/* ═══════════════════════════════════════════════
   SoilSense v2 – Enhanced UI/UX
   Theme: Deep forest dark, earthy + technical
════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg:           #080f0b;
  --bg2:          #0e1712;
  --bg3:          #121e16;
  --card:         #141f18;
  --card-hover:   #18261c;
  --border:       #1e2e24;
  --border-hover: #2a3e30;
  --border-focus: #22d86e40;

  --accent:       #22d86e;
  --accent-glow:  #22d86e30;
  --accent-dim:   #0d5c2e;
  --accent-soft:  #16a350;
  --amber:        #f59e0b;
  --amber-glow:   #f59e0b20;
  --danger:       #ef4444;
  --danger-glow:  #ef444420;
  --blue:         #3b82f6;
  --blue-glow:    #3b82f620;
  --purple:       #a78bfa;
  --cyan:         #06b6d4;

  --text:         #e8f2ec;
  --text-secondary: #6b9478;
  --text-muted:   #334d3c;
  --text-dim:     #1e3328;

  --font-body:    'Outfit', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --sidebar-w:    264px;
  --topbar-h:     58px;
  --radius:       16px;
  --radius-sm:    10px;
  --radius-xs:    6px;

  --shadow-sm:    0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
  --shadow-md:    0 4px 16px rgba(0,0,0,.5), 0 2px 6px rgba(0,0,0,.3);
  --shadow-lg:    0 12px 40px rgba(0,0,0,.6), 0 4px 12px rgba(0,0,0,.4);
  --shadow-glow:  0 0 20px var(--accent-glow);

  --transition:   all .2s cubic-bezier(.4,0,.2,1);
  --transition-slow: all .4s cubic-bezier(.4,0,.2,1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  line-height: 1.55;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: .4;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { opacity: .85; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ── Sidebar ─────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0;
  z-index: 200;
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  overflow: hidden;
}

/* Sidebar ambient glow */
.sidebar::before {
  content: '';
  position: absolute;
  top: -80px;
  left: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: ambient-shift 8s ease-in-out infinite alternate;
}

@keyframes ambient-shift {
  0%   { transform: translate(0,0) scale(1); opacity: .6; }
  100% { transform: translate(30px,40px) scale(1.2); opacity: 1; }
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 22px 20px 16px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.logo-mark {
  font-size: 28px;
  filter: drop-shadow(0 0 8px rgba(34,216,110,.4));
  animation: logo-pulse 3s ease-in-out infinite;
}

@keyframes logo-pulse {
  0%,100% { filter: drop-shadow(0 0 6px rgba(34,216,110,.3)); }
  50%      { filter: drop-shadow(0 0 14px rgba(34,216,110,.7)); }
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -.4px;
  background: linear-gradient(135deg, var(--accent) 0%, #5fffaa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-section-label {
  font-size: 9.5px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 18px 20px 5px;
  position: relative;
}

.sidebar-section-label::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20px;
  right: 20px;
  height: 1px;
  background: linear-gradient(90deg, var(--border) 0%, transparent 100%);
}

.sidebar-menu {
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 400;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.menu-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .2s;
  border-radius: var(--radius-sm);
}

.menu-item:hover {
  background: var(--card);
  color: var(--text);
  transform: translateX(2px);
}

.menu-item:hover::before { opacity: 1; }

.menu-item.active {
  background: linear-gradient(135deg, rgba(34,216,110,.12) 0%, rgba(34,216,110,.05) 100%);
  color: var(--accent);
  font-weight: 500;
  box-shadow: inset 2px 0 0 var(--accent), var(--shadow-sm);
}

.menu-item.active::before { opacity: .5; }

.menu-item i {
  width: 16px;
  text-align: center;
  font-size: 13px;
  opacity: .7;
  transition: var(--transition);
}

.menu-item:hover i,
.menu-item.active i {
  opacity: 1;
  transform: scale(1.1);
}

.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 9.5px;
  font-family: var(--font-mono);
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
  box-shadow: 0 0 8px var(--danger-glow);
  animation: badge-pop .3s cubic-bezier(.34,1.56,.64,1) forwards;
}

@keyframes badge-pop {
  from { transform: scale(0); }
  to   { transform: scale(1); }
}

.sidebar-footer {
  margin-top: auto;
  padding: 12px 10px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(0deg, rgba(34,216,110,.03) 0%, transparent 100%);
}

.user-chip { display: flex; align-items: center; gap: 9px; flex: 1; overflow: hidden; }

.user-initials {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dim) 0%, #0a4020 100%);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--accent-dim);
  box-shadow: 0 0 10px rgba(34,216,110,.15);
  transition: var(--transition);
}

