/* ============================================
   style.css — Global Styles
   Author: Muhammad Khuzaima
   Theme: Dark Glassmorphism (Cyan / Blue)
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Dark theme (default) */
  --bg: #0a0a0f;
  --bg-2: #0d0d18;
  --glass: rgba(255, 255, 255, 0.05);
  --glass-strong: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-hover: rgba(0, 245, 255, 0.4);

  --primary: #00f5ff;          /* Electric Cyan */
  --secondary: #4f6ef7;        /* Electric Blue */
  --gradient: linear-gradient(135deg, #00f5ff 0%, #4f6ef7 100%);
  --gradient-soft: linear-gradient(135deg, rgba(0,245,255,0.15) 0%, rgba(79,110,247,0.15) 100%);

  --text: #ffffff;
  --text-2: rgba(255, 255, 255, 0.6);
  --text-3: rgba(255, 255, 255, 0.4);

  --fiverr: #1dbf73;
  --github: #181717;

  --radius: 18px;
  --radius-sm: 10px;

  --shadow-cyan: 0 0 30px rgba(0, 245, 255, 0.25);
  --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.4);

  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  /* Theming tokens (re-used in many components) */
  --navbar-bg: rgba(10, 10, 15, 0.4);
  --navbar-bg-scroll: rgba(10, 10, 15, 0.75);
  --footer-bg: rgba(10, 10, 15, 0.6);
  --section-stats-bg: rgba(10, 10, 15, 0.4);
  --input-bg: rgba(255, 255, 255, 0.03);
  --input-focus-bg: rgba(0, 245, 255, 0.04);
  --input-focus-shadow: rgba(0, 245, 255, 0.1);
  --skill-bar-bg: rgba(255, 255, 255, 0.06);
  --noise-opacity: 0.04;
  --blob-opacity: 1;
  --hero-shadow: rgba(0,0,0,0.4);
  --card-shadow: rgba(0,0,0,0.4);
  --code-key: var(--primary);
  --code-str: #f0c674;
  --code-num: var(--secondary);
  --code-com: var(--text-3);
  --code-line-hover-bg: transparent;
  --select-option-bg: #0a0a0f;
  --dropdown-arrow-color: '%2300f5ff';
  --tag-bg: rgba(0, 245, 255, 0.08);
  --tag-border: rgba(0, 245, 255, 0.2);
  --mascot-hood: #0a0a0f;
  --mascot-hood-glow: rgba(0,245,255,0.15);
  --orbit-bg: rgba(255,255,255,0.05);
  --scrollbar-bg: var(--bg);
  --scrollbar-thumb: var(--gradient);
}

/* Light theme overrides */
[data-theme="light"] {
  --bg: #f4f7fb;
  --bg-2: #ffffff;
  --glass: rgba(255, 255, 255, 0.7);
  --glass-strong: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(10, 10, 30, 0.1);
  --glass-border-hover: rgba(0, 184, 196, 0.5);

  --primary: #0098a8;          /* Darker cyan for AAA contrast on light */
  --secondary: #3d5ae8;
  --gradient: linear-gradient(135deg, #0098a8 0%, #3d5ae8 100%);
  --gradient-soft: linear-gradient(135deg, rgba(0,152,168,0.12) 0%, rgba(61,90,232,0.12) 100%);

  --text: #0f1422;
  --text-2: rgba(15, 20, 34, 0.7);
  --text-3: rgba(15, 20, 34, 0.45);

  --shadow-cyan: 0 0 30px rgba(0, 152, 168, 0.2);
  --shadow-card: 0 10px 40px rgba(10, 10, 30, 0.08);

