/* ============================================================
   1hm.net — Main stylesheet
   ============================================================ */

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

:root {
  color-scheme: dark;   /* dark mode cho cả widget hệ thống (dropdown, scrollbar...) */
  --bg:      #08090d;
  --bg2:     #0f1018;
  --bg3:     #161720;
  --accent:  #00e5a0;
  --accent2: #00b87c;
  --text:    #eceef5;
  --muted:   #6b6f85;
  --border:  rgba(255,255,255,0.07);
  --danger:  #f26d6d;
  --warning: #f0a640;
  --mono:    'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, serif;
  --display: 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, serif;
  --code:    Consolas, 'Cascadia Mono', 'Courier New', monospace; /* giữ monospace cho code/secret */
  --radius:  12px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.6;
}

/* ── NAVBAR ─────────────────────────────────────── */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(8,9,13,.97);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo-mark {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  background: var(--accent);
  color: #000;
  padding: 3px 10px;
  border-radius: 6px;
  letter-spacing: .04em;
}
.logo-dot { font-size: .85rem; color: var(--muted); font-weight: 400; }

.nav-links { display: flex; gap: 1.6rem; align-items: center; }
.nav-links a {
  font-size: .82rem;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  transition: color .15s;
}
.nav-links a:hover { color: #fff; }

.btn-nav {
  background: var(--accent);
  color: #000;
  border: none;
  padding: .48rem 1.1rem;
  border-radius: 7px;
  font-size: .8rem;
  font-weight: 800;
  cursor: pointer;
  font-family: var(--display);
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: opacity .15s;
  text-decoration: none;
}
.btn-nav:hover { opacity: .85; }

.btn-nav-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: .44rem 1rem;
  border-radius: 7px;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--display);
  text-decoration: none;
  transition: all .15s;
}
.btn-nav-ghost:hover { color: #fff; border-color: rgba(255,255,255,.25); }

/* ── HERO ────────────────────────────────────────── */
.hero {
  padding: 5.5rem 2rem 3.5rem;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--accent);
  border: 1px solid rgba(0,229,160,.3);
  background: rgba(0,229,160,.06);
  padding: .3rem .9rem;
  border-radius: 20px;
  margin-bottom: 2rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.badge-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.2} }

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.05em;
  color: #fff;
  margin-bottom: 1.25rem;
}
.hero h1 .hl { color: var(--accent); }

.hero-sub {
  font-family: var(--mono);
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.75;
  max-width: 500px;
  margin: 0 auto 2.5rem;
}

.cta-row { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }

/* ── BUTTONS ─────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: #000;
  border: none;
  padding: .78rem 2rem;
  border-radius: 9px;
  font-size: .9rem;
  font-weight: 800;
  cursor: pointer;
  font-family: var(--display);
  transition: all .15s;
  text-decoration: none;
  display: inline-block;
}
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: .78rem 2rem;
  border-radius: 9px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--display);
  transition: all .15s;
  text-decoration: none;
  display: inline-block;
}
.btn-ghost:hover { border-color: rgba(255,255,255,.3); color: #fff; }

.btn-danger {
  background: rgba(242,109,109,.1);
  color: var(--danger);
  border: 1px solid rgba(242,109,109,.3);
  padding: .4rem .9rem;
  border-radius: 7px;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--display);
  transition: all .15s;
  text-decoration: none;
}
.btn-danger:hover { background: rgba(242,109,109,.2); }

/* ── COMPOSER / FORM CARD ───────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
}

.card-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: .75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.bar-dot { width: 10px; height: 10px; border-radius: 50%; }
.bar-dot.r { background: #ff5f57; }
.bar-dot.y { background: #febc2e; }
.bar-dot.g { background: #28c840; }
.bar-label {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  margin-left: 8px;
}

.card-body { padding: 1.5rem; }

/* type pills */
.pill-row { display: flex; gap: .45rem; margin-bottom: 1rem; flex-wrap: wrap; }
.pill {
  padding: .35rem .85rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg3);
  font-size: .75rem;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--display);
  letter-spacing: .03em;
  transition: all .15s;
}
.pill:hover, .pill.active {
  border-color: rgba(0,229,160,.4);
  color: var(--accent);
  background: rgba(0,229,160,.1);
}

