/* ═══════════════════════════════════════════════
   RESULTS — Shell (topbar, tabbar, progress, empty, loading)
   ═══════════════════════════════════════════════ */

/* Results-specific layout tokens */
:root {
    --topbar-h: 48px;
    --tabbar-h: 44px;
    --header-h: 95px;
}

/* Canvas sizing (Chart.js) */
.evo-chart-wrap canvas,
.dist-chart-full canvas,
.spag-chart-full canvas,
.rob-mini-dist-chart canvas,
.bench-evo-chart canvas,
.trades-chart-full canvas,
.eff-chart-full canvas { width: 100% !important; height: 100% !important; }

/* ═══ PROGRESS BAR ═══ */
.progress-strip { position: fixed; top: calc(var(--topbar-h) + var(--tabbar-h)); left: 0; right: 0; height: 3px; background: var(--warm-2); z-index: var(--z-progress); }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--teal), var(--navy)); transition: width 0.1s linear; }

/* ═══ EMPTY STATE ═══ */
.empty-state {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    z-index: var(--z-empty);
    background: var(--warm);
    background-image:
        radial-gradient(circle at 50% 0%, rgba(0,191,179,0.04) 0%, transparent 60%),
        linear-gradient(rgba(0,0,0,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.015) 1px, transparent 1px);
    background-size: 100% 100%, 48px 48px, 48px 48px;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.5s var(--ease), visibility 0.5s var(--ease);
}
.empty-state.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.empty-state-inner {
    text-align: center; max-width: 460px; padding: 48px 40px;
    animation: emptyFadeUp 0.8s var(--ease) both;
}
@keyframes emptyFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}
.empty-state-icon {
    position: relative;
    width: 120px; height: 120px; margin: 0 auto 32px;
    border-radius: 50%;
    background: rgba(0,191,179,0.06);
    border: 1px solid rgba(0,191,179,0.12);
    display: flex; align-items: center; justify-content: center;
}
.empty-state-icon-ring {
    position: absolute; inset: -8px;
    border-radius: 50%;
    border: 1px dashed rgba(0,191,179,0.2);
    animation: emptyRingSpin 30s linear infinite;
}
@keyframes emptyRingSpin {
    to { transform: rotate(360deg); }
}
.empty-state-label {
    margin: 0 0 12px;
}
.empty-state-label .nav-brand-logo {
    color: var(--navy);
}
.empty-state-title {
    font-family: var(--serif); font-size: 32px; font-weight: 700;
    color: var(--navy); margin: 0 0 16px; line-height: 1.2;
}
.empty-state-title span {
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.empty-state-desc {
    font-size: 15px; line-height: 1.7; color: var(--ink-3); margin: 0 0 28px;
}
.empty-state-features {
    display: flex; justify-content: center; gap: 10px;
    flex-wrap: wrap; margin: 0 0 36px;
}
.empty-state-pill {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 12px; font-weight: 500;
    color: var(--ink-2);
    box-shadow: var(--shadow-sm);
}
.empty-state-pill svg { color: var(--teal); flex-shrink: 0; }
.empty-state-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
    color: var(--white);
    border: none; border-radius: 10px;
    font-family: var(--sans); font-size: 14px; font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(5,28,44,0.25);
    transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.empty-state-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(5,28,44,0.35);
}