  --navbar-bg: rgba(255, 255, 255, 0.75);
  --navbar-bg-scroll: rgba(255, 255, 255, 0.92);
  --footer-bg: rgba(255, 255, 255, 0.7);
  --section-stats-bg: rgba(255, 255, 255, 0.5);
  --input-bg: rgba(255, 255, 255, 0.9);
  --input-focus-bg: rgba(0, 152, 168, 0.05);
  --input-focus-shadow: rgba(0, 152, 168, 0.15);
  --skill-bar-bg: rgba(10, 10, 30, 0.08);
  --noise-opacity: 0.02;
  --blob-opacity: 0.55;
  --hero-shadow: rgba(10, 10, 30, 0.06);
  --card-shadow: rgba(10, 10, 30, 0.08);
  --code-key: #0098a8;
  --code-str: #b07a1f;
  --code-num: #3d5ae8;
  --code-com: rgba(15, 20, 34, 0.45);
  --code-line-hover-bg: rgba(0, 152, 168, 0.04);
  --select-option-bg: #ffffff;
  --dropdown-arrow-color: '%230098a8';
  --tag-bg: rgba(0, 152, 168, 0.1);
  --tag-border: rgba(0, 152, 168, 0.3);
  --mascot-hood: #0a0a0f;          /* keep dark hood — part of character design */
  --mascot-hood-glow: rgba(0,245,255,0.25);
  --orbit-bg: rgba(255, 255, 255, 0.85);
  --scrollbar-bg: #e5eaf2;
  --scrollbar-thumb: linear-gradient(135deg, #0098a8 0%, #3d5ae8 100%);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.5s ease, color 0.5s ease;
}

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: var(--noise-opacity);
  pointer-events: none;
  z-index: 1;
}

/* Slow animated gradient background */
body::after {
  content: '';
  position: fixed;
  inset: -20%;
  background:
    radial-gradient(circle at 20% 30%, rgba(0,245,255,0.08) 0%, transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(79,110,247,0.08) 0%, transparent 35%),
    radial-gradient(circle at 50% 50%, rgba(0,245,255,0.03) 0%, transparent 50%);
  z-index: 0;
  animation: bgShift 20s ease-in-out infinite;
  pointer-events: none;
  opacity: var(--blob-opacity);
}

main, nav, footer, header { position: relative; z-index: 2; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p  { color: var(--text-2); }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* Gradient text */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Layout Helpers ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 100px 0; position: relative; }

.section-title {
  text-align: center;
  margin-bottom: 60px;
}
.section-title .tag {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-title h2 { margin-bottom: 14px; }
.section-title p { max-width: 600px; margin: 0 auto; }

/* ---------- Glass Card ---------- */
.glass {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.glass:hover {
  border-color: var(--glass-border-hover);
  box-shadow: 0 0 30px rgba(0, 245, 255, 0.15);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  font-family: var(--font-body);
  letter-spacing: 0.02em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px) scale(1.03); }

.btn-primary {
  background: var(--gradient);
  color: #001018;
  box-shadow: 0 6px 25px rgba(0, 245, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 40px rgba(0, 245, 255, 0.55); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--glass-border);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 20px rgba(0, 245, 255, 0.2);
}

.btn-fiverr {
  background: var(--fiverr);
  color: #fff;
  box-shadow: 0 6px 25px rgba(29, 191, 115, 0.35);
}
.btn-fiverr:hover { box-shadow: 0 10px 40px rgba(29, 191, 115, 0.55); }

.btn-behance {
  background: #0057ff;
  color: #fff;
  box-shadow: 0 6px 25px rgba(0, 87, 255, 0.4);
}
.btn-behance:hover { box-shadow: 0 10px 40px rgba(0, 87, 255, 0.6); }

.btn-github {
  background: #111;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.5);
}
.btn-github:hover { box-shadow: 0 0 25px rgba(0, 245, 255, 0.4); border-color: var(--primary); }

.btn-sm { padding: 10px 18px; font-size: 0.85rem; }

/* PNG icons inside buttons (project links etc.) */
.btn img {
  width: 16px;
  height: 16px;
  object-fit: contain;
  flex-shrink: 0;
  vertical-align: middle;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all 0.35s ease;
  background: var(--navbar-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  padding: 12px 0;
  background: var(--navbar-bg-scroll);
  border-bottom: 1px solid var(--glass-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

