/* ============================================================
   NEXUS OS — style.css v4 FINAL
   Full light mode, accent cascade, mobile sidebar fix,
   weather light mode, welcome card light mode
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&display=swap');

/* ── DARK THEME (default) ─────────────────────────────── */
:root {
  --bg-primary:    #07090f;
  --bg-secondary:  #0d1117;
  --bg-tertiary:   #111620;
  --bg-card:       #141921;
  --bg-card-hover: #1b2336;
  --bg-glass:      rgba(20,25,33,0.75);
  --bg-glass-2:    rgba(10,13,19,0.90);

  --accent:        #3b82f6;
  --accent-r:      59; --accent-g: 130; --accent-b: 246;
  --accent-glow:   rgba(59,130,246,0.35);
  --accent-light:  #60a5fa;
  --accent-dim:    rgba(59,130,246,0.12);
  --accent-2:      #8b5cf6;
  --accent-3:      #06d6a0;

  --text-primary:  #e8edf5;
  --text-secondary:#8b95a8;
  --text-muted:    #4d5a6b;
  --text-on-accent:#ffffff;

  --border:        rgba(255,255,255,0.07);
  --border-hover:  rgba(59,130,246,0.4);
  --border-accent: rgba(59,130,246,0.5);

  --shadow-sm:  0 2px 8px  rgba(0,0,0,0.45);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.55);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.65);
  --shadow-accent: 0 0 24px rgba(59,130,246,0.3);

  --sidebar-w:         240px;
  --sidebar-collapsed: 64px;
  --topbar-h:          60px;
  --radius-sm:  8px; --radius-md: 12px;
  --radius-lg:  18px; --radius-xl: 24px;
  --radius-full:9999px;
  --font-display:'Syne',sans-serif;
  --font-body:   'DM Sans',sans-serif;
  --tr:  all 0.22s cubic-bezier(0.4,0,0.2,1);
  --trs: all 0.40s cubic-bezier(0.4,0,0.2,1);
  --trp: all 0.30s cubic-bezier(0.34,1.56,0.64,1);
}

/* ── LIGHT THEME ──────────────────────────────────────── */
body.light-mode {
  --bg-primary:    #f0f4fb;
  --bg-secondary:  #e4eaf6;
  --bg-tertiary:   #d8e2f0;
  --bg-card:       #ffffff;
  --bg-card-hover: #eef4ff;
  --bg-glass:      rgba(255,255,255,0.85);
  --bg-glass-2:    rgba(240,244,251,0.95);
  --text-primary:  #0d1117;
  --text-secondary:#3a4d68;
  --text-muted:    #7a8fa8;
  --text-on-accent:#ffffff;
  --border:        rgba(0,0,0,0.09);
  --border-hover:  rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.45);
  --border-accent: rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.55);
  --shadow-sm:  0 2px 8px  rgba(0,0,0,0.07);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.09);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.13);
}

/* ── LIGHT: welcome card fix ── */
body.light-mode .welcome-card {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 10%, white) 0%,
    #ffffff 60%,
    color-mix(in srgb, var(--accent-2) 6%, white) 100%) !important;
  border-color: var(--border-accent) !important;
}
body.light-mode .welcome-name    { color: var(--text-primary) !important; -webkit-text-fill-color: var(--text-primary) !important; }
body.light-mode .welcome-greeting{ color: var(--accent) !important; }
body.light-mode .live-clock      { color: var(--accent) !important; text-shadow: none !important; }

/* ── LIGHT: weather card ── */
body.light-mode .weather-card {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 8%, white) 0%,
    #ffffff 100%);
  border-color: var(--border-accent);
  color: var(--text-primary);
}
body.light-mode .weather-temp  { color: var(--accent); text-shadow: none; }
body.light-mode .weather-label { color: var(--text-secondary); }

/* ── LIGHT: sidebar ── */
body.light-mode .sidebar      { background: var(--bg-glass-2); border-right-color: var(--border); }
body.light-mode .topbar       { background: var(--bg-glass-2); border-bottom-color: var(--border); }
body.light-mode .nav-item.active { background: var(--accent-dim); color: var(--accent); }

