:root {
  --primary: #6D28D9;
  --primary-dark: #4C1D95;
  --bg-dark: #0a0a0a;
  --bg-card: transparent; /* default transparent card background */
  --text-main: #ffffff;
  --text-muted: #a3a3b8;      /* same as #94a3b8 */
  --border-color: rgba(255,255,255,0.2); /* card border in dark theme */
  --icon-bg: rgba(255,255,255,0.05);    /* icon box background */
  --icon-border: rgba(255,255,255,0.15); /* icon box border */
  --subtitle-color: #94a3b8; /* for dark theme */
  --card-border: rgba(255, 255, 255, 0.2);   /* dark theme border */
  --card-hover-border: rgba(255, 255, 255, 0.4);
  --card-hover-bg: rgba(255, 255, 255, 0.05);
  --text-h1: linear-gradient(to right, #ffffff, #a78bfa);
  --nav-a: white;
  --navbar: rgba(0, 0, 0, 0.8);
}
body.light-theme {
  --bg-dark: #ffffff;
  --bg-card: #f5f5f5;
  --text-main: #1a1a1a;
  --text-muted: #4b5563;
  --border-color: rgba(0,0,0,0.1);
  --icon-bg: rgba(0,0,0,0.05);
  --icon-border: rgba(0,0,0,0.15);
  --subtitle-color: #6b7280; /* slightly darker for light theme */
  --bg-card: rgba(245, 245, 245, 0.6);   /* transparent light card background */
  --card-border: rgba(162, 0, 255, 0.384);     /* dark border for light theme */
  --card-hover-border: rgba(0, 0, 0, 0.2);
  --card-hover-bg: rgba(0, 0, 0, 0.04);
  --text-h1: linear-gradient(to right, #1a1a1a, #7c3aed);
  --nav-a: black;
  --navbar: rgba(197, 194, 194, 0.8);
}
  * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  top: 50%;
  left: 50%;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: 
    radial-gradient(circle, rgba(109,40,217,0.15) 0%, rgba(109,40,217,0.05) 70%, transparent 100%),
    repeating-radial-gradient(
      circle,
      rgba(255,255,255,0.02) 0px,
      rgba(255,255,255,0.02) 2px,
      transparent 2px,
      transparent 4px
    );
  transform: translate(-50%, -50%) scale(var(--circle-scale, 1));
  z-index: -1;
  pointer-events: none;
  transition: transform 0.1s ease-out;
  filter: blur(40px); /* smooth glow + soft edges */
}
#theme-toggle {
  position: fixed;       /* stays on screen */
  bottom: 20px;          /* distance from bottom */
  left: 20px;            /* distance from left */
  background: transparent; /* violet */
  color: var(--primary);           /* white icon */
  border: 2px solid var(--primary);
  padding: 20px;         /* size */
  border-radius: 50%;    /* circle */
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;     /* icon size */
  z-index: 10000;        /* always on top */
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: background 0.3s ease, transform 0.2s;
}
#theme-toggle:hover {
  background: var(--primary-dark); /* darker violet */
  transform: scale(1.1);
}
.card-icon {
  width: 50px;
  height: 50px;
  background-color: rgba(59, 130, 246, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}
/* Typography */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.2;
}
p, .login-text, .subtitle, .card-content p {
  color: var(--text-muted);
}
a, .nav-links a {
  color: var(--text-muted);
}
.btn-primary, .btn-secondary, .btn-projects {
  color: var(--text-main);
}
h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
p { color: var(--text-muted); margin-bottom: 1.5rem; }
/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--navbar);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo span { color: var(--primary); }