/* ---------- Theme toggle button ---------- */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--primary);
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.3);
  transform: rotate(15deg);
}
.theme-toggle svg {
  position: absolute;
  width: 20px;
  height: 20px;
  stroke: var(--text);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55),
              opacity 0.4s ease;
}
.theme-toggle .icon-sun {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}
.theme-toggle .icon-moon {
  transform: rotate(-90deg) scale(0.5);
  opacity: 0;
}
[data-theme="light"] .theme-toggle .icon-sun {
  transform: rotate(90deg) scale(0.5);
  opacity: 0;
}
[data-theme="light"] .theme-toggle .icon-moon {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}
[data-theme="light"] .theme-toggle {
  background: linear-gradient(135deg, rgba(0,152,168,0.15), rgba(61,90,232,0.15));
}
.nav-links a {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 0;
  transition: color 0.25s ease;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: width 0.3s ease;
  box-shadow: 0 0 10px var(--primary);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  z-index: 110;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  top: 0; right: 0;
  width: 280px;
  height: 100vh;
  background: var(--bg);
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-left: 1px solid var(--glass-border);
  padding: 100px 30px 30px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.4s ease;
  z-index: 99;
}
[data-theme="light"] .mobile-drawer {
  background: rgba(255, 255, 255, 0.97);
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer ul { list-style: none; display: flex; flex-direction: column; gap: 24px; }
.mobile-drawer a {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--text);
}
.mobile-drawer a:hover, .mobile-drawer a.active { color: var(--primary); }

/* ---------- FOOTER ---------- */
footer {
  position: relative;
  background: var(--footer-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 24px;
  margin-top: 80px;
}
footer::before {
  content: '';
  position: absolute;
  top: -1px; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  max-width: 500px;
  height: 1px;
  background: var(--gradient);
  box-shadow: 0 0 15px var(--primary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}
.footer-brand p { font-size: 0.95rem; max-width: 320px; }
.footer-col h4 {
  font-family: var(--font-head);
  font-size: 1rem;
  margin-bottom: 18px;
  color: var(--text);
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  color: var(--text-2);
  font-size: 0.95rem;
  transition: color 0.25s ease;
}
.footer-col a:hover { color: var(--primary); }
/* ---------- Social icon buttons (footer + contact) ---------- */
.footer-socials,
.social-icons {
  display: flex;
  gap: 12px;
  align-items: center;
}
.footer-socials a,
.social-icons a {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0d0d0d;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  color: #ffffff;
  flex-shrink: 0;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
}
.footer-socials svg,
.social-icons svg {
  width: 26px;
  height: 26px;
  display: block;
  flex-shrink: 0;
  fill: #ffffff;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.footer-socials a:hover,
.social-icons a:hover {
  background: #1a1a1a;
  transform: translateY(-3px) scale(1.08);
}
.footer-socials a:active,
.social-icons a:active {
  transform: scale(0.95);
  transition-duration: 0.1s;
}
.footer-socials a:hover svg,
.social-icons a:hover svg {
  transform: scale(1.04);
}

/* Per-platform brand glow on hover */
.footer-socials a.s-github:hover,
.social-icons a.s-github:hover {
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), 0 0 20px rgba(255, 255, 255, 0.18);
}
.footer-socials a.s-fiverr:hover,
.social-icons a.s-fiverr:hover {
  border-color: rgba(29, 191, 115, 0.5);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), 0 0 20px rgba(29, 191, 115, 0.35);
}
.footer-socials a.s-linkedin:hover,
.social-icons a.s-linkedin:hover {
  border-color: rgba(0, 119, 181, 0.5);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 119, 181, 0.35);
}
.footer-socials a.s-behance:hover,
.social-icons a.s-behance:hover {
  border-color: rgba(23, 105, 255, 0.5);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), 0 0 20px rgba(23, 105, 255, 0.35);
}
.footer-socials a:hover {
  transform: translateY(-3px) scale(1.08);
  background: #1a1a1a;
  border-color: rgba(255,255,255,0.15);
}
.footer-socials a:active {
  transform: scale(0.95);
}
.footer-socials a[data-platform="github"]:hover {
  box-shadow: 0 4px 20px rgba(255,255,255,0.2);
}
.footer-socials a[data-platform="fiverr"]:hover {
  box-shadow: 0 4px 20px rgba(29,191,115,0.4);
}
.footer-socials a[data-platform="linkedin"]:hover {
  box-shadow: 0 4px 20px rgba(0,119,181,0.4);
}
.footer-socials a[data-platform="behance"]:hover {
  box-shadow: 0 4px 20px rgba(23,105,255,0.4);
}
.footer-socials svg {
  width: 26px; height: 26px;
  display: block;
  flex-shrink: 0;
  fill: #ffffff;
  text-rendering: geometricPrecision;
  shape-rendering: geometricPrecision;
  overflow: visible;
}

