/* ============================================
   Cyrus Navasca - Portfolio
   Elegant, smooth animations, classic blue
   ============================================ */

:root {
  --blue-900: #0c2340;
  --blue-800: #143a5e;
  --blue-700: #1e5a8e;
  --blue-600: #2a7ab8;
  --blue-500: #3d8fd1;
  --blue-400: #6bb3e8;
  --blue-300: #9ec9f0;
  --blue-100: #e3f0fa;
  --blue-50: #f0f7fc;
  --white: #ffffff;
  --gray-200: #e5e7eb;
  --gray-500: #6b7280;
  --gray-700: #374151;

  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --max-width: 72rem;
  --header-height: 4rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --shadow: 0 4px 6px -1px rgba(12, 35, 64, 0.06), 0 2px 4px -2px rgba(12, 35, 64, 0.04);
  --shadow-md: 0 10px 15px -3px rgba(12, 35, 64, 0.08), 0 4px 6px -4px rgba(12, 35, 64, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(12, 35, 64, 0.08), 0 8px 10px -6px rgba(12, 35, 64, 0.04);

  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.5s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
}

/* ----- Scroll-triggered animations ----- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.visible:nth-child(1) { transition-delay: 0s; }
.animate-on-scroll.visible:nth-child(2) { transition-delay: 0.05s; }
.animate-on-scroll.visible:nth-child(3) { transition-delay: 0.1s; }
.animate-on-scroll.visible:nth-child(4) { transition-delay: 0.15s; }
.animate-on-scroll.visible:nth-child(5) { transition-delay: 0.2s; }
.animate-on-scroll.visible:nth-child(6) { transition-delay: 0.25s; }
.animate-on-scroll.visible:nth-child(7) { transition-delay: 0.3s; }
.animate-on-scroll.visible:nth-child(8) { transition-delay: 0.35s; }
.animate-on-scroll.visible:nth-child(9) { transition-delay: 0.4s; }

/* ----- Layout ----- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  scroll-margin-top: var(--header-height);
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--blue-900);
  margin-bottom: var(--space-2xl);
  text-align: center;
  letter-spacing: -0.04em;
  line-height: 1.1;
  position: relative;
  display: inline-block;
  width: 100%;
}

/* Section titles on dark backgrounds – gradient, glow, and accent */
.projects .section-title,
.skills .section-title,
.experiences .section-title,
.education .section-title,
.contact .section-title {
  color: var(--blue-300);
  background: linear-gradient(135deg, #ffffff 0%, var(--blue-300) 50%, var(--blue-400) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.projects .section-title::after,
.skills .section-title::after,
.experiences .section-title::after,
.education .section-title::after,
.contact .section-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 4rem;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--blue-400), transparent);
  border-radius: 2px;
  transition: transform var(--duration-slow) var(--ease-out);
}


.projects .section-title.visible::after,
.skills .section-title.visible::after,
.experiences .section-title.visible::after,
.education .section-title.visible::after,
.contact .section-title.visible::after {
  transform: translateX(-50%) scaleX(1);
}

/* ----- Header & Nav ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(12, 35, 64, 0.06);
  z-index: 100;
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--blue-700);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-logo:hover {
  color: var(--blue-600);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  color: var(--blue-800);
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  padding: 0.35rem 0;
  transition: color var(--duration-normal) var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 2px;
  bottom: 0;
  left: 0;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
  transform-origin: bottom right;
  transition: transform 0.35s var(--ease-out);
}

.nav-links a:hover {
  color: var(--blue-600);
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--blue-800);
  border-radius: 1px;
  transition: transform var(--duration-normal) var(--ease-out), opacity var(--duration-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

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

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: calc(var(--header-height) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
  text-align: left;
  overflow: hidden;
  background: radial-gradient(circle at 15% 50%, rgba(61, 143, 209, 0.2), transparent 40%),
              radial-gradient(circle at 85% 30%, rgba(107, 179, 232, 0.2), transparent 40%),
              var(--blue-900);
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-2xl);
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
}

