/* style.css — QuickPaste Design System */
/* Theme: Warm Parchment Brutalist (暖黄羊皮纸新粗野主义) */
/* Fonts: Local Courier Prime (Typewriter Serif) + System Built-in Serifs */
/* Absolutely zero rounded corners. Strong sharp outlines and solid block shadows. */

@font-face {
  font-family: 'Courier Prime';
  src: url('/fonts/courier-prime-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Courier Prime';
  src: url('/fonts/courier-prime-bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Courier Prime';
  src: url('/fonts/courier-prime-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Courier Prime';
  src: url('/fonts/courier-prime-bolditalic.woff2') format('woff2');
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

:root {
  --bg: #f4ecd8;               /* Warm parchment paper */
  --bg-darker: #ebdcb9;        /* Slightly darker warm parchment for tracks */
  --surface: #fbfaf7;          /* Cotton/art paper sheet */
  --border: #1a1510;           /* Charcoal print ink black */
  --text: #1a1510;             /* Charcoal print ink black */
  --text-muted: #73604f;       /* Warm clay brown */
  --text-dim: #5c4c3e;         /* Deeper warm brown */
  --accent: #c2410c;           /* Terracotta red stamp */
  --accent-light: #ffedd5;     /* Terracotta light wash */
  --green: #1b4d3e;            /* Deep Brunswick forest green */
  --green-bg: #e2ede8;         /* Soft forest green wash */
  --red: #8b0000;              /* Dark crimson */
  --red-bg: #f5e6e6;           /* Soft crimson wash */
  --shadow: 4px 4px 0px #1a1510;  /* Brutalist solid black block shadow */
  --shadow-sm: 2px 2px 0px #1a1510;
  --transition: 0.08s cubic-bezier(0.4, 0, 0.2, 1); /* Snappy tactile speed */
}

/* ── Global Styles ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Force 100% sharp corners globally */
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Courier Prime', 'Songti SC', 'SimSun', 'STSong', serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* SVG Paper Noise Texture Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  opacity: 0.045;
  pointer-events: none;
  z-index: 9999;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
  border-left: 2px solid var(--border);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ── Utilities ──────────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0, 0, 0, 0);
  overflow: hidden;
}
.hidden {
  display: none !important;
}

/* ── Layout elements ────────────────────────────────────────── */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Header ─────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
  margin-bottom: 1rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  font-family: 'Courier Prime', serif;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: white;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border: 2px solid var(--border);
  background: var(--text-muted);
}
.status-dot.connected {
  background: var(--green);
}
.status-dot.error {
  background: var(--red);
}

.username-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 700;
  font-family: 'Courier Prime', serif;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  user-select: none;
  white-space: nowrap;
  text-transform: uppercase;
}

.btn:hover {
  background: var(--bg-darker);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: var(--shadow);
}
.btn-primary:hover {
  background: #a1350a; /* Slightly darker terracotta */
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0px var(--border);
}
.btn-primary:active {
  transform: translate(4px, 4px);
  box-shadow: 0px 0px 0px var(--border);
}

.btn-ghost {
  background: transparent;
  box-shadow: none;
  border: 2px solid transparent;
}
.btn-ghost:hover {
  background: var(--bg-darker);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
  transform: none;
}
.btn-ghost:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border);
}

.btn-icon {
  background: var(--surface);
  color: var(--text);
  border: 2px solid var(--border);
  padding: 0.4rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.btn-icon:hover {
  background: var(--bg-darker);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border);
}

.btn-icon:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border);
}

.btn-icon.danger {
  color: var(--red);
}
.btn-icon.danger:hover {
  background: var(--red-bg);
}
.btn-icon.success {
  color: var(--green) !important;
  background: var(--green-bg) !important;
}

/* ── Input Area ─────────────────────────────────────────────── */
.input-area {
  padding: 1.5rem 0 1rem;
}

.input-box {
  background: var(--surface);
  border: 2px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.input-box:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--accent);
}

.clip-textarea {
  width: 100%;
  min-height: 100px;
  max-height: 260px;
  padding: 1rem;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 0.95rem;
  font-family: 'Songti SC', 'SimSun', 'STSong', 'Courier Prime', serif;
  resize: none;
  line-height: 1.6;
}

.clip-textarea::placeholder {
  color: var(--text-muted);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.input-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-top: 2px solid var(--border);
  background: var(--bg-darker);
}

.input-hint {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
}

.btn-send {
  background: var(--accent);
  color: #ffffff;
  border: 2px solid var(--border);
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: 'Courier Prime', serif;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-transform: uppercase;
}

.btn-send:hover {
  background: #a1350a;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border);
}

.btn-send:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--border);
}

/* ── Clips List Header ──────────────────────────────────────── */
.clips-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}

