.button{min-height:48px;border:2px solid transparent;border-radius:8px;padding:10px 17px;font-weight:800;background:#fff}.button.primary{background:var(--navy);color:#fff}.button.secondary{border-color:#9eb0bb;color:var(--navy);background:#fff}.button.danger-ghost{color:var(--red);background:transparent}.button.small{min-height:42px;padding:7px 13px}.button.wide{width:100%;margin-top:18px}.card,.results-panel,.estimate-breakdown{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.card{padding:24px}.results-panel{padding:25px;border-top:5px solid var(--navy)}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 18px;background:#eef3f5;border-radius:10px;color:var(--muted)}.toolbar>div{display:flex;gap:8px}.mode-switch{display:grid;grid-template-columns:1fr 1fr;max-width:720px;margin:0 auto;gap:12px}.mode-button{min-height:84px;border:2px solid var(--line);background:#fff;border-radius:12px;color:var(--ink);display:grid;place-content:center}.mode-button strong{font-size:1.2rem}.mode-button span{color:var(--muted)}.mode-button[aria-pressed="true"]{border-color:var(--navy);background:#eaf2f6;box-shadow:inset 0 0 0 1px var(--navy)}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field-grid.compact{gap:14px}.field{display:block;font-weight:700}.field>span{display:block;margin-bottom:6px}.field small{display:block;font-weight:400;margin-top:5px}.field.full{grid-column:1/-1}.unit-input{display:flex;align-items:center;border:2px solid #aebbc4;border-radius:8px;background:#fff;overflow:hidden}.unit-input:focus-within{outline:3px solid #f2b84b;outline-offset:2px;border-color:var(--navy)}.unit-input input{border:0;outline:0;text-align:right;font-weight:700;font-size:1.05rem}.unit-input b{padding:0 12px;white-space:nowrap;color:#40545f}.quick-buttons{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.quick-buttons button{min-height:42px;border:1px solid #92a8b5;border-radius:999px;background:#f7fafb;padding:7px 13px;font-weight:700;color:var(--navy)}.card-title{display:flex;align-items:center;justify-content:space-between;gap:15px}.numbered h3>span{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;margin-right:6px}.subtotal{margin-top:16px;border-top:2px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;font-size:1.08rem}.subtotal.two{gap:18px;flex-wrap:wrap}.estimate-breakdown{padding:0;margin-top:24px}.estimate-breakdown summary{padding:18px 22px;font-weight:800;cursor:pointer}.estimate-breakdown>div,.estimate-breakdown>p{margin:0 22px 18px}.validation{color:var(--red);font-weight:800}.mobile-summary{display:none}