/* ============================================================
   iHacker Terminal UI — Date/Unix Converter Pro — style.css v3.1 (red console design)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── CSS Variables ── */
:root {
  --accent:      #dd0000;
  --accent-h:    #ff2020;
  --accent-glow: rgba(221,0,0,.12);
  --bg:          #0b0b0d;
  --bg-1:        #111013;
  --bg-2:        #17161a;
  --bg-3:        #1f1d22;
  --bg-4:        #26242b;
  --bg-5:        #2e2c34;
  --bd:          #2c2a30;
  --bd-2:        #413e46;
  --tx:          #f1f1f3;
  --tx-2:        #a0a0a8;
  --tx-3:        #6e6e78;
  --tx-4:        #413e46;
  --grn:         #22c55e;
  --yel:         #f59e0b;
  --blu:         #3b82f6;
  --prp:         #8b5cf6;
  --r:           8px;
  --rl:          12px;
  --rxl:         14px;
  --trans:       150ms cubic-bezier(.4,0,.2,1);
  --shadow:      0 0 0 1px rgba(221,0,0,.07), 0 10px 30px rgba(0,0,0,.45);
}
[data-theme="light"] {
  --bg:    #f2f3f5; --bg-1:  #e8eaed; --bg-2: #ffffff;
  --bg-3:  #eef0f3; --bg-4:  #e4e6ea; --bg-5: #d8dadf;
  --bd:    #e0e2e6; --bd-2:  #c8cace;
  --tx:    #0d0d0d; --tx-2:  #4a4c52; --tx-3: #9a9ca5; --tx-4: #c8cace;
  --accent:#dd0000;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;overflow-x:hidden;max-width:100%}
body{font-family:'Space Grotesk',system-ui,sans-serif;background:var(--bg);color:var(--tx);min-height:100vh;overflow-x:hidden;max-width:100%;position:relative}

img,canvas,svg,video{max-width:100%}
/* ── Matrix Canvas ── */
#mx{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.03}
[data-theme="light"] #mx{opacity:.012}

/* ── Scanlines ── */
.scanlines{position:fixed;inset:0;background:repeating-linear-gradient(to bottom,transparent,transparent 2px,rgba(0,0,0,.03) 2px,rgba(0,0,0,.03) 4px);pointer-events:none;z-index:1}
[data-theme="light"] .scanlines{display:none}

/* ── Header ── */
.site-header{position:sticky;top:0;height:54px;background:rgba(8,8,8,.94);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:1000;display:flex;align-items:center;padding:0 20px;gap:12px}
[data-theme="light"] .site-header{background:rgba(242,243,245,.94)}
.site-header::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-mark{width:28px;height:28px;background:var(--accent);border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:.6rem;color:#fff;font-weight:700;flex-shrink:0}
.logo-text{font-family:'Space Grotesk',system-ui,sans-serif;font-size:.82rem;letter-spacing:2px;color:var(--tx);font-weight:700}
.logo-ver{font-family:'JetBrains Mono',monospace;font-size:.58rem;color:var(--tx-3);border:1px solid var(--bd);border-radius:20px;padding:2px 6px}
.header-spacer{flex:1}
.header-actions{display:flex;align-items:center;gap:8px}
.theme-toggle{width:32px;height:32px;background:none;border:1px solid var(--bd);border-radius:var(--r);color:var(--tx-2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:var(--trans)}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}
.history-btn{font-family:'JetBrains Mono',monospace;font-size:.7rem;background:none;border:1px solid var(--bd);border-radius:var(--r);color:var(--tx-3);padding:4px 10px;cursor:pointer;transition:var(--trans);white-space:nowrap}
.history-btn:hover{border-color:var(--accent);color:var(--accent)}
.history-count{background:var(--accent);color:#fff;border-radius:20px;padding:1px 5px;font-size:.58rem;margin-left:4px;vertical-align:middle}

/* ── Layout ── */
.wrap{max-width:1280px;width:100%;margin:0 auto;padding:24px 16px;position:relative;z-index:2;overflow-wrap:anywhere}
.tool-actionbar{display:flex;justify-content:flex-end;align-items:center;gap:8px;margin-bottom:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media(max-width:860px){.grid-2{grid-template-columns:1fr}}