.hero-photo-wrap {
  width: 100%;
  max-width: 400px;
  height: 500px;
  border-radius: 2rem;
  overflow: hidden;
  border: 4px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Hero carousel */
.hero-carousel {
  position: relative;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.hero-carousel-track {
  position: relative;
  width: 100%;
  height: 500px;
}

.hero-slide {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease-out), visibility 0.4s;
}

.hero-slide.hero-slide-active {
  position: relative;
  opacity: 1;
  visibility: visible;
}

.hero-carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: rgba(12, 35, 64, 0.7);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.hero-carousel-arrow:hover {
  background: rgba(30, 90, 142, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  transform: translateY(-50%) scale(1.08);
}

.hero-carousel-arrow svg {
  width: 1.25rem;
  height: 1.25rem;
}

.hero-carousel-prev {
  left: -0.75rem;
}

.hero-carousel-next {
  right: -0.75rem;
}

.hero-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 1rem;
  margin-top: 0;
  z-index: 3;
}

.hero-carousel-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  padding: 0;
  transition: background 0.25s, transform 0.2s;
}

.hero-carousel-dot:hover {
  background: rgba(255, 255, 255, 0.6);
}

.hero-carousel-dot.hero-dot-active {
  background: #fff;
  transform: scale(1.25);
}

.hero-photo-caption {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  max-width: 340px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--blue-300);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: -0.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1.1;
  background: linear-gradient(to right, #ffffff, var(--blue-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 32rem;
  line-height: 1.6;
}

.hero-subtitle strong {
  color: var(--white);
  font-weight: 700;
}

.hero-contact-link {
  color: var(--blue-300);
  text-decoration: none;
}

.hero-contact-link:hover {
  color: var(--white);
  text-decoration: underline;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
  margin-top: var(--space-md);
  width: 100%;
}

.hero-social-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xl);
  margin-top: var(--space-sm);
}

.btn-resume {
  width: 100%;
  max-width: 16rem;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 15px rgba(61, 143, 209, 0.3);
}

.btn-resume::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: skewX(-20deg);
  transition: left 0.7s ease;
}

.btn-resume:hover::after {
  left: 150%;
}

.btn-icon {
  width: 1.25rem;
  height: 1.25rem;
  transition: transform var(--duration-normal) var(--ease-out);
}

.btn-resume:hover .btn-icon {
  transform: translateY(3px);
}

.btn-social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  transition: transform var(--duration-fast) var(--ease-out), opacity var(--duration-fast) var(--ease-out);
}

.social-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.btn-social:hover {
  transform: translateY(-3px) scale(1.1);
  opacity: 0.9;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background var(--duration-normal) var(--ease-out), color var(--duration-fast), transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.btn-primary {
  background: var(--blue-500);
  color: var(--white);
  border: none;
}

.btn-primary:hover {
  background: var(--blue-400);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(30, 90, 142, 0.4);
}

.btn-visit {
  align-self: flex-start;
  margin-top: var(--space-md);
  padding: 0.35rem 0.95rem;
  font-size: 0.75rem;
  border-radius: 999px;
  gap: 0.5rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-50);
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.35), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(107, 179, 232, 0.35), transparent 55%),
    rgba(5, 18, 36, 0.9);
  border: 1px solid rgba(158, 201, 240, 0.9);
  box-shadow:
    0 10px 26px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(12, 35, 64, 0.7);
  backdrop-filter: blur(12px);
}

.btn-visit:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(158, 201, 240, 0.9),
    0 0 18px rgba(107, 179, 232, 0.6);
}

.btn-visit-label {
  line-height: 1;
}

.btn-visit-icon {
  width: 1rem;
  height: 1rem;
}

.experience-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ----- Shared hero-style background for all sections ----- */
.projects,
.skills,
.experiences,
.education,
.contact {
  background: radial-gradient(circle at 15% 50%, rgba(61, 143, 209, 0.2), transparent 40%),
              radial-gradient(circle at 85% 30%, rgba(107, 179, 232, 0.2), transparent 40%),
              var(--blue-900);
}