/* ── RESET ────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden;transition:background .3s,color .3s}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{cursor:pointer;font-family:inherit;border:none;background:none}
input,textarea,select{font-family:inherit}
img{max-width:100%;display:block}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:var(--bg-secondary)}
::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}

/* ── LAYOUT ───────────────────────────────────────────── */
.app-shell{display:flex;min-height:100vh}

/* ── SIDEBAR ──────────────────────────────────────────── */
.sidebar{
  width:var(--sidebar-w);min-height:100vh;
  background:var(--bg-glass-2);border-right:1px solid var(--border);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  display:flex;flex-direction:column;
  position:fixed;left:0;top:0;bottom:0;z-index:100;
  transition:var(--trs);overflow-y:auto;overflow-x:hidden;
}
.sidebar.collapsed{width:var(--sidebar-collapsed)}
.sidebar-logo{display:flex;align-items:center;gap:12px;padding:18px 16px;border-bottom:1px solid var(--border);min-height:var(--topbar-h)}
.sidebar-logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--accent),var(--accent-2));border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.2rem;font-weight:800}
.sidebar-logo-text{font-family:var(--font-display);font-size:1.05rem;font-weight:800;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap}
.sidebar.collapsed .sidebar-logo-text,
.sidebar.collapsed .sidebar-section-label,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .user-info{opacity:0;width:0;overflow:hidden;pointer-events:none}
.sidebar.collapsed .nav-item{justify-content:center;padding:9px}
.sidebar-nav{flex:1;padding:10px 8px;display:flex;flex-direction:column;gap:2px}
.sidebar-section-label{font-size:.62rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);padding:10px 10px 4px;transition:var(--tr);white-space:nowrap}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.855rem;font-weight:500;transition:var(--tr);white-space:nowrap;cursor:pointer}
.nav-item:hover{background:var(--accent-dim);color:var(--text-primary)}
.nav-item.active{background:var(--accent-dim);color:var(--accent);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.nav-icon{font-size:1rem;flex-shrink:0;width:20px;text-align:center}
.nav-label{overflow:hidden;transition:var(--tr)}
.nav-badge{margin-left:auto;background:var(--accent);color:#fff;font-size:.62rem;font-weight:700;padding:2px 6px;border-radius:var(--radius-full);flex-shrink:0}
.sidebar-footer{padding:10px 8px;border-top:1px solid var(--border)}
.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--tr);text-decoration:none}
.sidebar-user:hover{background:var(--accent-dim)}
.user-avatar{width:32px;height:32px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:700;color:#fff;flex-shrink:0}
.user-name{font-size:.82rem;font-weight:600;white-space:nowrap;color:var(--text-primary)}
.user-status{font-size:.68rem;color:var(--accent-3);white-space:nowrap}

/* ── TOPBAR ───────────────────────────────────────────── */
.topbar{height:var(--topbar-h);display:flex;align-items:center;gap:12px;padding:0 22px;background:var(--bg-glass-2);border-bottom:1px solid var(--border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);position:sticky;top:0;z-index:50}
.topbar-toggle{width:34px;height:34px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:1.1rem;transition:var(--tr);flex-shrink:0}
.topbar-toggle:hover{background:var(--accent-dim);color:var(--accent)}
.topbar-page-title{font-family:var(--font-display);font-size:.92rem;font-weight:700;color:var(--text-primary);letter-spacing:-.01em;white-space:nowrap}
.topbar-search{flex:1;max-width:380px;position:relative}
.topbar-search input{width:100%;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-full);padding:7px 14px 7px 34px;font-size:.83rem;color:var(--text-primary);outline:none;transition:var(--tr)}
.topbar-search input::placeholder{color:var(--text-muted)}
.topbar-search input:focus{border-color:var(--border-accent);box-shadow:0 0 0 3px var(--accent-dim);background:var(--bg-card)}
.topbar-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:.85rem;pointer-events:none}
.topbar-actions{display:flex;align-items:center;gap:5px;margin-left:auto}
.topbar-btn{width:34px;height:34px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:.92rem;transition:var(--tr);text-decoration:none;cursor:pointer}
.topbar-btn:hover{background:var(--accent-dim);color:var(--accent)}

