/**
 * CBA Platform Phase 1 - Main Styles
 * BEM naming convention: .cba-[component]__[element]--[modifier]
 */

@import "design-tokens.css";

/* ========== HEADER ========== */

.cba-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px var(--space-xl);
  background-color: var(--cba-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.cba-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-weight: var(--font-weight-bold);
  font-size: 18px;
  color: var(--cba-navy);
}

.cba-header__logo-image {
  display: block;
  width: auto;
  height: 50px;
  object-fit: contain;
}

.cba-header__platform-name {
  color: var(--cba-navy);
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  padding-left: var(--space-md);
  border-left: 1px solid var(--cba-border);
  white-space: nowrap;
}

@media (max-width: 767px) {
  .cba-header__logo-image {
    display: none;
  }

  .cba-header__logo {
    width: 38px;
    height: 38px;
    background: url('../static/images/provia-favicon.svg') center / contain no-repeat;
  }

  .cba-header__platform-name {
    display: none;
  }
}

.cba-header__logo-text {
  display: none;
}

@media (min-width: 768px) {
  .cba-header__logo-text {
    display: inline;
  }
}

.cba-header__nav {
  display: none;
  list-style: none;
  gap: var(--space-lg);
}

@media (min-width: 1024px) {
  .cba-header__nav {
    display: flex;
  }
}

.cba-header__nav-item a {
  color: var(--cba-text-main);
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  transition: color var(--transition-fast);
}

.cba-header__nav-item a:hover,
.cba-header__nav-item a.is-active {
  color: var(--cba-blue);
}

.cba-header__cta {
  background-color: var(--cba-gold);
  color: var(--cba-white);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  font-size: 14px;
  transition: background-color var(--transition-fast);
}

.cba-header__cta:hover {
  background-color: #c88514;
}

/* Mobile Menu Toggle */
.cba-header__menu-toggle {
  display: block;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--cba-navy);
}

@media (min-width: 1024px) {
  .cba-header__menu-toggle {
    display: none;
  }
}

/* ========== HERO SECTION ========== */

.cba-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
  padding: var(--space-2xl) var(--space-xl);
  background: linear-gradient(135deg, var(--cba-bg-soft) 0%, var(--cba-white) 100%);
  min-height: 500px;
}

@media (min-width: 1024px) {
  .cba-hero {
    grid-template-columns: 1fr 1fr;
    min-height: 600px;
    padding: var(--space-2xl) 60px;
  }
}

.cba-hero__content h1 {
  margin-bottom: var(--space-lg);
  color: var(--cba-navy);
}

.cba-hero__content p {
  font-size: 18px;
  line-height: var(--line-height-body);
  color: var(--cba-text-muted);
  margin-bottom: var(--space-xl);
}

.cba-hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.cba-hero__preview {
  display: none;
}

@media (min-width: 1024px) {
  .cba-hero__preview {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  }
}

/* ========== BUTTONS ========== */

.cba-button {
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  display: inline-block;
}

.cba-button--primary {
  background-color: var(--cba-navy);
  color: var(--cba-white);
}

.cba-button--primary:hover {
  background-color: var(--cba-blue);
}

.cba-button--secondary {
  background-color: var(--cba-white);
  color: var(--cba-navy);
  border: 2px solid var(--cba-navy);
}

.cba-button--secondary:hover {
  background-color: var(--cba-bg-soft);
}

.cba-button--large {
  padding: 16px 32px;
  font-size: 18px;
}

.cba-button:disabled,
.cba-button.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========== SECTIONS ========== */

section {
  padding: var(--space-2xl) var(--space-xl);
}

@media (min-width: 1024px) {
  section {
    padding: var(--space-2xl) 60px;
  }
}

section > h2 {
  text-align: center;
  margin-bottom: var(--space-2xl);
  color: var(--cba-navy);
  position: relative;
  padding-bottom: var(--space-lg);
}

section > h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--cba-gold);
  border-radius: 2px;
}

/* ========== CBA OVERVIEW CARDS ========== */

.cba-overview {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .cba-overview {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cba-overview {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========== CARDS ========== */

.cba-card {
  background-color: var(--cba-white);
  border: 1px solid var(--cba-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cba-card:hover {
  box-shadow: 0 12px 32px rgba(11, 55, 111, 0.12);
  transform: translateY(-4px);
}

.cba-card__icon {
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--cba-bg-soft);
  border-radius: var(--radius-md);
  font-size: 34px;
  line-height: 1;
}

.cba-card__title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  color: var(--cba-navy);
}

.cba-card__description {
  color: var(--cba-text-muted);
  line-height: var(--line-height-body);
  flex-grow: 1;
}

.cba-card--benefit {
  padding: var(--space-xl);
}

.cba-card--audience {
  text-align: center;
}

.cba-card--audience .cba-card__icon {
  margin-left: auto;
  margin-right: auto;
}