/* ----- Projects ----- */
section.projects {
  position: relative;
  background: radial-gradient(circle at 15% 50%, rgba(61, 143, 209, 0.2), transparent 40%),
              radial-gradient(circle at 85% 30%, rgba(107, 179, 232, 0.2), transparent 40%),
              var(--blue-900);
}

section.projects .container {
  position: relative;
  z-index: 1;
}

/* ----- Experiences ----- */
section.experiences {
  position: relative;
  background: radial-gradient(circle at 15% 50%, rgba(61, 143, 209, 0.2), transparent 40%),
              radial-gradient(circle at 85% 30%, rgba(107, 179, 232, 0.2), transparent 40%),
              var(--blue-900);
}

section.experiences .container {
  position: relative;
  z-index: 1;
}

/* ----- Skills: same background as hero (home) ----- */
.skills {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 15% 50%, rgba(61, 143, 209, 0.2), transparent 40%),
              radial-gradient(circle at 85% 30%, rgba(107, 179, 232, 0.2), transparent 40%),
              var(--blue-900);
}

.skills .container {
  position: relative;
  z-index: 1;
}

.skills-subheader {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: #fff;
  margin: calc(var(--space-xl) * -0.5) auto var(--space-lg);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
}

.skills-icons-row + .skills-subheader {
  margin-top: var(--space-2xl);
}

.skills-icons-row {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.skills-icons-row .skill-icon-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.skills-icons-row .skill-icon-label {
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.skill-icon-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  transition: transform var(--duration-fast) var(--ease-out);
}

.skill-icon-box {
  position: relative;
  width: 5rem;
  height: 5rem;
  min-width: 5rem;
  min-height: 5rem;
  max-width: 5rem;
  max-height: 5rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  border-radius: var(--radius-xl);
  overflow: hidden;
  transform-style: preserve-3d;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: radial-gradient(circle at 15% 15%, rgba(255, 255, 255, 0.15), transparent 55%),
              radial-gradient(circle at 80% 85%, rgba(158, 201, 240, 0.18), transparent 55%),
              rgba(0, 0, 0, 0.08);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.45);
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.skill-icon-box::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -20%;
  width: 160%;
  height: 160%;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.2), transparent 40%, transparent 60%, rgba(255, 255, 255, 0.3));
  opacity: 0;
  transform: translate3d(-30%, 0, 0) skewX(-12deg);
  transition: opacity var(--duration-normal) var(--ease-out), transform var(--duration-slow) var(--ease-out);
  pointer-events: none;
}

.skill-icon-cell:hover .skill-icon-box {
  transform: translateY(-4px) rotate3d(1, -1, 0, 6deg);
  box-shadow: 0 32px 70px rgba(0, 0, 0, 0.6);
}

.skill-icon-cell:hover .skill-icon-box::before {
  opacity: 1;
  transform: translate3d(18%, 0, 0) skewX(-12deg);
}

.skill-icon-img {
  width: 100%;
  height: 100%;
  max-width: 4rem;
  max-height: 4rem;
  min-width: 0;
  min-height: 0;
  object-fit: contain;
  object-position: center;
}

.skill-icon-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #fff;
  text-align: center;
  line-height: 1.25;
}

/* ----- Education ----- */

.education-grid {
  max-width: 48rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.education-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out);
}

.education-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  border-color: rgba(158, 201, 240, 0.3);
  background: rgba(255, 255, 255, 0.12);
}

.education-card-image {
  height: 200px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.education-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.education-card:hover .education-img {
  transform: scale(1.05);
}

.education-card-body {
  padding: var(--space-xl);
}

.education-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.education-header h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.education-location {
  font-size: 0.875rem;
  color: var(--blue-300);
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  background: rgba(107, 179, 232, 0.2);
  border: 1px solid rgba(107, 179, 232, 0.3);
  border-radius: 999px;
}

.education-focus {
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue-300);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.03em;
}

.education-desc {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.65;
}

/* ----- Experiences ----- */
.experiences-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  max-width: 44rem;
  margin: 0 auto;
}

.experience-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  position: relative;
  padding: var(--space-lg);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out);
  overflow: hidden;
}

.experience-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  border-color: rgba(158, 201, 240, 0.3);
  background: rgba(255, 255, 255, 0.12);
}

.experience-card-logo {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 0.75rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(107, 179, 232, 0.4);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out);
}

