/**
 * Auth CSS - Login Page Styles (v2 Premium)
 * Theme: High-Tech Mission Control
 * FleetHubs IoT Enterprise Platform
 */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Syne:wght@700;800&display=swap');

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

:root {
  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.35);
  --accent-bright: #60a5fa;
  --surface: rgba(8, 14, 28, 0.85);
  --surface-raised: rgba(15, 23, 42, 0.9);
  --border: rgba(255, 255, 255, 0.07);
  --border-focus: rgba(37, 99, 235, 0.6);
  --text-primary: #f0f6ff;
  --text-secondary: #7d95b5;
  --text-muted: #3d5270;
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.2);
  --success: #10b981;
  --radius: 14px;
  --font-body: 'Space Grotesk', sans-serif;
  --font-display: 'Syne', sans-serif;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font-body);
  background: #030712;
  color: var(--text-primary);
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
}

/* ===== Background System ===== */

/* Deep space base */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(14, 36, 89, 0.7) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 80%, rgba(88, 28, 135, 0.25) 0%, transparent 60%),
    #030712;
}

/* Animated orbs */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  animation: drift var(--dur, 25s) ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

.bg-orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle at 40% 40%, rgba(37, 99, 235, 0.22), transparent 65%);
  top: -250px; left: -180px;
  --dur: 22s;
}
.bg-orb-2 {
  width: 550px; height: 550px;
  background: radial-gradient(circle at 60% 60%, rgba(124, 58, 237, 0.18), transparent 65%);
  bottom: -200px; right: -150px;
  --dur: 28s;
  animation-delay: -8s;
}
.bg-orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.12), transparent 65%);
  top: 40%; left: 55%;
  --dur: 18s;
  animation-delay: -14s;
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, -40px) scale(1.05); }
}

/* Fine grid overlay */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}

/* Horizontal scan line animation */
.bg-scanline {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(37,99,235,0.4), transparent);
  z-index: 2;
  animation: scan 8s linear infinite;
  pointer-events: none;
}

@keyframes scan {
  0%   { top: -2px; opacity: 0; }
  5%   { opacity: 1; }
  95%  { opacity: 0.3; }
  100% { top: 100vh; opacity: 0; }
}

/* ===== Login Card ===== */
.login-card {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 430px;
  margin: 1rem;
  padding: 2.5rem 2.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04) inset,
    0 32px 64px -16px rgba(0,0,0,0.7),
    0 0 80px -20px var(--accent-glow);
  animation: cardIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Top accent line */
.login-card::before {
  content: '';
  position: absolute;
  top: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), rgba(96,165,250,0.6), transparent);
  border-radius: 1px;
}

/* Corner decoration */
.login-card::after {
  content: '';
  position: absolute;
  top: -1px; right: -1px;
  width: 48px; height: 48px;
  background: transparent;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  border-radius: 0 20px 0 0;
  opacity: 0.5;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ===== Logo Section ===== */
.logo-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.5s ease 0.1s both;
}

.logo-icon-wrap {
  position: relative;
  width: 64px; height: 64px;
  margin-bottom: 1rem;
}

.logo-icon-wrap img {
  width: 64px; height: 64px;
  object-fit: contain;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 0 12px var(--accent-glow));
}

.logo-pulse {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px solid var(--accent-glow);
  animation: logoPulse 2.5s ease-in-out infinite;
}
.logo-pulse:nth-child(2) { inset: -16px; animation-delay: 0.5s; }

@keyframes logoPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50%       { opacity: 0; transform: scale(1.15); }
}

.logo-wrapper h1 {
  /* font-family: var(--font-display); */
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.logo-wrapper p {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ===== Section Label ===== */
.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  animation: fadeUp 0.5s ease 0.2s both;
}

.section-label::before,
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-label span {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ===== Modern Input Group ===== */
.input-group-modern {
  position: relative;
  margin-bottom: 1rem;
  animation: fadeUp 0.5s ease var(--delay, 0.25s) both;
}