/* form inputs */
.field { margin-bottom: 1rem; }
.field label {
  display: block;
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--muted);
  letter-spacing: .07em;
  text-transform: uppercase;
  margin-bottom: .4rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
select,
textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: .65rem 1rem;
  color: var(--text);
  font-family: var(--mono);
  font-size: .85rem;
  outline: none;
  transition: border-color .2s;
  caret-color: var(--accent);
}
input:focus, select:focus, textarea:focus { border-color: rgba(0,229,160,.4); }
input::placeholder, textarea::placeholder { color: var(--muted); }

textarea { resize: vertical; line-height: 1.65; min-height: 140px; font-family: var(--code); }

select { appearance: none; cursor: pointer; }

/* option chips */
.opt-row { display: flex; gap: .5rem; margin: .85rem 0; flex-wrap: wrap; }
.opt-chip {
  display: flex; align-items: center; gap: 6px;
  padding: .4rem .85rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg3);
  font-size: .75rem;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--display);
  transition: all .15s;
  user-select: none;
}
.opt-chip:hover, .opt-chip.active {
  border-color: rgba(0,229,160,.4);
  color: var(--accent);
  background: rgba(0,229,160,.07);
}

/* expiry buttons */
.exp-group { display: flex; gap: .35rem; }
.exp-btn {
  padding: .38rem .75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--mono);
  letter-spacing: .05em;
  transition: all .15s;
}
.exp-btn:hover, .exp-btn.active {
  background: rgba(0,229,160,.1);
  border-color: rgba(0,229,160,.4);
  color: var(--accent);
}

.bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: .85rem;
  flex-wrap: wrap;
}

.exp-label {
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--muted);
  margin-bottom: .4rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.btn-create {
  display: flex; align-items: center; gap: 7px;
  background: var(--accent);
  color: #000;
  border: none;
  padding: .65rem 1.5rem;
  border-radius: 9px;
  font-size: .85rem;
  font-weight: 800;
  cursor: pointer;
  font-family: var(--display);
  transition: all .15s;
  white-space: nowrap;
}
.btn-create:hover { opacity: .88; transform: translateY(-1px); }

/* result box */
.result-box {
  margin-top: .85rem;
  background: rgba(0,229,160,.05);
  border: 1px solid rgba(0,229,160,.25);
  border-radius: 10px;
  padding: .8rem 1rem;
  display: none;
  align-items: center;
  gap: .75rem;
}
.result-box.show { display: flex; }
.result-url {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--accent);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-copy {
  background: rgba(0,229,160,.12);
  border: 1px solid rgba(0,229,160,.3);
  color: var(--accent);
  padding: .32rem .9rem;
  border-radius: 7px;
  font-size: .73rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--mono);
  white-space: nowrap;
  transition: all .15s;
}
.btn-copy:hover { background: rgba(0,229,160,.22); }

/* ── FEATURES ────────────────────────────────────── */
.feats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.feat { background: var(--bg2); padding: 1.5rem 1.25rem; transition: background .2s; }
.feat:hover { background: var(--bg3); }
.feat-num { font-family: var(--mono); font-size: .68rem; color: var(--accent); letter-spacing: .1em; margin-bottom: .85rem; opacity: .7; }
.feat-title { font-size: .9rem; font-weight: 800; color: #fff; margin-bottom: .4rem; letter-spacing: -.02em; }
.feat-desc { font-family: var(--mono); font-size: .73rem; color: var(--muted); line-height: 1.65; }

/* ── STEPS ───────────────────────────────────────── */
.steps { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.step { display: flex; gap: 1.25rem; align-items: flex-start; padding: 1.25rem; background: var(--bg2); transition: background .2s; }
.step:hover { background: var(--bg3); }
.step-num { font-family: var(--mono); font-size: .8rem; font-weight: 600; color: var(--accent); min-width: 28px; margin-top: 2px; }
.step-title { font-size: .92rem; font-weight: 800; color: #fff; margin-bottom: .3rem; letter-spacing: -.02em; }
.step-desc { font-family: var(--mono); font-size: .75rem; color: var(--muted); line-height: 1.65; }

/* ── STATS ───────────────────────────────────────── */
.stats { display: flex; justify-content: center; gap: 5rem; padding: 3.5rem 2rem; flex-wrap: wrap; }
.stat-n { font-size: 2.2rem; font-weight: 900; color: #fff; letter-spacing: -.05em; }
.stat-l { font-family: var(--mono); font-size: .72rem; color: var(--muted); margin-top: 4px; letter-spacing: .05em; }

/* ── SECTION HELPERS ─────────────────────────────── */
.section { max-width: 680px; margin: 5rem auto 0; padding: 0 1.5rem; }
.section-label { font-family: var(--mono); font-size: .7rem; color: var(--accent); letter-spacing: .1em; text-transform: uppercase; margin-bottom: .75rem; }
.section h2 { font-size: 1.8rem; font-weight: 900; color: #fff; letter-spacing: -.04em; margin-bottom: 1.5rem; }

