:root {
  color-scheme: dark;
  --bg: #050706;
  --surface: #0d110f;
  --surface-2: #141a16;
  --line: rgba(255,255,255,.11);
  --text: #f7f8f5;
  --muted: #a6aaa5;
  --accent: #95ff45;
  --accent-ink: #071006;
  --mint: #62efbf;
  --danger: #ff6b57;
  --amber: #ffc453;
  --radius: 18px;
  --max: 1060px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--bg); scroll-behavior: smooth; }
body { position: relative; margin: 0; min-width: 320px; min-height: 100dvh; background: var(--bg); color: var(--text); }
body::before { content: ""; position: fixed; z-index: -1; inset: 0; pointer-events: none; background: radial-gradient(circle at 83% 8%, rgba(149,255,69,.075), transparent 27%), radial-gradient(circle at 12% 68%, rgba(98,239,191,.035), transparent 24%), repeating-linear-gradient(115deg, rgba(255,255,255,.012) 0 1px, transparent 1px 9px), linear-gradient(180deg, #070a08, #040605 72%); }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
button, [role="button"] { -webkit-tap-highlight-color: transparent; }

.app-shell { min-height: 100dvh; padding-bottom: 92px; }
.topbar { position: sticky; z-index: 15; top: 0; height: 70px; padding: 14px max(20px, env(safe-area-inset-left)); display: flex; align-items: center; justify-content: space-between; max-width: var(--max); margin: 0 auto; background: linear-gradient(180deg, rgba(5,7,6,.96), rgba(5,7,6,.72), transparent); backdrop-filter: blur(10px); }
.brand { border: 0; background: transparent; display: inline-flex; align-items: center; gap: 10px; padding: 0; font-weight: 900; letter-spacing: .12em; cursor: pointer; }
.brand-mark { width: 38px; height: 34px; display: grid; place-items: center; clip-path: polygon(27% 0, 100% 0, 72% 48%, 100% 100%, 49% 100%, 31% 68%, 15% 100%, 0 100%); background: linear-gradient(135deg, #b8ff69, var(--accent)); color: var(--accent-ink); font-size: .64rem; letter-spacing: -.04em; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.icon-button { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); cursor: pointer; }
.icon-button svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.account-button { width: 42px; height: 42px; border: 1px solid #48523f; border-radius: 13px; background: var(--accent); color: var(--accent-ink); font-size: .78rem; font-weight: 950; cursor: pointer; }

main { width: min(100%, var(--max)); margin: 0 auto; padding: 16px 20px 32px; outline: none; }
.eyebrow { margin: 0 0 7px; color: var(--accent); font-size: .78rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif; font-size: clamp(2.35rem, 9vw, 4.8rem); font-weight: 900; line-height: .92; letter-spacing: -.025em; text-transform: uppercase; }
h2 { margin-bottom: 16px; font-size: clamp(1.35rem, 4vw, 1.75rem); letter-spacing: -.03em; }
h3 { margin-bottom: 6px; font-size: 1.05rem; letter-spacing: -.015em; }
.subtle { color: var(--muted); line-height: 1.55; }
.page-intro { margin-bottom: 30px; }
.page-intro p { max-width: 620px; margin-bottom: 0; }
.page-intro h1 { max-width: 780px; }

.hero-card { position: relative; overflow: hidden; min-height: 270px; padding: 26px; border: 1px solid rgba(149,255,69,.28); border-radius: 26px; background: linear-gradient(145deg, rgba(24,34,25,.96) 0%, rgba(8,12,9,.98) 72%); box-shadow: inset 0 0 50px rgba(149,255,69,.025), 0 22px 80px rgba(0,0,0,.26); display: flex; flex-direction: column; justify-content: space-between; }
.hero-card::after { content: ""; position: absolute; width: 260px; height: 260px; right: -90px; top: -105px; border: 52px solid rgba(149,255,69,.09); border-radius: 50%; filter: drop-shadow(0 0 18px rgba(149,255,69,.12)); }
.hero-card > * { position: relative; z-index: 1; }
.hero-meta { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: .9rem; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(200,255,54,.1); }
.hero-title { margin: 22px 0 2px; font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif; font-size: clamp(2.4rem, 9vw, 4rem); font-weight: 900; line-height: .95; letter-spacing: .005em; text-transform: uppercase; }
.hero-actions { display: flex; gap: 10px; align-items: stretch; }