/* ── MAIN CONTENT ─────────────────────────────────────── */
.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh;transition:var(--trs)}
.main-content.expanded{margin-left:var(--sidebar-collapsed)}
.page-content{padding:24px;flex:1}

/* ── CARDS ────────────────────────────────────────────── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:var(--tr);position:relative;overflow:hidden}
.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}
.card-header{display:flex;align-items:center;justify-content:space-between;padding:15px 18px 12px;border-bottom:1px solid var(--border)}
.card-title{font-family:var(--font-display);font-size:.88rem;font-weight:700;letter-spacing:-.01em;display:flex;align-items:center;gap:7px;color:var(--text-primary)}
.card-body{padding:15px 18px}
.card-footer{padding:11px 18px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}

/* ── BUTTONS ──────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--radius-sm);font-size:.845rem;font-weight:600;font-family:var(--font-body);transition:var(--tr);cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--accent);color:var(--text-on-accent);border-color:var(--accent);box-shadow:0 0 14px var(--accent-glow)}
.btn-primary:hover{filter:brightness(1.12);box-shadow:0 0 22px var(--accent-glow);transform:translateY(-1px)}
.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border-color:var(--border)}
.btn-secondary:hover{background:var(--bg-card-hover);color:var(--text-primary);border-color:var(--border-hover)}
.btn-ghost{background:transparent;color:var(--text-secondary)}
.btn-ghost:hover{background:var(--accent-dim);color:var(--accent)}
.btn-danger{background:rgba(239,68,68,.12);color:#f87171;border-color:rgba(239,68,68,.25)}
.btn-danger:hover{background:rgba(239,68,68,.22)}
.btn-success{background:rgba(6,214,160,.12);color:#06d6a0;border-color:rgba(6,214,160,.25)}
.btn-success:hover{background:rgba(6,214,160,.22)}
.btn-sm{padding:6px 12px;font-size:.78rem}
.btn-lg{padding:12px 24px;font-size:.95rem}
.btn-icon{padding:7px;width:32px;height:32px;justify-content:center}
.btn:active{transform:scale(.97)!important}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}

/* Google sign-in button */
.btn-google{background:#fff;color:#3c4043;border:1px solid #dadce0;display:flex;align-items:center;gap:10px;padding:10px 18px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:600;cursor:pointer;transition:var(--tr)}
.btn-google:hover{background:#f8f9fa;box-shadow:0 2px 8px rgba(0,0,0,.15);transform:translateY(-1px)}
.btn-google svg{width:18px;height:18px;flex-shrink:0}

/* ── FORMS ────────────────────────────────────────────── */
.form-group{margin-bottom:14px}
.form-label{display:block;font-size:.79rem;font-weight:600;color:var(--text-secondary);margin-bottom:5px}
.form-input,.form-textarea,.form-select{width:100%;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:9px 12px;font-size:.862rem;color:var(--text-primary);outline:none;transition:var(--tr)}
.form-input::placeholder,.form-textarea::placeholder{color:var(--text-muted)}
.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--border-accent);box-shadow:0 0 0 3px var(--accent-dim);background:var(--bg-card)}
.form-textarea{resize:vertical;min-height:95px}
.form-select{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238b95a8'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center;background-size:12px;padding-right:32px}
.form-select option{background:var(--bg-card);color:var(--text-primary)}

/* ── BADGES ───────────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;gap:3px;padding:3px 8px;border-radius:var(--radius-full);font-size:.68rem;font-weight:600;letter-spacing:.02em}
.badge-blue  {background:var(--accent-dim);color:var(--accent)}
.badge-green {background:rgba(6,214,160,.12);color:#06d6a0}
.badge-yellow{background:rgba(245,158,11,.12);color:#f59e0b}
.badge-red   {background:rgba(239,68,68,.12);color:#f87171}
.badge-purple{background:rgba(139,92,246,.12);color:#a78bfa}
.badge-gray  {background:rgba(139,149,168,.1);color:var(--text-secondary)}