.sep { border: none; border-top: 1px solid var(--border); margin: 3rem 0; }

/* ── ALERTS ──────────────────────────────────────── */
.alert {
  padding: .85rem 1.1rem;
  border-radius: 10px;
  font-family: var(--mono);
  font-size: .82rem;
  margin-bottom: 1rem;
  border: 1px solid;
}
.alert-error   { background: rgba(242,109,109,.08); border-color: rgba(242,109,109,.3); color: #f8a5a5; }
.alert-success { background: rgba(0,229,160,.07);   border-color: rgba(0,229,160,.3);   color: var(--accent); }
.alert-warning { background: rgba(240,166,64,.08);  border-color: rgba(240,166,64,.3);  color: var(--warning); }

/* ── DASHBOARD TABLE ─────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .83rem; }
th {
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .07em;
  padding: .6rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: .8rem;
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.025); }

.badge {
  display: inline-block;
  padding: .25rem .6rem;
  border-radius: 5px;
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .04em;
}
.badge-active   { background: rgba(0,229,160,.12); color: var(--accent); }
.badge-viewed   { background: rgba(107,111,133,.15); color: var(--muted); }
.badge-expired  { background: rgba(240,166,64,.1);  color: var(--warning); }
.badge-deleted  { background: rgba(242,109,109,.1); color: var(--danger); }

/* ── SECRET VIEW PAGE ────────────────────────────── */
.secret-wrap {
  max-width: 680px;
  margin: 4rem auto;
  padding: 0 1.5rem;
}
.secret-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
}
.secret-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
  gap: 1rem;
  flex-wrap: wrap;
}
.secret-meta { font-family: var(--mono); font-size: .75rem; color: var(--muted); }
.secret-content {
  padding: 1.5rem;
  font-family: var(--code);
  font-size: .85rem;
  color: var(--text);
  line-height: 1.75;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 120px;
}
.secret-actions {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}

.reveal-gate {
  padding: 3rem 2rem;
  text-align: center;
}
.reveal-gate h2 { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: .5rem; letter-spacing: -.03em; }
.reveal-gate p  { font-family: var(--mono); font-size: .8rem; color: var(--muted); margin-bottom: 1.5rem; line-height: 1.7; }
.reveal-warn {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(240,166,64,.08);
  border: 1px solid rgba(240,166,64,.25);
  color: var(--warning);
  padding: .45rem 1rem;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: .75rem;
  margin-bottom: 1.5rem;
}

/* ── CTA BANNER ──────────────────────────────────── */
.cta-banner {
  background: var(--bg2);
  border: 1px solid rgba(0,229,160,.2);
  border-radius: 18px;
  padding: 3rem 2rem;
  text-align: center;
  margin: 3rem auto;
  max-width: 680px;
}
.cta-banner h2 { font-size: 1.8rem; font-weight: 900; color: #fff; letter-spacing: -.04em; margin-bottom: .75rem; }
.cta-banner p  { font-family: var(--mono); font-size: .8rem; color: var(--muted); line-height: 1.7; margin-bottom: 1.75rem; }

/* ── AUTH PAGES ──────────────────────────────────── */
.auth-wrap {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2.5rem;
}
.auth-card h1 { font-size: 1.6rem; font-weight: 900; color: #fff; letter-spacing: -.04em; margin-bottom: .5rem; }
.auth-card .sub { font-family: var(--mono); font-size: .78rem; color: var(--muted); margin-bottom: 2rem; }
.auth-footer { margin-top: 1.5rem; font-family: var(--mono); font-size: .78rem; color: var(--muted); text-align: center; }
.auth-footer a { color: var(--accent); text-decoration: none; }

/* ── FOOTER ──────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--border); margin-top: 5rem; padding: 1.75rem 2.5rem; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 1100px;
  margin: 0 auto;
}
.footer-logo { font-family: var(--mono); font-size: .9rem; font-weight: 600; color: var(--accent); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-family: var(--mono); font-size: .72rem; color: var(--muted); text-decoration: none; transition: color .15s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-family: var(--mono); font-size: .72rem; color: var(--muted); }

/* ── UTILITIES ───────────────────────────────────── */
.container { max-width: 680px; margin: 0 auto; padding: 0 1.5rem; }
.mt1 { margin-top: 1rem; }
.mt2 { margin-top: 2rem; }
.mt3 { margin-top: 3rem; }
.mb1 { margin-bottom: 1rem; }
.mb2 { margin-bottom: 2rem; }
.text-muted { color: var(--muted); font-family: var(--mono); font-size: .82rem; }
.text-center { text-align: center; }
.hidden { display: none; }