/* Structure360 — studio webmail (/mail)
   Same paper, sage and hairline language as the site, sized for reading mail. */

.mail-app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.mail-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px var(--pad);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}

.mail-top__left {
  display: flex;
  align-items: baseline;
  gap: 16px;
  min-width: 0;
}

.mail-top__label {
  font-size: 9.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--gold);
}

.mail-top__right {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: var(--muted);
}

.mail-top__box {
  color: var(--ink);
  font-size: 13px;
}

.mail-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* ---------- login ---------- */

.mail-login {
  flex: 1;
  display: grid;
  place-items: center;
  padding: clamp(32px, 7vw, 96px) var(--pad);
}

.mail-login__card {
  width: min(440px, 100%);
  background: var(--white);
  border: 1px solid var(--line-strong);
  padding: clamp(26px, 3.4vw, 40px);
  display: grid;
  gap: 18px;
}

.mail-login__card h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mail-login__note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.mail-error {
  font-size: 13px;
  color: #8c3a28;
  min-height: 1.2em;
}

.mail-error[data-state="ok"] {
  color: var(--green);
}

/* ---------- inbox ---------- */

.mail-body {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  min-height: calc(100vh - 66px);
}

.mail-list {
  border-right: 1px solid var(--line-strong);
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--paper);
}

.mail-list__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.mail-list__head strong {
  color: var(--ink);
  font-weight: 500;
  letter-spacing: 0.22em;
}

.mail-list__items {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  flex: 1;
}

.mail-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 14px 20px;
  cursor: pointer;
  font-family: var(--font-body);
  color: var(--ink);
  transition: background 0.2s var(--ease);
}

.mail-item:hover {
  background: var(--sage);
}

.mail-item[aria-current="true"] {
  background: var(--sage);
  box-shadow: inset 2px 0 0 var(--green);
}

.mail-item__top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
}

.mail-item__from {
  font-size: 13.5px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-item__subject {
  font-size: 13px;
  color: var(--body);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-item.is-unread .mail-item__from,
.mail-item.is-unread .mail-item__subject {
  font-weight: 600;
  color: var(--ink);
}

.mail-item.is-unread .mail-item__from::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--gold);
  vertical-align: middle;
}

/* ---------- reader ---------- */

.mail-reader {
  padding: clamp(24px, 3vw, 40px);
  overflow-y: auto;
  min-height: 0;
}

.mail-reader__empty {
  color: var(--muted);
  font-size: 14px;
  max-width: 34ch;
  line-height: 1.8;
}

.mail-reader__head {
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 18px;
  margin-bottom: 22px;
}

.mail-reader__subject {
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  letter-spacing: 0.03em;
  text-transform: none;
  margin-bottom: 12px;
}

.mail-reader__meta {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.mail-reader__meta b {
  color: var(--ink);
  font-weight: 500;
}

.mail-reader__frame {
  width: 100%;
  min-height: 320px;
  border: 0;
  background: var(--white);
}

.mail-reader__text {
  white-space: pre-wrap;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body);
}

.mail-reader__attachments {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--muted);
}

.mail-reader__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.mail-reply {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.mail-reply textarea {
  width: 100%;
  min-height: 140px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  padding: 12px 14px;
  resize: vertical;
}

.mail-reply textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: var(--white);
}

.mail-status {
  font-size: 13px;
  color: var(--green);
  min-height: 1.3em;
}

.mail-link-btn {
  background: none;
  border: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
}

.mail-link-btn:hover {
  color: var(--ink);
}

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

@media (max-width: 860px) {
  .mail-body {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }

  .mail-list {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .mail-list__items {
    max-height: 45vh;
  }
}