/* ── PROGRESS ─────────────────────────────────────────── */
.progress{height:5px;background:var(--bg-tertiary);border-radius:var(--radius-full);overflow:hidden}
.progress-bar{height:100%;border-radius:var(--radius-full);background:linear-gradient(90deg,var(--accent),var(--accent-light));transition:width .6s ease;box-shadow:0 0 6px var(--accent-glow)}
.progress-bar.green {background:linear-gradient(90deg,#059669,#06d6a0)}
.progress-bar.yellow{background:linear-gradient(90deg,#d97706,#f59e0b)}
.progress-bar.red   {background:linear-gradient(90deg,#dc2626,#f87171)}
.progress-bar.purple{background:linear-gradient(90deg,#7c3aed,#8b5cf6)}

/* ── MODAL ────────────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.62);backdrop-filter:blur(6px);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .3s ease}
.modal-overlay.active{opacity:1;pointer-events:all}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;transform:scale(.94) translateY(10px);transition:var(--tr)}
.modal-overlay.active .modal{transform:scale(1) translateY(0)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 13px;border-bottom:1px solid var(--border)}
.modal-title{font-family:var(--font-display);font-size:.92rem;font-weight:700;color:var(--text-primary)}
.modal-close{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--tr)}
.modal-close:hover{background:var(--accent-dim);color:var(--accent)}
.modal-body{padding:18px 20px}
.modal-footer{padding:13px 20px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:flex-end;gap:9px}
.confirm-dialog{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:26px;max-width:360px;width:100%;text-align:center;transform:scale(.94);transition:var(--tr)}
.modal-overlay.active .confirm-dialog{transform:scale(1)}
.confirm-icon{font-size:2.2rem;margin-bottom:10px}
.confirm-title{font-family:var(--font-display);font-size:1rem;font-weight:800;margin-bottom:7px;color:var(--text-primary)}
.confirm-message{font-size:.845rem;color:var(--text-secondary);margin-bottom:18px}
.confirm-actions{display:flex;gap:9px;justify-content:center}

/* ── TOASTS ───────────────────────────────────────────── */
#toast-container{position:fixed;bottom:22px;right:22px;z-index:1000;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{display:flex;align-items:center;gap:10px;padding:11px 15px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);font-size:.83rem;font-weight:500;color:var(--text-primary);box-shadow:var(--shadow-md);animation:toastIn .25s ease both;pointer-events:all;cursor:pointer}
.toast.removing{animation:toastOut .25s ease both}
.toast.success{border-left:3px solid #06d6a0}
.toast.error  {border-left:3px solid #f87171}
.toast.info   {border-left:3px solid var(--accent)}
.toast.warning{border-left:3px solid #f59e0b}

/* ── TABS ─────────────────────────────────────────────── */
.tabs{display:flex;gap:3px;border-bottom:1px solid var(--border);margin-bottom:16px}
.tab-btn{padding:8px 15px;font-size:.83rem;font-weight:600;color:var(--text-secondary);border-radius:var(--radius-sm) var(--radius-sm) 0 0;transition:var(--tr);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer}
.tab-btn:hover{color:var(--text-primary);background:var(--accent-dim)}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);background:var(--accent-dim)}
.tab-pane{display:none}
.tab-pane.active{display:block}
.tabs-wrapper{margin-top:4px}

/* ── PAGE HEADER ──────────────────────────────────────── */
.page-header{margin-bottom:20px}
.page-header h1{font-family:var(--font-display);font-size:1.55rem;font-weight:800;letter-spacing:-.03em;background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-header p{color:var(--text-secondary);font-size:.845rem;margin-top:3px}

/* ── EMPTY STATE ──────────────────────────────────────── */
.empty-state{text-align:center;padding:36px 18px;color:var(--text-muted)}
.empty-state-icon{font-size:2.4rem;margin-bottom:9px;opacity:.55}
.empty-state h3{font-size:.92rem;font-weight:600;color:var(--text-secondary);margin-bottom:4px}
.empty-state p{font-size:.8rem}

