/* 
===========================================
ChargeUpTalent - Layout Styles
===========================================
Container, Grid System, Header, Footer, Sections
*/

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

@media (min-width: 600px) {
  .container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 900px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Responsive grids */
@media (min-width: 600px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Flex utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-start {
  justify-content: flex-start;
}

.justify-end {
  justify-content: flex-end;
}

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-light-gray);
  transition: background-color var(--transition-base);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  padding: var(--space-4) var(--container-padding);
}

@media (min-width: 600px) {
  .header__container {
    padding: var(--space-4) var(--space-6);
  }
}

@media (min-width: 900px) {
  .header__container {
    padding: var(--space-4) var(--space-8);
  }
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-headline);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  color: var(--color-charcoal);
  text-decoration: none;
  transition: all var(--transition-fast);
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.header__logo:hover {
  color: var(--color-electric-blue);
  transform: translateY(-1px);
}

.header__logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-electric-blue), var(--color-navy));
  padding: var(--space-2);
  box-shadow: var(--shadow-sm);
}

.header__logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-electric-blue), var(--color-navy));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.header__logo:hover .header__logo-icon {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.header__logo span {
  background: linear-gradient(135deg, var(--color-electric-blue), var(--color-navy));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.5px;
}

.header__nav {
  display: none;
}

@media (min-width: 900px) {
  .header__nav {
    display: flex;
  }
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__mobile-toggle {
  display: block;
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  z-index: var(--z-modal);
}

@media (min-width: 900px) {
  .header__mobile-toggle {
    display: none;
  }
}

.header__mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-charcoal);
  margin: 4px 0;
  transition: var(--transition-fast);
  transform-origin: center;
}

.header__mobile-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__mobile-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.header__mobile-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
.header__mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: var(--z-modal-backdrop);
  display: flex;
  flex-direction: column;
  padding: 100px var(--space-6) var(--space-6);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.header__mobile-nav.is-open {
  transform: translateX(0);
}

@media (min-width: 900px) {
  .header__mobile-nav {
    display: none;
  }
}

/* Sections */
.section {
  padding: var(--section-padding) 0;
}

.section--sm {
  padding: var(--space-12) 0;
}

.section--lg {
  padding: var(--space-24) 0;
}

.section--alt {
  background-color: var(--color-light-gray);
}

.section--dark {
  background-color: var(--color-charcoal);
  color: var(--color-white);
}

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

.section__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section__title {
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-medium-gray);
  max-width: 600px;
  margin: 0 auto;
}

.section--dark .section__subtitle,
.section--navy .section__subtitle {
  color: rgba(255, 255, 255, 0.8);
}

/* Hero Section */
.hero {
  padding: var(--space-20) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-charcoal) 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.02"><circle cx="30" cy="30" r="2"/></g></svg>');
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-6);
  line-height: var(--line-height-tight);
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-8);
  opacity: 0.9;
  line-height: var(--line-height-relaxed);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 600px) {
  .hero {
    padding: var(--space-24) 0;
  }
  
  .hero__title {
    font-size: var(--font-size-5xl);
  }
  
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 900px) {
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

/* Footer */
.footer {
  background-color: var(--color-charcoal);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__main {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 600px) {
  .footer__main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .footer__main {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
  color: var(--color-chartreuse);
}

.footer__section p {
  color: rgba(255, 255, 255, 0.8);
  line-height: var(--line-height-relaxed);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-chartreuse);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-white);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer__social-link img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-electric-blue);
  transform: translateY(-2px);
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 600px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal-link {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__legal-link:hover {
  color: var(--color-white);
}

/* Page Layout */
.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page__main,
.main {
  flex: 1;
}

/* Content wrapper for max-width and centering */
.content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

@media (min-width: 600px) {
  .content {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 900px) {
  .content {
    padding: 0 var(--space-8);
  }
}