/* ═══ LOADING OVERLAY ═══ */
.loading-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    z-index: var(--z-loading);
    background: rgba(247,246,242,0.92);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
}
.loading-overlay.active { opacity: 1; visibility: visible; pointer-events: all; }
.loading-overlay-inner {
    text-align: center; max-width: 400px; padding: 40px;
    animation: loFadeUp 0.6s var(--ease) both;
}
@keyframes loFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Visual — animated chart */
.lo-visual {
    position: relative; width: 160px; height: 120px;
    margin: 0 auto 28px; border-radius: 20px;
    background: var(--white); border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.lo-chart { display: block; }
.lo-line {
    stroke-dasharray: 300; stroke-dashoffset: 300;
    animation: loDraw 2s var(--ease) forwards;
}
.lo-area {
    opacity: 0;
    animation: loAreaIn 0.6s var(--ease) 1.8s forwards;
}
@keyframes loDraw {
    to { stroke-dashoffset: 0; }
}
@keyframes loAreaIn {
    to { opacity: 1; }
}
.lo-dot {
    opacity: 0;
    animation: loDotPulse 1.5s var(--ease) 2s infinite;
}
@keyframes loDotPulse {
    0%   { opacity: 0; r: 3; }
    20%  { opacity: 1; r: 4; }
    100% { opacity: 0.4; r: 3; }
}
.lo-scan {
    position: absolute; top: 0; bottom: 0; width: 40px;
    background: linear-gradient(90deg, transparent, rgba(0,191,179,0.08), transparent);
    animation: loScan 2.5s var(--ease) infinite;
}
@keyframes loScan {
    0%   { left: -40px; }
    100% { left: 100%; }
}

/* Label & title */
.lo-label {
    margin: 0 0 8px;
}
.lo-label .nav-brand-logo {
    color: var(--navy);
}
.lo-title {
    font-family: var(--serif); font-size: 24px; font-weight: 700;
    color: var(--navy); margin: 0 0 28px;
}

/* Animated steps */
.lo-steps {
    display: flex; flex-direction: column; gap: 0;
    text-align: left; margin: 0 auto 28px;
    max-width: 280px;
}
.lo-step {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 0;
    opacity: 0.25;
    transition: opacity 0.4s var(--ease);
}
.lo-step.active { opacity: 1; }
.lo-step.done { opacity: 0.5; }
.lo-step-icon {
    width: 32px; height: 32px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    background: var(--warm); color: var(--ink-3);
    flex-shrink: 0;
    transition: background 0.35s var(--ease), color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.lo-step.active .lo-step-icon {
    background: rgba(0,191,179,0.1); color: var(--teal);
    box-shadow: 0 0 0 3px rgba(0,191,179,0.08);
}
.lo-step.done .lo-step-icon {
    background: rgba(0,191,179,0.08); color: var(--teal);
}
.lo-step-text {
    font-size: 13px; font-weight: 500; color: var(--ink-2);
    flex: 1;
}
.lo-step.active .lo-step-text { color: var(--ink); font-weight: 600; }
.lo-step-done {
    display: none; color: var(--teal);
}
.lo-step.done .lo-step-done { display: flex; }

/* Progress bar */
.lo-progress {
    width: 100%; height: 4px; border-radius: 4px;
    background: var(--border); overflow: hidden;
}
.lo-progress-fill {
    height: 100%; width: 0%; border-radius: 4px;
    background: linear-gradient(90deg, var(--teal), var(--teal-dark));
    transition: width 0.6s var(--ease);
}

/* ═══ TOP BAR ═══ */
.topbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-topbar);
    height: var(--topbar-h);
    overflow: visible;
    background: rgba(255,255,255,0.95); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 0 40px;
    display: flex; align-items: center; justify-content: space-between;
}
.topbar-brand { text-decoration: none; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.topbar-btn { padding: 6px 16px; border-radius: 6px; font-family: var(--sans); font-size: 12px; font-weight: 600; cursor: pointer; transition: background 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease); border: none; }
.topbar-btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--ink-3); }
.topbar-btn-ghost:hover { border-color: var(--ink-4); color: var(--ink); }
.topbar-btn-solid { background: var(--navy); color: var(--white); }
.topbar-btn-solid:hover { background: var(--navy-light); }
.topbar-btn:disabled { opacity: 0.6; cursor: wait; }