.primary-button, .secondary-button, .ghost-button { min-height: 50px; border-radius: 14px; padding: 0 18px; border: 1px solid transparent; font-weight: 850; cursor: pointer; transition: transform .15s ease, background .15s ease; }
.primary-button { background: linear-gradient(105deg, var(--accent), #b6ff69); color: var(--accent-ink); box-shadow: 0 0 24px rgba(149,255,69,.1); flex: 1; }
.secondary-button { border-color: rgba(255,255,255,.14); background: linear-gradient(180deg, #171d19, #101411); }
.ghost-button { border-color: var(--line); background: transparent; color: var(--muted); }
.primary-button:active, .secondary-button:active, .ghost-button:active { transform: scale(.98); }
.primary-button:focus-visible, .secondary-button:focus-visible, .ghost-button:focus-visible, input:focus-visible, .nav-item:focus-visible { outline: 3px solid rgba(200,255,54,.35); outline-offset: 2px; }

.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.metric-card { min-height: 128px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(155deg, #111612, #0a0e0b); box-shadow: inset 0 1px rgba(255,255,255,.025); }
.metric-label { color: var(--muted); font-size: .82rem; font-weight: 700; }
.metric-value { margin: 18px 0 4px; font-size: 1.75rem; font-weight: 900; letter-spacing: -.045em; }
.metric-detail { color: var(--muted); font-size: .8rem; }
.trend-up { color: var(--accent); }
.trend-down { color: var(--danger); }

.section { margin-top: 30px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 14px; }
.section-heading h2 { margin: 0; }
.text-button { border: 0; background: transparent; color: var(--accent); font-weight: 800; cursor: pointer; padding: 7px 0; }

.list { display: grid; gap: 10px; }
.list-card { width: 100%; padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, #101511, #090c0a); text-align: left; display: flex; align-items: center; justify-content: space-between; gap: 14px; transition: border-color .15s ease, transform .15s ease; }
button.list-card { cursor: pointer; }
button.list-card:hover { border-color: rgba(149,255,69,.35); transform: translateY(-1px); }
.list-card p { margin: 4px 0 0; color: var(--muted); font-size: .84rem; }
.list-icon { flex: 0 0 42px; width: 42px; height: 42px; border-radius: 13px; background: var(--surface-2); display: grid; place-items: center; color: var(--accent); font-weight: 900; }
.list-copy { min-width: 0; flex: 1; }
.list-value { text-align: right; font-weight: 850; white-space: nowrap; }
.chevron { color: var(--muted); font-size: 1.25rem; }

.workout-head { display: flex; gap: 16px; align-items: center; margin-bottom: 20px; }
.workout-progress { flex: 1; height: 7px; border-radius: 999px; background: var(--line); overflow: hidden; }
.workout-progress > span { display: block; height: 100%; background: var(--accent); transition: width .25s ease; }
.workout-count { color: var(--muted); font-size: .84rem; white-space: nowrap; }
.exercise-panel { padding: 20px; border-radius: 24px; background: linear-gradient(145deg, #111612, #090c0a); border: 1px solid rgba(255,255,255,.12); box-shadow: 0 22px 70px rgba(0,0,0,.3); }
.exercise-title-row { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.muscle-tag, .pr-badge { display: inline-flex; min-height: 26px; align-items: center; border-radius: 999px; padding: 0 10px; font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
.muscle-tag { background: var(--surface-2); color: var(--muted); }
.pr-badge { background: var(--accent); color: var(--accent-ink); animation: pop .25s ease; }
@keyframes pop { 50% { transform: scale(1.08); } }
.previous-block { margin: 20px 0; padding: 14px 16px; border-radius: 14px; border: 1px solid rgba(149,255,69,.16); background: #080b09; }
.previous-block strong { font-size: .86rem; }
.previous-sets { margin-top: 8px; color: var(--muted); font-size: .88rem; word-spacing: 5px; }

.set-table { width: 100%; border-collapse: collapse; }
.set-table th { padding: 0 5px 8px; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; text-align: left; }
.set-table th:first-child, .set-table td:first-child { width: 44px; text-align: center; }
.set-table th:last-child, .set-table td:last-child { width: 46px; text-align: right; }
.set-table td { padding: 6px 5px; }
.set-table input { width: 100%; height: 48px; border: 1px solid var(--line); border-radius: 12px; background: #080b09; color: var(--text); padding: 0 12px; font-size: 1.05rem; font-weight: 800; }
.set-index { color: var(--muted); font-weight: 800; }
.set-done { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--line); background: transparent; cursor: pointer; }
.set-done.is-done { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
.exercise-actions { display: grid; grid-template-columns: .8fr .9fr 1.4fr; gap: 8px; margin-top: 18px; }
.exercise-actions button { padding-inline: 10px; }