/* ── Page Title ── */
.pg-title{font-family:'Space Grotesk',system-ui,sans-serif;font-size:1.4rem;font-weight:700;letter-spacing:2px;color:var(--tx);margin-bottom:4px;padding-left:14px;position:relative;overflow-wrap:anywhere}
.pg-title::before{content:'';position:absolute;left:0;top:2px;bottom:2px;width:3px;background:var(--accent);border-radius:2px}
.pg-subtitle{font-size:.75rem;color:var(--tx-3);margin-bottom:24px;padding-left:14px;font-family:'JetBrains Mono',monospace}

/* ── Panel ── */
.panel{background:var(--bg-2);border:1px solid var(--bd);border-radius:var(--rl);box-shadow:var(--shadow);position:relative;overflow:hidden;margin-bottom:18px}
.panel::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.panel-bar{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--bd);background:var(--bg-3)}
.panel-dots{display:flex;gap:5px}
.panel-dots span{width:10px;height:10px;border-radius:50%;display:block}
.panel-dots span:nth-child(1){background:var(--accent)}
.panel-dots span:nth-child(2){background:var(--yel)}
.panel-dots span:nth-child(3){background:var(--grn)}
.panel-title{font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--tx-3);text-transform:lowercase;letter-spacing:.5px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.panel-body{padding:20px 18px}

/* ── Tabs ── */
.tabs{display:flex;border-bottom:1px solid var(--bd);margin-bottom:20px;gap:0;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab-btn{font-family:'Space Grotesk',system-ui,sans-serif;font-size:.79rem;font-weight:500;color:var(--tx-3);background:none;border:none;border-bottom:2px solid transparent;padding:10px 16px;cursor:pointer;transition:var(--trans);display:flex;align-items:center;gap:6px;white-space:nowrap;flex-shrink:0}
.tab-btn:hover{color:var(--tx-2)}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);background:var(--bg-3)}
.tab-pane{display:none}
.tab-pane.active{display:block}

/* ── Form Elements ── */
.flabel{display:block;font-family:'Space Grotesk',system-ui,sans-serif;font-size:.72rem;font-weight:500;color:var(--tx-3);margin-bottom:6px;padding-left:8px;border-left:3px solid var(--accent);text-transform:uppercase;letter-spacing:.5px}
.fhint{font-size:.68rem;color:var(--tx-3);margin-top:5px;padding-left:8px;border-left:2px solid var(--bd);line-height:1.5}
.fgroup{margin-bottom:16px}
.finput,.fselect{width:100%;max-width:100%;background:var(--bg-3);border:1px solid var(--bd);border-radius:var(--r);padding:9px 12px;font-family:'JetBrains Mono',monospace;font-size:.83rem;color:var(--tx);caret-color:var(--accent);transition:var(--trans);outline:none;appearance:none;-webkit-appearance:none}
.finput:focus,.fselect:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(221,0,0,.18)}
.finput::placeholder{color:var(--tx-4)}
.fselect{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23dd0000' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px;cursor:pointer}
.input-row{display:flex;gap:8px}
.input-row{max-width:100%}
.input-row .finput{flex:1;min-width:0}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--r);font-family:'Space Grotesk',system-ui,sans-serif;font-size:.82rem;font-weight:500;cursor:pointer;border:1px solid transparent;transition:var(--trans);text-decoration:none;white-space:nowrap;flex-shrink:0}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 0 12px rgba(221,0,0,.25)}
.btn-primary:hover{background:var(--accent-h);border-color:var(--accent-h);transform:translateY(-1px);box-shadow:0 0 20px rgba(221,0,0,.4)}
.btn-primary:disabled{opacity:.5;transform:none;cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--tx-2);border-color:var(--bd)}
.btn-ghost:hover{border-color:var(--bd-2);color:var(--tx)}
.btn-outline{background:transparent;color:var(--accent);border-color:var(--accent)}
.btn-outline:hover{background:var(--accent-glow)}
.btn-success{background:var(--grn);color:#fff;border-color:var(--grn)}
.btn-warn{background:transparent;color:var(--yel);border-color:var(--yel)}
.btn-warn:hover{background:rgba(217,119,6,.1)}
.btn-full{width:100%;justify-content:center}
.btn-sm{padding:6px 13px;font-size:.78rem}
.btn-xs{padding:4px 9px;font-size:.72rem}

