/* =========================================================
   LifeAssist AI — Nutrition Hub
   ========================================================= */

:root{
  --nh-purple: #6C5CE7;
  --nh-purple-dark: #5b4bd6;
  --nh-purple-light: #EEECFD;
  --nh-bg: #F5F6FB;
  --nh-card: #FFFFFF;
  --nh-border: #ECEDF3;
  --nh-text: #1F2233;
  --nh-text-soft: #8A8DA3;
  --nh-orange: #FF8A3D;
  --nh-orange-bg: #FFF1E6;
  --nh-green: #2ECC71;
  --nh-green-bg: #E7F9EF;
  --nh-blue: #3D8BFF;
  --nh-blue-bg: #E9F2FF;
  --nh-yellow: #F5B93D;
  --nh-yellow-bg: #FEF6E3;
  --nh-water: #29B6F6;
  --nh-water-bg: #E3F6FE;
  --nh-red: #F0506E;
  --nh-red-bg: #FDEAEF;
  --nh-radius: 18px;
  --nh-radius-sm: 12px;
  --nh-shadow: 0 4px 22px rgba(31, 34, 51, 0.06);
}

[data-theme="dark"]{
  --nh-bg: #14151F;
  --nh-card: #1C1E2B;
  --nh-border: #2A2C3C;
  --nh-text: #F1F2F8;
  --nh-text-soft: #9294AC;
  --nh-purple-light: #262242;
  --nh-shadow: 0 4px 22px rgba(0,0,0,0.35);
}

*{ box-sizing: border-box; }

body.nh-body{
  background: var(--nh-bg);
  color: var(--nh-text);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

.app-shell{ display:flex; min-height:100vh; overflow-x: hidden; }

/* ============ SIDEBAR ============ */
.sidebar{
  width: 250px;
  flex-shrink: 0;
  background: var(--nh-card, #ffffff);
  border-right: 1px solid var(--nh-border, #e2e8f0);
  display: flex;
  flex-direction: column;
  padding: 28px 20px;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 100;
  transition: transform .3s ease;
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 6px 32px;
}
.brand-icon{
  width: 40px; height: 40px; border-radius: 12px;
  background: rgba(108,92,231,0.12);
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  flex-shrink: 0;
}
.brand-icon i{ color: #6C5CE7; }
.brand-name{ font-family:'Plus Jakarta Sans', sans-serif; font-weight: 800; font-size: 17px; line-height: 1.1; color: var(--nh-text, #1e293b); }
.brand-tag{ font-size: 11.5px; color: var(--nh-text-soft, #64748b); margin-top: 2px; }
.sidebar-close {
  margin-left: auto;
  border: none;
  background: none;
  font-size: 18px;
  color: var(--nh-text-soft, #64748b);
  cursor: pointer;
}

.side-nav{
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.side-link{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 12px;
  color: var(--nh-text-soft, #64748b);
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.side-link i{ font-size: 17px; width: 20px; text-align: center; flex-shrink: 0; }
.side-link:hover{ background: var(--nh-bg, #f8fafc); color: var(--nh-text, #1e293b); transform: translateX(2px); }
.side-link.active{
  background: #6C5CE7;
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(108, 92, 231, 0.35);
}
.side-link.active i{ color: #fff !important; }
.side-link.active:hover{ transform: none; }

.sidebar-footer{
  border-top: 1px solid var(--nh-border, #e2e8f0);
  padding-top: 16px;
  margin-top: auto;
}
.logout-btn, .logout {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 500;
  color: #E5484D;
  border: none;
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.logout-btn i, .logout i { font-size: 17px; width: 20px; text-align: center; }
.logout-btn:hover, .logout:hover { background: #FEF2F2; color: #DC2626; transform: translateX(2px); }

/* ============ MAIN CONTENT ============ */
.main-content{ flex:1; min-width:0; padding: 28px 32px 60px; overflow-x: hidden; }

.mobile-topbar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--nh-card);
  border-bottom: 1px solid var(--nh-border);
  position: sticky;
  top: 0;
  z-index: 1020;
}
.hamburger-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--nh-text);
  display: flex;
  align-items: center;
}
.mobile-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-logo-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 16px;
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1025;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.sidebar-overlay.show { display: block; opacity: 1; }

