/* =========================
   CSS RESET & VARIABLES
   ========================= */
:root {
  --color-bg-dark: #0f172a;
  --color-bg-light: #f8fafc;

  --color-surface-dark: #020617;
  --color-surface-light: #e5e7eb;

  --color-card-dark: #1e293b;
  --color-card-light: #ffffff;

  --color-text-dark: #f8fafc;
  --color-text-light: #0f172a;

  --color-accent: #38bdf8;

  --radius-sm: 6px;
  --radius-md: 10px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  --max-width: 1100px;
}

/* =========================
   GLOBAL STYLES
   ========================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark);
  line-height: 1.6;
  transition: background-color var(--transition-normal),
              color var(--transition-normal);
}

/* Light mode */
body.light {
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
}

/* =========================
   LAYOUT
   ========================= */
.site-header {
  background-color: var(--color-surface-dark);
  transition: background-color var(--transition-normal);
}

body.light .site-header {
  background-color: var(--color-surface-light);
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#logo {
  font-size: 1.4rem;
  font-weight: 700;
}

/* =========================
   NAVIGATION
   ========================= */
.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
  padding: 0;
  margin: 0;
}

.nav-links a {
  text-decoration: none;
  color: inherit;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

/* =========================
   CONTROLS
   ========================= */
.controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

select,
button {
  font-family: inherit;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
}

select {
  background-color: var(--color-card-dark);
  color: var(--color-text-dark);
}

body.light select {
  background-color: var(--color-card-light);
  color: var(--color-text-light);
}

#modeToggle {
  background-color: var(--color-accent);
  color: #ffffff;
}

/* =========================
   MAIN SECTIONS
   ========================= */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 20px;
}

section {
  text-align: center;
  padding: 60px 20px;
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.hero p {
  opacity: 0.85;
}

/* =========================
   WORKS / CARDS
   ========================= */
.works-grid,
.works {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.work-card,
.card {
  background-color: var(--color-card-dark);
  padding: 24px;
  border-radius: var(--radius-md);
  transition: transform var(--transition-normal),
              box-shadow var(--transition-normal);
}

body.light .work-card,
body.light .card {
  background-color: var(--color-card-light);
}

.work-card:hover,
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* =========================
   CONTACT FORM
   ========================= */
.contact-form {
  max-width: 420px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  text-align: left;
}

label {
  font-size: 0.9rem;
  margin-bottom: 4px;
  display: block;
}

input,
textarea {
  width: 100%;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: none;
  font-family: inherit;
}

body.light input,
body.light textarea {
  background-color: #ffffff;
  color: var(--color-text-light);
}

textarea {
  resize: vertical;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  font-weight: 600;
  padding: 12px;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  opacity: 0.85;
}

/* =========================
   FOOTER
   ========================= */
.site-footer {
  text-align: center;
  padding: 20px;
  opacity: 0.7;
  font-size: 0.9rem;
}

/* =========================
   ANIMATIONS
   ========================= */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate.fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
    gap: 10px;
  }

  .nav-links {
    gap: 12px;
  }

  section {
    padding: 40px 10px;
  }
}
.hero {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 60px 20px;
  flex-wrap: wrap;
}

.hero-content {
  flex: 1 1 400px;
  text-align: left;
}

.hero-image {
  flex: 1 1 300px;
  text-align: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}