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

:root {
  --bg: #0a0c0f;
  --bg2: #0f1218;
  --bg3: #151b22;
  --border: #1e2733;
  --border2: #263040;
  --amber: #e8a020;
  --amber-dim: #7a5210;
  --amber-glow: rgba(232, 160, 32, 0.12);
  --green: #28c76f;
  --red: #e84040;
  --text: #c8d4e0;
  --text-dim: #4a5a6a;
  --text-bright: #eef3f8;
  --mono: "IBM Plex Mono", monospace;
  --sans: "IBM Plex Sans", sans-serif;
}

html {
  font-size: 14px;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ── Scanline overlay ── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
}

/* ── Ambient glow ── */
body::after {
  content: "";
  position: fixed;
  top: -40vh;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  height: 80vh;
  background: radial-gradient(
    ellipse,
    rgba(232, 160, 32, 0.04) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

/* ── Header ── */
header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 2.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 12, 15, 0.92);
  backdrop-filter: blur(8px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.logo-icon {
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--amber);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow:
    0 0 12px var(--amber-glow),
    inset 0 0 6px var(--amber-glow);
}
.logo-icon svg {
  width: 14px;
  height: 14px;
  color: var(--amber);
}
.logo-text {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--text-bright);
}
.logo-sub {
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.status-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* ── Main ── */
main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 5rem 1.5rem 4rem;
  gap: 3rem;
}

/* ── Hero text ── */
.hero {
  text-align: center;
  animation: fadeUp 0.6s ease both;
}
.hero-tag {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--amber-dim);
  padding: 0.25rem 0.75rem;
  margin-bottom: 1.5rem;
  background: var(--amber-glow);
}
.hero h1 {
  font-family: var(--mono);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-bright);
  line-height: 1.2;
}
.hero h1 span {
  color: var(--amber);
}
.hero p {
  margin-top: 1rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-dim);
  max-width: 420px;
  line-height: 1.7;
}

/* ── Upload card ── */
.upload-card {
  width: 100%;
  max-width: 560px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  animation: fadeUp 0.6s 0.1s ease both;
}
.card-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.bar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border2);
}

.card-body {
  padding: 2rem;
}

/* email field */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.field label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.field input {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-bright);
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.7rem 1rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s;
}
.field input:focus {
  border-color: var(--amber);
}
.field input::placeholder {
  color: var(--text-dim);
}

/* ── Drop zone ── */
.dropzone {
  border: 1.5px dashed var(--border2);
  border-radius: 3px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition:
    border-color 0.2s,
    background 0.2s;
  position: relative;
  background: transparent;
}
.dropzone:hover,
.dropzone.drag-over {
  border-color: var(--amber);
  background: var(--amber-glow);
}
.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.drop-icon {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--border2);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber);
  background: var(--bg3);
  transition: border-color 0.2s;
}
.dropzone:hover .drop-icon {
  border-color: var(--amber);
}
.drop-primary {
  font-size: 0.8rem;
  color: var(--text-bright);
  letter-spacing: 0.05em;
}
.drop-secondary {
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.drop-limit {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber-dim);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  background: var(--bg);
}

/* ── File preview ── */
.file-preview {
  display: none;
  margin-top: 1rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.7rem 1rem;
  border-radius: 2px;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.file-preview.show {
  display: flex;
}
.file-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}
.file-ext {
  flex-shrink: 0;
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  background: var(--amber-glow);
  border: 1px solid var(--amber-dim);
  color: var(--amber);
  padding: 0.2rem 0.4rem;
  text-transform: uppercase;
}
.file-name {
  font-size: 0.75rem;
  color: var(--text-bright);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-size {
  font-size: 0.65rem;
  color: var(--text-dim);
  flex-shrink: 0;
}
.file-remove {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1;
  padding: 0.2rem;
  transition: color 0.2s;
  flex-shrink: 0;
}
.file-remove:hover {
  color: var(--red);
}

/* ── Progress bar ── */
.progress-wrap {
  display: none;
  margin-top: 1rem;
  flex-direction: column;
  gap: 0.5rem;
}
.progress-wrap.show {
  display: flex;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}
.progress-track {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
  transition: width 0.2s ease;
}

