.calc-modal{position:fixed;z-index:var(--z-modal);background:var(--color-bg-card);border:var(--border-normal);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);overflow:hidden;display:flex;flex-direction:column;font-family:var(--font-body);color:var(--color-text-primary);transform:translateZ(0)}.calc-modal__header{height:40px;display:flex;align-items:center;justify-content:space-between;padding:0 .5rem 0 .95rem;background:linear-gradient(180deg,var(--color-brand-navy) 0,var(--color-brand-navy-d) 100%);color:var(--color-text-on-brand);cursor:grab;-webkit-user-select:none;-moz-user-select:none;user-select:none}.calc-modal__header:active{cursor:grabbing}.calc-modal__title{font-family:var(--font-heading);font-size:var(--text-sm);font-weight:var(--weight-semibold);letter-spacing:-.01em}.calc-modal__actions{display:flex;align-items:center;gap:.2rem}.calc-modal__btn{width:28px;height:28px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-on-brand);font-family:var(--font-body);font-size:1.1rem;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background var(--transition-fast)}.calc-modal__btn:hover{background:hsla(0,0%,100%,.18)}.calc-modal__btn--close{font-size:1.4rem;font-weight:var(--weight-bold)}.calc-modal__toolbar{background:var(--color-bg-subtle);border-bottom:var(--border-light);padding:.4rem .5rem;overflow-x:auto}.calc-modal__body{background:var(--color-bg-app);overflow:auto}.calc-tabstrip{display:flex;gap:.3rem;white-space:nowrap}.calc-tabstrip__tab-wrap{position:relative;display:inline-flex;align-items:stretch}.calc-tabstrip__fav{background:transparent;border:1px solid transparent;color:#9ca3af;font-size:1.05rem;line-height:1;padding:0 .35rem;cursor:pointer;border-radius:4px 0 0 4px;display:inline-flex;align-items:center;justify-content:center;transition:color .12s ease,background-color .12s ease}.calc-tabstrip__fav:hover{color:#f59e0b;background:rgba(245,158,11,.08)}.calc-tabstrip__fav[aria-pressed=true]{color:#f59e0b}.calc-tabstrip__tab-wrap--fav .calc-tabstrip__tab{border-top:2px solid #f59e0b}.calc-tabstrip__tab{display:inline-flex;flex-direction:column;align-items:flex-start;gap:.05rem;padding:.3rem .6rem;border:var(--border-light);border-radius:var(--radius-md);background:var(--color-bg-card);cursor:pointer;font-family:var(--font-body);transition:background var(--transition-fast),border-color var(--transition-fast)}.calc-tabstrip__tab:hover{border-color:var(--color-brand-navy);background:var(--color-bg-hover)}.calc-tabstrip__tab--active{border-color:var(--color-brand-navy);background:var(--color-brand-navy);color:var(--color-text-on-brand)}.calc-tabstrip__brand{font-family:var(--font-heading);font-size:.6rem;font-weight:var(--weight-bold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);line-height:1}.calc-tabstrip__tab--active .calc-tabstrip__brand{color:hsla(0,0%,100%,.6)}.calc-tabstrip__label{font-family:var(--font-body);font-size:.75rem;font-weight:var(--weight-semibold);color:var(--color-text-primary);line-height:1.2}.calc-tabstrip__tab--active .calc-tabstrip__label{color:var(--color-text-on-brand)}.calc-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1.5rem;text-align:center;height:100%;gap:.5rem}.calc-placeholder__brand{font-family:var(--font-heading);font-size:.7rem;font-weight:var(--weight-bold);text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-muted)}.calc-placeholder__title{font-family:var(--font-heading);font-size:var(--text-xl);font-weight:var(--weight-semibold);color:var(--color-brand-navy);margin:0}.calc-placeholder__phase{font-family:var(--font-body);font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.calc-placeholder__phase