:root {
  --navy: #0f2744;
  --accent: #2f6fed;
  --accent-hover: #2558c7;
  --brand: #f39200;
  --bg: #eef2f7;
  --card: #ffffff;
  --text: #1c2b3a;
  --muted: #6b7c8f;
  --border: #e3e9f1;
  --shadow: 0 8px 24px rgba(15, 39, 68, 0.08);
  --radius: 16px;
}

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

body.rk-login {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

/* ——— Brand panel ——— */
.rk-login-brand {
  background: linear-gradient(180deg, var(--navy) 0%, #0a1a2f 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 48px 56px;
  position: relative;
  overflow: hidden;
}

.rk-login-brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../login/images/bg_1.webp") center / cover no-repeat;
  opacity: 0.12;
  pointer-events: none;
}

.rk-login-brand-inner {
  position: relative;
  z-index: 1;
  max-width: 380px;
}

.rk-login-brand .brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
  text-decoration: none;
  color: #fff;
}

.rk-login-brand .brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  object-fit: contain;
  background: #fff;
  padding: 5px;
  display: block;
  flex-shrink: 0;
}

.rk-login-brand .brand-name {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.3px;
}

.rk-login-brand h2 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.4px;
  margin-bottom: 12px;
}

.rk-login-brand p {
  color: #9db0c7;
  font-size: 15px;
  line-height: 1.6;
}

.rk-login-brand-foot {
  margin-top: 40px;
  font-size: 13px;
  color: #6d85a3;
}

/* ——— Form side ——— */
.rk-login-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
}

.rk-login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 36px;
  width: 100%;
  max-width: 420px;
}

.rk-login-card h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 6px;
  color: var(--navy);
}

.rk-login-card .rk-login-sub {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 28px;
}

.rk-login-field {
  margin-bottom: 18px;
}

.rk-login-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.rk-login-field input[type="text"],
.rk-login-field input[type="password"] {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.rk-login-field input[type="text"]:focus,
.rk-login-field input[type="password"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
}

.rk-login-field input::placeholder {
  color: #a8b5c4;
}

.rk-login-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.rk-login-remember {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.rk-login-remember input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.rk-login-forgot {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.rk-login-forgot:hover {
  text-decoration: underline;
}

.rk-login-btn {
  width: 100%;
  height: 48px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}

.rk-login-btn:hover {
  background: var(--accent-hover);
}

.rk-login-foot {
  margin-top: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

/* ——— Mobile brand strip ——— */
.rk-login-mobile-brand {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: linear-gradient(180deg, var(--navy) 0%, #0a1a2f 100%);
  color: #fff;
}

.rk-login-mobile-brand .brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  object-fit: contain;
  background: #fff;
  padding: 4px;
  display: block;
  flex-shrink: 0;
}

.rk-login-mobile-brand .brand-name {
  font-weight: 700;
  font-size: 17px;
}

@media (max-width: 768px) {
  .rk-login-wrap {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .rk-login-brand {
    display: none;
  }

  .rk-login-mobile-brand {
    display: flex;
  }

  .rk-login-main {
    padding: 24px 16px 32px;
    align-items: flex-start;
  }

  .rk-login-card {
    padding: 28px 22px;
    box-shadow: none;
    border: none;
    background: transparent;
    max-width: 100%;
  }
}