/* ── Encryption mode ── */
.enc-section {
  margin-bottom: 1.5rem;
}
.enc-label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
  display: block;
}
.enc-modes {
  display: flex;
  gap: 1px;
}
.enc-mode {
  flex: 1;
  position: relative;
  cursor: pointer;
}
.enc-mode input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.enc-mode-inner {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.75rem 1rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  transition:
    border-color 0.2s,
    background 0.2s;
  cursor: pointer;
}
.enc-mode input:checked + .enc-mode-inner {
  border-color: var(--amber);
  background: var(--amber-glow);
}
.enc-mode-title {
  font-size: 0.72rem;
  color: var(--text-bright);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.radio-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--text-dim);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    border-color 0.2s,
    background 0.2s;
}
.enc-mode input:checked + .enc-mode-inner .radio-dot {
  border-color: var(--amber);
  background: var(--amber);
}
.enc-mode input:checked + .enc-mode-inner .radio-dot::after {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #0a0c0f;
}
.enc-mode-desc {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  line-height: 1.5;
  padding-left: 1.25rem;
}

/* ── Password field ── */
.password-wrap {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.2s ease both;
}
.password-wrap.show {
  display: flex;
}
.password-input-row {
  display: flex;
  gap: 1px;
}
.password-input-row input {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-bright);
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.7rem 1rem;
  outline: none;
  transition: border-color 0.2s;
}
.password-input-row input:focus {
  border-color: var(--amber);
}
.password-input-row input::placeholder {
  color: var(--text-dim);
}
.btn-toggle-pw {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0 0.8rem;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.btn-toggle-pw:hover {
  color: var(--text);
}
.strength-bar {
  height: 2px;
  background: var(--border);
  overflow: hidden;
}
.strength-fill {
  height: 100%;
  width: 0%;
  transition:
    width 0.3s ease,
    background 0.3s ease;
}
.strength-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}
.strength-label {
  transition: color 0.3s;
}

/* ── Share link (success state) ── */
.share-link-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.share-link-label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.share-link-row {
  display: flex;
  gap: 1px;
}
.share-link-box {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 0.7rem 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.btn-copy {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: none;
  color: var(--amber);
  cursor: pointer;
  padding: 0 1rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  transition: background 0.2s;
  white-space: nowrap;
}
.btn-copy:hover {
  background: var(--amber-glow);
}
.btn-copy.copied {
  color: var(--green);
}
.share-note {
  font-size: 0.6rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.share-note.warn {
  color: var(--amber);
}

/* ── Upload button ── */
.btn-upload {
  width: 100%;
  margin-top: 1.5rem;
  background: var(--amber);
  color: #0a0c0f;
  border: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  padding: 0.9rem;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition:
    background 0.2s,
    box-shadow 0.2s,
    opacity 0.2s;
}
.btn-upload:hover:not(:disabled) {
  background: #f0ac28;
  box-shadow: 0 0 20px rgba(232, 160, 32, 0.3);
}
.btn-upload:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ── Success state ── */
.success-panel {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2.5rem 2rem;
  text-align: center;
}
.success-panel.show {
  display: flex;
}
.upload-card.success {
  border-color: var(--green);
}
.success-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1.5px solid var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  box-shadow: 0 0 24px rgba(40, 199, 111, 0.2);
  animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes scaleIn {
  from {
    transform: scale(0);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}
.success-title {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
}
.success-msg {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.7;
}
.expiry-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.6rem 1.2rem;
  border-radius: 2px;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.expiry-badge span {
  color: var(--amber);
  font-weight: 500;
}
.btn-reset {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.6rem 1.5rem;
  border-radius: 2px;
  transition:
    border-color 0.2s,
    color 0.2s;
}
.btn-reset:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

/* ── Info strip ── */
.info-strip {
  display: flex;
  gap: 1px;
  width: 100%;
  max-width: 560px;
  animation: fadeUp 0.6s 0.2s ease both;
}
.info-item {
  flex: 1;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.info-label {
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.info-value {
  font-size: 0.75rem;
  color: var(--text-bright);
  font-weight: 500;
}
.info-value.amber {
  color: var(--amber);
}
.info-value.green {
  color: var(--green);
}

/* ── Log panel ── */
.log-panel {
  width: 100%;
  max-width: 560px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  animation: fadeUp 0.6s 0.3s ease both;
}
.log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1.2rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.log-body {
  padding: 0.75rem 1.2rem;
  min-height: 80px;
  max-height: 140px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.log-line {
  font-size: 0.7rem;
  line-height: 1.6;
  display: flex;
  gap: 1rem;
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.log-time {
  color: var(--text-dim);
  flex-shrink: 0;
}
.log-msg {
  color: var(--text);
}
.log-msg.ok {
  color: var(--green);
}
.log-msg.warn {
  color: var(--amber);
}
.log-msg.err {
  color: var(--red);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Footer ── */
footer {
  position: relative;
  z-index: 1;
  padding: 1.2rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: 2rem;
}