/* kronometre.org — ferah, aydınlık tema */
:root{
  --bg:#F6FAF9;
  --surface:#FFFFFF;
  --ink:#0F2A2E;
  --ink-soft:#4A6468;
  --line:#DDE9E7;
  --accent:#0E7C6B;
  --accent-soft:#E3F4F0;
  --amber:#E8A13C;
  --radius:16px;
  --maxw:1080px;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-display:'Space Grotesk',var(--font-body);
  --font-mono:'IBM Plex Mono','SFMono-Regular',Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.65;font-size:17px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}

/* Header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-family:var(--font-display);font-weight:700;font-size:1.35rem;color:var(--ink);display:flex;align-items:center;gap:10px}
.logo:hover{text-decoration:none}
.logo-dot{width:14px;height:14px;border-radius:50%;background:var(--accent);position:relative;flex-shrink:0}
.logo-dot::after{content:"";position:absolute;top:-4px;left:5px;width:4px;height:6px;background:var(--accent);border-radius:2px}
.main-nav{display:flex;gap:6px;flex-wrap:wrap}
.main-nav a{padding:8px 14px;border-radius:999px;color:var(--ink-soft);font-weight:500;font-size:.95rem}
.main-nav a:hover{background:var(--accent-soft);color:var(--accent);text-decoration:none}
.main-nav a[aria-current="page"]{background:var(--accent);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:1.1rem;cursor:pointer;color:var(--ink)}

/* Layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
main{padding:48px 0 72px}
.page-title{font-family:var(--font-display);font-size:clamp(1.9rem,4vw,2.6rem);line-height:1.15;margin-bottom:8px}
.page-lead{color:var(--ink-soft);font-size:1.1rem;max-width:62ch;margin-bottom:36px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}

/* Stopwatch hero */
.timer-card{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:40px 24px;text-align:center;box-shadow:0 8px 30px rgba(15,42,46,.06)}
.mode-tabs{display:inline-flex;background:var(--accent-soft);border-radius:999px;padding:4px;margin-bottom:28px}
.mode-tabs button{border:0;background:transparent;padding:9px 22px;border-radius:999px;font:600 .95rem var(--font-body);color:var(--accent);cursor:pointer}
.mode-tabs button[aria-selected="true"]{background:var(--accent);color:#fff}
.time-display{font-family:var(--font-mono);font-weight:600;font-size:clamp(3rem,12vw,6.5rem);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1}
.time-display .ms{font-size:.45em;color:var(--ink-soft)}
.timer-controls{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}
.btn{font:600 1rem var(--font-body);border:0;border-radius:999px;padding:14px 32px;cursor:pointer;transition:transform .1s ease,box-shadow .15s ease}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(14,124,107,.35)}
.btn-primary:hover{box-shadow:0 6px 20px rgba(14,124,107,.45)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--accent-soft)}
.btn-amber{background:var(--amber);color:#3d2a08}
.countdown-inputs{display:flex;gap:10px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.countdown-inputs label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--ink-soft)}
.countdown-inputs input{width:88px;padding:12px;font:600 1.3rem var(--font-mono);text-align:center;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink)}
.hidden{display:none !important}

/* Laps */
.laps{max-width:520px;margin:32px auto 0;text-align:left}
.laps table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.laps th,.laps td{padding:10px 14px;border-bottom:1px solid var(--line);font-size:.95rem}
.laps th{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);text-align:left}
.laps td.mono{font-family:var(--font-mono)}
.lap-best{color:var(--accent);font-weight:600}
.lap-worst{color:var(--amber);font-weight:600}

/* Content sections */
.section{margin-top:64px}
.section h2{font-family:var(--font-display);font-size:1.6rem;margin-bottom:14px}
.section h3{font-family:var(--font-display);font-size:1.2rem;margin:26px 0 10px}
.section p{margin-bottom:14px;max-width:70ch}
.section ul,.section ol{margin:0 0 16px 22px;max-width:68ch}
.section li{margin-bottom:6px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-top:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{margin:0 0 8px;font-size:1.05rem;font-family:var(--font-display)}
.card p{font-size:.95rem;color:var(--ink-soft);margin:0}
blockquote{border-left:4px solid var(--accent);background:var(--accent-soft);padding:16px 20px;border-radius:0 12px 12px 0;margin:20px 0;max-width:68ch}
.data-table{width:100%;border-collapse:collapse;margin:16px 0;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.data-table th,.data-table td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:.95rem}
.data-table th{background:var(--accent-soft);color:var(--ink);font-weight:600}
.data-table tr:last-child td{border-bottom:0}

