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

:root {
  --bg:            #0F0F0F;
  --surface:       #141414;
  --surface2:      #1C1C1C;
  --border:        #2A2A2A;
  --border2:       #333333;
  --primary:       #1FA463;
  --primary-hover: #178A52;
  --primary-dim:   rgba(31,164,99,0.12);
  --red:           #EF4444;
  --red-dim:       rgba(239,68,68,0.12);
  --text:          #FFFFFF;
  --text2:         #A0A0A0;
  --text3:         #6B6B6B;
  --radius:        12px;
  --shadow:        0 4px 32px rgba(0,0,0,0.55);
  --transition:    all 0.2s ease;
  --glow-primary:  0 0 0 3px rgba(31,164,99,0.20);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

/* Subtle background pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(31,164,99,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(106,44,145,0.05) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.login-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
}

/* ── Card ─────────────────────────────────────────────────────── */
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 36px;
  box-shadow: var(--shadow);
}

/* ── Logo area ───────────────────────────────────────────────── */
.logo-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.logo-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-dim);
  border: 1px solid rgba(31,164,99,0.25);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg { color: var(--primary); }

.logo-title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}

.logo-sub {
  font-size: 12px;
  color: var(--text3);
  font-weight: 400;
  margin-top: -4px;
}

/* ── Form heading ────────────────────────────────────────────── */
.form-heading {
  text-align: center;
  margin-bottom: 28px;
}
.form-heading h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.form-heading p {
  font-size: 13px;
  color: var(--text2);
  margin-top: 4px;
}

/* ── Form fields ─────────────────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.input-wrap {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text3);
  pointer-events: none;
  display: flex;
  align-items: center;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  padding: 11px 12px 11px 38px;
  outline: none;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--primary);
  box-shadow: var(--glow-primary);
}

input::placeholder { color: var(--text3); }

/* Toggle password visibility */
.toggle-pass {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}
.toggle-pass:hover { color: var(--text2); }

/* ── Error box ───────────────────────────────────────────────── */
.error-box {
  background: var(--red-dim);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--red);
  margin-bottom: 16px;
  display: none;
  align-items: center;
  gap: 8px;
}
.error-box.visible { display: flex; }

/* ── Submit button ───────────────────────────────────────────── */
.btn-login {
  width: 100%;
  background: var(--primary);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 13px;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0.2px;
}

.btn-login:hover:not(:disabled) { background: var(--primary-hover); transform: translateY(-1px); }
.btn-login:active:not(:disabled) { transform: translateY(0); }
.btn-login:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

/* Loading spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
.btn-login.loading .spinner { display: block; }
.btn-login.loading .btn-text { opacity: 0.7; }

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

/* ── Footer note ─────────────────────────────────────────────── */
.card-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 11px;
  color: var(--text3);
  line-height: 1.6;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 480px) {
  .login-card { padding: 28px 20px; border-radius: 16px; }
}