/* ============================
   Base / Theme
============================ */
:root {
  --color-primary: #4D96FF;
  --color-accent: #4D96FF;
  --color-bg: #fdfdfd;
  --color-bg-alt: #f6f7fb;
  --text-color: #2b2b2b;
  --muted: #6b7280;
  --shadow: rgba(0,0,0,0.12);
  --transition: 0.3s ease;
  --radius: 14px;
  --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

:root[data-theme="dark"] {
  --color-bg: #0f1115;
  --color-bg-alt: #141821;
  --text-color: #e8e8ea;
  --muted: #a3a3b2;
  --shadow: rgba(0,0,0,0.5);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

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

html, body { height: 100%; }

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--text-color);
  line-height: 1.6;
}

/* ============================
   Typography / Links
============================ */
h1, h2, h3 {
  font-weight: 800;
  color: var(--text-color);
  letter-spacing: 0.2px;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 600;
  border: 2px solid var(--color-primary);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px var(--shadow); }
.btn-ghost { background: transparent; color: var(--color-primary); }
.btn-ghost:hover { background: var(--color-primary); color: #fff; }

/* ============================
   Layout
============================ */
.main-content {
  margin-left: 280px;
  padding: 48px;
  transition: padding var(--transition), margin var(--transition);
}

.section { margin-bottom: 96px; }

.section h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 16px;
  position: relative;
}
.section h2::after {
  content: '';
  display: block; width: 80px; height: 3px;
  background: var(--color-primary);
  margin: 12px auto 0; border-radius: 2px;
}

/* Reveal animation class (used by JS) */
.section { opacity: 0; transform: translateY(16px); transition: opacity var(--transition), transform var(--transition); }
.section.visible { opacity: 1; transform: translateY(0); }

/* ============================
   Sidebar
============================ */
.aside {
  width: 280px; position: fixed; top: 0; left: 0; height: 100%;
  background: var(--color-bg-alt); color: var(--text-color);
  padding: 36px 22px; box-shadow: 2px 0 18px var(--shadow); z-index: 1000;
}
.profile { text-align: center; margin-bottom: 24px; }
.profile-img {
  width: 120px; height: 120px; border-radius: 50%; object-fit: cover;
  margin-bottom: 12px; border: 4px solid var(--color-primary);
}
.profile h2 { font-size: 1.15rem; font-weight: 700; }

.nav { text-align: center; }
.nav-toggle { display: none; }

.nav ul { list-style: none; }
.nav-link {
  display: block; padding: 12px 0; font-size: 1rem; font-weight: 600; color: var(--muted);
  transition: color var(--transition);
}
.nav-link.active, .nav-link:hover { color: var(--color-accent); }

/* ============================
   Home
============================ */
.home-section {
  display: grid; place-items: center; min-height: 88vh; text-align: center;
}
.home-content h1 { font-size: clamp(2.1rem, 4vw, 3rem); margin-bottom: 10px; }
.name { color: var(--color-primary); }
.typing { font-size: 1.15rem; color: var(--color-accent); margin-top: 6px; }
.home-cta { margin-top: 24px; display: flex; gap: 12px; justify-content: center; }

/* ============================
   About
============================ */
.about-section { max-width: 820px; margin: auto; text-align: center; font-size: 1.075rem; color: var(--muted); }

/* ============================
   Services
============================ */
.services-list {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px; margin-top: 22px;
}
.service-card {
  background: var(--color-bg-alt); padding: 24px; border-radius: var(--radius);
  box-shadow: 0 8px 22px var(--shadow); text-align: center; transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 14px 28px var(--shadow); }
.service-icon { font-size: 1.9rem; margin-bottom: 12px; color: var(--color-primary); }
.service-card h3 { margin-bottom: 8px; font-size: 1.1rem; }

/* ============================
   Portfolio
============================ */
.portfolio-filters { text-align: center; margin-bottom: 26px; }
.filter-btn {
  background: transparent; border: 2px solid var(--color-primary); color: var(--color-primary);
  padding: 8px 16px; border-radius: 18px; margin: 6px; font-size: 0.95rem; font-weight: 600; cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.filter-btn:hover, .filter-btn.active { background: var(--color-primary); color: #fff; transform: translateY(-1px); }

.portfolio-gallery {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 26px;
}
.portfolio-item, .portfolio-item1 {
  background: var(--color-bg-alt); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 8px 22px var(--shadow); transition: transform var(--transition), box-shadow var(--transition);
}
.portfolio-item:hover, .portfolio-item1:hover { transform: translateY(-6px); box-shadow: 0 16px 32px var(--shadow); }
.portfolio-item img, .portfolio-item1 img {
  width: 100%;
  height: auto;
  display: block;
}
.portfolio-item h3, .portfolio-item1 h3 { text-align: center; padding: 12px; font-size: 1rem; color: var(--text-color); }

/* ============================
   Contact
============================ */
.contact-section { max-width: 640px; margin: auto; }
.form-group { margin-bottom: 16px; }
label { display: block; margin-bottom: 8px; font-weight: 600; }
input, textarea {
  width: 100%; padding: 12px; border: 1px solid #e2e8f0; border-radius: 10px; outline: none;
  background: var(--color-bg); color: var(--text-color); transition: border var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(77,150,255,0.13); }

.btn-submit {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--color-primary); color: #fff; border: none; padding: 12px 20px; border-radius: 12px; cursor: pointer;
  font-size: 1rem; font-weight: 700; transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-submit:hover { background: #3b7cf5; transform: translateY(-2px); box-shadow: 0 12px 26px var(--shadow); }
.form-status { margin-top: 10px; font-size: 0.95rem; }

/* ============================
   Style Switcher (container only; component styles in style-switcher.css)
============================ */
.style-switcher { z-index: 11000; }

/* ============================
   Responsive
============================ */
@media (max-width: 980px) {
  .aside { width: 240px; }
  .main-content { margin-left: 240px; padding: 36px; }
}
@media (max-width: 768px) {
  .aside {
    position: fixed; width: 100%; height: auto; padding: 12px 16px;
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
  }
  .profile { display: flex; align-items: center; gap: 12px; margin: 0; }
  .profile-img { width: 48px; height: 48px; border: 2px solid var(--color-primary); }
  .nav { display: block; position: absolute; top: 64px; left: 0; right: 0; background: var(--color-bg-alt); max-height: 0; overflow: hidden; transition: max-height var(--transition); }
  .nav.open { max-height: 240px; }
  .nav-toggle { display: inline-flex; background: transparent; border: 0; color: var(--text-color); font-size: 1.4rem; cursor: pointer; }
  .main-content { margin-left: 0; padding: 24px; }
}

/* ============================
   Global image rule
============================ */
img {
  max-width: 100%;
  height: auto;
  display: block;
}