.input-group-modern:nth-child(2) { --delay: 0.3s; }
.input-group-modern:nth-child(3) { --delay: 0.35s; }

.input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: color 0.2s ease;
  font-variation-settings: 'FILL' 0, 'wght' 300;
  z-index: 2;
}

.input-group-modern:focus-within .input-icon {
  color: var(--accent-bright);
}

.input-group-modern input {
  width: 100%;
  padding: 0.9rem 1rem 0.9rem 2.9rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 400;
  outline: none;
  transition: all 0.25s ease;
  caret-color: var(--accent-bright);
}

.input-group-modern input::placeholder {
  color: var(--text-muted);
}

.input-group-modern input:focus {
  background: rgba(37,99,235,0.06);
  border-color: var(--border-focus);
  box-shadow:
    0 0 0 3px rgba(37,99,235,0.12),
    0 1px 3px rgba(0,0,0,0.3) inset;
}

.input-group-modern input:focus::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
}

/* Validation error */
.input-group-modern .text-danger {
  display: block;
  font-size: 0.75rem;
  color: var(--danger);
  margin-top: 0.4rem;
  padding-left: 0.25rem;
}

/* ===== Validation Summary ===== */
.validation-error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.82rem;
  color: #fca5a5;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.validation-error::before {
  content: '⚠';
  flex-shrink: 0;
  margin-top: 1px;
}

/* ===== Remember Row ===== */
.remember-row {
  margin: 1.25rem 0 1.75rem;
  animation: fadeUp 0.5s ease 0.4s both;
}

.remember-row label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  width: fit-content;
  user-select: none;
}

.remember-row input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: all 0.2s ease;
}

.remember-row input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.remember-row input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  top: 2px; left: 5px;
  width: 4px; height: 8px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

/* ===== Login Button ===== */
.btn-login {
  position: relative;
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #3b82f6 100%);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 4px 20px -4px var(--accent-glow);
  animation: fadeUp 0.5s ease 0.45s both;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px -4px var(--accent-glow), 0 0 0 1px rgba(96,165,250,0.3);
}

.btn-login:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px -2px var(--accent-glow);
}

/* Shine sweep on hover */
.btn-shine {
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  transform: skewX(-20deg);
  transition: left 0.5s ease;
  pointer-events: none;
}

.btn-login:hover .btn-shine {
  left: 150%;
}

/* Ripple on click */
.btn-login::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  border-radius: inherit;
  transition: background 0.15s ease;
}
.btn-login:active::after { background: rgba(255,255,255,0.06); }

/* ===== Demo Badge ===== */
.demo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  padding: 0.6rem 1rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--text-muted);
  animation: fadeUp 0.5s ease 0.5s both;
}

.demo-badge strong {
  color: var(--text-secondary);
  background: rgba(255,255,255,0.06);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

/* ===== Status Indicator (top-right corner of card) ===== */
.status-dot {
  position: absolute;
  top: 1.25rem; right: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--success);
}

.status-dot::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ===== Footer ===== */
.login-footer {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  text-align: center;
}

.login-footer p {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .login-card {
    padding: 2rem 1.75rem;
    border-radius: 16px;
  }
  .logo-wrapper h1 { font-size: 1.5rem; }
  .bg-orb-1 { width: 400px; height: 400px; }
  .bg-orb-2 { width: 300px; height: 300px; }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
  .bg-orb, .logo-pulse, .bg-scanline,
  .login-card, .btn-login,
  .input-group-modern, .logo-wrapper,
  .section-label, .remember-row, .demo-badge {
    animation: none !important;
    transition: none !important;
  }
}

@media (prefers-contrast: high) {
  .input-group-modern input {
    border-color: rgba(255,255,255,0.3);
  }
  .login-card {
    border-color: rgba(255,255,255,0.2);
  }
}