/* ========== WHO IT SERVES ========== */

.cba-audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .cba-audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cba-audience-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cba-audience-intro {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--cba-text-muted);
  margin-bottom: var(--space-lg);
  font-size: 18px;
}

/* ========== BENEFITS GRID ========== */

.cba-benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .cba-benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cba-benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========== KNOWLEDGE ASSISTANT PREVIEW ========== */

.cba-assistant-section {
  background-color: var(--cba-bg-soft);
}

.cba-assistant-preview {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .cba-assistant-preview {
    grid-template-columns: 1fr 1fr;
  }
}

.cba-assistant-preview__content h3 {
  color: var(--cba-navy);
  margin-bottom: var(--space-md);
}

.cba-assistant-preview__content p {
  color: var(--cba-text-muted);
  margin-bottom: var(--space-lg);
}

.cba-badge {
  display: inline-block;
  background-color: var(--cba-blue);
  color: var(--cba-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
}

.cba-assistant-mockup {
  background-color: var(--cba-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* ========== FORM SECTION ========== */

.cba-form-section {
  background-color: var(--cba-white);
}

.cba-form-container {
  max-width: 600px;
  margin: 0 auto;
}

.cba-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cba-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.cba-form__label {
  font-weight: var(--font-weight-semibold);
  color: var(--cba-text-main);
  font-size: 14px;
}

.cba-form__label .required {
  color: #dc2626;
}

.cba-form__input,
.cba-form__textarea,
.cba-form__select {
  padding: var(--space-md);
  border: 1px solid var(--cba-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  color: var(--cba-text-main);
  transition: border-color var(--transition-fast);
}

.cba-form__input:focus,
.cba-form__textarea:focus,
.cba-form__select:focus {
  border-color: var(--cba-blue);
  outline: none;
}

.cba-form__textarea {
  resize: vertical;
  min-height: 100px;
}

.cba-form__checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background-color: var(--cba-bg-soft);
  border-radius: var(--radius-md);
}

.cba-form__checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  cursor: pointer;
}

.cba-form__checkbox-label {
  font-size: 14px;
  line-height: 1.5;
  color: var(--cba-text-main);
  cursor: pointer;
}

.cba-form__error {
  color: #dc2626;
  font-size: 13px;
  display: none;
}

.cba-form__field.has-error .cba-form__error {
  display: block;
}

.cba-form__field.has-error .cba-form__input,
.cba-form__field.has-error .cba-form__select,
.cba-form__field.has-error .cba-form__textarea {
  border-color: #dc2626;
}

.cba-form__submit {
  margin-top: var(--space-lg);
}

.cba-form__success-message {
  display: none;
  padding: var(--space-lg);
  background-color: #d1fae5;
  color: #065f46;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--cba-green);
}

.cba-form__success-message.show {
  display: block;
}

/* ========== CONTACT SECTION ========== */

.cba-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .cba-contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cba-contact-item {
  display: flex;
  gap: var(--space-md);
}

.cba-contact-item__icon {
  font-size: 24px;
}

.cba-contact-item__content h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
}

.cba-contact-item__content p {
  color: var(--cba-text-muted);
  font-size: 14px;
}

/* ========== FOOTER ========== */

footer {
  background-color: var(--cba-navy);
  color: var(--cba-white);
  padding: var(--space-xl);
  text-align: center;
  font-size: 14px;
  margin-top: var(--space-2xl);
}

footer a {
  color: var(--cba-gold);
}

footer a:hover {
  text-decoration: underline;
}

footer__links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

footer__copyright {
  color: rgba(255, 255, 255, 0.8);
}

/* ========== ASSISTANT CARD (HERO PREVIEW) ========== */

.cba-assistant-card {
  background: linear-gradient(135deg, var(--cba-bg-soft) 0%, var(--cba-white) 100%);
  border: 1px solid var(--cba-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: 0 10px 40px rgba(11, 55, 111, 0.1);
  position: relative;
  overflow: hidden;
}

.cba-assistant-card__badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background-color: var(--cba-blue);
  color: var(--cba-white);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.5px;
}

.cba-assistant-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-top: var(--space-md);
}

.cba-assistant-card__icon {
  font-size: 32px;
}

.cba-assistant-card__header h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  color: var(--cba-navy);
  margin: 0;
}

.cba-assistant-card__chat {
  background-color: var(--cba-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-height: 140px;
  border: 1px solid var(--cba-border);
}

.cba-assistant-card__message {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: var(--line-height-body);
}

.cba-assistant-card__message--user {
  background-color: var(--cba-blue);
  color: var(--cba-white);
  margin-left: auto;
  max-width: 80%;
  text-align: right;
}