.user-initials:hover { box-shadow: 0 0 16px rgba(34,216,110,.35); transform: scale(1.05); }

.user-info { overflow: hidden; }
.user-name { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); }
.user-platform { font-size: 10px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-family: var(--font-mono); }

.logout-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 7px 9px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  font-size: 13px;
}

.logout-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: var(--danger-glow);
  transform: scale(1.05);
}

/* ── Main Layout ─────────────────────────── */
.main-wrap {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Background grid pattern */
.main-wrap::before {
  content: '';
  position: fixed;
  inset: 0;
  left: var(--sidebar-w);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .25;
  pointer-events: none;
  z-index: 0;
}

/* ── Topbar ──────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: rgba(14,23,18,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.hamburger {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 15px;
  cursor: pointer;
  display: none;
  padding: 7px 9px;
  border-radius: var(--radius-xs);
  transition: var(--transition);
}

.hamburger:hover { border-color: var(--accent); color: var(--accent); }

.topbar-right { display: flex; align-items: center; gap: 14px; }

.platform-badge {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 12px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(34,216,110,.1) 0%, rgba(34,216,110,.05) 100%);
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  letter-spacing: .3px;
  transition: var(--transition);
}

.platform-badge:hover { background: rgba(34,216,110,.15); box-shadow: 0 0 12px var(--accent-glow); }

.live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--bg2), 0 0 8px var(--accent);
  animation: pulse-ring 2s cubic-bezier(.4,0,.6,1) infinite;
  position: relative;
}

.live-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  animation: ring-expand 2s cubic-bezier(.4,0,.6,1) infinite;
}

@keyframes pulse-ring {
  0%,100% { box-shadow: 0 0 0 2px var(--bg2), 0 0 6px var(--accent); }
  50%      { box-shadow: 0 0 0 2px var(--bg2), 0 0 14px var(--accent); }
}

@keyframes ring-expand {
  0%   { transform: scale(.8); opacity: .6; }
  100% { transform: scale(1.6); opacity: 0; }
}

.live-clock {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg3);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  letter-spacing: .5px;
}

/* ── Page content ────────────────────────── */
.page-content {
  padding: 24px;
  flex: 1;
  position: relative;
  z-index: 1;
}

/* ── Page header ─────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 14px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.3px;
  line-height: 1.2;
}

.page-title span {
  background: linear-gradient(135deg, var(--accent) 0%, #7fffd4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
  font-family: var(--font-mono);
  letter-spacing: .2px;
}

/* ── Cards ───────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent-glow) 50%, transparent 100%);
  opacity: 0;
  transition: opacity .3s;
}

.card:hover { border-color: var(--border-hover); }
.card:hover::before { opacity: 1; }

/* ── Buttons ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.1) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .2s;
}

.btn:hover::after { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  color: #071a0e;
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(34,216,110,.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2ef07a 0%, var(--accent) 100%);
  color: #071a0e;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(34,216,110,.4);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-1px);
}

.btn-google {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  justify-content: center;
}

.btn-google:hover {
  border-color: #4285F4;
  color: #6fa8f5;
  background: rgba(59,130,246,.07);
}

.btn-full { width: 100%; justify-content: center; }

/* Loading state */
.btn-loading { pointer-events: none; opacity: .7; }
.btn-loading i { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Forms ───────────────────────────────── */
.form-input {
  width: 100%;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: var(--transition);
  line-height: 1.5;
}

.form-input:focus {
  border-color: var(--accent);
  background: rgba(34,216,110,.04);
  box-shadow: 0 0 0 3px var(--accent-glow), var(--shadow-sm);
}

.form-input:hover:not(:focus) { border-color: var(--border-hover); }
.form-input::placeholder { color: var(--text-dim); }
select.form-input { cursor: pointer; }
textarea.form-input { resize: vertical; min-height: 90px; }

.field-group { margin-bottom: 14px; }
.field-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-label {
  display: block;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: .5px;
  text-transform: uppercase;
}

.otp-input {
  text-align: center;
  letter-spacing: 18px;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  padding: 16px;
  background: rgba(34,216,110,.04);
  border-color: var(--accent-dim);
  color: var(--accent);
}

.otp-input:focus { letter-spacing: 18px; }

/* ── Toast / messages ────────────────────── */
.toast-stack {
  padding: 0 24px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.toast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  gap: 12px;
  animation: toast-slide-in .3s cubic-bezier(.34,1.56,.64,1) forwards;
  backdrop-filter: blur(8px);
}

@keyframes toast-slide-in {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

.toast-success {
  background: linear-gradient(135deg, rgba(34,216,110,.12) 0%, rgba(34,216,110,.06) 100%);
  border: 1px solid rgba(34,216,110,.25);
  color: #5fffa0;
}