.nh-topbar{ display:flex; align-items:center; justify-content:space-between; margin-bottom:22px; gap:16px; flex-wrap:wrap;}
.nh-title{ font-size:26px; font-weight:800; margin:0; display:flex; align-items:center; gap:8px;}
.nh-subtitle{ color:var(--nh-text-soft); font-size:14px; margin:2px 0 0;}
.nh-topbar-actions{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.nh-pill{
  display:flex; align-items:center; gap:8px; background:var(--nh-card); border:1px solid var(--nh-border);
  border-radius:12px; padding:9px 14px; font-size:13.5px; color:var(--nh-text); cursor:pointer;
}
.nh-search-pill{ min-width:230px; }
.nh-search-pill input{ border:none; outline:none; background:transparent; font-size:13.5px; width:100%; color:var(--nh-text);}
.nh-icon-btn{
  width:40px; height:40px; border-radius:12px; background:var(--nh-card); border:1px solid var(--nh-border);
  display:flex; align-items:center; justify-content:center; position:relative; cursor:pointer; color:var(--nh-text);
}
.nh-icon-btn .badge{
  position:absolute; top:-5px; right:-5px; background:#F0506E; color:#fff; font-size:10px;
  border-radius:50%; width:18px; height:18px; display:flex; align-items:center; justify-content:center;
}

/* ============ STAT CARDS ============ */
.nh-stats-row{ display:grid; grid-template-columns: repeat(5, 1fr); gap:16px; margin-bottom:22px; }
@media (max-width: 1200px){ .nh-stats-row{ grid-template-columns: repeat(3,1fr);} }
@media (max-width: 700px){ .nh-stats-row{ grid-template-columns: repeat(2,1fr);} }

.nh-stat-card{
  background:var(--nh-card); border-radius:var(--nh-radius); padding:16px; box-shadow:var(--nh-shadow);
  border:1px solid var(--nh-border); cursor:pointer; transition: transform .15s ease;
}
.nh-stat-card:hover{ transform: translateY(-2px); }
.nh-stat-top{ display:flex; align-items:center; gap:10px; margin-bottom:10px; }
.nh-stat-icon{ width:36px; height:36px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:16px; flex-shrink:0;}
.nh-stat-icon.orange{ background:var(--nh-orange-bg); color:var(--nh-orange); }
.nh-stat-icon.green{ background:var(--nh-green-bg); color:var(--nh-green); }
.nh-stat-icon.blue{ background:var(--nh-blue-bg); color:var(--nh-blue); }
.nh-stat-icon.yellow{ background:var(--nh-yellow-bg); color:var(--nh-yellow); }
.nh-stat-icon.water{ background:var(--nh-water-bg); color:var(--nh-water); }
.nh-stat-label{ font-size:13px; color:var(--nh-text-soft); font-weight:600; }
.nh-stat-value{ font-size:20px; font-weight:800; margin-bottom:8px; }
.nh-stat-value small{ font-size:13px; font-weight:600; color:var(--nh-text-soft); }
.nh-progress{ height:7px; border-radius:6px; background: var(--nh-purple-light); overflow:hidden; }
.nh-progress > div{ height:100%; border-radius:6px; width:0%; transition: width 1s cubic-bezier(.4,0,.2,1); }
.nh-progress.orange > div{ background: var(--nh-orange); }
.nh-progress.green > div{ background: var(--nh-green); }
.nh-progress.blue > div{ background: var(--nh-blue); }
.nh-progress.yellow > div{ background: var(--nh-yellow); }
.nh-progress.water > div{ background: var(--nh-water); }
.nh-stat-foot{ font-size:11.5px; color:var(--nh-text-soft); margin-top:6px; }

/* ============ GENERIC CARD ============ */
.nh-card{
  background:var(--nh-card); border-radius:var(--nh-radius); padding:20px; box-shadow:var(--nh-shadow);
  border:1px solid var(--nh-border); margin-bottom:22px;
}
.nh-card-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.nh-card-title{ font-size:15.5px; font-weight:700; display:flex; align-items:center; gap:8px; margin:0;}
.nh-card-link{ font-size:13px; color:var(--nh-purple); text-decoration:none; font-weight:600; }

