@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@400;700&display=swap');

/* Color tokens — must match core/css/base.css */
:root {
  --color-primary:       #5E79A8;
  --color-primary-light: #A5B3CC;
  --color-primary-dark:  #3F5277;
  --color-accent-brown:  #6D4D3E;
  --color-accent-gold:   #C9A86A;
  --color-bg:            #F0EEE9;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Raleway', sans-serif;
  background: var(--color-bg);
}

/* ─── Full-screen container ─────────────────────────────────────────────────── */
.container {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: pointer;
}

/* ─── Animated triangle panels ──────────────────────────────────────────────── */
.top::before,
.top::after,
.bottom::before,
.bottom::after {
  content: '';
  display: block;
  position: absolute;
  width: 200vmax;
  height: 200vmax;
  top: 50%;
  left: 50%;
  margin-top: -100vmax;
  transform-origin: 0 50%;
  transition: all 0.5s cubic-bezier(0.445, 0.05, 0, 1);
  z-index: 10;
  opacity: 0.65;
  transition-delay: 0.2s;
}

.top::before  { transform: rotate(45deg);    background: var(--color-accent-brown); }
.top::after   { transform: rotate(135deg);   background: var(--color-accent-gold);  }
.bottom::before { transform: rotate(-45deg); background: var(--color-primary);      }
.bottom::after  { transform: rotate(-135deg);background: var(--color-primary-dark); }

/* Reveal on hover / active / JS .open class */
.container:hover  .top::before,
.container:hover  .top::after,
.container:hover  .bottom::before,
.container:hover  .bottom::after,
.container:active .top::before,
.container:active .top::after,
.container:active .bottom::before,
.container:active .bottom::after,
.container.open   .top::before,
.container.open   .top::after,
.container.open   .bottom::before,
.container.open   .bottom::after {
  margin-left: 200px;
  transform-origin: -200px 50%;
  transition-delay: 0s;
}

.container:hover  .center,
.container:active .center,
.container.open   .center {
  opacity: 1;
  transition-delay: 0.2s;
}

/* ─── Center form panel ──────────────────────────────────────────────────────── */
.center {
  position: absolute;
  width: 400px;
  height: 400px;
  top: 50%;
  left: 50%;
  margin-left: -200px;
  margin-top: -200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 30px;
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.445, 0.05, 0, 1);
  transition-delay: 0s;
  color: var(--color-primary-dark);
  z-index: 20;
  pointer-events: none;   /* disabled until visible */
}

.container:hover  .center,
.container:active .center,
.container.open   .center {
  pointer-events: all;
}

.center h2 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: .5rem;
  color: var(--color-primary-dark);
  text-align: center;
  width: 100%;
}

.center form {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.center input[type="text"],
.center input[type="password"] {
  width: 100%;
  padding: 15px;
  margin: 5px 0;
  border-radius: 1px;
  border: 1px solid #ccc;
  font-family: inherit;
  font-size: .95rem;
  color: var(--color-primary-dark);
  background: rgba(255, 255, 255, 0.92);
  transition: border-color .15s;
}

.center input[type="text"]:focus,
.center input[type="password"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(94,121,168,.2);
}

.center .btn-login {
  width: 100%;
  margin-top: 10px;
  padding: 15px;
  background: var(--color-primary-dark);
  color: #fff;
  border: none;
  border-radius: 1px;
  font-family: inherit;
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: .06em;
  transition: background .15s;
}
.center .btn-login:hover { background: var(--color-primary); }

.center .error-msg {
  width: 100%;
  margin-top: .5rem;
  font-size: .82rem;
  color: var(--color-accent-brown);
  text-align: center;
  min-height: 1.2rem;
}

/* ─── Mobile: always show the form ──────────────────────────────────────────── */
@media (max-width: 600px) {
  .center {
    opacity: 1;
    pointer-events: all;
    width: 90vw;
    height: auto;
    min-height: 340px;
    margin-left: -45vw;
    margin-top: -170px;
  }

  .top::before,
  .top::after,
  .bottom::before,
  .bottom::after {
    margin-left: 200px;
    transform-origin: -200px 50%;
    transition-delay: 0s;
  }
}