.page-login {
  font-family: 'Arial', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-color);
}

.page-login__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-login__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 10px 0 60px 0; /* body đã có padding-top */
  overflow: hidden;
}

.page-login__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.page-login__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5);
}

.page-login__hero-content {
  position: relative;
  z-index: 1;
  color: #F2FFF6; /* Text Main */
  max-width: 900px;
  padding: 20px;
}

.page-login__main-title {
  font-size: clamp(2em, 5vw, 3.5em);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #F2FFF6; /* Text Main */
}

.page-login__subtitle {
  font-size: 1.2em;
  margin-bottom: 30px;
  color: #A7D9B8; /* Text Secondary */
}

.page-login__form-section {
  padding: 60px 0;
  background-color: var(--bg-color);
}

.page-login__login-card {
  background-color: var(--card-b-g); /* #11271B */
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  max-width: 500px;
  margin: 0 auto;
  border: 1px solid var(--border-color); /* #2E7A4E */
}

.page-login__card-title {
  font-size: 2em;
  font-weight: 700;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 30px;
  text-align: center;
}

.page-login__form-group {
  margin-bottom: 20px;
}

.page-login__form-label {
  display: block;
  margin-bottom: 8px;
  color: #A7D9B8; /* Text Secondary */
  font-size: 0.95em;
}

.page-login__form-input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color); /* #2E7A4E */
  border-radius: 8px;
  background-color: #0A4B2C; /* Deep Green */
  color: #F2FFF6; /* Text Main */
  font-size: 1em;
  box-sizing: border-box;
}

.page-login__form-input::placeholder {
  color: #A7D9B8;
  opacity: 0.7;
}

.page-login__form-input:focus {
  outline: none;
  border-color: var(--glow-color); /* #57E38D */
  box-shadow: 0 0 0 3px rgba(87, 227, 141, 0.3);
}

.page-login__form-options {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 25px;
}

.page-login__forgot-password {
  color: #57E38D; /* Glow */
  text-decoration: none;
  font-size: 0.9em;
}

.page-login__forgot-password:hover {
  text-decoration: underline;
}

.page-login__btn-primary {
  display: block;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* Button color */
  color: #F2FFF6; /* Text Main */
  font-size: 1.1em;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
  text-align: center;
  text-decoration: none;
  box-sizing: border-box;
}

.page-login__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
}

.page-login__register-text {
  text-align: center;
  margin-top: 25px;
  color: #A7D9B8; /* Text Secondary */
  font-size: 0.95em;
}

.page-login__register-link {
  color: #57E38D; /* Glow */
  text-decoration: none;
  font-weight: 600;
}

.page-login__register-link:hover {
  text-decoration: underline;
}

.page-login__why-login-section,
.page-login__guide-section,
.page-login__security-section,
.page-login__user-experience-section,
.page-login__faq-section,
.page-login__cta-section {
  padding: 60px 0;
  background-color: var(--bg-color);
}

.page-login__section-title {
  font-size: 2.5em;
  font-weight: 700;
  color: #F2FFF6; /* Text Main */
  text-align: center;
  margin-bottom: 40px;
}

.page-login__section-description {
  font-size: 1.1em;
  color: #A7D9B8; /* Text Secondary */
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
  line-height: 1.6;
}

.page-login__features-grid,
.page-login__experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-login__feature-item,
.page-login__experience-item {
  background-color: var(--card-b-g); /* #11271B */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color); /* #2E7A4E */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-login__feature-icon,
.page-login__experience-icon,
.page-login__security-icon {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  object-fit: cover;
}

.page-login__feature-title,
.page-login__experience-title {
  font-size: 1.5em;
  font-weight: 600;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 15px;
}

.page-login__feature-description,
.page-login__experience-description {
  font-size: 1em;
  color: #A7D9B8; /* Text Secondary */
  line-height: 1.6;
}

.page-login__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-login__step-item {
  background-color: var(--card-b-g); /* #11271B */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color); /* #2E7A4E */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-login__step-number {
  display: inline-block;
  width: 50px;
  height: 50px;
  line-height: 50px;
  border-radius: 50%;
  background-color: var(--deep-green); /* #0A4B2C */
  color: var(--gold-color); /* #F2C14E */
  font-size: 1.8em;
  font-weight: 700;
  margin-bottom: 20px;
  border: 2px solid var(--gold-color);
}

.page-login__step-title {
  font-size: 1.4em;
  font-weight: 600;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 10px;
}

.page-login__step-description {
  font-size: 0.95em;
  color: #A7D9B8; /* Text Secondary */
  line-height: 1.6;
}

.page-login__troubleshooting {
  margin-top: 60px;
  padding: 30px;
  background-color: #0A4B2C; /* Deep Green */
  border-radius: 12px;
  border: 1px solid var(--border-color); /* #2E7A4E */
  color: #A7D9B8;
}

.page-login__troubleshooting-title {
  font-size: 1.8em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 20px;
  text-align: center;
}

.page-login__troubleshooting-text strong {
  color: #F2FFF6;
}

.page-login__security-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-login__security-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 40px;
  background-color: var(--card-b-g);
  padding: 25px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-login__security-item:last-child {
  margin-bottom: 0;
}

.page-login__security-icon {
  flex-shrink: 0;
  width: 150px;
  height: auto;
  margin-right: 25px;
  border-radius: 8px;
  object-fit: cover;
}

