*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#F43F5E;--primary-dim:rgba(244,63,94,.12);
  --secondary:#FB7185;--accent:#10B981;--accent-dim:rgba(16,185,129,.12);
  --bg:#1A0A0F;--surface:#261016;--surface2:#33181F;
  --border:rgba(244,63,94,.1);--text:#FFF1F2;--text-dim:#FDA4AF;
  --radius:12px;--font:'Inter',system-ui,sans-serif;
  --transition:250ms ease;
}
html{font-size:16px;scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;min-height:100vh}
.header{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);background:rgba(26,10,15,.8);border-bottom:1px solid var(--border)}
.header-inner{max-width:600px;margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center}
.logo{display:flex;align-items:center;gap:.5rem}
.logo-icon{font-size:1.25rem}
.logo h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.btn{display:inline-flex;align-items:center;gap:.3rem;padding:.5rem 1rem;border:none;border-radius:8px;font-size:.85rem;font-weight:700;cursor:pointer;transition:all var(--transition);font-family:var(--font)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.btn-primary:hover{filter:brightness(1.15);transform:translateY(-1px)}
.btn-sm{background:var(--surface2);color:var(--text-dim);border:1px solid var(--border)}
.btn-sm:hover{border-color:var(--primary);color:var(--primary)}
.main{max-width:600px;margin:0 auto;padding:1.5rem}
.glass-card{background:rgba(38,16,22,.6);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1.25rem}
.section-title{font-size:.9rem;font-weight:700;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}
.section-title::before{content:'';width:4px;height:18px;background:linear-gradient(to bottom,var(--primary),var(--secondary));border-radius:2px}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem;margin-bottom:1.25rem}
.stat-card{background:rgba(38,16,22,.6);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:.6rem;text-align:center}
.stat-val{font-size:1.3rem;font-weight:800;color:var(--primary)}
.stat-label{font-size:.6rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.timer-card{background:rgba(38,16,22,.6);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:2rem 1.25rem;margin-bottom:1.25rem;text-align:center}
.mode-tabs{display:flex;gap:.3rem;justify-content:center;margin-bottom:1rem}
.mode-tab{padding:.3rem .75rem;background:var(--surface2);border:1px solid var(--border);border-radius:8px;cursor:pointer;font-size:.75rem;font-weight:600;color:var(--text-dim);transition:all var(--transition);font-family:var(--font)}
.mode-tab:hover,.mode-tab.active{border-color:var(--primary);color:var(--primary);background:var(--primary-dim)}
.timer-display{font-size:5rem;font-weight:800;letter-spacing:-2px;font-variant-numeric:tabular-nums;margin-bottom:.5rem;color:var(--text)}
.round-dots{display:flex;gap:.3rem;justify-content:center;margin-bottom:1rem}
.round-dot{width:10px;height:10px;border-radius:50%;background:var(--surface2);border:1px solid var(--border)}
.round-dot.done{background:var(--primary)}
.task-row{margin-bottom:1rem}
.task-input{width:100%;max-width:300px;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.5rem;color:var(--text);font-family:var(--font);font-size:.8rem;outline:none;text-align:center}
.task-input:focus{border-color:var(--primary)}
.timer-controls{display:flex;gap:.5rem;justify-content:center}
.session-item{display:flex;justify-content:space-between;align-items:center;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.4rem .6rem;margin-bottom:.3rem;font-size:.75rem}
.si-task{color:var(--text-dim)}
.si-time{color:var(--primary);font-weight:700}
.toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);background:var(--surface2);color:var(--text);padding:.6rem 1.25rem;border-radius:var(--radius);font-size:.8rem;font-weight:500;border:1px solid var(--primary);box-shadow:0 8px 32px rgba(0,0,0,.4);transition:transform 300ms ease;z-index:9999;pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}
@media(max-width:600px){.stats-row{grid-template-columns:repeat(2,1fr)}.timer-display{font-size:3.5rem}.main{padding:1rem}}