/* ── TOGGLE SWITCH ────────────────────────────────────── */
.toggle-switch{position:relative;width:44px;height:24px;flex-shrink:0}
.toggle-switch input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-full);cursor:pointer;transition:var(--tr)}
.toggle-slider::before{content:'';position:absolute;height:16px;width:16px;left:3px;bottom:3px;background:var(--text-muted);border-radius:50%;transition:var(--tr)}
input:checked+.toggle-slider{background:var(--accent);border-color:var(--accent)}
input:checked+.toggle-slider::before{transform:translateX(20px);background:#fff}

/* ── COLOR SWATCHES ───────────────────────────────────── */
.color-swatches{display:flex;gap:8px;flex-wrap:wrap}
.color-swatch{width:26px;height:26px;border-radius:50%;cursor:pointer;transition:var(--trp);border:2px solid transparent}
.color-swatch:hover{transform:scale(1.2)}
.color-swatch.active{border-color:var(--text-primary);transform:scale(1.1);box-shadow:0 0 0 2px var(--bg-card)}

/* ── FILTERS ──────────────────────────────────────────── */
.filters{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:13px}
.filter-chip{display:inline-flex;align-items:center;gap:4px;padding:5px 11px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:var(--tr)}
.filter-chip:hover{border-color:var(--border-hover);color:var(--text-primary)}
.filter-chip.active{background:var(--accent-dim);border-color:var(--border-accent);color:var(--accent)}

/* ── TOOLBAR ──────────────────────────────────────────── */
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.toolbar-left{flex:1;display:flex;align-items:center;gap:8px}
.toolbar-right{display:flex;align-items:center;gap:6px}

/* ── UPLOAD ZONE ──────────────────────────────────────── */
.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:36px 18px;text-align:center;cursor:pointer;transition:var(--tr)}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--border-accent);background:var(--accent-dim)}
.upload-icon{font-size:2.2rem;margin-bottom:8px;opacity:.6}
.upload-text{font-weight:600;font-size:.875rem;color:var(--text-primary);margin-bottom:4px}
.upload-hint{font-size:.75rem;color:var(--text-muted)}

/* ── FILES ────────────────────────────────────────────── */
.files-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}
.file-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:13px;cursor:pointer;transition:var(--tr);display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px}
.file-card:hover{border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.file-icon{font-size:2rem}
.file-name{font-size:.74rem;font-weight:600;word-break:break-all;color:var(--text-primary)}
.file-size{font-size:.67rem;color:var(--text-muted)}

/* ── BOOKMARKS ────────────────────────────────────────── */
.bookmark-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px;transition:var(--tr)}
.bookmark-card:hover{border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.bookmark-favicon{width:26px;height:26px;border-radius:6px;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:.85rem;flex-shrink:0;overflow:hidden}
.bookmark-title{font-size:.83rem;font-weight:700;color:var(--text-primary)}
.bookmark-url{font-size:.7rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ── NOTES ────────────────────────────────────────────── */
.notes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.note-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:15px;cursor:pointer;transition:var(--tr);position:relative;overflow:hidden}
.note-card::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--accent);opacity:0;transition:var(--tr)}
.note-card:hover::before,.note-card.pinned::before{opacity:1}
.note-card.pinned::before{background:#f59e0b}
.note-card:hover{border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.note-title{font-weight:700;font-size:.855rem;margin-bottom:5px;color:var(--text-primary);display:flex;align-items:center;gap:6px}
.note-preview{font-size:.79rem;color:var(--text-secondary);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;line-height:1.55}
.note-footer{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.note-date{font-size:.68rem;color:var(--text-muted)}
.note-actions{display:flex;gap:3px;opacity:0;transition:var(--tr)}
.note-card:hover .note-actions{opacity:1}