.weight-entry { padding: 18px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); display: flex; align-items: end; gap: 10px; }
.field { flex: 1; }
.field label { display: block; margin-bottom: 8px; color: var(--muted); font-size: .8rem; font-weight: 750; }
.field input { width: 100%; height: 50px; padding: 0 14px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); color: var(--text); font-size: 1.05rem; font-weight: 800; }
.weight-entry .primary-button { flex: 0 0 auto; }

.range-tabs { width: min(100%, 440px); display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; padding: 5px; margin: 0 0 14px auto; border: 1px solid var(--line); border-radius: 14px; background: #080b09; }
.range-tabs button { min-height: 38px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font-size: .78rem; font-weight: 850; cursor: pointer; }
.range-tabs button.is-active { background: var(--accent); color: var(--accent-ink); }
.analytics-card { min-width: 0; padding: 20px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(150deg, rgba(17,22,18,.98), rgba(7,10,8,.98)); box-shadow: inset 0 1px rgba(255,255,255,.025), 0 20px 60px rgba(0,0,0,.18); }
.strength-card { border-color: rgba(149,255,69,.18); }
.analytics-head { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.analytics-head h2 { margin: 5px 0 0; }
.trend-number { flex: 0 0 auto; font-size: 1.35rem; font-weight: 950; }
.filter-row.compact { margin: 14px 0 2px; }
.filter-row.compact .filter-chip { min-height: 34px; font-size: .72rem; }
.line-chart { display: block; width: 100%; height: 190px; margin-top: 6px; overflow: visible; }
.chart-gridline { fill: none; stroke: rgba(255,255,255,.075); stroke-width: 1; }
.chart-footer { display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: .78rem; }
.chart-footer strong { color: var(--text); }
.chart-empty { min-height: 180px; display: grid; place-items: center; color: var(--muted); border-bottom: 1px solid var(--line); }
.analytics-card .weight-entry { margin-top: 10px; padding: 0; border: 0; background: transparent; }
.pr-card { position: relative; overflow: hidden; min-height: 280px; display: flex; flex-direction: column; justify-content: end; border-color: rgba(149,255,69,.26); }
.pr-card::before { content: ""; position: absolute; width: 200px; height: 200px; right: -60px; top: -65px; border-radius: 50%; background: radial-gradient(circle, rgba(149,255,69,.18), transparent 66%); }
.pr-mark { position: absolute; right: 24px; top: 24px; width: 58px; height: 58px; display: grid; place-items: center; clip-path: polygon(50% 0,61% 16%,80% 10%,82% 30%,100% 38%,86% 52%,96% 70%,76% 75%,74% 96%,54% 88%,39% 100%,28% 82%,8% 85%,10% 64%,0 50%,18% 39%,14% 19%,35% 20%); background: var(--accent); color: var(--accent-ink); font-size: 1.35rem; }
.pr-value { margin-top: 28px; font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif; font-size: 4rem; line-height: .9; }
.pr-value small { font-family: inherit; font-size: 1.4rem; color: var(--muted); }
.pr-card p { margin: 9px 0; font-weight: 800; }
.pr-copy { max-width: 340px; color: var(--muted); font-size: .8rem; line-height: 1.5; }
.symptom-form { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.symptom-form input, .symptom-form select, textarea { width: 100%; min-height: 46px; padding: 0 12px; border: 1px solid var(--line); border-radius: 12px; background: #080b09; color: var(--text); }
.symptom-form input, .symptom-form button { grid-column: 1 / -1; }
.symptom-list { display: grid; gap: 2px; margin-top: 16px; }
.symptom-row { min-width: 0; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; padding: 12px 0; border-top: 1px solid rgba(255,255,255,.07); }
.symptom-row small { display: block; margin-top: 3px; color: var(--muted); font-size: .74rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.severity-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.severity-none { background: var(--mint); }
.severity-mild { background: var(--accent); }
.severity-moderate { background: var(--amber); }
.severity-high { background: var(--danger); }
.severity-tag { padding: 5px 8px; border-radius: 7px; background: var(--surface-2); color: var(--muted); font-size: .7rem; font-weight: 800; }

.workout-tools { margin-top: 20px; border-top: 1px solid var(--line); }
.workout-tools summary { padding: 18px 0 4px; list-style: none; display: flex; justify-content: space-between; color: var(--text); font-weight: 850; cursor: pointer; }
.workout-tools summary::-webkit-details-marker { display: none; }
.workout-tools summary span { color: var(--muted); font-size: .76rem; font-weight: 700; }
.tool-grid { display: grid; gap: 12px; padding-top: 14px; }
.timer-card { padding: 18px; border: 1px solid rgba(149,255,69,.2); border-radius: 18px; background: radial-gradient(circle at 90% 10%, rgba(149,255,69,.1), transparent 45%), #080b09; }
.timer-value { margin: 8px 0 16px; font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif; font-size: 3.1rem; letter-spacing: .04em; }
.timer-actions { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 7px; }
.timer-actions button { min-height: 42px; padding: 0 8px; font-size: .75rem; }
.notes-field textarea { min-height: 130px; padding: 12px; resize: vertical; line-height: 1.45; }