.cba-assistant-card__message--assistant {
  background-color: var(--cba-bg-soft);
  color: var(--cba-text-main);
  margin-right: auto;
  max-width: 85%;
}

.cba-assistant-card__footer {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--cba-border);
}

.cba-assistant-card__resource-icon {
  font-size: 24px;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.cba-assistant-card__resource-icon:hover {
  opacity: 1;
}

@media (max-width: 640px) {
  .cba-assistant-card {
    padding: var(--space-lg);
  }

  .cba-assistant-card__badge {
    top: var(--space-sm);
    right: var(--space-sm);
    font-size: 11px;
    padding: 4px 10px;
  }

  .cba-assistant-card__header {
    gap: var(--space-sm);
  }

  .cba-assistant-card__icon {
    font-size: 24px;
  }

  .cba-assistant-card__message--user,
  .cba-assistant-card__message--assistant {
    max-width: 90%;
  }

  .cba-assistant-card__footer {
    gap: var(--space-md);
  }

  .cba-assistant-card__resource-icon {
    font-size: 20px;
  }
}

/* ========== RESPONSIVE UTILITIES ========== */

@media (max-width: 767px) {
  .hide-mobile {
    display: none;
  }
}

@media (min-width: 768px) {
  .show-mobile-only {
    display: none;
  }
}

/* Pilot form introduction and double opt-in notice */
.cba-form__intro {
  max-width: 760px;
  margin: 0 auto 20px;
  text-align: center;
  color: var(--cba-text-muted);
  line-height: 1.7;
}

.cba-form__confirmation-note {
  max-width: 760px;
  margin: 0 auto 32px;
  padding: 16px 18px;
  border: 1px solid #B9D7F0;
  border-left: 4px solid var(--cba-blue);
  border-radius: var(--radius-md);
  background-color: #EFF7FD;
  color: var(--cba-navy);
  line-height: 1.6;
}

.cba-form__confirmation-note strong {
  font-weight: var(--font-weight-bold);
}

/* Who It Serves card descriptions */
.cba-card--audience .cba-card__description {
  margin: 10px 0 0;
  color: var(--cba-text-muted);
  font-size: 14px;
  line-height: 1.55;
}

.cba-card--audience {
  height: 100%;
}

/* ========== PROVIA-STYLE FOOTER ========== */

.cba-footer {
  background-color: var(--cba-navy);
  color: rgba(255, 255, 255, 0.88);
  padding: 32px var(--space-xl) 36px;
}

.cba-footer__divider {
  width: min(100%, 1200px);
  margin: 0 auto 32px;
  border-top: 1px dashed rgba(216, 154, 24, 0.75);
}

.cba-footer__inner {
  width: min(100%, 1200px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cba-footer__copyright {
  font-size: 15px;
  line-height: 1.6;
}

.cba-footer__copyright a,
.cba-footer__links a {
  color: var(--cba-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.cba-footer__copyright a:hover,
.cba-footer__links a:hover {
  color: #F2BE49;
  text-decoration: underline;
}

.cba-footer__links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  font-size: 15px;
  white-space: nowrap;
}

.cba-footer__separator {
  color: rgba(255, 255, 255, 0.24);
}

@media (max-width: 767px) {
  .cba-footer {
    padding: 28px var(--space-lg);
  }

  .cba-footer__divider {
    margin-bottom: 24px;
  }

  .cba-footer__inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 18px;
  }

  .cba-footer__links {
    flex-wrap: wrap;
    justify-content: center;
    white-space: normal;
  }
}

/* ========== CONTACT CARDS ========== */

.cba-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 36px;
}

@media (min-width: 900px) {
  .cba-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.cba-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px;
  background-color: var(--cba-white);
  border: 1px solid #D7E3EF;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(11, 55, 111, 0.06);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast);
}

.cba-contact-item:hover {
  transform: translateY(-3px);
  border-color: #B7CEE5;
  box-shadow: 0 14px 30px rgba(11, 55, 111, 0.10);
}

.cba-contact-item__icon {
  flex: 0 0 58px;
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background-color: #EFF6FC;
  font-size: 30px;
  line-height: 1;
}

.cba-contact-item__content {
  min-width: 0;
}

.cba-contact-item__content h3 {
  margin: 0 0 8px;
  color: var(--cba-navy);
  font-size: 20px;
  line-height: 1.3;
}

.cba-contact-item__content p {
  margin: 0;
  color: var(--cba-text-muted);
  line-height: 1.65;
}

.cba-contact-item__content a {
  color: var(--cba-blue);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.cba-contact-item__content a:hover {
  text-decoration: underline;
}

@media (max-width: 599px) {
  .cba-contact-item {
    padding: 20px;
  }

  .cba-contact-item__icon {
    flex-basis: 50px;
    width: 50px;
    height: 50px;
    font-size: 26px;
  }
}