/* FAQ */
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 20px}
details summary{padding:16px 0;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
details summary::after{content:"+";font-size:1.3rem;color:var(--accent)}
details[open] summary::after{content:"–"}
details p{padding-bottom:16px;color:var(--ink-soft)}

/* Forms */
.form{max-width:560px;display:grid;gap:16px}
.form label{font-weight:600;font-size:.92rem}
.form input,.form textarea,.form select{width:100%;margin-top:6px;padding:13px 14px;border:1px solid var(--line);border-radius:12px;font:1rem var(--font-body);background:var(--surface);color:var(--ink)}
.form textarea{min-height:140px;resize:vertical}

/* Footer */
.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:36px 20px;display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;color:var(--ink-soft);font-size:.92rem}
.footer-inner nav{display:flex;gap:18px;flex-wrap:wrap}

@media(max-width:720px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--line);flex-direction:column;padding:12px 20px}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px}
  main{padding:28px 0 56px}
  .timer-card{padding:28px 14px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* ---- Eklentiler: karanlık mod, chip, pomodoro, tepki testi ---- */
html[data-theme="dark"]{
  --bg:#0E1A1C;--surface:#152528;--ink:#E7F2F0;--ink-soft:#9DB8B4;
  --line:#24393C;--accent:#2FB39B;--accent-soft:#173832;--amber:#E8A13C;
}
html[data-theme="dark"] .timer-card{box-shadow:0 8px 30px rgba(0,0,0,.35)}
.header-actions{display:flex;align-items:center;gap:8px}
.theme-toggle{background:none;border:1px solid var(--line);border-radius:10px;padding:7px 10px;font-size:1rem;cursor:pointer;line-height:1}
.theme-toggle:hover{background:var(--accent-soft)}

.preset-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:20px}
.chip{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:8px 16px;font:600 .9rem var(--font-body);cursor:pointer}
.chip:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}

.card-link{display:block;color:inherit;transition:border-color .15s ease,transform .15s ease}
.card-link:hover{text-decoration:none;border-color:var(--accent);transform:translateY(-2px)}
.stat{font:600 1.6rem var(--font-mono);color:var(--accent)}
.muted{color:var(--ink-soft)}
.laps-actions{margin-top:14px;text-align:center}
.calc-result{margin-top:22px;font-size:1.25rem}

/* Pomodoro */
.pomo-phase{font:600 1.1rem var(--font-display);color:var(--accent);margin-bottom:6px}
.pomo-dots{display:flex;gap:10px;justify-content:center;margin-top:16px}
.pomo-dots span{width:14px;height:14px;border-radius:50%;border:2px solid var(--accent);display:inline-block}
.pomo-dots span.done{background:var(--accent)}
.pomo-settings{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.pomo-settings label{display:flex;flex-direction:column;gap:6px;font-size:.82rem;color:var(--ink-soft)}
.pomo-settings input{width:92px;padding:10px;font:600 1.1rem var(--font-mono);text-align:center;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink)}

/* Tepki testi */
.reaction-box{cursor:pointer;user-select:none;min-height:280px;display:flex;flex-direction:column;justify-content:center;align-items:center;transition:background .1s ease}
.reaction-text{font:700 clamp(1.6rem,5vw,2.6rem) var(--font-display)}
.reaction-sub{color:var(--ink-soft);margin-top:10px;max-width:46ch}
.rx-wait{background:#C64B3C !important;border-color:#C64B3C !important}
.rx-wait .reaction-text,.rx-wait .reaction-sub{color:#fff}
.rx-go{background:#1EA672 !important;border-color:#1EA672 !important}
.rx-go .reaction-text{color:#fff;font-size:clamp(2.2rem,8vw,4rem)}
.rx-early{background:var(--amber) !important;border-color:var(--amber) !important}
.rx-early .reaction-text,.rx-early .reaction-sub{color:#3d2a08}

/* Tarih girişleri */
.daycalc-inputs input[type=date],.countdown-inputs input[type=time]{width:auto;min-width:170px;font-size:1.05rem}