code{font-family:var(--font-mono);font-size:.78rem;background:var(--color-bg-subtle);padding:.05rem .3rem;border-radius:var(--radius-sm)}.calc-placeholder__hint{font-family:var(--font-body);font-size:.78rem;color:var(--color-text-tertiary);max-width:280px;line-height:1.4}.calc-placeholder__hint kbd{font-family:var(--font-mono);font-size:.68rem;background:var(--color-bg-subtle);border:var(--border-light);border-bottom-width:2px;padding:.05rem .3rem;border-radius:var(--radius-sm)}.calc-history{height:58px;min-height:58px;max-height:58px;overflow-y:scroll;overflow-x:hidden;display:flex;flex-direction:column;gap:1px;background:rgba(0,0,0,.2);border-radius:var(--radius-sm);padding:2px;scrollbar-width:thin;scrollbar-color:hsla(0,0%,100%,.35) transparent}.calc-history::-webkit-scrollbar{width:6px}.calc-history::-webkit-scrollbar-track{background:transparent}.calc-history::-webkit-scrollbar-thumb{background:hsla(0,0%,100%,.35);border-radius:3px}.calc-history::-webkit-scrollbar-thumb:hover{background:hsla(0,0%,100%,.6)}.calc-history__row{display:flex;align-items:baseline;justify-content:flex-end;gap:.3rem;padding:.15rem .4rem;background:rgba(200,208,197,.85);border:0;border-radius:2px;font-family:JetBrains Mono,ui-monospace,monospace;font-size:.7rem;color:rgba(10,13,8,.85);cursor:pointer;text-align:right;overflow:hidden;flex-shrink:0}.calc-history__row:hover{background:#c8d0c5}.calc-history__entry{flex:1;text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(10,13,8,.65)}.calc-history__sep{color:rgba(10,13,8,.5);font-weight:600}.calc-history__result{font-weight:700;white-space:nowrap}.calc-display{background:linear-gradient(180deg,#c8d0c5,#b8c0b3);color:#0a0d08;padding:.5rem .65rem .55rem;border-radius:var(--radius-sm);font-family:JetBrains Mono,ui-monospace,monospace;border:1px solid #6f7867;box-shadow:inset 0 1px 3px rgba(0,0,0,.15);min-height:72px;display:flex;flex-direction:column;gap:.15rem}.calc-display__status{display:flex;gap:.4rem;font-size:.55rem;letter-spacing:.08em;font-weight:600;color:rgba(10,13,8,.65);text-transform:uppercase;min-height:12px}.calc-display__badge{padding:0 .2rem}.calc-display__entry{font-size:.78rem;text-align:right;color:rgba(10,13,8,.7);min-height:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.calc-display__result-row{display:flex;align-items:baseline;gap:.3rem}.calc-display__result{font-size:1.45rem;font-weight:700;text-align:right;flex:1;letter-spacing:-.01em;font-family:JetBrains Mono,ui-monospace,monospace}.calc-display__copy{width:22px;height:22px;padding:0;border:1px solid rgba(10,13,8,.25);border-radius:var(--radius-sm);background:hsla(0,0%,100%,.25);color:#0a0d08;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background var(--transition-fast)}.calc-display__copy:hover{background:hsla(0,0%,100%,.45)}.calc-model{display:flex;flex-direction:column;gap:.5rem;padding:.6rem;height:100%;background:linear-gradient(180deg,#1a1a1f,#0e0e12);box-sizing:border-box}.calc-keypad{display:grid;gap:4px;flex:1;min-height:0}.calc-key{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:.1rem .25rem;border-radius:6px;font-family:var(--font-body);font-weight:700;border:1px solid rgba(0,0,0,.25);cursor:pointer;transition:transform .06s ease,box-shadow .06s ease,filter .06s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none;background:linear-gradient(180deg,#d0d4d8,#a8acb2);color:#0a0d08;font-size:.8rem;box-shadow:inset 0 1px 0 hsla(0,0%,100%,.4),0 2px 3px rgba(0,0,0,.35)}.calc-key:hover{filter:brightness(1.05)}.calc-key:active{transform:translateY(1px);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.4)}.calc-key__shift-label{font-size:.62rem;font-weight:800;color:#2563eb;margin-bottom:1px;line-height:1;text-transform:lowercase;letter-spacing:.01em}.calc-key__label{line-height:1.1;font-weight:700}.calc-key--digit{background:linear-gradient(180deg,#f0f1f3,#c5c8cd);font-size:1rem;font-weight:800}.calc-key--op{background:linear-gradient(180deg,#303440,#1c1f29);color:#f0f1f3;font-size:1.05rem}.calc-key--eval{background:linear-gradient(180deg,#c4341a,#8a200d);color:#fff;font-size:1.1rem;font-weight:800}.calc-key--shift{background:linear-gradient(180deg,#f7c948,#d1990c);color:#2b1a00;font-size:.9rem}.calc-key--shift.calc-key--armed{outline:2px solid #fff;outline-offset:1px}.calc-key--accent{background:linear-gradient(180deg,#5b6471,#353c46);color:#f0f1f3;font-size:.88rem}.calc-natural{background:linear-gradient(180deg,#c8d0c5,#b8c0b3);color:#0a0d08;padding:.5rem .65rem .55rem;border-radius:var(--radius-sm);font-family:JetBrains Mono,ui-monospace,monospace;border:1px solid #6f7867;box-shadow:inset 0 1px 3px rgba(0,0,0,.15);min-height:80px;display:flex;flex-direction:column;gap:.2rem}.calc-natural__status{display:flex;gap:.4rem;font-size:.55rem;font-weight:600;letter-spacing:.08em;color:rgba(10,13,8,.65);text-transform:uppercase}.calc-natural__entry{font-size:.9rem;min-height:26px;display:flex;align-items:flex-end;justify-content:flex-end;flex-wrap:nowrap;overflow:hidden;white-space:nowrap;line-height:1}.calc-natural__result-row{display:flex;align-items:baseline;gap:.35rem}.calc-natural__result{flex:1;text-align:right;font-size:1.4rem;font-weight:700;letter-spacing:-.01em}.calc-natural__copy{width:22px;height:22px;padding:0;border:1px solid rgba(10,13,8,.25);border-radius:var(--radius-sm);background:hsla(0,0%,100%,.25);color:#0a0d08;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background var(--transition-fast)}.calc-natural__copy:hover{background:hsla(0,0%,100%,.45)}.calc-natural__sqrt{display:inline-flex;align-items:stretch}.calc-natural__sqrt-sign{align-self:flex-start;font-size:1.1em;line-height:1}.calc-natural__sqrt-body{border-top:1.5px solid;padding:0 .15em;margin-top:.05em}.calc-natural__frac{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;margin:0 .1em;line-height:1}.calc-natural__frac-num{border-bottom:1.5px solid;padding:0 .25em 1px;font-size:.85em}.calc-natural__frac-den{padding:1px .25em 0;font-size:.85em}.calc-natural__sup{font-size:.7em;vertical-align:super;line-height:0}.calc-trigger{display:inline-flex;align-items:center;gap:.35rem;border:var(--border-normal);border-radius:var(--radius-pill);background:var(--color-bg-card);color:var(--color-text-primary);font-family:var(--font-body);font-weight:var(--weight-semibold);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.calc-trigger:hover{background:var(--color-brand-navy);border-color:var(--color-brand-navy);color:var(--color-text-on-brand)}.calc-trigger--sm{padding:.25rem .6rem;font-size:.72rem}.calc-trigger--md{padding:.4rem .85rem;font-size:.82rem}.calc-model--hp-35s{background:linear-gradient(180deg,#2a2c30,#16181a)}.calc-model--hp-35s .calc-key{background:linear-gradient(180deg,#cfd2d6,#989b9f);color:#1a1c20;font-size:.7rem;font-weight:700}.calc-model--hp-35s .calc-key--digit{background:linear-gradient(180deg,#e8eaec,#b0b3b7);font-size:.85rem}.calc-model--hp-35s .calc-key--op{background:linear-gradient(180deg,#2a2d33,#14161a);color:#f0f1f3}.calc-model--hp-35s .calc-key--eval{background:linear-gradient(180deg,#c4341a,#8a200d);color:#fff}.calc-model--hp-35s .calc-key--shift:nth-child(odd){background:linear-gradient(180deg,#d97706,#92400e);color:#1a1c20}.calc-model--hp-35s .calc-key--shift:nth-child(2n){background:linear-gradient(180deg,#2563eb,#1e3a8a);color:#f0f1f3}.calc-model--hp-35s .calc-key--accent{background:linear-gradient(180deg,#6b6f75,#3f4248);color:#f0f1f3;font-size:.78rem}.calc-model--hp-35s .calc-key__shift-label{color:#d97706}.calc-model--ti-30xa{background:linear-gradient(180deg,#4a4d52,#2a2c2f)}.calc-model--ti-30xa .calc-key{background:linear-gradient(180deg,#f4f5f6,#c8cbcf);color:#0c0e10;border:1px solid rgba(0,0,0,.35)}.calc-model--ti-30xa .calc-key--shift{background:linear-gradient(180deg,#56b146,#2e7d2a);color:#fff}.calc-model--ti-30xa .calc-key--digit{font-weight:700}.calc-model--ti-30xa .calc-key--digit,.calc-model--ti-30xa .calc-key--eval,.calc-model--ti-30xa .calc-key--op{background:linear-gradient(180deg,#2a2c2f,#16181b);color:#f5f7f9}.calc-model--ti-30xa .calc-key__shift-label{color:#f0b830;font-weight:700}.calc-model--casio-fx991{background:linear-gradient(180deg,#d6d8db,#8e9094)}.calc-model--casio-fx991 .calc-key--soft .calc-key__shift-label{color:#e6b800}.calc-model--casio-fx991 .calc-key--digit{background:linear-gradient(180deg,#1c1f29,#0f111a);color:#f0f1f3;font-weight:700}.calc-model--casio-fx991 .calc-key--op{background:linear-gradient(180deg,#5a6168,#3a3f46);color:#f0f1f3}.calc-model--casio-fx991 .calc-key--eval{background:linear-gradient(180deg,#e0a500,#b58200);color:#1a1a1a}.calc-model--casio-fx991 .calc-key--shift{background:linear-gradient(180deg,#d4a000,#a07700);color:#1a1a1a}.calc-model--casio-fx115{background:linear-gradient(180deg,#f4f3ef,#d8d4c8)}@media (max-width:480px){.calc-modal{left:50%!important;top:50%!important;transform:translate(-50%,-50%);max-width:calc(100vw - 24px);max-height:calc(100vh - 24px);width:calc(100vw - 24px)!important}.calc-modal__header{cursor:default}.calc-display,.calc-natural{min-height:64px;padding:.4rem .5rem}.calc-display__result,.calc-natural__result{font-size:1.15rem}.calc-key{font-size:.72rem;padding:.05rem .15rem}.calc-key--digit,.calc-key--eval,.calc-key--op{font-size:.9rem}.calc-key__shift-label{font-size:.55rem}.calc-keypad{gap:3px}}@media (max-width:360px){.calc-key__shift-label{display:none}.calc-key{padding:0}}.calc-keypad{touch-action:manipulation;-webkit-tap-highlight-color:rgba(0,0,0,0);-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.generic-calc{display:flex;flex-direction:column;height:100%;width:100%;min-height:0;gap:8px;padding:8px;box-sizing:border-box;container-type:size}.generic-calc__display{flex:0 0 auto;min-height:56px;display:flex;align-items:center;justify-content:flex-end;padding:8px 14px;border-radius:8px;background:#0f172a;color:#f8fafc;font-variant-numeric:tabular-nums;font-weight:600;font-size:clamp(1.5rem,6cqw,3rem);line-height:1.1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.generic-calc__keypad{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:1fr;gap:6px}.generic-calc__key{display:flex;align-items:center;justify-content:center;border:1px solid #334155;border-radius:8px;background:#1e293b;color:#e2e8f0;font-weight:600;font-size:clamp(.95rem,4cqw,1.6rem);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:background .12s ease,transform 60ms ease}.generic-calc__key:hover{background:#334155}.generic-calc__key:active{transform:translateY(1px)}.generic-calc__key--op{background:#1d4ed8;color:#fff;border-color:#1d4ed8}.generic-calc__key--op:hover{background:#2563eb}.generic-calc__key--fn{background:#0f172a;color:#cbd5e1}.generic-calc__key--fn:hover{background:#1e293b}.generic-calc__key--equals{background:#16a34a;color:#fff;border-color:#16a34a}.generic-calc__key--equals:hover{background:#22c55e}.calc-modal__scaler{transform-origin:top left}.calc-modal__resize{position:absolute;right:0;bottom:0;width:18px;height:18px;cursor:nwse-resize;z-index:2;background:linear-gradient(135deg,transparent 0 45%,rgba(148,163,184,.9) 45% 55%,transparent 55% 70%,rgba(148,163,184,.7) 70% 80%,transparent 80%);border-bottom-right-radius:10px}.calc-modal__resize:hover{background:linear-gradient(135deg,transparent 0 45%,#3b82f6 45% 55%,transparent 55% 70%,rgba(59,130,246,.9) 70% 80%,transparent 80%)}.bearing-az{display:flex;flex-direction:column;gap:.85rem;padding:.85rem;height:100%;box-sizing:border-box;font-family:Inter,system-ui,sans-serif;color:#1f2937}.bearing-az__row{display:flex;gap:.4rem}.bearing-az__mode,.bearing-az__quad{flex:1;height:36px;padding:0 .6rem;border:1px solid #cbd5e1;background:#fff;border-radius:8px;font:inherit;font-weight:600;font-size:.85rem;color:#475569;cursor:pointer;transition:background .12s ease,color .12s ease,border-color .12s ease}.bearing-az__mode:hover,.bearing-az__quad:hover{border-color:#1e3a8a;color:#1e3a8a}.bearing-az__mode--active,.bearing-az__quad--active{background:#1e3a8a;border-color:#1e3a8a;color:#fff}.bearing-az__dms{display:grid;grid-template-columns:repeat(3,1fr);gap:.4rem;border:0;padding:0;margin:0}.bearing-az__field{display:flex;flex-direction:column;gap:.2rem}.bearing-az__field-label{font-size:.7rem;font-weight:600;color:#64748b;text-transform:uppercase;letter-spacing:.04em}.bearing-az__input-wrap{position:relative;display:flex;align-items:center}.bearing-az__input-wrap input{flex:1;width:100%;height:38px;padding:0 1.4rem 0 .55rem;border:1px solid #cbd5e1;border-radius:8px;font:inherit;font-size:.95rem;font-variant-numeric:tabular-nums;outline:none;background:#fff;color:#0f172a;box-sizing:border-box;transition:border-color .12s ease}.bearing-az__input-wrap input:focus{border-color:#1e3a8a}.bearing-az__unit{position:absolute;right:.55rem;font-size:.85rem;color:#94a3b8;pointer-events:none}.bearing-az__output{border:1px solid #cbd5e1;border-radius:10px;padding:.65rem .85rem;background:#f8fafc}.bearing-az__output--warn{border-color:#f59e0b;background:#fffbeb}.bearing-az__output-label{font-size:.72rem;font-weight:600;color:#64748b;text-transform:uppercase;letter-spacing:.04em;margin-bottom:.2rem}.bearing-az__output-value{font-size:1.15rem;font-weight:700;font-variant-numeric:tabular-nums;color:#0f172a}.bearing-az__warn{margin-top:.4rem;font-size:.78rem;color:#b45309}.bearing-az__actions{display:flex;gap:.4rem}.bearing-az__action{flex:1;height:38px;border:1px solid #1e3a8a;background:#1e3a8a;color:#fff;border-radius:8px;font:inherit;font-weight:600;font-size:.85rem;cursor:pointer;transition:background .12s ease,transform 80ms ease}.bearing-az__action:hover{background:#1e40af}.bearing-az__action:active{transform:translateY(1px)}.bearing-az__action--ghost{background:transparent;color:#1e3a8a}.bearing-az__action--ghost:hover{background:#eff6ff}