:root {
  --brand-green: #40916c;
  --brand-green-dark: #2d6a4f;
  --panel-top: #1b4332;
  --panel-bottom: #12372a;
  --ink: #12372a;
  --text: #1f2d3d;
  --muted: #5b6b7b;
  --line: #cfd7de;
  --danger: #b42335;
  --success: #1f6b43;
  --warning: #8a5a00;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }

html, body.login-body {
  min-height: 100%;
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

.login-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.showcase {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  background: linear-gradient(180deg, var(--panel-top), var(--panel-bottom));
}

.waves {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 42%;
  pointer-events: none;
}
.waves path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.16);
  stroke-width: 3;
  vector-effect: non-scaling-stroke;
}

.brand-logo {
  position: relative;
  display: block;
  width: min(420px, 82%);
  height: auto;
  margin-top: -4vh;
}

.form-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2.5rem 1.5rem;
  background: #fff;
}

.login-card {
  width: 100%;
  max-width: 380px;
  margin: auto 0;
  animation: card-in 0.5s cubic-bezier(0.2, 0, 0, 1) both;
}
@keyframes card-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.login-card.shake { animation: shake 0.4s ease; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.form-header { margin-bottom: 1.75rem; }
.form-title { font-size: 2rem; font-weight: 700; line-height: 1.15; color: var(--ink); }
.form-sub { margin-top: 0.5rem; font-size: 0.88rem; line-height: 1.55; color: var(--muted); }

.login-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  line-height: 1.45;
  border-radius: 8px;
  color: var(--danger);
  background: rgba(180, 35, 53, 0.07);
  border: 1px solid rgba(180, 35, 53, 0.25);
}
.login-alert i { margin-top: 0.15rem; }
.login-alert.success { color: var(--success); background: rgba(31, 107, 67, 0.08); border-color: rgba(31, 107, 67, 0.25); }
.login-alert.info { color: var(--ink); background: rgba(18, 55, 42, 0.05); border-color: var(--line); }

.field { margin-bottom: 1.2rem; }
.field label { display: block; margin-bottom: 0.45rem; font-size: 0.8rem; font-weight: 500; color: var(--text); }
.input-wrap { position: relative; }

.input-wrap input {
  width: 100%;
  height: 48px;
  padding: 0 1rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.input-wrap input#password { padding-right: 4.5rem; }
.input-wrap input::placeholder { color: #8a97a4; }
.input-wrap input:hover { border-color: #8a97a4; }
.input-wrap input:focus { outline: none; border-color: var(--brand-green); box-shadow: 0 0 0 3px rgba(64, 145, 108, 0.28); }
.input-wrap input.invalid { border-color: var(--danger); box-shadow: 0 0 0 3px rgba(180, 35, 53, 0.1); }

.field-hint, .field-error, .caps-warning { display: block; margin-top: 0.4rem; font-size: 0.72rem; line-height: 1.4; }
.field-hint { color: var(--muted); }
.field-error { color: var(--danger); }
.field-error:empty { display: none; }
.caps-warning { color: var(--warning); }

.toggle-btn {
  position: absolute;
  top: 50%;
  right: 0.5rem;
  transform: translateY(-50%);
  padding: 0.45rem 0.6rem;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--brand-green-dark);
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}
.toggle-btn:hover { background: #eef8f1; }
.toggle-btn:focus-visible,
.login-options a:focus-visible,
.remember input:focus-visible { outline: 2px solid var(--brand-green); outline-offset: 2px; }

.login-options { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; margin-bottom: 1.4rem; font-size: 0.78rem; }
.remember { display: flex; align-items: center; gap: 0.5rem; color: var(--text); cursor: pointer; user-select: none; }
.remember input { width: 16px; height: 16px; accent-color: var(--brand-green); cursor: pointer; }
.login-options a { color: var(--brand-green-dark); font-weight: 600; text-decoration: none; white-space: nowrap; }
.login-options a:hover { text-decoration: underline; text-underline-offset: 3px; }