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
}
.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
}
.nav-links a .active {
  display: flex;
  border-bottom: 2px solid var(--primary);
  flex-direction: column;
}
.btn-group {
  display: flex;
  gap: 16px;
}
.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
  padding: 12px 20px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.2s;
}
.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 12px 20px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.2s;
}
.btn-secondary:hover {
  background-color: var(--primary-dark);
  color: white;
  border: 2px solid var(--primary-dark);
  transform: translateY(-1px);
}
.btn-center {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}
.btn-projects {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 12px 22px;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition:
    background-color 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease,
    transform 0.2s ease,
    box-shadow 0.3s ease;
}
/* Hover effect */
.btn-projects:hover {
  background-color: var(--primary-dark);
  color: #fff;
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(138, 43, 226, 0.7);
}
.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
}
/* ================================
    LOGIN SECTION / FIRST SECTION
================================ */
.login {
  min-height: 100vh;
  padding: 120px 60px;
  color: #fff;
}
.login-container {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
}
.login-left h1 {
  font-size: 52px;
  line-height: 1.15;
  margin-bottom: 20px;
}
.login-left h1 span {
  color: var(--primary);
}
.login-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.login-tags span {
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  color: #7C3AED;
  font-size: 14px;
}
.login-buttons {
  display: flex;
  gap: 16px;
}
/* login Right Section */
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 30px;
  transition: all 0.3s ease;
}
.login-card-header {
  text-align: center;
  margin-bottom: 24px;
}
.subtitle {
  color: var(--subtitle-color);  /* now theme-aware */
  font-size: 14px;
}
.error_message {
  padding: 12px;
  background: white;
  border-radius: 6px;
  font-size: 16px;
  color: #a42834;
  text-align: center;
  margin-bottom: 20px;
}
/* ================================
    LOGIN FORM (login CARD)
================================ */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-group label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: block;
}
.form-group input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  color: #fff;
  outline: none;
  transition: all 0.2s ease;
}
.form-group input:focus {
  border-color: var(--primary);
  background: rgba(255,255,255,0.06);
}
/* ================================
   REVIEWS SLIDER — FINAL FIX
================================ */
.reviews-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 2rem;
  border-radius: 24px;
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  overflow: hidden;
  position: relative;
}
/* Light theme */
body.light-theme .reviews-container {
  background: linear-gradient(135deg, #f5f5f5, #e5e5e5);
}
/* Title */
.reviews-container .title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 3rem;
  background: linear-gradient(to right, #7c3aed, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
/* Slider */
.slider-wrapper {
  width: 100%;
  overflow: hidden;
}
.slider-track {
  display: flex;
  width: max-content;
  gap: 2rem;
  animation: reviews-scroll 30s linear infinite;
}
.slider-track:hover {
  animation-play-state: paused;
}
.review-card {
  flex: 0 0 380px;
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 1.8rem;
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease;
}
.review-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
}
/* Header */
.review-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--icon-bg);
  border: 2px solid var(--icon-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
}
/* Text */
.name {
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0px;
}
.role {
  margin-top: -2px;
  font-size: 10px;
  line-height: 1;
  color: var(--text-main);
}
.role i {
  font-size: 13px;
  color: #7c4dff; /* icon color */
}
.comment {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.stars {
  color: #fbbf24;
  margin: 0.7rem 0;
  letter-spacing: 2px;
}
/* Animation */
@keyframes reviews-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}
/* ================================
     TRUSTED WORLDWIDE SECTIOM
================================ */
.trusted {
  min-height: 100vh;
  padding: 80px 40px;
  text-align: center;
  background: var(--bg-card);
}
.badge {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid #8a2be2;
  color: #b98cff;
  font-size: 14px;
  margin-bottom: 24px;
}
h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
}
h1 span {
  background: linear-gradient(90deg, #8a2be2, #c084fc);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: auto;
}
.card {
  background: var(--bg-card);
  border: 1px solid rgba(138, 43, 226, 0.25);
  border-radius: 14px;
  padding: 30px;
  transition: 0.3s ease;
}
.card:hover {
  border-color: #8a2be2;
  transform: translateY(-6px);
  box-shadow: 0 0 25px rgba(138, 43, 226, 0.25);
}
.card h2 {
  font-size: 36px;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.card span {
  font-size: 15px;
  color: #a6a6c2;
}
/* Mobile */
@media (max-width: 768px) {
  .review-card {
    flex: 0 0 300px;
  }
}
/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--bg-card);
  padding: 5rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}
.footer-brand {
  max-width: 350px;
}
.footer-logo {
  color: var(--text-main);
  font-size: 1.75rem;
  font-family: var(--font-heading);
  font-weight: 900;
  margin-bottom: 1rem;
  margin-left: 3rem;
  display: inline-block;
}
.footer-logo span { color: var(--primary); }

.footer-tagline {
  line-height: 1.6;
  color: var(--text-muted);
  margin-left: 3rem;
}
.footer-column h3 {
  color: var(--text-main);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-body);
  font-weight: 600;
}
.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  list-style: none;
}
.footer-column a {
  transition: all 0.2s;
  align-items: center;
  gap: 0.6rem;
  display: flex;
  text-decoration: none;
}
.footer-column a:hover {
  color: var(--color-primary);
  transform: translateX(5px);
}
.footer-bottom {
  text-align: center;
  padding-top: 3rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  font-size: 0.9rem;
  color: #64748b;
}
/* ================================
   MOBILE RESONSIVENESS
================================ */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  
  .hamburger { display: block; }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--navbar);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .nav-links.active {
    transform: translateY(0);
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .hero-container {
    grid-template-columns: 1fr;
  }
  .hero-left h1 {
    font-size: 40px;
  }
}
/* ================================
   MOBILE RESPONSIVE (LOGIN / REGISTER)
================================ */
@media (max-width: 1024px) {
  .login-container {
    gap: 40px;
  }
  .login-text-side h1 {
    font-size: 44px;
  }
}

@media (max-width: 768px) {
  .login {
    padding: 100px 24px;
  }
  .login-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  /* TEXT GOES FIRST */
  .login-text-side {
    order: 1;
    text-align: center;
  }
  .login-text-side h1 {
    font-size: 36px;
  }
  .login-text {
    margin-left: auto;
    margin-right: auto;
  }
  .login-tags {
    justify-content: center;
  }
  .btn-group {
    justify-content: center;
    flex-wrap: wrap;
  }
  /* CARD SECOND */
  .login-left {
    order: 2;
    justify-content: center;
  }
  .login-card {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .login {
    padding: 90px 18px;
  }
  .login-text-side h1 {
    font-size: 30px;
  }
  .login-card {
    padding: 24px;
    border-radius: 16px;
  }
  .form-group input {
    padding: 11px 12px;
  }
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
  .btn-group {
    gap: 10px;
  }
}