.page-login__security-content {
  flex-grow: 1;
}

.page-login__security-heading {
  font-size: 1.6em;
  color: #F2FFF6; /* Text Main */
  margin-top: 0;
  margin-bottom: 10px;
}

.page-login__security-content p {
  color: #A7D9B8; /* Text Secondary */
  line-height: 1.6;
}

.page-login__security-tips {
  margin-top: 60px;
  padding: 30px;
  background-color: #0A4B2C; /* Deep Green */
  border-radius: 12px;
  border: 1px solid var(--border-color); /* #2E7A4E */
  color: #A7D9B8;
}

.page-login__security-tips-title {
  font-size: 1.8em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 20px;
  text-align: center;
}

.page-login__security-tips ol {
  list-style-type: decimal;
  padding-left: 25px;
  color: #A7D9B8;
}

.page-login__security-tips li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.page-login__faq-list {
  margin-top: 40px;
}

.page-login__faq-item {
  background-color: var(--card-b-g); /* #11271B */
  border: 1px solid var(--border-color); /* #2E7A4E */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-login__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  color: #F2FFF6; /* Text Main */
  font-size: 1.2em;
  font-weight: 600;
  background-color: #0A4B2C; /* Deep Green */
  user-select: none;
  list-style: none;
}

.page-login__faq-question::-webkit-details-marker {
  display: none;
}

.page-login__faq-toggle {
  font-size: 1.5em;
  font-weight: 700;
  color: var(--glow-color); /* #57E38D */
  margin-left: 15px;
}

.page-login__faq-answer {
  padding: 20px 25px;
  background-color: var(--card-b-g); /* #11271B */
  color: #A7D9B8; /* Text Secondary */
  line-height: 1.6;
  font-size: 1em;
}

.page-login__cta-section {
  text-align: center;
  padding: 80px 0;
  background-color: #0A4B2C; /* Deep Green */
  border-top: 1px solid var(--divider-color); /* #1E3A2A */
}

.page-login__cta-title {
  font-size: 2.8em;
  font-weight: 700;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 25px;
}

.page-login__cta-description {
  font-size: 1.3em;
  color: #A7D9B8; /* Text Secondary */
  max-width: 900px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
}

/* Variables */
:root {
  --bg-color: #08160F;
  --card-b-g: #11271B;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .page-login__main-title {
    font-size: clamp(2em, 6vw, 3em);
  }

  .page-login__section-title {
    font-size: 2em;
  }

  .page-login__cta-title {
    font-size: 2.2em;
  }

  .page-login__security-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .page-login__security-icon {
    margin-right: 0;
    margin-bottom: 20px;
  }
}

@media (max-width: 768px) {
  .page-login__container {
    padding: 0 15px;
  }

  .page-login__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-login__hero-content {
    padding: 15px;
  }

  .page-login__main-title {
    font-size: clamp(1.8em, 7vw, 2.8em);
    margin-bottom: 15px;
  }

  .page-login__subtitle {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-login__form-section,
  .page-login__why-login-section,
  .page-login__guide-section,
  .page-login__security-section,
  .page-login__user-experience-section,
  .page-login__faq-section,
  .page-login__cta-section {
    padding: 40px 0;
  }

  .page-login__login-card {
    padding: 30px;
  }

  .page-login__card-title {
    font-size: 1.8em;
    margin-bottom: 20px;
  }

  .page-login__form-input {
    padding: 10px 12px;
  }

  .page-login__btn-primary {
    padding: 12px 15px;
    font-size: 1em;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-login__register-text {
    font-size: 0.9em;
  }

  .page-login__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-login__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-login__feature-item,
  .page-login__experience-item,
  .page-login__step-item {
    padding: 25px;
  }

  .page-login__feature-title,
  .page-login__experience-title,
  .page-login__step-title {
    font-size: 1.3em;
  }

  .page-login__troubleshooting,
  .page-login__security-tips {
    padding: 25px;
  }

  .page-login__troubleshooting-title,
  .page-login__security-tips-title {
    font-size: 1.6em;
  }

  .page-login__security-item {
    padding: 20px;
  }

  .page-login__security-icon {
    width: 120px;
  }

  .page-login__security-heading {
    font-size: 1.4em;
  }

  .page-login__faq-question {
    padding: 15px 20px;
    font-size: 1.1em;
  }

  .page-login__faq-answer {
    padding: 15px 20px;
  }

  .page-login__cta-title {
    font-size: 2em;
  }

  .page-login__cta-description {
    font-size: 1.1em;
  }

  /* Mobile image responsiveness */
  .page-login img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-login__hero-image-wrapper,
  .page-login__container,
  .page-login__login-card,
  .page-login__feature-item,
  .page-login__experience-item,
  .page-login__step-item,
  .page-login__troubleshooting,
  .page-login__security-item,
  .page-login__security-tips,
  .page-login__faq-item,
  .page-login__cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .page-login__hero-section {
    padding-top: 10px !important;
  }

  .page-login__login-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-login__cta-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
}

/* Color contrast fixes for specific elements if needed */
/* Example: If a background is too close to text-secondary */
/* .page-login__element-with-contrast-issue {
  background-color: #0A4B2C !important; 
  color: #F2FFF6 !important; 
} */