/* === NEW SOCIAL BUTTON DESIGN === */
.social-icons a.github-btn,
.social-icons a.fiverr-btn,
.social-icons a.linkedin-btn,
.social-icons a.behance-btn,
.footer-socials a.github-btn,
.footer-socials a.fiverr-btn,
.footer-socials a.linkedin-btn,
.footer-socials a.behance-btn {
  background: #111118;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.social-icons a.github-btn,
.social-icons a.fiverr-btn,
.social-icons a.linkedin-btn,
.social-icons a.behance-btn {
  width: 52px;
  height: 52px;
}

.footer-socials a.github-btn,
.footer-socials a.fiverr-btn,
.footer-socials a.linkedin-btn,
.footer-socials a.behance-btn {
  width: 40px;
  height: 40px;
}

.social-icons a.github-btn svg,
.social-icons a.linkedin-btn svg,
.footer-socials a.github-btn svg,
.footer-socials a.linkedin-btn svg {
  width: 24px;
  height: 24px;
}

.social-icons a.github-btn:hover,
.footer-socials a.github-btn:hover {
  background: #111118;
  border-color: #fff;
  box-shadow: 0 0 12px rgba(255,255,255,0.3);
  transform: translateY(-3px) scale(1.08);
}
.social-icons a.fiverr-btn:hover,
.footer-socials a.fiverr-btn:hover {
  background: #111118;
  border-color: #1dbf73;
  box-shadow: 0 0 12px rgba(29,191,115,0.4);
  transform: translateY(-3px) scale(1.08);
}
.social-icons a.linkedin-btn:hover,
.footer-socials a.linkedin-btn:hover {
  background: #111118;
  border-color: #0077b5;
  box-shadow: 0 0 12px rgba(0,119,181,0.4);
  transform: translateY(-3px) scale(1.08);
}
.social-icons a.behance-btn:hover,
.footer-socials a.behance-btn:hover {
  background: #111118;
  border-color: #1769ff;
  box-shadow: 0 0 12px rgba(23,105,255,0.4);
  transform: translateY(-3px) scale(1.08);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-3);
  font-size: 0.85rem;
}

/* ---------- Custom Cursor (desktop) ---------- */
.cursor-dot,
.cursor-trail {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}
.cursor-dot {
  width: 8px; height: 8px;
  background: var(--primary);
  box-shadow: 0 0 15px var(--primary);
  transition: transform 0.05s linear, width 0.2s ease, height 0.2s ease;
}
.cursor-trail {
  width: 32px; height: 32px;
  border: 1.5px solid var(--primary);
  transition: transform 0.18s ease-out, width 0.25s ease, height 0.25s ease, opacity 0.25s ease;
  opacity: 0.7;
}
.cursor-dot.hover { width: 14px; height: 14px; }
.cursor-trail.hover { width: 50px; height: 50px; opacity: 1; }
body.no-cursor, body.no-cursor * { cursor: none !important; }

/* ---------- Scroll Reveal (hidden state) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Selection ---------- */
::selection { background: var(--primary); color: #001018; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--scrollbar-bg); }
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 10px;
}

/* ---------- Theme transition smoothing ---------- */
.glass, .nav-links a, .btn, .form-group input,
.form-group select, .form-group textarea, .tool-icon,
.project-card, .approach-card, .stat-num, .hero-tag,
.footer-col a, .info-row a, .code-block .line, .tech-tag,
.orbit-badge-inner, .skill-bar-fill, .nav-logo, .logo,
.footer-bottom, .footer-col h4, .footer-brand p,
.hero-title, h1, h2, h3, h4, p, a, span, small, label {
  transition: background-color 0.4s ease, color 0.4s ease,
              border-color 0.4s ease, box-shadow 0.4s ease;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; text-align: center; }
  .footer-brand p { margin: 0 auto; }
  .footer-socials { justify-content: center; }
  /* Keep theme toggle visible on mobile but smaller */
  .theme-toggle { width: 38px; height: 38px; }
  .theme-toggle svg { width: 18px; height: 18px; }
}
@media (max-width: 480px) {
  section { padding: 70px 0; }
  .container { padding: 0 18px; }
  .btn { padding: 12px 22px; font-size: 0.9rem; }
}