.experience-card:hover .experience-card-logo {
  transform: scale(1.05);
  border-color: var(--blue-400);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25), 0 0 12px rgba(107, 179, 232, 0.2);
}

.experience-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.experience-card:hover .experience-logo-img {
  transform: scale(1.05);
}

.experience-card-body {
  flex: 1;
  min-width: 0;
  padding: var(--space-xs) 0 0;
}

.experience-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.experience-header h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.experience-date {
  font-size: 0.8125rem;
  color: var(--blue-300);
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  background: rgba(107, 179, 232, 0.2);
  border: 1px solid rgba(107, 179, 232, 0.3);
  border-radius: 999px;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.experience-company {
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue-300);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.03em;
  text-shadow: 0 0 20px rgba(107, 179, 232, 0.2);
}

.experience-desc {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.65;
  margin-top: var(--space-lg);
}

/* ----- Projects ----- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: var(--space-xl);
  max-width: 64rem;
  margin: 0 auto;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  border-color: rgba(158, 201, 240, 0.3);
  background: rgba(255, 255, 255, 0.12);
}

.project-card-image {
  flex-shrink: 0;
  height: 180px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

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

.project-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: var(--space-xl);
}

.project-card-body .project-bullets {
  flex: 1;
  min-height: 0;
}

.project-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  margin-bottom: var(--space-sm);
}

.project-bullets {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.project-bullets li {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.55;
  margin-bottom: 0.25rem;
  position: relative;
  padding-left: 1.25rem;
}

.project-bullets li strong {
  color: var(--blue-300);
}

.project-bullets li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.45em;
  width: 0.5rem;
  height: 0.5rem;
  background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
  transform: translateY(-50%) rotate(45deg);
  border-radius: 2px;
  box-shadow: 0 0 0 2px rgba(107, 179, 232, 0.15);
}

/* ----- Contact ----- */
.contact {
  color: var(--white);
}

.contact-intro {
  text-align: center;
  margin-bottom: var(--space-xl);
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
}

.contact-email-link {
  color: var(--blue-300);
  text-decoration: none;
}

.contact-email-link:hover {
  color: var(--white);
  text-decoration: underline;
}

.contact-form {
  max-width: 28rem;
  margin: 0 auto;
}

.contact-form .form-group {
  margin-bottom: var(--space-lg);
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.contact-form label {
  display: block;
  color: var(--white);
  font-weight: 500;
  margin-bottom: var(--space-xs);
  font-size: 0.9375rem;
}

.contact-form .required {
  color: var(--blue-300);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue-300);
  background: rgba(255, 255, 255, 0.08);
}

.contact-form textarea {
  resize: vertical;
  min-height: 6rem;
}

.btn-contact-submit {
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  font-weight: 600;
  font-size: 1rem;
  color: var(--blue-900);
  background: var(--blue-300);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.btn-contact-submit:hover {
  background: var(--white);
  color: var(--blue-900);
}

/* ----- Footer ----- */
.site-footer {
  padding: var(--space-xl) var(--space-lg);
  background: var(--blue-900);
  color: var(--blue-300);
  text-align: center;
}

.site-footer .container {
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.site-footer p {
  font-size: 0.875rem;
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-md);
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--duration-normal) var(--ease-out), opacity var(--duration-normal) var(--ease-out), visibility var(--duration-normal);
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-3xl));
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }

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

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

  .hero-social-actions {
    justify-content: center;
  }

  .hero-carousel {
    max-width: 320px;
  }

  .hero-carousel-prev {
    left: 0.25rem;
  }

  .hero-carousel-next {
    right: 0.25rem;
  }

  .hero-photo-wrap {
    height: 400px;
    max-width: 320px;
  }

  .hero-carousel-track {
    height: 400px;
  }

  .education-card-image {
    height: 160px;
  }

  .experience-card-logo {
    width: 56px;
    height: 56px;
  }

  .experience-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .education-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .contact-form .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    max-width: 20rem;
  }

  /* Skills icons: allow wrap on very narrow screens so they don’t overflow */
  .skills-icons-row {
    flex-wrap: wrap;
    justify-content: center;
  }
}