/* Component Styles */

/* ========== Navigation ========== */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--neutral-100);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-size: var(--text-h4);
  font-weight: var(--fw-bold);
  color: var(--primary-navy);
  transition: color var(--transition-fast);
}

.nav__logo:hover {
  color: var(--primary-blue);
}

.nav__links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.nav__link {
  color: var(--neutral-700);
  font-weight: var(--fw-medium);
  font-size: var(--text-body);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link:hover {
  color: var(--primary-navy);
}

.nav__link.active {
  color: var(--primary-navy);
}

.nav__link.active::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--primary-navy);
  bottom: -4px;
  left: 0;
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.nav__toggle-line {
  width: 24px;
  height: 2px;
  background: var(--neutral-900);
  transition: all var(--transition-base);
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-6);
    gap: var(--space-4);
    border-bottom: 1px solid var(--neutral-100);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav__links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.active .nav__toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav__toggle.active .nav__toggle-line:nth-child(2) {
    opacity: 0;
  }

  .nav__toggle.active .nav__toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: var(--fw-semibold);
  font-size: var(--text-body);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary-navy);
  color: var(--white);
  border-color: var(--primary-navy);
}

.btn-primary:hover {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-navy);
  border-color: var(--primary-navy);
}

.btn-secondary:hover {
  background: var(--primary-navy);
  color: var(--white);
}

.btn-text {
  padding: 0;
  color: var(--primary-blue);
  position: relative;
}

.btn-text::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 0;
  background: var(--primary-blue);
  transition: width var(--transition-base);
}

.btn-text:hover::after {
  width: 100%;
}

/* ========== Cards ========== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--neutral-100);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Project Cards */
.project-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  opacity: 1;
}

.project-card__image-container {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
  background: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform var(--transition-base);
}

.project-card:hover .project-card__image {
  transform: scale(1.05);
}

.project-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent, rgba(0, 61, 91, 0.8));
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

.project-card__overlay-text {
  color: var(--white);
  font-weight: var(--fw-semibold);
}

.project-card__content {
  padding: var(--space-5);
}

.project-card__title {
  font-size: var(--text-h4);
  font-weight: var(--fw-bold);
  color: var(--neutral-900);
  margin-bottom: var(--space-2);
}

.project-card__description {
  color: var(--neutral-700);
  font-size: var(--text-body);
  margin-bottom: var(--space-4);
}

.project-card__tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--accent-cream);
  color: var(--primary-navy);
  font-size: var(--text-small);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
}

/* ========== Skills Grid ========== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.skill-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.skill-icon__image {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-cream);
  border-radius: var(--radius-lg);
  font-size: 32px;
  transition: all var(--transition-base);
}

.skill-icon:hover .skill-icon__image {
  background: var(--primary-navy);
  color: var(--white);
  transform: translateY(-4px);
}

.skill-icon__label {
  font-size: var(--text-small);
  font-weight: var(--fw-medium);
  color: var(--neutral-700);
}

/* ========== Footer ========== */
.footer {
  background: var(--primary-navy);
  color: var(--white);
  padding: var(--space-10) 0 var(--space-6);
  margin-top: var(--space-12);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer__section h3 {
  color: var(--white);
  margin-bottom: var(--space-4);
}

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

.footer__link {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-6);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-small);
}

/* ========== Decorative Elements ========== */
.star-accent {
  color: var(--accent-gold);
  font-size: 24px;
  display: inline-block;
  animation: twinkle 2s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% {
    opacity: 0.5;
    transform: scale(1) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(1.1) rotate(180deg);
  }
}

/* ========== Scroll Indicator ========== */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator__text {
  font-size: var(--text-small);
  color: var(--neutral-500);
  font-weight: var(--fw-medium);
}

.scroll-indicator__icon {
  width: 24px;
  height: 40px;
  border: 2px solid var(--neutral-300);
  border-radius: var(--radius-full);
  position: relative;
}

.scroll-indicator__icon::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--primary-navy);
  border-radius: var(--radius-full);
  animation: scroll-down 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

@keyframes scroll-down {
  0% {
    opacity: 1;
    top: 8px;
  }
  100% {
    opacity: 0;
    top: 24px;
  }
}