/* ═══ PAYMENT ISSUE BANNER ═══ */
.payment-banner {
    position: fixed; top: var(--topbar-h); left: 0; right: 0; z-index: calc(var(--z-topbar) - 1);
    background: #FEF3C7; border-bottom: 1px solid #F59E0B;
}
.payment-banner-content {
    max-width: 1200px; margin: 0 auto; padding: 10px 40px;
    display: flex; align-items: center; gap: 10px;
    font-family: var(--sans); font-size: 13px; font-weight: 500; color: #92400E;
}
.payment-banner-content svg { color: #D97706; flex-shrink: 0; }
.payment-banner-content span { flex: 1; }
.payment-banner-btn {
    padding: 5px 14px; border-radius: 6px; border: 1px solid #D97706;
    background: #FFFBEB; color: #92400E; font-family: var(--sans); font-size: 12px;
    font-weight: 600; cursor: pointer; white-space: nowrap; transition: background 0.2s;
}
.payment-banner-btn:hover { background: #FDE68A; }
.payment-banner-close {
    background: none; border: none; font-size: 18px; color: #92400E;
    cursor: pointer; padding: 0 4px; line-height: 1; opacity: 0.6;
}
.payment-banner-close:hover { opacity: 1; }
/* Shift content down when banner is visible */
body.has-payment-banner .tabbar { top: calc(var(--topbar-h) + 40px); }
body.has-payment-banner .tab-pane { padding-top: calc(var(--topbar-h) + var(--tabbar-h) + 40px); }

/* Avatar */
.avatar-wrap { position: relative; margin-left: 8px; }
.avatar-btn { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--navy), var(--teal)); color: var(--white); font-size: 12px; font-weight: 700; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: box-shadow 0.2s; }
.avatar-btn:hover { box-shadow: 0 0 0 3px rgba(0,191,179,0.18); }
.avatar-dropdown { position: fixed; top: var(--topbar-h); right: 40px; width: 260px; max-width: calc(100vw - 32px); background: var(--white); border-radius: 12px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); opacity: 0; visibility: hidden; transform: translateY(-4px); transition: opacity 0.2s var(--ease), visibility 0.2s var(--ease), transform 0.2s var(--ease); z-index: calc(var(--z-topbar) + 10); overflow: hidden; }
.avatar-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }
.avatar-dd-header { padding: 16px 18px; border-bottom: 1px solid var(--border); }
.avatar-dd-name { font-size: 14px; font-weight: 700; color: var(--ink); }
.avatar-dd-email { font-size: 12px; color: var(--ink-4); margin-top: 2px; }
.avatar-dd-plan { display: inline-flex; align-items: center; gap: 5px; margin-top: 8px; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 700; background: var(--green-soft); color: var(--green); }
.avatar-dd-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 11px 18px; font-family: var(--sans); font-size: 13px; font-weight: 500; color: var(--ink-2); background: none; border: none; cursor: pointer; transition: background 0.15s; text-align: left; }
.avatar-dd-item:hover { background: var(--warm); }
.avatar-dd-item svg { flex-shrink: 0; }
.avatar-dd-sep { height: 1px; background: var(--border); margin: 4px 0; }
.avatar-dd-credits { padding: 12px 18px; background: var(--warm); display: flex; justify-content: space-between; align-items: center; }
.avatar-dd-credits-label { font-size: 12px; color: var(--ink-3); font-weight: 500; }
.avatar-dd-credits-val { font-size: 14px; font-weight: 800; color: var(--navy); }

