/* ── SDPal — App Shell ── */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
::selection{background:rgba(34,197,94,0.2);color:#fff}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

body{
  font-family:var(--font);
  background:var(--bg-base);
  color:var(--text-1);
  line-height:1.55;
  min-height:100dvh;
  overflow-x:hidden;
  -webkit-tap-highlight-color:transparent;
}

/* Ambient green orb — top right */
body::before{
  content:'';position:fixed;top:-260px;right:-160px;
  width:580px;height:580px;
  background:radial-gradient(circle,rgba(34,197,94,0.04) 0%,transparent 60%);
  pointer-events:none;z-index:0;
}

a{color:var(--accent);text-decoration:none}
a:hover{opacity:0.85}

button{font-family:var(--font);cursor:pointer;border:none;background:none;font-size:inherit;color:inherit}

input,textarea,select{
  font-family:var(--font);font-size:14px;color:var(--text-1);
  background:var(--bg-input);border:1px solid var(--border);
  border-radius:var(--r-md);padding:10px 14px;outline:none;width:100%;
  transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
input:focus,textarea:focus,select:focus{
  border-color:var(--border-focus);background:var(--bg-input-focus);
  box-shadow:var(--accent-glow-sm);
}
input::placeholder,textarea::placeholder{color:var(--text-3)}

/* ═══ APP SHELL ═══ */
#app{display:flex;min-height:100dvh;position:relative;z-index:1}

/* ── Sidebar ── */
.sidebar{
  width:var(--side-w);height:100dvh;position:fixed;left:0;top:0;
  background:var(--glass);
  backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  border-right:1px solid var(--glass-border);
  display:flex;flex-direction:column;align-items:center;
  padding:12px 0;gap:1px;z-index:100;overflow-y:auto;overflow-x:hidden;
}
.sidebar-logo{width:32px;height:32px;margin-bottom:12px;border-radius:var(--r-sm)}

.sidebar .nav-item{
  width:42px;height:42px;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-3);transition:all var(--t);position:relative;flex-shrink:0;
}
.sidebar .nav-item:hover{background:rgba(255,255,255,0.05);color:var(--text-2)}
.sidebar .nav-item.active{
  background:var(--accent-dim);color:var(--accent);
}
.sidebar .nav-item svg{width:19px;height:19px}

.sidebar .nav-item .nav-tooltip{
  position:absolute;left:calc(100% + 8px);top:50%;transform:translateY(-50%);
  background:var(--bg-elevated);border:1px solid var(--border);
  color:var(--text-1);padding:5px 10px;border-radius:var(--r-xs);
  font-size:11px;font-weight:600;white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity 0.12s;z-index:200;
  box-shadow:var(--shadow-md);
}
.sidebar .nav-item:hover .nav-tooltip{opacity:1}
.sidebar-spacer{flex:1}

/* ── Main ── */
.main-content{flex:1;margin-left:var(--side-w);min-height:100dvh;display:flex;flex-direction:column}

/* ── Topbar ── */
.topbar{
  height:var(--nav-h);display:flex;align-items:center;padding:0 20px;gap:10px;
  border-bottom:1px solid var(--border-subtle);
  background:var(--glass);
  backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  position:sticky;top:0;z-index:60;
}
.topbar-title{font-size:14px;font-weight:600;flex:1;letter-spacing:-0.02em}
.topbar-back{width:32px;height:32px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:var(--text-2);transition:all var(--t)}
.topbar-back:hover{background:rgba(255,255,255,0.05);color:var(--text-1)}
.topbar-avatar{
  width:28px;height:28px;border-radius:var(--r-full);
  background:var(--accent-dim);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;cursor:pointer;overflow:hidden;
  border:1.5px solid var(--accent-mid);
}
.topbar-avatar img{width:100%;height:100%;object-fit:cover}