/* ============ LOG MEAL ============ */
.nh-meal-input{
  width:100%; border:1.5px solid var(--nh-purple); border-radius:12px; padding:12px 14px;
  font-size:14px; outline:none; background:var(--nh-card); color:var(--nh-text); resize:none;
}
.nh-chip-row{ display:flex; gap:8px; flex-wrap:wrap; margin:12px 0; }
.nh-chip{
  border:1px solid var(--nh-border); background: var(--nh-bg); color:var(--nh-text);
  border-radius:20px; padding:6px 14px; font-size:12.5px; cursor:pointer; font-weight:500;
}
.nh-chip:hover{ background:var(--nh-purple-light); border-color:var(--nh-purple); color:var(--nh-purple); }
.nh-meal-type-row{ display:flex; gap:8px; margin-bottom:12px; flex-wrap:wrap;}
.nh-meal-type-btn{
  border:1px solid var(--nh-border); background:var(--nh-bg); border-radius:10px; padding:7px 12px; font-size:12.5px; font-weight:600; color:var(--nh-text-soft); cursor:pointer;
}
.nh-meal-type-btn.active{ background:var(--nh-purple); color:#fff; border-color:var(--nh-purple); }
.nh-btn-primary{
  width:100%; background: linear-gradient(135deg,var(--nh-purple),#8F7CFF); color:#fff; border:none;
  border-radius:12px; padding:12px; font-weight:700; font-size:14.5px; display:flex; align-items:center; justify-content:center; gap:8px;
}
.nh-btn-primary:hover{ opacity:.92; color:#fff; }
.nh-hint{ text-align:center; font-size:12px; color:var(--nh-text-soft); margin-top:10px; display:flex; align-items:center; justify-content:center; gap:6px;}

.nh-analysis-box{
  margin-top:16px; border:1px dashed var(--nh-purple); border-radius:14px; padding:16px; background:var(--nh-purple-light);
  display:none;
}
.nh-analysis-box.show{ display:block; animation: nhFadeIn .3s ease; }
@keyframes nhFadeIn{ from{opacity:0; transform:translateY(-6px);} to{opacity:1; transform:translateY(0);} }
.nh-analysis-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(90px,1fr)); gap:10px; margin:12px 0; }
.nh-analysis-item{ background:var(--nh-card); border-radius:10px; padding:10px; text-align:center; }
.nh-analysis-item b{ display:block; font-size:16px; }
.nh-analysis-item span{ font-size:11px; color:var(--nh-text-soft); }
.nh-score-badge{ display:inline-flex; align-items:center; gap:6px; padding:5px 12px; border-radius:20px; font-size:12.5px; font-weight:700; }
.nh-score-badge.great{ background:var(--nh-green-bg); color:var(--nh-green); }
.nh-score-badge.good{ background:var(--nh-blue-bg); color:var(--nh-blue); }
.nh-score-badge.okay{ background:var(--nh-yellow-bg); color:#B8890A; }
.nh-score-badge.poor{ background:var(--nh-red-bg); color:var(--nh-red); }
.nh-suggestion-list{ font-size:12.5px; margin:10px 0 0; padding-left:18px; color:var(--nh-text-soft); }

/* ============ TODAY'S MEALS ============ */
.nh-meal-row{
  display:flex; align-items:center; gap:12px; padding:12px 8px; border-radius:12px; position:relative;
}
.nh-meal-row:hover{ background: var(--nh-bg); }
.nh-meal-icon{ width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:16px; flex-shrink:0;}
.nh-meal-icon.breakfast{ background:var(--nh-orange-bg); color:var(--nh-orange);}
.nh-meal-icon.lunch{ background:var(--nh-green-bg); color:var(--nh-green);}
.nh-meal-icon.snack{ background:var(--nh-blue-bg); color:var(--nh-blue);}
.nh-meal-icon.dinner{ background:var(--nh-purple-light); color:var(--nh-purple);}
.nh-meal-info b{ font-size:13.5px; display:block; }
.nh-meal-info span{ font-size:11.5px; color:var(--nh-text-soft); }
.nh-meal-right{ margin-left:auto; text-align:right; }
.nh-meal-right b{ font-size:13.5px; display:block; }
.nh-meal-right span{ font-size:11px; color:var(--nh-green); }
.nh-meal-menu-btn{ border:none; background:transparent; color:var(--nh-text-soft); font-size:16px; padding:2px 6px; margin-left:6px;}
.nh-meal-menu{ min-width:170px; }
.nh-empty{ text-align:center; padding:30px 10px; color:var(--nh-text-soft); font-size:13px; }