/* Tam ekran */
.timer-card:fullscreen{display:flex;flex-direction:column;justify-content:center;align-items:center;border-radius:0;background:var(--bg)}
.timer-card:fullscreen .time-display{font-size:clamp(6rem,22vw,16rem)}

/* Footer sütunları */
.footer-inner{align-items:flex-start}
.footer-col{display:flex;flex-direction:column;gap:8px;min-width:160px;max-width:260px}
.footer-col strong{color:var(--ink);margin-bottom:2px}
.footer-col p{margin:0;font-size:.88rem}
.footer-col a{color:var(--ink-soft)}
.footer-col a:hover{color:var(--accent)}

/* ---------- Ek bileşenler ---------- */
.header-actions{display:flex;align-items:center;gap:8px;order:3}
.theme-toggle{background:none;border:1px solid var(--line);border-radius:10px;padding:7px 11px;font-size:1rem;cursor:pointer;line-height:1}
.theme-toggle:hover{background:var(--accent-soft)}
@media(min-width:721px){.header-inner{flex-wrap:nowrap}.main-nav{order:2}.header-actions{order:3}}

.preset-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:20px}
.chip{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:8px 16px;font:500 .9rem var(--font-body);cursor:pointer}
.chip:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}

.card-link{display:block;color:inherit;transition:transform .12s ease,box-shadow .15s ease}
.card-link:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 8px 22px rgba(15,42,46,.1);border-color:var(--accent)}
.stat{font:600 1.5rem var(--font-mono);color:var(--accent)}
.muted{color:var(--ink-soft)}
.calc-result{margin-top:22px;font-size:1.25rem;min-height:1.5em}

/* Pomodoro */
.pomo-phase{font:600 1.1rem var(--font-display);color:var(--accent);margin-bottom:8px}
.pomo-dots{display:flex;gap:8px;justify-content:center;margin-top:16px}
.pomo-dots span{width:12px;height:12px;border-radius:50%;border:2px solid var(--accent);display:inline-block}
.pomo-dots span.done{background:var(--accent)}
.pomo-settings{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.pomo-settings label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--ink-soft)}
.pomo-settings input{width:90px;padding:10px;font:600 1.05rem var(--font-mono);text-align:center;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink)}

/* Tepki testi */
.reaction-box{cursor:pointer;user-select:none;min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;transition:background .15s ease}
.reaction-text{font:600 clamp(1.4rem,5vw,2.2rem) var(--font-display)}
.reaction-sub{color:var(--ink-soft);max-width:46ch}
.rx-wait{background:#E5484D !important;border-color:#E5484D !important}
.rx-wait .reaction-text,.rx-wait .reaction-sub{color:#fff}
.rx-go{background:#2EA043 !important;border-color:#2EA043 !important}
.rx-go .reaction-text{color:#fff;font-size:clamp(2rem,8vw,3.5rem)}
.rx-early{background:var(--amber) !important;border-color:var(--amber) !important}
.rx-early .reaction-text,.rx-early .reaction-sub{color:#3d2a08}

/* Gün hesaplayıcı */
.daycalc-inputs input[type="date"]{width:180px;font-size:1rem}

/* Footer sütunları */
.footer-inner{align-items:flex-start}
.footer-col{display:flex;flex-direction:column;gap:8px;min-width:150px}
.footer-col strong{color:var(--ink);margin-bottom:2px}
.footer-col p{margin:0;max-width:32ch}
.footer-col a{color:var(--ink-soft)}
.footer-col a:hover{color:var(--accent)}

/* Tam ekran görünümü */
.timer-card:fullscreen{display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:0;border:0;background:var(--bg)}
.timer-card:fullscreen .time-display{font-size:clamp(5rem,20vw,16rem)}

/* ---------- Karanlık mod ---------- */
[data-theme="dark"]{
  --bg:#0E1B1D;
  --surface:#15282B;
  --ink:#E8F2F1;
  --ink-soft:#93AEAD;
  --line:#254245;
  --accent:#3AC0A8;
  --accent-soft:#173B38;
  --amber:#E8A13C;
}
[data-theme="dark"] .timer-card{box-shadow:0 8px 30px rgba(0,0,0,.35)}
[data-theme="dark"] .btn-primary{color:#062420}
[data-theme="dark"] .main-nav a[aria-current="page"]{color:#062420}