.login-submit {
  width: 100%;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--brand-green);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.login-submit:hover { background: var(--brand-green-dark); }
.login-submit:active { transform: scale(0.99); }
.login-submit:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.login-submit:disabled { background: #a0c9b5; cursor: not-allowed; transform: none; }

.spinner { width: 16px; height: 16px; border: 2px solid rgba(255, 255, 255, 0.35); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.login-footer { margin-top: 1.5rem; font-size: 0.72rem; color: var(--muted); }

@media (max-width: 640px) {
  .login-layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .showcase { padding: 2.5rem 1.5rem; }
  .brand-logo { width: min(260px, 72%); margin-top: 0; }
  .waves { height: 70%; }
  .form-panel { justify-content: flex-start; padding: 2rem 1.5rem 1.5rem; }
  .login-card { margin: 0; }
}

@media (max-width: 400px) {
  .login-options { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

:root { --lg-ease: cubic-bezier(0.22, 0.8, 0.3, 1); }

@keyframes lg-fade     { from { opacity: 0; } to { opacity: 1; } }
@keyframes lg-up       { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes lg-reveal   { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes lg-line-in  { from { opacity: 0; } to { opacity: 1; } }
@keyframes lg-pulse-a  { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes lg-drift-w  {
    from { transform: translate(-2%, 0) scale(1.06, 1); }
    to   { transform: translate(2%, 0) scale(1.06, 1.12); }
}
@keyframes lg-wave-1 {
    from { d: path("M0,80 C120,112 262,102 400,30"); }
    to   { d: path("M0,58 C130,40 250,128 400,48"); }
}
@keyframes lg-wave-2 {
    from { d: path("M0,172 C130,204 272,194 400,112"); }
    to   { d: path("M0,150 C120,128 270,216 400,134"); }
}
@keyframes lg-wave-3 {
    from { d: path("M0,258 C140,290 282,280 400,192"); }
    to   { d: path("M0,236 C150,214 262,300 400,214"); }
}
@keyframes lg-logo-in  { from { opacity: 0; transform: translateY(26px) scale(0.86); } to { opacity: 1; transform: none; } }
@keyframes lg-float    { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes lg-glow {
    0%, 100% { filter: drop-shadow(0 8px 24px rgba(82, 183, 136, 0.16)); }
    50%      { filter: drop-shadow(0 14px 40px rgba(82, 183, 136, 0.45)); }
}
@keyframes lg-breathe {
    0%, 100% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.7; }
    50%      { transform: translate(-50%, -50%) scale(1.12); opacity: 1; }
}
@keyframes lg-orb      { from { transform: translate(0, 0) scale(1); } to { transform: translate(-70px, -50px) scale(1.2); } }
@keyframes lg-bg       { from { background-position: 0% 0%; } to { background-position: 0% 100%; } }
@keyframes lg-alert    { from { opacity: 0; transform: translateY(-8px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes lg-err      { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
@keyframes lg-nudge    { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
@keyframes lg-pop      { 0% { transform: scale(0.7); } 60% { transform: scale(1.2); } 100% { transform: scale(1); } }

.showcase {
    background: linear-gradient(160deg, var(--panel-top) 0%, var(--panel-bottom) 50%, var(--panel-top) 100%);
    background-size: 100% 220%;
    animation: lg-fade 0.8s ease backwards, lg-bg 16s ease-in-out infinite alternate;
}

.showcase::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: min(680px, 130%);
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(82, 183, 136, 0.28), rgba(82, 183, 136, 0) 62%);
    pointer-events: none;
    animation: lg-breathe 6s ease-in-out infinite;
}

.showcase::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -140px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(64, 145, 108, 0.35), rgba(64, 145, 108, 0) 65%);
    pointer-events: none;
    animation: lg-orb 11s ease-in-out infinite alternate;
}

