/* =========================================================
   HidroFarm - Main CSS Design System
   ========================================================= */

/* ── CSS Custom Properties ────────────────────────────────── */
:root {
  --green-900: #1B4332;
  --green-800: #2D6A4F;
  --green-700: #40916C;
  --green-600: #52B788;
  --green-400: #95D5B2;
  --green-200: #B7E4C7;
  --green-100: #D8F3DC;
  --green-50:  #EDFAF1;
  --white:     #FFFFFF;
  --gray-50:   #F9FAFB;
  --gray-100:  #F3F4F6;
  --gray-200:  #E5E7EB;
  --gray-300:  #D1D5DB;
  --gray-400:  #9CA3AF;
  --gray-500:  #6B7280;
  --gray-600:  #4B5563;
  --gray-700:  #374151;
  --gray-800:  #1F2937;
  --gray-900:  #111827;
  --warning:   #F59E0B;
  --warning-bg:#FEF3C7;
  --danger:    #EF4444;
  --danger-bg: #FEE2E2;
  --info:      #3B82F6;
  --info-bg:   #DBEAFE;
  --purple:    #8B5CF6;
  --purple-bg: #EDE9FE;
  --success:   var(--green-600);
  --success-bg:var(--green-100);

  --sidebar-width: 260px;
  --header-height: 64px;

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.15), 0 8px 16px rgba(0,0,0,0.10);

  --transition-fast: 0.15s ease;
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.8125rem;
  --font-size-base: 0.9375rem;
  --font-size-md:   1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.25rem;
  --font-size-2xl:  1.5rem;
  --font-size-3xl:  1.875rem;

  --content-max: 1400px;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--gray-800);
  background: var(--gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--green-700);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--green-800); }

img, video { max-width: 100%; display: block; }

ul, ol { list-style: none; }

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

input, select, textarea { font-family: var(--font-family); }

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--gray-900);
}

/* ── App Layout ───────────────────────────────────────────── */
#app {
  display: flex;
  min-height: 100vh;
  background: var(--gray-50);
}

/* ── Sidebar ──────────────────────────────────────────────── */
#sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--green-800);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
}

.sidebar-logo-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}

.sidebar-logo-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.3px;
}

.sidebar-logo-sub {
  font-size: var(--font-size-xs);
  color: var(--green-200);
  margin-top: 1px;
  font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 10px 10px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  margin-bottom: 2px;
  user-select: none;
  position: relative;
}

.nav-item:hover {
  background: rgba(255,255,255,0.1);
}

.nav-item.active {
  background: rgba(255,255,255,0.18);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.12);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--green-400);
  border-radius: 0 3px 3px 0;
}

.nav-item-icon {
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
  filter: none;
}

.nav-item-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.nav-item-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-item-sub {
  font-size: 0.7rem;
  color: var(--green-200);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
  font-weight: 400;
}

.sidebar-bottom {
  padding: 12px 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-data-btns {
  display: flex;
  gap: 8px;
}

.sidebar-data-btns .btn {
  flex: 1;
  font-size: var(--font-size-xs);
  color: var(--green-200);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  white-space: nowrap;
}

.sidebar-data-btns .btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--white);
}

/* ── Main Wrapper ─────────────────────────────────────────── */
#main-wrapper {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
  transition: margin-left var(--transition);
}

/* ── Top Bar ──────────────────────────────────────────────── */
#top-bar {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.top-bar-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
}

.top-bar-breadcrumb {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  margin-top: 2px;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Header DateTime widget ─────────────────────────────── */
.header-datetime {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.25;
  gap: 1px;
}

.header-date {
  font-size: 0.72rem;
  color: var(--gray-500);
  font-weight: 500;
  white-space: nowrap;
}

.header-time {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--gray-800);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* ── Header Weather widget ──────────────────────────────── */
.header-weather {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border-radius: var(--radius-md);
  background: var(--green-50);
  border: 1px solid var(--green-200);
  cursor: default;
  transition: background var(--transition-fast);
}
.header-weather:hover { background: var(--green-100); }

.weather-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.weather-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.weather-temp {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1;
  white-space: nowrap;
}

.weather-desc {
  font-size: 0.68rem;
  color: var(--gray-500);
  font-weight: 500;
  white-space: nowrap;
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.weather-extra {
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-size: 0.68rem;
  color: var(--gray-500);
  font-weight: 500;
  white-space: nowrap;
}

.weather-extra span {
  display: block;
}

.top-bar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--green-700);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  cursor: pointer;
}

.mobile-menu-btn {
  display: none;
}

/* ── Main Content ─────────────────────────────────────────── */
#main-content {
  flex: 1;
  padding: 24px;
  max-width: var(--content-max);
  width: 100%;
}