.toast-error {
  background: linear-gradient(135deg, rgba(239,68,68,.12) 0%, rgba(239,68,68,.06) 100%);
  border: 1px solid rgba(239,68,68,.3);
  color: #ff8080;
}

.toast-warning {
  background: linear-gradient(135deg, rgba(245,158,11,.12) 0%, rgba(245,158,11,.06) 100%);
  border: 1px solid rgba(245,158,11,.3);
  color: #ffc040;
}

.toast-info {
  background: linear-gradient(135deg, rgba(59,130,246,.12) 0%, rgba(59,130,246,.06) 100%);
  border: 1px solid rgba(59,130,246,.3);
  color: #80b3ff;
}

.toast button {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 18px;
  opacity: .5;
  line-height: 1;
  padding: 0 2px;
  transition: var(--transition);
  flex-shrink: 0;
}

.toast button:hover { opacity: 1; transform: scale(1.2); }

/* ── Auth pages ──────────────────────────── */
.auth-scene {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

/* Animated background grid */
.auth-scene::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34,216,110,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,216,110,.04) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
  from { transform: translate(0,0); }
  to   { transform: translate(40px,40px); }
}

.auth-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
  animation: orb-float 8s ease-in-out infinite alternate;
}

@keyframes orb-float {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(20px,30px) scale(1.1); }
}

.auth-orb-1 {
  width: 450px; height: 450px;
  background: radial-gradient(circle, rgba(34,216,110,.08) 0%, transparent 70%);
  top: -120px; left: -120px;
  animation-delay: 0s;
}

.auth-orb-2 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(59,130,246,.06) 0%, transparent 70%);
  bottom: -80px; right: -80px;
  animation-delay: -4s;
  animation-direction: alternate-reverse;
}

.auth-box {
  background: rgba(14,23,18,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 42px;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  box-shadow:
    0 24px 80px rgba(0,0,0,.6),
    0 0 0 1px rgba(34,216,110,.05),
    inset 0 1px 0 rgba(255,255,255,.04);
  animation: box-appear .5s cubic-bezier(.34,1.2,.64,1) forwards;
}

@keyframes box-appear {
  from { transform: translateY(24px) scale(.97); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.auth-box-wide { max-width: 580px; }

/* Top shimmer on auth box */
.auth-box::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34,216,110,.5), transparent);
}

.auth-brand { text-align: center; margin-bottom: 30px; }

.auth-brand-icon {
  font-size: 48px;
  display: block;
  margin-bottom: 10px;
  filter: drop-shadow(0 0 16px rgba(34,216,110,.5));
  animation: icon-breathe 3s ease-in-out infinite;
}

@keyframes icon-breathe {
  0%,100% { transform: scale(1); filter: drop-shadow(0 0 12px rgba(34,216,110,.4)); }
  50%      { transform: scale(1.06); filter: drop-shadow(0 0 22px rgba(34,216,110,.7)); }
}

.auth-brand-name {
  font-family: var(--font-mono);
  font-size: 24px;
  background: linear-gradient(135deg, var(--accent) 0%, #7fffd4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.3px;
}

.auth-brand-tag { font-size: 12px; color: var(--text-muted); margin-top: 5px; letter-spacing: .3px; }

.auth-heading  { font-size: 20px; font-weight: 700; margin-bottom: 5px; color: var(--text); }
.auth-sub      { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }

.auth-sep {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: .5px;
  text-transform: uppercase;
}

.auth-sep::before, .auth-sep::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.auth-footer-text {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 20px;
}

.auth-footer-text a { font-weight: 500; }

/* ── Register specific ────────────────────── */
.section-divider {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  padding: 16px 0 10px;
  border-top: 1px solid var(--border);
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.optional-tag {
  font-size: 9.5px;
  color: var(--text-dim);
  text-transform: none;
  letter-spacing: 0;
  background: var(--bg3);
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.platform-fields {
  padding: 16px;
  background: linear-gradient(135deg, rgba(34,216,110,.04) 0%, transparent 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  animation: field-reveal .25s ease forwards;
}

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

.platform-guide {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.7;
  padding: 10px 12px;
  background: rgba(255,255,255,.02);
  border-radius: var(--radius-xs);
  border-left: 2px solid var(--accent-dim);
}

.platform-guide code {
  background: rgba(255,255,255,.07);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}

/* ── Settings ────────────────────────────── */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.settings-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.settings-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent), var(--accent-dim));
  opacity: 0;
  transition: opacity .3s;
}

.settings-card:hover { border-color: var(--border-hover); }
.settings-card:hover::after { opacity: 1; }