/* ============ NUTRIENT BREAKDOWN ============ */
.nh-chart-tabs{ display:flex; gap:6px; background:var(--nh-bg); padding:4px; border-radius:10px; }
.nh-chart-tabs button{
  border:none; background:transparent; font-size:11.5px; font-weight:600; padding:5px 9px; border-radius:8px; color:var(--nh-text-soft);
}
.nh-chart-tabs button.active{ background:var(--nh-card); color:var(--nh-purple); box-shadow:0 2px 6px rgba(0,0,0,.08);}
.nh-legend-row{ display:flex; align-items:center; gap:8px; font-size:12.5px; margin-bottom:8px; }
.nh-dot{ width:9px; height:9px; border-radius:50%; flex-shrink:0; }
.nh-donut-center b{ font-size:20px; display:block; }
.nh-donut-center span{ font-size:11px; color:var(--nh-text-soft); }

/* ============ NUTRITION OVERVIEW ============ */
.nh-overview-item{ margin-bottom:14px; cursor:pointer; }
.nh-overview-item:last-child{ margin-bottom:0; }
.nh-overview-top{ display:flex; align-items:center; gap:10px; margin-bottom:6px; }
.nh-overview-top .nh-mini-icon{ width:26px; height:26px; border-radius:7px; display:flex; align-items:center; justify-content:center; font-size:12px;}
.nh-overview-top b{ font-size:13px; flex:1; }
.nh-overview-top span{ font-size:12px; color:var(--nh-text-soft); }
.nh-overview-pct{ font-size:12px; font-weight:700; width:36px; text-align:right; }

/* ============ RECOMMENDED ============ */
.nh-reco-card{ border-radius:14px; overflow:hidden; border:1px solid var(--nh-border); background:var(--nh-bg); cursor:pointer; height:100%; }
.nh-reco-card img{ width:100%; height:110px; object-fit:cover; }
.nh-reco-body{ padding:10px 12px; }
.nh-reco-body b{ font-size:13px; display:block; }
.nh-reco-body span{ font-size:11.5px; color:var(--nh-text-soft); }
.nh-reco-time{ font-size:11px; color:var(--nh-text-soft); margin-top:6px; display:flex; align-items:center; gap:4px;}

/* ============ AI COACH ============ */
.nh-coach-card{ background:var(--nh-card); border-radius:var(--nh-radius); box-shadow:var(--nh-shadow); border:1px solid var(--nh-border); padding:18px; margin-bottom:22px;}
.nh-coach-head{ display:flex; align-items:center; gap:10px; margin-bottom:14px;}
.nh-coach-avatar{ width:40px; height:40px; border-radius:12px; background:linear-gradient(135deg,var(--nh-purple),#8F7CFF); display:flex; align-items:center; justify-content:center; color:#fff;}
.nh-coach-head b{ font-size:14px; display:block;}
.nh-coach-head .status{ font-size:11px; color:var(--nh-green); display:flex; align-items:center; gap:4px;}
.nh-coach-head .status i{ font-size:8px;}
.nh-coach-msg{ background:var(--nh-bg); border-radius:12px; padding:12px; font-size:13px; margin-bottom:14px; }
.nh-coach-action{
  display:flex; align-items:center; gap:12px; padding:10px 8px; border-radius:12px; cursor:pointer; text-decoration:none; color:var(--nh-text);
}
.nh-coach-action:hover{ background:var(--nh-bg); }
.nh-coach-action-icon{ width:34px; height:34px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:14px; flex-shrink:0;}
.nh-coach-action b{ font-size:13px; display:block; }
.nh-coach-action span{ font-size:11px; color:var(--nh-text-soft); }
.nh-coach-action i.chev{ margin-left:auto; color:var(--nh-text-soft); }

.nh-recent-chat{ display:flex; gap:10px; align-items:flex-start; padding:9px 4px; border-radius:10px; }
.nh-recent-chat:hover{ background:var(--nh-bg); }
.nh-recent-chat i{ color:var(--nh-purple); margin-top:2px;}
.nh-recent-chat b{ font-size:12.5px; display:block; }
.nh-recent-chat span{ font-size:11px; color:var(--nh-text-soft); }