/* ── Alerts ── */
.alert{display:flex;align-items:flex-start;gap:8px;padding:10px 12px;border:1px solid;border-radius:var(--r);font-size:.79rem;line-height:1.5;margin-bottom:12px}
.alert-icon{flex-shrink:0;font-size:.9rem}
.alert--ok {background:rgba(22,163,74,.08);border-color:rgba(22,163,74,.4);color:#4ade80}
.alert--err{background:rgba(221,0,0,.08);border-color:rgba(221,0,0,.4);color:#f87171}
.alert--warn{background:rgba(217,119,6,.08);border-color:rgba(217,119,6,.4);color:#fbbf24}
.alert--info{background:rgba(59,130,246,.08);border-color:rgba(59,130,246,.4);color:#60a5fa}

/* ── Result Box ── */
.result-box{background:var(--bg-3);border:1px solid var(--bd);border-radius:var(--r);padding:12px 14px;margin-bottom:8px;position:relative;transition:var(--trans)}
.result-box.has-result{border-color:rgba(221,0,0,.3)}
.result-label{font-size:.62rem;font-family:'Space Grotesk',system-ui,sans-serif;text-transform:uppercase;letter-spacing:1px;color:var(--tx-3);margin-bottom:5px}
.result-value{font-family:'JetBrains Mono',monospace;font-size:.95rem;font-weight:700;color:var(--accent);word-break:break-all;line-height:1.5}
.result-value.large{font-family:'Space Grotesk',system-ui,sans-serif;font-size:1.35rem}
.result-value.green{color:var(--grn)}
.result-value.blue{color:var(--blu)}
.copy-btn{position:absolute;top:10px;right:10px;background:none;border:1px solid var(--bd);border-radius:var(--r);color:var(--tx-3);font-size:.68rem;padding:3px 8px;cursor:pointer;font-family:'JetBrains Mono',monospace;transition:var(--trans);display:flex;align-items:center;gap:4px}
.copy-btn:hover{border-color:var(--accent);color:var(--accent)}
.copy-btn.copied{color:var(--grn);border-color:var(--grn)}

/* ── Info Rows ── */
.info-rows{margin-top:14px}
.info-section-title{font-size:.6rem;text-transform:uppercase;letter-spacing:2px;color:var(--tx-4);margin-bottom:8px;margin-top:14px}
.info-row{display:flex;justify-content:space-between;align-items:center;padding:7px 0;border-bottom:1px solid var(--bd);gap:12px}
.info-row:last-child{border-bottom:none}
.info-key{font-size:.74rem;color:var(--tx-3);font-family:'Space Grotesk',system-ui,sans-serif;flex-shrink:0}
.info-val{font-size:.74rem;font-family:'JetBrains Mono',monospace;font-weight:700;color:var(--tx);text-align:right;word-break:break-all}
.info-val.red{color:var(--accent)}
.info-val.green{color:var(--grn)}
.info-val.yellow{color:var(--yel)}
.info-val.blue{color:var(--blu)}
.info-val.purple{color:var(--prp)}

/* ── Live Clock ── */
.live-clock{text-align:center;padding:18px 0 10px}
.clock-unix{font-family:'Space Grotesk',system-ui,sans-serif;font-size:2rem;font-weight:900;color:var(--accent);letter-spacing:3px;line-height:1;overflow-wrap:anywhere}
.clock-label{font-size:.62rem;text-transform:uppercase;letter-spacing:2px;color:var(--tx-3);margin-top:4px;font-family:'Space Grotesk',system-ui,sans-serif}
.clock-human{font-family:'JetBrains Mono',monospace;font-size:.82rem;color:var(--tx-2);margin-top:8px}
.clock-relative{font-size:.68rem;color:var(--tx-3);margin-top:4px;font-family:'JetBrains Mono',monospace}

/* ── Stat Cards ── */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(120px,100%),1fr));gap:10px;margin-bottom:0}
.stat-card{background:var(--bg-2);border:1px solid var(--bd);border-radius:var(--rl);padding:14px 16px;transition:var(--trans);position:relative;overflow:hidden}
.stat-card:hover{transform:translateY(-2px)}
.stat-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--accent);transform:scaleX(0);transition:transform var(--trans)}
.stat-card:hover::after{transform:scaleX(1)}
.stat-val{font-family:'Space Grotesk',system-ui,sans-serif;font-size:1.3rem;font-weight:700;line-height:1;margin-bottom:4px}
.stat-lbl{font-size:.62rem;text-transform:uppercase;letter-spacing:1px;color:var(--tx-3);font-family:'Space Grotesk',system-ui,sans-serif}