.clips-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.clips-count {
  font-size: 0.8rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--border);
  padding: 0.15rem 0.5rem;
  font-family: 'Courier Prime', serif;
}

.clips-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-bottom: 3rem;
}

/* ── Clip Card ──────────────────────────────────────────────── */
.clip-card {
  background: var(--surface);
  border: 2px solid var(--border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: brutalSlide 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes brutalSlide {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.clip-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--border);
}

.clip-content {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  word-break: break-all;
  white-space: pre-wrap;
  font-family: 'Songti SC', 'SimSun', 'STSong', 'Courier Prime', serif;
}

.clip-content a {
  color: var(--accent);
  text-decoration: underline;
  font-weight: 700;
}
.clip-content a:hover {
  background: var(--accent-light);
}

.clip-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--bg-darker);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
}

.clip-time {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
}

.clip-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Post Stamp style share badge */
.share-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--green);
  border: 1px solid var(--border);
  padding: 0.1rem 0.5rem;
  display: none;
  align-items: center;
  gap: 0.25rem;
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
}
.share-badge.visible {
  display: inline-flex;
}

/* ── Auth Page ──────────────────────────────────────────────── */
.auth-page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 2px solid var(--border);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 1.25rem;
}

.auth-logo-icon {
  width: 44px;
  height: 44px;
  background: var(--accent);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #ffffff;
  flex-shrink: 0;
}

.auth-logo h1 {
  font-size: 1.5rem;
  font-weight: 900;
  font-family: 'Courier Prime', serif;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.auth-logo p {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  margin-top: 0.15rem;
}

.auth-tabs {
  display: flex;
  background: var(--bg-darker);
  border: 2px solid var(--border);
  padding: 4px;
  margin-bottom: 2rem;
}

.auth-tab {
  flex: 1;
  padding: 0.6rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  text-align: center;
}

.auth-tab.active {
  background: var(--border);
  color: #ffffff;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--text);
  font-size: 1rem;
  font-family: 'Courier Prime', serif;
  outline: none;
  transition: var(--transition);
}

.form-input:focus {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0px var(--accent);
}

.form-input::placeholder {
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.8rem;
}

.error-msg {
  background: var(--red-bg);
  border: 2px solid var(--red);
  color: var(--red);
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: 'Courier Prime', serif;
  margin-top: 1rem;
  text-transform: uppercase;
  display: none;
}
.error-msg.show {
  display: block;
}

/* ── Share Page ─────────────────────────────────────────────── */
.share-page {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  gap: 2rem;
  background: var(--bg);
}

.share-card {
  width: 100%;
  max-width: 580px;
  background: var(--surface);
  border: 2px solid var(--border);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.share-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 2px solid var(--border);
}

.share-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
}

.share-card-subtitle {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  margin-top: 0.15rem;
}

.share-content-box {
  background: var(--bg-darker);
  border: 2px solid var(--border);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  min-height: 80px;
}

.share-content {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text);
  word-break: break-all;
  white-space: pre-wrap;
  font-family: 'Songti SC', 'SimSun', 'STSong', 'Courier Prime', serif;
}

.share-content a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: underline;
}
.share-content a:hover {
  background: var(--accent-light);
}

.share-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.share-brand {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
}

.share-brand a {
  color: var(--accent);
  text-decoration: underline;
}

/* ── Empty State ────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--text-muted);
  border: 2px dashed var(--text-muted);
  background: rgba(0, 0, 0, 0.015);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.empty-state p {
  font-size: 0.85rem;
  font-weight: 700;
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  line-height: 1.6;
}

/* ── Loading & Spinners ──────────────────────────────────────── */
.loading {
  display: flex;
  justify-content: center;
  padding: 3rem;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 4px solid var(--bg-darker);
  border-top-color: var(--accent);
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Toast Notifications ──────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  pointer-events: none;
  width: 90%;
  max-width: 400px;
}

.toast {
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--text);
  padding: 0.75rem 1.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: 'Courier Prime', serif;
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
  animation: brutalToastIn 0.1s cubic-bezier(0.4, 0, 0.2, 1), brutalToastOut 0.15s cubic-bezier(0.4, 0, 0.2, 1) 1.8s forwards;
  width: 100%;
  text-align: center;
}

.toast.success {
  border-color: var(--green);
  background: var(--green-bg);
  color: var(--green);
}

.toast.error {
  border-color: var(--red);
  background: var(--red-bg);
  color: var(--red);
}

@keyframes brutalToastIn {
  from { transform: translateY(6px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes brutalToastOut {
  to { transform: translateY(-4px); opacity: 0; }
}

/* ── Responsive adjustments ──────────────────────────────────── */
@media (max-width: 480px) {
  .app { padding: 0 1rem; }
  .auth-card { padding: 2rem 1.25rem; }
  .share-card { padding: 1.5rem 1.25rem; }
  .input-hint { display: none; }
}