/* ── JOURNAL ──────────────────────────────────────────── */
.journal-entry{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:10px;transition:var(--tr)}
.journal-entry:hover{border-color:var(--border-hover)}
.journal-entry-header{display:flex;align-items:center;gap:11px;padding:11px 15px;background:var(--bg-tertiary);border-bottom:1px solid var(--border)}
.journal-mood{font-size:1.2rem}
.journal-date{font-family:var(--font-display);font-size:.78rem;font-weight:700;color:var(--text-primary)}
.journal-entry-body{padding:12px 15px;font-size:.855rem;line-height:1.65;color:var(--text-secondary);white-space:pre-wrap}
.mood-selector{display:flex;gap:6px;flex-wrap:wrap}
.mood-btn{width:40px;height:40px;border-radius:var(--radius-sm);background:var(--bg-tertiary);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:1.3rem;cursor:pointer;transition:var(--trp)}
.mood-btn:hover{transform:scale(1.14);border-color:var(--border-hover)}
.mood-btn.active{border-color:var(--accent);box-shadow:0 0 10px var(--accent-glow);transform:scale(1.1)}

/* ── HABITS ───────────────────────────────────────────── */
.habit-tracker-row{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--border)}
.habit-tracker-row:last-child{border-bottom:none}
.habit-tracker-info{flex:1}
.habit-tracker-name{font-size:.855rem;font-weight:600;margin-bottom:2px;color:var(--text-primary)}
.habit-tracker-sub{font-size:.7rem;color:var(--text-muted)}
.habit-week-dots{display:flex;gap:4px}
.habit-week-dot{width:26px;height:26px;border-radius:7px;background:var(--bg-tertiary);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.6rem;font-weight:700;color:var(--text-muted);cursor:pointer;transition:var(--trp)}
.habit-week-dot:hover{border-color:var(--accent)}
.habit-week-dot.done{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 0 7px var(--accent-glow)}
.habit-streak-badge{display:flex;align-items:center;gap:3px;font-size:.74rem;font-weight:700;color:#f59e0b;background:rgba(245,158,11,.12);padding:3px 8px;border-radius:var(--radius-full);white-space:nowrap}

/* ── GOALS ────────────────────────────────────────────── */
.goal-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:17px;margin-bottom:10px;transition:var(--tr)}
.goal-card:hover{border-color:var(--border-hover);transform:translateY(-1px)}
.goal-title{font-weight:700;font-size:.9rem;margin-bottom:3px;color:var(--text-primary)}
.goal-sub{font-size:.76rem;color:var(--text-muted)}

/* ── GYM ──────────────────────────────────────────────── */
.workout-log-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg-tertiary);border-radius:var(--radius-sm);margin-bottom:5px}
.workout-exercise{flex:1;font-size:.855rem;font-weight:600;color:var(--text-primary)}
.workout-sets{font-size:.76rem;color:var(--text-muted)}
.workout-weight{font-size:.83rem;font-weight:700;color:var(--accent)}
.pr-card{background:linear-gradient(135deg,var(--accent-dim),rgba(139,92,246,.08));border:1px solid var(--border-accent);border-radius:var(--radius-md);padding:12px;text-align:center;transition:var(--tr)}
.pr-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-accent)}
.pr-exercise{font-size:.72rem;color:var(--text-muted);margin-bottom:3px}
.pr-value{font-family:var(--font-display);font-size:1.4rem;font-weight:800;letter-spacing:-.04em;color:var(--accent)}
.pr-unit{font-size:.7rem;color:var(--text-secondary)}

/* ── PDF TOOLS ────────────────────────────────────────── */
.pdf-tool-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;text-align:center;cursor:pointer;transition:var(--tr)}
.pdf-tool-card:hover{border-color:var(--border-hover);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.pdf-tool-icon{font-size:2.2rem;margin-bottom:8px}
.pdf-tool-title{font-family:var(--font-display);font-size:.92rem;font-weight:700;margin-bottom:4px;color:var(--text-primary)}
.pdf-tool-desc{font-size:.76rem;color:var(--text-secondary)}