/* ── Timezone Grid ── */
.tz-filter-bar{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap;align-items:center}
.tz-search{flex:1;min-width:160px}
.tz-region-tabs{display:flex;gap:4px;flex-wrap:wrap}
.region-btn{font-size:.68rem;padding:4px 10px;background:var(--bg-3);border:1px solid var(--bd);border-radius:20px;color:var(--tx-3);cursor:pointer;transition:var(--trans);font-family:'Space Grotesk',system-ui,sans-serif;white-space:nowrap}
.region-btn:hover{border-color:var(--bd-2);color:var(--tx)}
.region-btn.active{background:rgba(221,0,0,.12);border-color:var(--accent);color:var(--accent)}
.tz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:10px}
.tz-card{background:var(--bg-3);border:1px solid var(--bd);border-radius:var(--r);padding:12px 14px;transition:var(--trans)}
.tz-card:hover{border-color:var(--bd-2)}
.tz-card.india{border-color:rgba(221,0,0,.4);background:rgba(221,0,0,.04)}
.tz-card.hidden{display:none}
.tz-name{font-size:.68rem;font-family:'Space Grotesk',system-ui,sans-serif;font-weight:500;text-transform:uppercase;letter-spacing:.8px;color:var(--tx-3);margin-bottom:4px;display:flex;align-items:center;gap:6px}
.tz-flag{font-size:.9rem}
.tz-badge{font-size:.55rem;background:rgba(221,0,0,.15);color:var(--accent);border:1px solid rgba(221,0,0,.3);border-radius:20px;padding:1px 5px;font-family:'JetBrains Mono',monospace}
.tz-time{font-family:'JetBrains Mono',monospace;font-size:.9rem;font-weight:700;color:var(--tx)}
.tz-time-12{font-family:'JetBrains Mono',monospace;font-size:.7rem;color:var(--tx-3);margin-top:1px}
.tz-offset{font-size:.65rem;color:var(--tx-3);font-family:'JetBrains Mono',monospace;margin-top:3px}

/* ── Diff Panel ── */
.diff-breakdown{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:14px}
.diff-unit{background:var(--bg-3);border:1px solid var(--bd);border-radius:var(--r);padding:10px;text-align:center}
.diff-unit-val{font-family:'Space Grotesk',system-ui,sans-serif;font-size:1.1rem;font-weight:700;color:var(--accent)}
.diff-unit-lbl{font-size:.6rem;text-transform:uppercase;letter-spacing:1px;color:var(--tx-3);margin-top:3px;font-family:'Space Grotesk',system-ui,sans-serif}

/* ── Batch Converter ── */
.batch-textarea{min-height:120px;resize:vertical;line-height:1.6}
.batch-results{margin-top:14px}
.batch-row{display:flex;align-items:flex-start;gap:10px;padding:8px 10px;border:1px solid var(--bd);border-radius:var(--r);margin-bottom:6px;background:var(--bg-3);font-family:'JetBrains Mono',monospace;font-size:.76rem}
.batch-row.ok{border-color:rgba(22,163,74,.3)}
.batch-row.err{border-color:rgba(221,0,0,.3);color:#f87171}
.batch-row-idx{color:var(--tx-4);min-width:22px;flex-shrink:0}
.batch-row-val{color:var(--accent);font-weight:700;margin-right:8px;flex-shrink:0}
.batch-row-ist{color:var(--grn);flex:1}
.batch-row-rel{color:var(--tx-3);font-size:.68rem}

/* ── Countdown ── */
.countdown-display{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:16px 0}
.cd-unit{background:var(--bg-3);border:1px solid var(--bd);border-radius:var(--rl);padding:14px 10px;text-align:center;position:relative;overflow:hidden}
.cd-unit::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent)}
.cd-val{font-family:'Space Grotesk',system-ui,sans-serif;font-size:1.6rem;font-weight:900;color:var(--accent);line-height:1;transition:color var(--trans)}
.cd-lbl{font-size:.6rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--tx-3);margin-top:5px;font-family:'Space Grotesk',system-ui,sans-serif}
.cd-unit.is-past .cd-val{color:var(--tx-3)}
.cd-status{text-align:center;font-family:'JetBrains Mono',monospace;font-size:.82rem;color:var(--tx-2);margin-top:8px}
.cd-human{text-align:center;font-family:'Space Grotesk',system-ui,sans-serif;font-size:.9rem;color:var(--accent);margin-top:4px}