/* ═══ TAB BAR ═══ */
.tabbar {
    position: fixed; top: var(--topbar-h); left: 0; right: 0; z-index: var(--z-tabbar);
    height: var(--tabbar-h);
    background: var(--warm);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center; gap: 0;
    padding: 0 40px;
    overflow-x: auto;
}
.tabbar::-webkit-scrollbar { display: none; }
.tab-link {
    display: flex; align-items: center; gap: 7px;
    padding: 0 22px; height: 100%;
    font-size: 13px; font-weight: 500; color: var(--ink-3);
    text-decoration: none; border: none; background: none; cursor: pointer;
    font-family: var(--sans); white-space: nowrap;
    position: relative; transition: color 0.2s;
}
.tab-link::after { content: ''; position: absolute; bottom: 0; left: 16px; right: 16px; height: 2px; background: var(--teal); transform: scaleX(0); transition: transform 0.25s var(--ease); }
.tab-link:hover { color: var(--ink); }
.tab-link.active { color: var(--navy); font-weight: 600; }
.tab-link.active::after { transform: scaleX(1); }
.tab-link svg { flex-shrink: 0; }
.tab-icon { width: 16px; height: 16px; opacity: 0.5; }
.tab-link.active .tab-icon { opacity: 1; }

/* ═══ TAB PANES ═══ */
.tab-pane { display: none; opacity: 0; transform: translateY(12px); transition: opacity 0.35s var(--ease), transform 0.35s var(--ease); }
.tab-pane.active { display: block; }
.tab-pane.visible { opacity: 1; transform: translateY(0); }

/* ── Accessibility: reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ═══ DEMO MODE ═══ */

/* Hide user-only elements when in demo mode */
body.demo-mode .avatar-wrap,
body.demo-mode #topbarSaveStrat,
body.demo-mode .tabbar-user,
body.demo-mode #tabbarUser,
body.demo-mode #feedbackInline,
body.demo-mode #feedbackToast {
    display: none !important;
}

/* Demo banner — sticky bottom */
.demo-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-topbar);
    background: linear-gradient(135deg, var(--navy) 0%, #0a2a42 100%);
    border-top: 1px solid rgba(0,191,179,0.3);
    padding: 12px 24px;
    box-shadow: 0 -4px 24px rgba(5,28,44,0.15);
}
.demo-banner-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
}
.demo-banner-content svg {
    color: var(--teal);
    flex-shrink: 0;
}
.demo-banner-link {
    color: var(--teal);
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s var(--ease);
}
.demo-banner-link:hover {
    border-bottom-color: var(--teal);
}

/* Disabled action button in demo mode (e.g. Optimize run button) */
.demo-btn-disabled {
    opacity: 0.4;
    cursor: not-allowed !important;
    filter: grayscale(0.5);
}
.demo-btn-disabled:hover {
    opacity: 0.55;
    transform: none !important;
    box-shadow: none !important;
}

/* Demo toast notification */
.demo-toast {
    position: fixed;
    top: 72px;
    left: 50%;
    transform: translateX(-50%) translateY(-12px);
    z-index: calc(var(--z-topbar) + 1);
    background: var(--navy);
    color: rgba(255,255,255,0.9);
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 8px 32px rgba(5,28,44,0.25);
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
    white-space: nowrap;
}
.demo-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.demo-toast-link {
    color: var(--teal);
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s var(--ease);
    flex-shrink: 0;
}
.demo-toast-link:hover {
    border-bottom-color: var(--teal);
}

/* Contextual CTA at the bottom of each tab in demo */
.demo-tab-cta {
    margin: 64px 0 32px;
    padding: 28px 32px;
    background: linear-gradient(135deg, rgba(0,191,179,0.06) 0%, rgba(5,28,44,0.04) 100%);
    border: 1px solid rgba(0,191,179,0.15);
    border-radius: 16px;
    text-align: center;
}
.demo-tab-cta-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}
.demo-tab-cta-icon {
    color: var(--teal);
    flex-shrink: 0;
}
.demo-tab-cta-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink-2);
}
.demo-tab-cta-link {
    font-size: 15px;
    font-weight: 700;
    color: var(--teal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s var(--ease);
}
.demo-tab-cta-link:hover {
    gap: 8px;
}

/* Add bottom padding to main content so banner doesn't overlap */
body.demo-mode #main-content {
    padding-bottom: 56px;
}