/* ── ABOUT ────────────────────────────────────────────── */
.about-hero{text-align:center;padding:42px 26px;background:linear-gradient(135deg,var(--accent-dim) 0%,var(--bg-card) 55%,rgba(139,92,246,.08) 100%);border-radius:var(--radius-xl);border:1px solid var(--border-accent);margin-bottom:20px}
.about-logo{width:66px;height:66px;background:linear-gradient(135deg,var(--accent),var(--accent-2));border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:1.9rem;margin:0 auto 12px;box-shadow:0 0 32px var(--accent-glow)}
.about-title{font-family:var(--font-display);font-size:2.2rem;font-weight:800;letter-spacing:-.05em;margin-bottom:6px;background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.about-tagline{font-size:.9rem;color:var(--text-secondary);max-width:430px;margin:0 auto}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:11px;margin-bottom:20px}
.feature-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:15px;transition:var(--tr)}
.feature-item:hover{border-color:var(--border-hover);transform:translateY(-2px)}
.feature-item-icon{font-size:1.5rem;margin-bottom:7px}
.feature-item-title{font-weight:700;font-size:.845rem;margin-bottom:3px;color:var(--text-primary)}
.feature-item-desc{font-size:.74rem;color:var(--text-secondary)}

/* ── MEMORY ───────────────────────────────────────────── */
.memory-full-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--tr)}
.memory-full-card:hover{border-color:var(--border-hover)}
.memory-img-full{height:145px;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:3rem;color:var(--text-muted)}
.memory-card-body{padding:12px 14px}
.memory-card-title{font-weight:700;font-size:.855rem;margin-bottom:3px;color:var(--text-primary)}
.memory-card-desc{font-size:.78rem;color:var(--text-secondary)}

/* ── PLANNER ──────────────────────────────────────────── */
.time-block{display:flex;gap:10px;padding:6px 0;border-bottom:1px solid var(--border)}
.time-block:last-child{border-bottom:none}
.time-label{font-size:.68rem;color:var(--text-muted);width:40px;flex-shrink:0;padding-top:2px}
.time-event{flex:1;background:var(--accent-dim);border:1px solid var(--border-accent);border-left:3px solid var(--accent);border-radius:var(--radius-sm);padding:5px 9px;font-size:.78rem;color:var(--text-primary)}
.time-slot-empty{flex:1;height:30px;border-radius:var(--radius-sm);border:1px dashed var(--border);cursor:pointer;transition:var(--tr);display:flex;align-items:center;justify-content:center;font-size:.72rem;color:var(--text-muted);opacity:0}
.time-block:hover .time-slot-empty{opacity:1;background:var(--bg-tertiary)}

/* ── STAT CARDS ───────────────────────────────────────── */
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:17px 18px;transition:var(--tr);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2));opacity:0;transition:var(--tr)}
.stat-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.stat-card:hover::before{opacity:1}
.stat-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:11px}
.stat-icon{width:38px;height:38px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.05rem;flex-shrink:0}
.stat-icon.blue  {background:var(--accent-dim)}
.stat-icon.green {background:rgba(6,214,160,.12)}
.stat-icon.yellow{background:rgba(245,158,11,.12)}
.stat-icon.purple{background:rgba(139,92,246,.12)}
.stat-icon.red   {background:rgba(239,68,68,.12)}
.stat-trend{font-size:.68rem;font-weight:600;display:flex;align-items:center;gap:2px}
.stat-trend.up  {color:#06d6a0}
.stat-trend.down{color:#f87171}
.stat-value{font-family:var(--font-display);font-size:1.7rem;font-weight:800;letter-spacing:-.04em;line-height:1;margin-bottom:3px;color:var(--text-primary)}
.stat-label{font-size:.74rem;color:var(--text-secondary)}

/* ── SETTINGS ─────────────────────────────────────────── */
.settings-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:13px}
.settings-section-header{padding:13px 17px;background:var(--bg-tertiary);border-bottom:1px solid var(--border);font-family:var(--font-display);font-size:.86rem;font-weight:700;color:var(--text-primary)}
.settings-row{display:flex;align-items:center;justify-content:space-between;padding:12px 17px;border-bottom:1px solid var(--border);transition:var(--tr);gap:11px}
.settings-row:last-child{border-bottom:none}
.settings-row:hover{background:var(--bg-card-hover)}
.settings-row-info{flex:1}
.settings-row-label{font-size:.855rem;font-weight:600;color:var(--text-primary)}
.settings-row-desc{font-size:.74rem;color:var(--text-muted);margin-top:2px}