/* ── Custom Format ── */
.format-tokens{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;margin-bottom:12px}
.token-chip{font-family:'JetBrains Mono',monospace;font-size:.68rem;background:var(--bg-3);border:1px solid var(--bd);border-radius:var(--r);padding:3px 8px;cursor:pointer;color:var(--tx-2);transition:var(--trans)}
.token-chip:hover{border-color:var(--accent);color:var(--accent)}
.token-chip .tok-char{color:var(--accent);font-weight:700}

/* ── Date Arithmetic ── */
.date-arith-grid{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:end}
@media(max-width:600px){.date-arith-grid{grid-template-columns:1fr 1fr}}

/* ── History Modal ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);backdrop-filter:blur(8px);z-index:2000;display:flex;align-items:center;justify-content:center;padding:16px}
.modal-overlay.hidden{display:none}
.modal-box{background:var(--bg-2);border:1px solid var(--bd);border-radius:var(--rl);max-width:680px;width:100%;max-height:85vh;display:flex;flex-direction:column;position:relative}
.modal-box::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);border-radius:var(--rl) var(--rl) 0 0}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--bd)}
.modal-title{font-family:'JetBrains Mono',monospace;font-size:.82rem;color:var(--tx-2)}
.modal-close{width:28px;height:28px;background:none;border:1px solid var(--bd);border-radius:var(--r);color:var(--tx-3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--trans);font-size:.9rem}
.modal-close:hover{border-color:var(--accent);color:var(--accent)}
.modal-body{overflow-y:auto;padding:16px 18px;flex:1}
.history-item{border:1px solid var(--bd);border-radius:var(--r);padding:10px 12px;margin-bottom:8px;transition:var(--trans);cursor:pointer}
.history-item:hover{border-color:var(--accent);background:var(--accent-glow)}
.history-item-type{font-size:.6rem;text-transform:uppercase;letter-spacing:1px;color:var(--tx-3);margin-bottom:4px;font-family:'Space Grotesk',system-ui,sans-serif}
.history-item-main{font-family:'JetBrains Mono',monospace;font-size:.8rem;color:var(--accent);font-weight:700}
.history-item-sub{font-size:.7rem;color:var(--tx-3);margin-top:2px;font-family:'JetBrains Mono',monospace}
.history-empty{text-align:center;padding:32px;color:var(--tx-4);font-size:.8rem;font-family:'JetBrains Mono',monospace}
.modal-footer{padding:12px 18px;border-top:1px solid var(--bd);display:flex;justify-content:space-between;align-items:center}

/* ── Toast ── */
#toast-container{position:fixed;bottom:16px;right:16px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{background:var(--bg-2);border-radius:var(--r);padding:10px 16px;font-size:.79rem;font-family:'Space Grotesk',system-ui,sans-serif;display:flex;align-items:center;gap:8px;min-width:200px;max-width:320px;box-shadow:var(--shadow);animation:slideUp .2s ease;border:1px solid;pointer-events:all}
.toast.ok  {border-color:rgba(22,163,74,.5);color:#4ade80}
.toast.err {border-color:rgba(221,0,0,.5);color:#f87171}
.toast.warn{border-color:rgba(217,119,6,.5);color:#fbbf24}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* ── Footer ── */
.site-footer{background:var(--bg-1);border-top:1px solid var(--bd);padding:14px 20px;text-align:center;font-size:.68rem;color:var(--tx-3);font-family:'JetBrains Mono',monospace;position:relative;z-index:2;margin-top:20px}
.site-footer a{color:var(--accent);text-decoration:none}

/* ── Misc ── */
.section-gap{margin-bottom:0}
.divider{border:none;border-top:1px solid var(--bd);margin:16px 0}
.monospace{font-family:'JetBrains Mono',monospace}
.no-results-msg{text-align:center;padding:24px;color:var(--tx-4);font-size:.78rem;font-family:'JetBrains Mono',monospace}

/* ── Scrollbar ── */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--bd-2);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}
::selection{background:rgba(221,0,0,.25);color:var(--tx)}

/* ── Responsive ── */
@media(max-width:768px){
  .pg-title{font-size:1.1rem}
  .clock-unix{font-size:1.5rem;letter-spacing:1px}
  .tz-grid{grid-template-columns:1fr 1fr}
  .countdown-display{grid-template-columns:repeat(2,1fr)}
  .diff-breakdown{grid-template-columns:repeat(2,1fr)}
  .date-arith-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .tz-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .history-btn .history-label{display:none}
}