity 0.12s linear;
}

.persona-head {
  width: 150px;
  height: 150px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: linear-gradient(160deg, rgba(94, 230, 255, 0.85), rgba(155, 123, 255, 0.85));
  box-shadow: 0 16px 45px rgba(58, 179, 255, 0.3);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 16px;
  transform: translateY(0);
  transition: transform 0.12s linear;
}

.persona-eyes {
  display: flex;
  gap: 28px;
}

.persona-eyes span {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: rgba(4, 16, 24, 0.85);
}

.persona-mouth {
  width: 34px;
  height: 10px;
  border-radius: 999px;
  background: rgba(4, 16, 24, 0.85);
  transform-origin: center;
  transition: transform 0.12s linear, height 0.12s linear;
}

.persona-emotion {
  margin: 0;
  font-weight: 600;
  color: rgba(245, 247, 255, 0.9);
}

.persona-meter {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 28px;
}

.persona-meter span {
  width: 6px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(94, 230, 255, 0.95), rgba(155, 123, 255, 0.8));
  opacity: 0.45;
  transform: scaleY(0.5);
  transform-origin: bottom;
  transition: transform 0.1s linear, opacity 0.1s linear;
}

.persona-stage[data-state="speaking"] .persona-head {
  transform: translateY(-1px);
}

.persona-stage[data-state="speaking"] .persona-mouth {
  height: 18px;
  transform: scaleX(0.8);
}

.persona-stage[data-state="speaking"] .persona-ring {
  opacity: 0.9;
}

.persona-stage[data-mood="empathetic"] .persona-head {
  background: linear-gradient(160deg, rgba(105, 218, 255, 0.88), rgba(128, 180, 255, 0.86));
}

.persona-stage[data-mood="upbeat"] .persona-head,
.persona-stage[data-mood="excited"] .persona-head {
  background: linear-gradient(160deg, rgba(94, 230, 255, 0.9), rgba(255, 164, 202, 0.86));
}

.persona-stage[data-mood="serious"] .persona-head {
  background: linear-gradient(160deg, rgba(132, 171, 224, 0.85), rgba(101, 118, 170, 0.86));
}

@media (max-width: 980px) {
  .call-layout {
    grid-template-columns: 1fr;
  }
  .persona-stage {
    height: 220px;
  }
  .call-close {
    left: auto;
    right: 14px;
  }
}

@media (max-width: 720px) {
  .nav {
    padding: 24px 6vw 0;
    flex-wrap: wrap;
    gap: 10px;
  }

  main {
    padding: 24px 6vw 60px;
  }

  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .panel {
    width: 100%;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-grid label.full {
    grid-column: span 1;
  }
}