/* ── LIST ITEMS ───────────────────────────────────────── */
.list-item{display:flex;align-items:center;gap:11px;padding:11px 13px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:6px;transition:var(--tr);cursor:pointer}
.list-item:hover{border-color:var(--border-hover);background:var(--bg-card-hover)}
.list-item-main{flex:1;min-width:0}
.list-item-title{font-size:.855rem;font-weight:600;margin-bottom:2px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-item-sub{font-size:.74rem;color:var(--text-muted)}
.list-item-actions{display:flex;gap:3px;opacity:0;transition:var(--tr)}
.list-item:hover .list-item-actions{opacity:1}

/* ── SIDEBAR OVERLAY ──────────────────────────────────── */
.sidebar-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.55);
  z-index:99;
  backdrop-filter:blur(2px);
  opacity:0;
  pointer-events:none;
  transition:opacity .28s ease;
}
.sidebar-overlay.active{opacity:1;pointer-events:all}

/* ── CHART ────────────────────────────────────────────── */
.chart-container{position:relative;height:210px;margin-top:8px}

/* ── RIPPLE ───────────────────────────────────────────── */
.ripple-container{position:relative;overflow:hidden}
.ripple-effect{position:absolute;border-radius:50%;background:rgba(255,255,255,.18);transform:scale(0);animation:ripple .5s linear;pointer-events:none}

/* ── SPINNER ──────────────────────────────────────────── */
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}

/* ── FOCUS ────────────────────────────────────────────── */
*:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-sm)}

/* ── HELPERS ──────────────────────────────────────────── */
.grid{display:grid;gap:14px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.divider{height:1px;background:var(--border);margin:13px 0}

/* ── KEYFRAMES ────────────────────────────────────────── */
@keyframes fadeInUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes toastIn{from{opacity:0;transform:translateX(28px) scale(.94)}to{opacity:1;transform:translateX(0) scale(1)}}
@keyframes toastOut{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(28px)}}
@keyframes shimmer{from{background-position:-200% 0}to{background-position:200% 0}}
@keyframes ripple{to{transform:scale(2.5);opacity:0}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

.anim-fade-up{animation:fadeInUp .35s ease both}
.stagger>*{animation:fadeInUp .38s ease both}
.stagger>*:nth-child(1){animation-delay:.04s}.stagger>*:nth-child(2){animation-delay:.08s}.stagger>*:nth-child(3){animation-delay:.12s}.stagger>*:nth-child(4){animation-delay:.16s}.stagger>*:nth-child(5){animation-delay:.20s}.stagger>*:nth-child(6){animation-delay:.24s}.stagger>*:nth-child(7){animation-delay:.28s}.stagger>*:nth-child(8){animation-delay:.32s}

/* ── RESPONSIVE ───────────────────────────────────────── */
@media(max-width:1024px){:root{--sidebar-w:200px}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);z-index:200;width:240px!important;transition:transform .28s ease}
  .sidebar.mobile-open{transform:translateX(0)}
  .sidebar-overlay{display:block}
  .main-content{margin-left:0!important}
  .page-content{padding:13px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .topbar{padding:0 13px}
  .notes-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .files-grid{grid-template-columns:repeat(2,1fr)}
}
/* ── MOBILE SIDEBAR FIX ───────────────────────────────── */
@media (max-width: 768px) {
  /* 1. Mobile par sidebar ko screen ke bahar rakho */
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-w) !important;
    z-index: 300;
    box-shadow: var(--shadow-lg);
  }

  /* 2. Jab JS se '.open' ya '.active' class lage tabhi sidebar dikhe */
  .sidebar.open,
  .sidebar.active {
    transform: translateX(0) !important;
  }

  /* 3. Mobile par main content sidebar ke peeche daba na rahe */
  .main-content,
  .main-content.expanded {
    margin-left: 0 !important;
  }

  /* 4. Backdrop overlay (baahar click karne par close hone ke liye) */
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 299;
    opacity: 0;
    pointer-events: none;
    transition: var(--tr);
  }

  .sidebar-backdrop.active,
  .sidebar-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }
}