.back-button { margin-bottom: 18px; }
.exercise-detail-hero { position: relative; overflow: hidden; padding: 26px; border: 1px solid rgba(149,255,69,.24); border-radius: 24px; background: linear-gradient(135deg, #172017, #080b09 72%); }
.exercise-detail-hero h1 { max-width: 740px; }
.exercise-glyph { position: absolute; right: -15px; top: -35px; color: rgba(149,255,69,.085); font-family: Impact, sans-serif; font-size: 13rem; line-height: 1; }
.detail-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.detail-stats span { min-width: 135px; padding: 13px 15px; border: 1px solid var(--line); border-radius: 13px; background: rgba(0,0,0,.28); font-weight: 900; }
.detail-stats small { display: block; margin-bottom: 4px; color: var(--muted); font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.instruction-list { padding: 0; margin: 22px 0 0; list-style: none; counter-reset: steps; display: grid; gap: 18px; }
.instruction-list li { position: relative; min-height: 32px; padding-left: 44px; color: #d3d7d2; line-height: 1.5; counter-increment: steps; }
.instruction-list li::before { content: counter(steps); position: absolute; left: 0; top: -2px; width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent); font-weight: 900; }
.target-visual { min-height: 155px; margin: 18px 0; border-radius: 16px; display: grid; place-items: center; background: radial-gradient(ellipse, rgba(149,255,69,.22), transparent 60%), linear-gradient(135deg, #111711, #070908); }
.target-visual span { padding: 9px 13px; border: 1px solid var(--accent); border-radius: 999px; color: var(--accent); font-weight: 900; text-transform: uppercase; letter-spacing: .09em; }
.target-row { display: grid; grid-template-columns: auto 86px 1fr; gap: 9px; align-items: center; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.06); font-size: .82rem; }
.target-row > span:last-child { color: var(--muted); }
.tip-box { margin: 18px 0 0; padding: 14px; border-left: 3px solid var(--accent); background: rgba(149,255,69,.06); color: var(--muted); line-height: 1.5; }
.tip-box strong { display: block; margin-bottom: 5px; color: var(--text); }

.chart { height: 160px; padding: 18px 12px 8px; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); display: flex; align-items: end; gap: 9px; }
.bar-wrap { flex: 1; min-width: 0; height: 100%; display: flex; flex-direction: column; justify-content: end; align-items: center; gap: 7px; }
.bar { width: 100%; max-width: 30px; min-height: 8px; border-radius: 8px 8px 3px 3px; background: linear-gradient(var(--accent), #799f11); }
.bar-label { color: var(--muted); font-size: .66rem; }

.filter-row { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; margin-bottom: 16px; scrollbar-width: none; }
.filter-row::-webkit-scrollbar { display: none; }
.filter-chip { min-height: 38px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--muted); white-space: nowrap; cursor: pointer; }
.filter-chip.is-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 850; }
.empty-state { padding: 36px 20px; border: 1px dashed var(--line); border-radius: var(--radius); text-align: center; color: var(--muted); }
.ownership { margin: 30px 0 0; color: #6f7871; font-size: .74rem; text-align: center; letter-spacing: .06em; text-transform: uppercase; }