.waves {
    transform-origin: 50% 100%;
    animation:
        lg-reveal 1.8s cubic-bezier(0.65, 0, 0.35, 1) 0.2s backwards,
        lg-drift-w 14s ease-in-out 2s infinite alternate;
}
.waves path:nth-child(1) {
    animation:
        lg-line-in 0.9s ease 0.2s backwards,
        lg-wave-1 9s ease-in-out 1.8s infinite alternate,
        lg-pulse-a 5s ease-in-out 1.8s infinite;
}
.waves path:nth-child(2) {
    animation:
        lg-line-in 0.9s ease 0.45s backwards,
        lg-wave-2 11s ease-in-out 1.8s infinite alternate,
        lg-pulse-a 6.5s ease-in-out 2.4s infinite;
}
.waves path:nth-child(3) {
    animation:
        lg-line-in 0.9s ease 0.7s backwards,
        lg-wave-3 13s ease-in-out 1.8s infinite alternate,
        lg-pulse-a 8s ease-in-out 3s infinite;
}

.brand-logo {
    z-index: 1;
    animation:
        lg-logo-in 1s var(--lg-ease) 0.3s backwards,
        lg-float 6s ease-in-out 1.3s infinite,
        lg-glow 4s ease-in-out 1.3s infinite;
}

.form-panel { animation: lg-fade 0.6s ease backwards; }

.form-header { animation: lg-up 0.6s var(--lg-ease) 0.1s backwards; }
.field       { animation: lg-up 0.6s var(--lg-ease) 0.25s backwards; }
.field + .field { animation-delay: 0.35s; }
.login-options  { animation: lg-up 0.6s var(--lg-ease) 0.45s backwards; }
.login-submit   { animation: lg-up 0.6s var(--lg-ease) 0.55s backwards; }
.login-footer   { animation: lg-fade 0.8s ease 0.9s backwards; }

.field label { transition: color 0.2s ease, transform 0.2s ease; }
.field:focus-within label { color: var(--brand-green-dark); transform: translateX(2px); }
.input-wrap input {
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s var(--lg-ease);
}
.input-wrap input:focus { transform: translateY(-1px); }
.input-wrap input.invalid { animation: lg-nudge 0.35s ease; }

.toggle-btn { transition: background-color 0.2s ease, transform 0.15s ease; }
.toggle-btn:hover { transform: translateY(-50%) scale(1.06); }
.toggle-btn:active { transform: translateY(-50%) scale(0.94); }

.login-alert:not([hidden]) { animation: lg-alert 0.35s var(--lg-ease); }
.login-alert i { animation: lg-pop 0.45s ease 0.1s backwards; }
.field-error:not(:empty) { animation: lg-err 0.25s ease; }
.caps-warning:not([hidden]) { animation: lg-err 0.25s ease; }

.remember input:checked { animation: lg-pop 0.25s ease; }

.login-options a {
    padding-bottom: 2px;
    background: linear-gradient(currentColor, currentColor) left bottom / 0 2px no-repeat;
    transition: background-size 0.3s var(--lg-ease);
}
.login-options a:hover { background-size: 100% 2px; text-decoration: none; }

.login-submit {
    position: relative;
    overflow: hidden;
    transition: background 0.2s ease, transform 0.15s var(--lg-ease), box-shadow 0.25s ease;
}
.login-submit::before {
    content: "";
    position: absolute;
    top: 0;
    left: -60%;
    width: 40%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: skewX(-20deg);
    transition: left 0.7s var(--lg-ease);
    pointer-events: none;
}
.login-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(45, 106, 79, 0.32);
}
.login-submit:hover:not(:disabled)::before { left: 130%; }
.login-submit:active:not(:disabled) { transform: translateY(0) scale(0.98); box-shadow: none; }

@media (max-width: 640px) {
    .showcase::after { width: 260px; height: 260px; right: -90px; bottom: -100px; }
    @keyframes lg-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }
}