.settings-card-header {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.settings-card-header i {
  color: var(--accent);
  font-size: 15px;
  width: 28px;
  height: 28px;
  background: var(--accent-glow);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-box {
  background: linear-gradient(135deg, rgba(34,216,110,.05) 0%, transparent 100%);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.info-box code {
  background: rgba(255,255,255,.07);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}

/* ── Data table ──────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 10.5px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  white-space: nowrap;
  background: rgba(255,255,255,.01);
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(30,46,36,.6);
  color: var(--text-secondary);
  transition: background .15s;
}

.data-table tr { transition: var(--transition); }

.data-table tbody tr:hover td {
  background: rgba(34,216,110,.04);
  color: var(--text);
}

.data-table tr:last-child td { border-bottom: none; }
.mono { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-muted); }

/* Source tags */
.source-tag {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 3px 9px;
  border-radius: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
  display: inline-block;
}

.source-blynk      { background: rgba(34,216,110,.15); color: var(--accent); border: 1px solid rgba(34,216,110,.2); }
.source-thingspeak { background: rgba(59,130,246,.15);  color: var(--blue);   border: 1px solid rgba(59,130,246,.2); }
.source-adafruit   { background: rgba(245,158,11,.15);  color: var(--amber);  border: 1px solid rgba(245,158,11,.2); }
.source-ubidots    { background: rgba(167,139,250,.15); color: var(--purple); border: 1px solid rgba(167,139,250,.2); }
.source-csv        { background: rgba(107,114,128,.12); color: #9ca3af;       border: 1px solid rgba(107,114,128,.2); }
.source-manual     { background: rgba(107,114,128,.12); color: #9ca3af;       border: 1px solid rgba(107,114,128,.2); }

/* ── Upload zone ─────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: rgba(255,255,255,.01);
  position: relative;
  overflow: hidden;
}

.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity .3s;
}

.upload-zone:hover {
  border-color: var(--accent);
  background: rgba(34,216,110,.03);
}

.upload-zone:hover::before { opacity: 1; }

.upload-zone.drag-over {
  border-color: var(--accent);
  background: rgba(34,216,110,.06);
  transform: scale(1.01);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.export-preview {
  background: rgba(255,255,255,.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.export-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}

.export-row:hover { background: rgba(255,255,255,.02); }
.export-row:last-child { border: none; }
.export-row span:first-child { color: var(--text-muted); font-family: var(--font-mono); font-size: 11px; }
.export-row span:last-child  { color: var(--text-secondary); font-size: 11px; }

/* ── Animations ──────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideRight {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}

.page-content > * {
  animation: fadeUp .4s cubic-bezier(.4,0,.2,1) forwards;
  opacity: 0;
}

.page-content > *:nth-child(1) { animation-delay: .05s; }
.page-content > *:nth-child(2) { animation-delay: .10s; }
.page-content > *:nth-child(3) { animation-delay: .15s; }
.page-content > *:nth-child(4) { animation-delay: .20s; }
.page-content > *:nth-child(5) { animation-delay: .25s; }

/* ── Responsive ──────────────────────────── */
@media (max-width: 1100px) {
  .settings-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    width: 264px;
    transform: translateX(-100%);
    box-shadow: none;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 40px rgba(0,0,0,.6);
  }

  .main-wrap { margin-left: 0; }
  .main-wrap::before { left: 0; }
  .hamburger { display: flex; }

  .topbar { padding: 0 16px; }
  .page-content { padding: 16px; }

  .platform-badge { display: none; }

  /* Overlay when sidebar open */
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    z-index: 199;
    backdrop-filter: blur(2px);
    animation: fadeIn .2s ease;
  }
}

@media (max-width: 640px) {
  .field-row { grid-template-columns: 1fr; }
  .auth-box  { padding: 28px 20px; border-radius: 16px; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .page-header > div:last-child { width: 100%; }
  .page-header .btn { width: 100%; justify-content: center; }
  .auth-box-wide { max-width: 100%; }
}

@media (max-width: 400px) {
  .live-clock { display: none; }
  .topbar-right { gap: 8px; }
}

/* ── Print ───────────────────────────────── */
@media print {
  .sidebar, .topbar, .hamburger { display: none !important; }
  .main-wrap { margin-left: 0 !important; }
  .page-content { padding: 0 !important; }
  body { background: white; color: black; }
  .card { border: 1px solid #ccc; }
}

/* ── Utility classes ─────────────────────── */
.text-accent  { color: var(--accent); }
.text-muted   { color: var(--text-muted); }
.text-danger  { color: var(--danger); }
.text-amber   { color: var(--amber); }
.text-blue    { color: var(--blue); }
.font-mono    { font-family: var(--font-mono); }
.truncate     { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}