.principle-card { margin-bottom: 18px; padding: 20px; border: 1px solid #46513e; border-radius: 20px; background: linear-gradient(135deg, rgba(200,255,54,.1), rgba(200,255,54,.025)); }
.principle-card strong { display: block; margin-bottom: 6px; font-size: 1.05rem; }
.principle-card p { margin: 0; color: var(--muted); line-height: 1.5; }
.template-grid { display: grid; gap: 12px; }
.template-card { padding: 20px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); display: flex; flex-direction: column; }
.template-top { display: flex; align-items: start; justify-content: space-between; gap: 14px; }
.template-number { flex: 0 0 auto; color: var(--accent); font-size: .75rem; font-weight: 900; letter-spacing: .1em; }
.template-meta { display: flex; flex-wrap: wrap; gap: 7px; margin: 14px 0; }
.template-meta span { padding: 6px 9px; border-radius: 8px; background: var(--surface-2); color: var(--muted); font-size: .74rem; font-weight: 750; }
.template-lesson { margin: 0 0 16px; color: var(--muted); font-size: .86rem; line-height: 1.5; }
.template-exercises { margin: 0 0 18px; padding: 0; list-style: none; display: grid; gap: 7px; }
.template-exercises li { display: flex; gap: 9px; color: #c4ccc6; font-size: .85rem; }
.template-exercises li::before { content: ""; width: 5px; height: 5px; margin-top: .52em; border-radius: 50%; background: var(--accent); }
.template-card .secondary-button { margin-top: auto; width: 100%; }
.builder { padding: 20px; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); }
.builder-intro { margin-bottom: 18px; }
.builder-exercises { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 14px 0 18px; }
.builder-exercise { min-height: 56px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); color: var(--muted); text-align: left; font-size: .78rem; font-weight: 750; cursor: pointer; }
.builder-exercise.is-selected { border-color: var(--accent); background: rgba(200,255,54,.1); color: var(--text); }
.builder-summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; color: var(--muted); font-size: .84rem; }
.builder .primary-button { width: 100%; }
.primary-button:disabled { opacity: .42; cursor: not-allowed; }

.auth-shell { min-height: calc(100dvh - 118px); display: grid; place-items: center; padding: 24px 0 48px; }
.auth-card { width: min(100%, 470px); padding: clamp(22px, 5vw, 34px); border: 1px solid var(--line); border-radius: 26px; background: linear-gradient(145deg, #171b18, #101310); box-shadow: 0 24px 80px rgba(0,0,0,.35); }
.auth-card h1 { font-size: clamp(2.2rem, 9vw, 3.5rem); }
.auth-mode { display: inline-flex; align-items: center; min-height: 28px; margin-bottom: 22px; padding: 0 10px; border-radius: 999px; background: rgba(255,196,83,.12); color: var(--amber); font-size: .72rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 5px; margin: 24px 0 20px; border: 1px solid var(--line); border-radius: 15px; background: #0d100e; }
.auth-tab { min-height: 42px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font-weight: 800; cursor: pointer; }
.auth-tab.is-active { background: var(--surface-2); color: var(--text); }
.auth-form { display: grid; gap: 14px; }
.auth-form .field input { height: 54px; }
.auth-form .primary-button { margin-top: 4px; }
.password-policy { margin: -4px 0 0; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.auth-message { min-height: 22px; margin: 12px 0 0; color: var(--muted); font-size: .84rem; line-height: 1.45; }
.auth-message.is-error { color: var(--danger); }
.auth-footnote { margin: 20px 0 0; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: .78rem; line-height: 1.5; }

.bottom-nav { position: fixed; z-index: 20; left: 50%; bottom: max(12px, env(safe-area-inset-bottom)); transform: translateX(-50%); width: min(calc(100% - 24px), 620px); height: 68px; padding: 7px; border: 1px solid #333a35; border-radius: 22px; background: rgba(18,21,19,.92); backdrop-filter: blur(18px); display: grid; grid-template-columns: repeat(5, 1fr); box-shadow: 0 16px 50px rgba(0,0,0,.42); }
.nav-item { border: 0; border-radius: 16px; background: transparent; color: var(--muted); display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 3px; font-size: .69rem; font-weight: 750; cursor: pointer; }
.nav-item svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nav-item.is-active { background: var(--surface-2); color: var(--accent); }

.toast-region { position: fixed; z-index: 50; left: 50%; top: 16px; transform: translateX(-50%); width: min(calc(100% - 32px), 420px); pointer-events: none; }
.toast { padding: 14px 16px; border: 1px solid #495642; border-radius: 14px; background: #1a2019; box-shadow: 0 12px 40px rgba(0,0,0,.45); font-weight: 750; animation: toast-in .2s ease; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } }

.dialog-backdrop { position: fixed; z-index: 40; inset: 0; background: rgba(0,0,0,.72); display: grid; place-items: end center; padding: 16px; }
.dialog { width: min(100%, 480px); padding: 22px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 20px 70px rgba(0,0,0,.55); }
.dialog-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }

@media (min-width: 760px) {
  main { padding-top: 30px; }
  .dashboard-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 16px; align-items: stretch; }
  .metric-grid { margin-top: 0; }
  .hero-card { min-height: 320px; }
  .exercise-panel { padding: 28px; }
  .progress-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .template-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .builder-exercises { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .section.desktop-reset { margin-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media (max-width: 380px) {
  .nav-item { font-size: .61rem; }
  .nav-item svg { width: 19px; height: 19px; }
  .exercise-actions { grid-template-columns: 1fr 1fr; }
  .exercise-actions .primary-button { grid-column: 1 / -1; }
}