/* ── Sidebar Toggle (Mobile) ─────────────────────────────── */
.sidebar-toggle-btn {
  display: none;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 190;
  opacity: 0;
  transition: opacity var(--transition);
}

.sidebar-backdrop.show {
  opacity: 1;
}

/* ── Loading Spinner ─────────────────────────────────────── */
.loading-spinner-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--green-200);
  border-top-color: var(--green-700);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.25s ease forwards;
}

/* ── Utility Classes ─────────────────────────────────────── */

/* Display */
.hidden  { display: none !important; }
.visible { display: block; }
.flex    { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1; }
.shrink-0 { flex-shrink: 0; }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Gap */
.gap-1  { gap: 4px; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.gap-5  { gap: 20px; }
.gap-6  { gap: 24px; }

/* Padding */
.p-0  { padding: 0; }
.p-2  { padding: 8px; }
.p-3  { padding: 12px; }
.p-4  { padding: 16px; }
.p-5  { padding: 20px; }
.p-6  { padding: 24px; }
.px-2 { padding-left: 8px; padding-right: 8px; }
.px-3 { padding-left: 12px; padding-right: 12px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }
.py-4 { padding-top: 16px; padding-bottom: 16px; }

/* Margin */
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 20px; }
.mb-6 { margin-bottom: 24px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mr-2 { margin-right: 8px; }
.ml-auto { margin-left: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Width */
.w-full  { width: 100%; }
.w-auto  { width: auto; }
.min-w-0 { min-width: 0; }

/* Typography */
.text-xs   { font-size: var(--font-size-xs); }
.text-sm   { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-md   { font-size: var(--font-size-md); }
.text-lg   { font-size: var(--font-size-lg); }
.text-xl   { font-size: var(--font-size-xl); }
.text-2xl  { font-size: var(--font-size-2xl); }
.text-3xl  { font-size: var(--font-size-3xl); }

.font-normal   { font-weight: 400; }
.font-medium   { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }
.font-extrabold{ font-weight: 800; }

.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leading-tight  { line-height: 1.25; }
.leading-snug   { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-loose  { line-height: 1.75; }

.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.tracking-wide { letter-spacing: 0.05em; }

/* Colors */
.text-white   { color: var(--white); }
.text-green   { color: var(--green-700); }
.text-green-800 { color: var(--green-800); }
.text-muted   { color: var(--gray-500); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info    { color: var(--info); }
.text-purple  { color: var(--purple); }
.text-gray    { color: var(--gray-600); }
.text-dark    { color: var(--gray-900); }

/* Backgrounds */
.bg-white    { background-color: var(--white); }
.bg-surface  { background-color: var(--gray-50); }
.bg-green-50 { background-color: var(--green-50); }
.bg-green-100{ background-color: var(--green-100); }
.bg-green-800{ background-color: var(--green-800); }
.bg-gray-100 { background-color: var(--gray-100); }

/* Border Radius */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded    { border-radius: var(--radius-md); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow    { box-shadow: var(--shadow-md); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Borders */
.border         { border: 1px solid var(--gray-200); }
.border-green   { border-color: var(--green-200); }
.border-t       { border-top: 1px solid var(--gray-200); }
.border-b       { border-bottom: 1px solid var(--gray-200); }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto   { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.sticky   { position: sticky; top: 0; }

/* Cursor */
.cursor-pointer { cursor: pointer; }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* ── Avatar ──────────────────────────────────────────────── */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--green-100);
  color: var(--green-800);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  flex-shrink: 0;
}

.avatar-sm { width: 28px; height: 28px; font-size: 0.65rem; }
.avatar-lg { width: 48px; height: 48px; font-size: var(--font-size-base); }
.avatar-xl { width: 64px; height: 64px; font-size: var(--font-size-lg); }

/* ── Divider ─────────────────────────────────────────────── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--gray-200);
  margin: 16px 0;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --sidebar-width: 240px; }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .weather-extra { display: none; }
  .weather-desc  { display: none; }
}

@media (max-width: 768px) {
  #sidebar {
    transform: translateX(-100%);
    z-index: 300;
  }

  #sidebar.open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    pointer-events: none;
  }

  .sidebar-backdrop.show {
    pointer-events: auto;
  }

  #main-wrapper {
    margin-left: 0;
  }

  #top-bar {
    padding: 0 16px;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .header-datetime,
  .header-weather {
    display: none;
  }

  #main-content {
    padding: 16px;
  }

  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-2 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  #main-content { padding: 12px; }
  .grid-cols-3,
  .grid-cols-4 { grid-template-columns: 1fr; }
}