/* ═══ PAGES ═══ */
.page{
  display:none;flex:1;padding:24px 20px;
  padding-bottom:calc(24px + var(--bnav-h));
  max-width:var(--max-w);width:100%;margin:0 auto;
  animation:pageIn 0.2s var(--ease);
}
.page.active{display:flex;flex-direction:column}
.page.wide{max-width:var(--wide-w)}
.page.fullscreen{max-width:100%;padding:0;padding-bottom:0;overflow:hidden}

@keyframes pageIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

/* ═══ PHASES ═══ */
.phase-host{position:relative;overflow:hidden;flex:1;height:calc(100dvh - var(--nav-h));z-index:1}
@media(max-width:768px){.phase-host{height:calc(100dvh - var(--nav-h) - var(--bnav-h) - env(safe-area-inset-bottom,0))}}

.phase{
  position:absolute;inset:0;display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;
  transition:transform 0.3s var(--ease),opacity 0.25s;
  opacity:1;transform:translateX(0);padding:20px;
  z-index:1;
}
.phase>*{max-width:var(--max-w);width:100%;margin-left:auto;margin-right:auto}
.phase.enter-right{transform:translateX(60px);opacity:0}
.phase.enter-left{transform:translateX(-60px);opacity:0}
.phase.exit-left{transform:translateX(-30px);opacity:0;pointer-events:none}
.phase.exit-right{transform:translateX(30px);opacity:0;pointer-events:none}
.phase.active{transform:translateX(0);opacity:1}
.phase-center{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;text-align:center;max-width:100%!important}

/* ═══ BOTTOM SHEET ═══ */
.bsheet-overlay{position:fixed;inset:0;background:rgba(0,0,0,0);z-index:600;display:flex;align-items:flex-end;justify-content:center;transition:background 0.3s}
.bsheet-overlay.open{background:rgba(0,0,0,0.5)}
.bsheet{
  background:var(--bg-elevated);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border-top-left-radius:var(--r-2xl);border-top-right-radius:var(--r-2xl);
  width:100%;max-width:480px;max-height:80vh;
  transform:translateY(100%);transition:transform 0.35s var(--ease);
  overflow-y:auto;padding-bottom:env(safe-area-inset-bottom,16px);
  box-shadow:var(--shadow-xl);border:1px solid var(--glass-border);border-bottom:none;
}
.bsheet-overlay.open .bsheet{transform:translateY(0)}
.bsheet-handle{width:32px;height:3px;background:var(--border-hover);border-radius:2px;margin:10px auto 6px}
.bsheet-title{font-size:15px;font-weight:700;padding:6px 20px 12px;letter-spacing:-0.02em}
.bsheet-body{padding:0 20px 20px}

/* ═══ GENERATING ═══ */
.generating{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:24px;max-width:100%!important}
.generating-rings{position:relative;width:80px;height:80px}
.generating-ring{position:absolute;top:50%;left:50%;border-radius:50%;border:1.5px solid var(--accent);opacity:0;animation:genPulse 2.2s var(--ease) infinite}
.generating-ring.r1{width:30px;height:30px;margin:-15px 0 0 -15px;animation-delay:0s}
.generating-ring.r2{width:54px;height:54px;margin:-27px 0 0 -27px;animation-delay:0.4s}
.generating-ring.r3{width:80px;height:80px;margin:-40px 0 0 -40px;animation-delay:0.8s}
@keyframes genPulse{0%{transform:scale(0.6);opacity:0.6}100%{transform:scale(1.3);opacity:0}}
.generating-label{font-size:13px;font-weight:500;color:var(--text-2);transition:opacity 0.2s}

/* ═══ FOCUS MODE ═══ */
#app.focus-mode .sidebar,#app.focus-mode .bottom-nav,#app.focus-mode .topbar{display:none!important}
#app.focus-mode .main-content{margin-left:0}
#app.focus-mode{background:#000}
#app.focus-mode .phase-host{height:100dvh}

