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

/* LIGHT THEME (default) */
[data-theme="light"] {
  --primary: #6d28d9;
  --primary-light: #7c3aed;
  --primary-dark: #4c1d95;
  --accent: #d97706;
  --accent2: #db2777;
  --bg: #f8f5ff;
  --bg2: #ede9fe;
  --bg3: #ddd6fe;
  --text: #1e1b4b;
  --text-muted: #6b5fa6;
  --card: rgba(255, 255, 255, 0.92);
  --card-hover: #ffffff;
  --card-border: rgba(109, 40, 217, 0.18);
  --nav-bg: rgba(248, 245, 255, 0.95);
  --shadow: rgba(109, 40, 217, 0.14);
  --mock-bg: #ffffff;
  --ledger-border: rgba(109, 40, 217, 0.08);
  --toggle-bg: #ddd6fe;
  --footer-bg: #ede9fe;
  --gradient: linear-gradient(135deg, #6d28d9 0%, #db2777 100%);
  --gradient2: linear-gradient(135deg, #d97706 0%, #db2777 100%);
  --green-bg: #dcfce7;
  --pink-bg: #fce7f3;
  --purple-bg: #ede9fe;
  --amber-bg: #fef3c7;
}

/* DARK THEME */
[data-theme="dark"] {
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark: #5b21b6;
  --accent: #f59e0b;
  --accent2: #ec4899;
  --bg: #0f0a1e;
  --bg2: #1a1133;
  --bg3: #241848;
  --text: #f3f0ff;
  --text-muted: #a89ec9;
  --card: rgba(255, 255, 255, 0.05);
  --card-hover: rgba(255, 255, 255, 0.09);
  --card-border: rgba(124, 58, 237, 0.28);
  --nav-bg: rgba(15, 10, 30, 0.9);
  --shadow: rgba(124, 58, 237, 0.28);
  --mock-bg: #1a1133;
  --ledger-border: rgba(255, 255, 255, 0.06);
  --toggle-bg: #241848;
  --footer-bg: #1a1133;
  --gradient: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --gradient2: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
  --green-bg: rgba(16, 185, 129, 0.12);
  --pink-bg: rgba(236, 72, 153, 0.12);
  --purple-bg: rgba(124, 58, 237, 0.12);
  --amber-bg: rgba(245, 158, 11, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  transition:
    background 0.4s,
    color 0.4s;
}

/* NAVBAR */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 5%;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--card-border);
  transition: all 0.3s;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: transform 0.3s;
}

.nav-brand-logo {
  height: 48px;
  width: auto;
  max-width: 210px;
  object-fit: contain;
  transition:
    transform 0.3s,
    filter 0.3s;
}

.nav-logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.1);
}

.nav-logo:hover .nav-brand-logo {
  transform: scale(1.04);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-name {
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-gift-txt {
  color: var(--primary);
}

.logo-khata-txt {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-sub {
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  -webkit-text-fill-color: var(--text-muted);
}

.nav-links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary);
}

@media (max-width: 768px) {
  .nav-brand-logo {
    height: 38px;
    max-width: 170px;
  }
}

@media (max-width: 480px) {
  .nav-brand-logo {
    height: 34px;
    max-width: 150px;
  }
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.theme-toggle {
  width: 48px;
  height: 27px;
  background: var(--toggle-bg);
  border-radius: 50px;
  border: 1.5px solid var(--card-border);
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  padding: 2px;
  transition: background 0.4s;
  flex-shrink: 0;
}

.toggle-thumb {
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .toggle-thumb {
  transform: translateX(0);
}

[data-theme="light"] .toggle-thumb {
  transform: translateX(21px);
}

.nav-cta {
  background: var(--gradient);
  border: none;
  border-radius: 25px;
  color: #fff;
  padding: 0.55rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  font-family: "Poppins", sans-serif;
  text-decoration: none;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--card-border);
  padding: 1rem 5%;
  gap: 0.5rem;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 998;
  box-shadow: 0 8px 24px var(--shadow);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--card-border);
}

.mobile-menu a:last-child {
  border-bottom: none;
}