/* Enhanced, Premium, Eye-Friendly Palette and Design */

:root {
  --bg-dark: #181825;
  --surface: #232946;
  --primary: #E9B44C;
  --primary-hover: #b99425;
  --secondary: #F9F9F9;
  --accent: #395B50;
  --card-bg: #202337;
  --text-main: #F4F4F4;
  --text-muted: #bcbcbc;
  --nav-link: #E9B44C;
  --nav-link-hover: #395B50;
  --blockquote-bg: #232946;
  --card-shadow: 0 4px 30px rgba(57, 91, 80, 0.15);
  --gradient: linear-gradient(135deg, #181825 0%, #232946 100%);
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--gradient);
  color: var(--text-main);
  line-height: 1.7;
  min-height: 100vh;
  transition: background 0.3s;
}

body.light-mode {
  --bg-dark: #F9F9F9;
  --surface: #ffffff;
  --primary: #E9B44C;
  --primary-hover: #b99425;
  --secondary: #232946;
  --accent: #395B50;
  --card-bg: #F6F7FA;
  --text-main: #232946;
  --text-muted: #888;
  --nav-link: #395B50;
  --nav-link-hover: #E9B44C;
  --blockquote-bg: #F6F7FA;
  --card-shadow: 0 4px 30px rgba(233, 180, 76, 0.15);
  --gradient: linear-gradient(135deg, #F9F9F9 0%, #eaeaea 100%);
  background: var(--gradient);
}

header {
  padding: 7vh 10vw 5vh 10vw;
  text-align: center;
  background: var(--surface);
  color: var(--primary);
  box-shadow: 0 8px 32px rgba(57, 91, 80, 0.07);
}

.hero-title {
  font-size: 2.8rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-shadow: 0 2px 20px rgba(233, 180, 76, 0.08);
}

.hero-sub {
  font-size: 1.3rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.cta-button {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.9rem 2rem;
  background: var(--primary);
  color: var(--surface);
  border: none;
  border-radius: 7px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(233, 180, 76, 0.08);
  transition: background 0.3s, box-shadow 0.2s, color 0.3s;
}

.cta-button:hover, .cta-button:focus {
  background: var(--primary-hover);
  color: var(--secondary);
  box-shadow: 0 4px 16px rgba(233, 180, 76, 0.15);
}

.theme-toggle {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: var(--primary);
  color: var(--surface);
  border: none;
  border-radius: 50%;
  width: 2.6rem;
  height: 2.6rem;
  font-size: 1.35rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(233, 180, 76, 0.10);
  transition: background 0.3s;
  z-index: 10;
}

.theme-toggle:hover {
  background: var(--primary-hover);
}

nav {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  padding: 1.2rem;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--surface);
  position: sticky;
  top: 0;
  z-index: 9;
  box-shadow: 0 2px 8px rgba(57, 91, 80, 0.07);
}

nav a {
  color: var(--nav-link);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  transition: color 0.3s;
  position: relative;
}

nav a:hover, nav a.active {
  color: var(--nav-link-hover);
  text-shadow: 0 1px 8px var(--primary);
}

section {
  padding: 7vh 10vw 6vh 10vw;
  background: transparent;
}

h2 {
  font-size: 2.1rem;
  margin-bottom: 1.2rem;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 1.2px;
}

ul li {
  margin-bottom: 0.8rem;
  list-style: none;
  font-size: 1.1rem;
}

.portfolio-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: 2.4rem;
}

.card {
  background: var(--card-bg);
  padding: 2.5rem 1.4rem;
  border-radius: 12px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.3s, transform 0.3s, background 0.3s;
  cursor: pointer;
  color: var(--text-main);
  font-size: 1.13rem;
}

.card:hover, .card:focus {
  box-shadow: 0 0 20px var(--primary), 0 4px 30px rgba(233,180,76,0.12);
  transform: translateY(-6px) scale(1.03);
  background: var(--surface);
}

blockquote {
  background: var(--blockquote-bg);
  padding: 1.8rem 1.3rem;
  border-left: 4px solid var(--primary);
  margin: 1.2rem 0;
  font-style: italic;
  color: var(--text-main);
  border-radius: 6px;
  box-shadow: 0 2px 12px rgba(233,180,76,0.07);
}

form input, form button {
  padding: 0.85rem;
  margin: 0.6rem 0;
  border-radius: 6px;
  border: none;
  font-size: 1.08rem;
}

form input {
  width: 100%;
  background: var(--surface);
  color: var(--accent);
  border: 1px solid var(--primary);
  transition: border 0.3s;
}

form input:focus {
  border: 2px solid var(--primary-hover);
  outline: none;
}

form button {
  background: var(--primary);
  color: var(--surface);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}

form button:hover, form button:focus {
  background: var(--primary-hover);
  color: var(--secondary);
}

footer {
  text-align: center;
  padding: 2.3rem;
  background: var(--bg-dark);
  border-top: 1px solid var(--surface);
  color: var(--text-muted);
  font-size: 1rem;
  letter-spacing: 0.5px;
}

/* Scroll animation */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(.39,.58,.57,1), transform 0.7s cubic-bezier(.39,.58,.57,1);
}

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

/* Responsive Design */
@media (max-width: 900px) {
  header, section {
    padding: 7vh 4vw 5vh 4vw;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* Custom Scrollbar for premium feel */
body::-webkit-scrollbar {
  width: 10px;
  background: var(--bg-dark);
}
body::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 5px;
}