/* ═══ BOTTOM NAV ═══ */
.bottom-nav{
  display:none;position:fixed;bottom:0;left:0;right:0;height:var(--bnav-h);
  background:var(--glass);
  backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  border-top:1px solid var(--glass-border);z-index:100;
  padding-bottom:env(safe-area-inset-bottom,0);
}
.bottom-nav-inner{display:flex;align-items:center;justify-content:space-around;height:100%;max-width:420px;margin:0 auto}
.bottom-nav .nav-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 12px;border-radius:var(--r-md);color:var(--text-3);
  font-size:9px;font-weight:600;transition:all var(--t);letter-spacing:0.02em;
}
.bottom-nav .nav-item.active{color:var(--accent)}
.bottom-nav .nav-item svg{width:20px;height:20px}

/* ═══ RESPONSIVE ═══ */
@media(max-width:768px){
  .sidebar{display:none}
  .main-content{margin-left:0}
  .bottom-nav{display:block}
  .page{padding:16px 14px;padding-bottom:calc(16px + var(--bnav-h) + env(safe-area-inset-bottom,0))}
  .phase{padding:16px 14px}
}
@media(min-width:769px){.bottom-nav{display:none!important}}

/* ═══ DASHBOARD ═══ */
.dashboard-greeting{font-size:24px;font-weight:800;letter-spacing:-0.04em}
.dashboard-sub{color:var(--text-2);font-size:13px;margin-top:3px;margin-bottom:24px}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(135px,1fr));gap:8px}
.tool-card{
  background:var(--glass-card);
  border:1px solid var(--glass-card-border);
  border-radius:var(--r-lg);padding:18px 12px 14px;
  display:flex;flex-direction:column;align-items:center;gap:7px;
  cursor:pointer;transition:all var(--t);text-align:center;position:relative;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.tool-card:hover{
  background:var(--glass-card-hover);border-color:var(--border-hover);
  transform:translateY(-2px);box-shadow:var(--shadow-md);
}
.tool-card:active{transform:translateY(0)}
.tool-card-icon{width:40px;height:40px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;font-size:19px}
.tool-card-name{font-size:12px;font-weight:600;letter-spacing:-0.01em}
.tool-card-desc{font-size:10px;color:var(--text-3);line-height:1.35}
.tool-card .pro-badge{position:absolute;top:6px;right:6px;background:var(--purple-dim);color:var(--purple);font-size:7px;font-weight:700;padding:2px 5px;border-radius:var(--r-full);border:1px solid var(--purple-border);text-transform:uppercase;letter-spacing:0.5px}

.quick-action{transition:all var(--t);cursor:pointer}
.quick-action:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.quick-action:active{transform:translateY(0)}

/* ═══ BUTTONS ═══ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:10px 20px;border-radius:var(--r-md);font-size:13px;font-weight:600;
  transition:all var(--t);cursor:pointer;border:none;white-space:nowrap;letter-spacing:-0.01em;
}
.btn-primary{background:var(--accent);color:var(--text-inv);box-shadow:var(--accent-glow-btn)}
.btn-primary:hover{background:var(--accent-hover);box-shadow:var(--accent-glow);transform:translateY(-1px)}
.btn-primary:active{transform:scale(0.97);box-shadow:var(--accent-glow-sm)}
.btn-primary:disabled{opacity:0.4;cursor:not-allowed;box-shadow:none;transform:none}

.btn-secondary{background:var(--glass-card);color:var(--text-1);border:1px solid var(--glass-card-border);backdrop-filter:blur(8px)}
.btn-secondary:hover{background:var(--glass-card-hover);border-color:var(--border-hover)}

.btn-ghost{background:transparent;color:var(--text-2);padding:7px 12px}
.btn-ghost:hover{background:rgba(255,255,255,0.04);color:var(--text-1)}

.btn-sm{padding:6px 12px;font-size:12px}
.btn-full{width:100%}
.btn .spinner{width:16px;height:16px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin 0.6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ═══ MISC ═══ */
.section-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-3);margin-bottom:12px}
.hidden{display:none!important}

::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.06);border-radius:2px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,0.1)}

@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideInLeft{from{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:translateX(0)}}