.nh-coach-input-row{ display:flex; gap:8px; margin-top:6px; }
.nh-coach-input-row input{ flex:1; border:1px solid var(--nh-border); border-radius:12px; padding:10px 12px; font-size:13px; outline:none; background:var(--nh-bg); color:var(--nh-text);}
.nh-coach-send{ width:40px; height:40px; border-radius:12px; background:var(--nh-purple); color:#fff; border:none; display:flex; align-items:center; justify-content:center; flex-shrink:0;}

/* ============ WATER WIDGET ============ */
.nh-water-btns{ display:flex; gap:8px; }
.nh-water-btns button{ flex:1; border:1px solid var(--nh-border); background:var(--nh-water-bg); color:var(--nh-water); border-radius:10px; padding:8px 4px; font-size:11.5px; font-weight:700; }
.nh-water-history{ display:flex; gap:6px; margin-top:10px; }
.nh-water-history .drop{ flex:1; height:28px; border-radius:6px; background:var(--nh-border); position:relative; overflow:hidden;}
.nh-water-history .drop > div{ position:absolute; bottom:0; left:0; right:0; background:var(--nh-water); }
.nh-water-history .drop span{ position:absolute; bottom:-16px; left:0; right:0; text-align:center; font-size:9px; color:var(--nh-text-soft);}

/* ============ SEARCH DROPDOWN ============ */
.nh-search-wrap{ position:relative; }
.nh-search-dropdown{
  position:absolute; top:calc(100% + 8px); left:0; width:340px; background:var(--nh-card); border:1px solid var(--nh-border);
  border-radius:14px; box-shadow:0 12px 30px rgba(0,0,0,.15); padding:12px; z-index:1050; display:none; max-height:400px; overflow-y:auto;
}
.nh-search-dropdown.show{ display:block; }
.nh-search-sec-title{ font-size:11px; text-transform:uppercase; letter-spacing:.04em; color:var(--nh-text-soft); font-weight:700; margin:10px 0 6px; }
.nh-search-item{ display:flex; align-items:center; justify-content:space-between; padding:7px 8px; border-radius:8px; font-size:13px; cursor:pointer; }
.nh-search-item:hover{ background:var(--nh-bg); }
.nh-search-item small{ color:var(--nh-text-soft); }

/* ============ TOAST ============ */
.nh-toast-container{ position:fixed; bottom:20px; right:20px; z-index:2000; display:flex; flex-direction:column; gap:8px; }
.nh-toast{
  background:var(--nh-text); color:#fff; padding:12px 18px; border-radius:12px; font-size:13px; box-shadow:0 8px 20px rgba(0,0,0,.2);
  display:flex; align-items:center; gap:8px; animation: nhToastIn .25s ease;
}
.nh-toast.success i{ color:var(--nh-green); }
.nh-toast.error i{ color:var(--nh-red); }
@keyframes nhToastIn{ from{opacity:0; transform:translateY(10px);} to{opacity:1; transform:translateY(0);} }

/* ============ MODAL EXTRAS ============ */
.nh-modal-macro{ background:var(--nh-bg); border-radius:12px; padding:12px; text-align:center; }
.nh-modal-macro b{ font-size:17px; display:block; }
.nh-modal-macro span{ font-size:11px; color:var(--nh-text-soft); }
.nh-ingredient-tag{ display:inline-block; background:var(--nh-purple-light); color:var(--nh-purple); border-radius:20px; padding:5px 12px; font-size:12px; margin:3px 3px 0 0; }

/* misc */
.nh-editable{ cursor:pointer; }
.form-control:focus, .form-select:focus{ border-color:var(--nh-purple); box-shadow:0 0 0 .2rem rgba(108,92,231,.15);}
.nh-goal-row{ display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.nh-goal-row label{ width:90px; font-size:13px; font-weight:600; }
::-webkit-scrollbar{ width:8px; height:8px; }
::-webkit-scrollbar-thumb{ background:#D8D9E8; border-radius:8px; }

@media (max-width: 991px) {
  .sidebar {
    transform: translateX(-100%);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1035;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100vh;
  }
  .sidebar.show { transform: translateX(0); box-shadow: var(--nh-shadow); }
  .sidebar-close { display: block; }
  .main-content { padding: 20px 18px 32px; }
  .mobile-topbar { display: flex; }
}