:root {
  --bg: #edf1f7;
  --surface: #ffffff;
  --text: #0f172a;
  --line: #d8dfeb;
  --black: #0a0a0b;
  --black-soft: #17181a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #f7f9fd 0%, var(--bg) 48%);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1100px, 94%);
  margin: 0 auto;
}

.topbar {
  position: static;
  background: rgba(29, 58, 102, 0.6);
  border-bottom: 1px solid rgba(150, 178, 223, 0.4);
  backdrop-filter: blur(16px) saturate(155%);
  -webkit-backdrop-filter: blur(16px) saturate(155%);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.82rem 0.72rem;
}

.identity-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  min-width: 0;
}

.identity-block h1 {
  margin: 0;
  font-size: clamp(1.03rem, 2.3vw, 1.3rem);
  letter-spacing: 0.01em;
  color: #f4f8ff;
  white-space: nowrap;
}

.phone-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  text-decoration: none;
  color: rgba(228, 238, 255, 0.92);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  padding: 0;
  border: 0;
  opacity: 0.96;
}

.phone-link:hover {
  opacity: 1;
}

.phone-icon {
  width: 0.9rem;
  height: 0.9rem;
  display: inline-flex;
  transform: translateY(1px);
}

.phone-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.zoom-controls {
  display: none;
  align-items: center;
  gap: 0.25rem;
  padding: 0.22rem 0.3rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(210, 226, 255, 0.28);
}

.zoom-btn {
  border: 0;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  color: #eef4ff;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
}

.zoom-level {
  min-width: 2.8rem;
  text-align: center;
  color: #eef4ff;
  font-size: 0.77rem;
  font-weight: 600;
}

.download-btn {
  text-decoration: none;
  background: linear-gradient(180deg, var(--black-soft), var(--black));
  color: #fff;
  padding: 0.58rem 0.98rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 24px rgba(7, 7, 8, 0.25);
}

.pdf-shell {
  padding: 1.05rem 0 1.3rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.status {
  text-align: center;
  margin: 0.35rem 0 0.8rem;
  color: #334155;
  font-weight: 600;
}

.hidden {
  display: none;
}

.pdf-pages {
  display: grid;
  gap: 1.2rem;
}

.pdf-page {
  background: var(--surface);
  border: 1px solid rgba(216, 223, 235, 0.85);
  border-radius: 16px;
  padding: 0.72rem;
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.08);
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .container {
    width: 98%;
  }

  .topbar-inner {
    gap: 0.9rem;
    padding: 0.72rem 0.58rem;
  }

  .identity-block h1 {
    white-space: normal;
    line-height: 1.2;
  }

  .download-btn {
    padding: 0.52rem 0.88rem;
    font-size: 0.84rem;
  }
}

@media (max-width: 700px) {
  .topbar-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.62rem;
    padding-top: 0.64rem;
    padding-bottom: 0.64rem;
  }

  .identity-block {
    width: 100%;
    gap: 0.12rem;
  }

  .identity-block h1 {
    font-size: 0.96rem;
    line-height: 1.18;
  }

  .phone-link {
    font-size: 0.77rem;
    align-self: flex-start;
  }

  .download-btn {
    width: 100%;
    text-align: center;
    padding: 0.58rem 0.85rem;
  }

  .header-actions {
    width: 100%;
    gap: 0.5rem;
  }

  .zoom-controls {
    display: inline-flex;
    flex: 0 0 auto;
  }

  .pdf-shell {
    padding-top: 0.62rem;
    padding-bottom: 0.82rem;
  }

  .pdf-pages {
    gap: 0.85rem;
  }

  .pdf-page {
    border-radius: 12px;
    padding: 0.46rem;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
  }

  canvas {
    border-radius: 8px;
  }
}

@media (max-width: 420px) {
  .container {
    width: 99%;
  }

  .topbar-inner {
    padding-left: 0.42rem;
    padding-right: 0.42rem;
  }

  .identity-block h1 {
    font-size: 0.92rem;
  }

  .phone-link {
    font-size: 0.74rem;
  }

  .download-btn {
    font-size: 0.82rem;
  }
}