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

:root {
  --purple: #8019c8;
  --purple-dark: #6a14a8;
  --dark: #0c0c0c;
  --white: #ffffff;
  --gray: #f8f8f8;
  --text: #0c0c0c;
  --bg: #ffffff;
  --nav-bg: #ffffff;
  --nav-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.15);
  --dropdown-bg: #ffffff;
  --dropdown-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  --link-color: #000000;
  --link-hover-bg: #8019c8;
  --link-hover-color: #ffffff;
  --toggler-color: #000000;
  --card-bg: #ffffff;
  --card-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  --transition: 0.3s ease;
}

body:has(#darkToggle:checked) {
  --text: #e0e0e0;
  --bg: #1a1a2e;
  --nav-bg: #16213e;
  --nav-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.4);
  --dropdown-bg: #16213e;
  --dropdown-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  --link-color: #e0e0e0;
  --link-hover-bg: #8019c8;
  --link-hover-color: #ffffff;
  --toggler-color: #e0e0e0;
  --card-bg: #16213e;
  --card-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ===== HEADER ===== */
.header_section {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  box-shadow: var(--nav-shadow);
  transition: background var(--transition), box-shadow var(--transition);
}

.header_section .container-fluid {
  padding-right: 25px;
  padding-left: 25px;
}

/* ===== NAVBAR ===== */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  gap: 20px;
}

/* ===== LOGO ===== */
.navbar-brand {
  flex-shrink: 0;
}

.navbar-brand span {
  font-weight: bold;
  color: var(--purple);
  font-size: 24px;
  text-transform: uppercase;
  transition: color var(--transition);
}

@keyframes shrink-logo {
  from { font-size: 24px; }
  to   { font-size: 18px; }
}

.navbar-brand span {
  animation: shrink-logo linear both;
  animation-timeline: scroll(block root);
  animation-range: 0 80px;
}

.menu-input,
.dark-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== NAV ===== */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  margin: auto;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 5px 25px;
  color: var(--link-color);
  text-align: center;
  text-transform: uppercase;
  border-radius: 5px;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}

.nav-item:hover .nav-link,
.nav-item.active .nav-link {
  color: var(--link-hover-color);
  background-color: var(--link-hover-bg);
}

/* ===== DROPDOWN ===== */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: var(--dropdown-bg);
  box-shadow: var(--dropdown-shadow);
  border-radius: 5px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 100;
}

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  color: var(--text);
  font-size: 14px;
  transition: all var(--transition);
}

.dropdown-menu li a:hover {
  background-color: var(--purple);
  color: #fff;
}

.nav-item.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ===== USER OPTIONS ===== */
.user_optio_box {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.user_optio_box a {
  color: var(--purple);
  transition: color var(--transition), transform var(--transition);
  display: flex;
}

.user_optio_box a:hover {
  transform: scale(1.15);
  color: var(--purple-dark);
}

.btn-contact {
  padding: 8px 20px;
  background: var(--purple);
  color: #fff;
  border: none;
  border-radius: 25px;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}

.btn-contact:hover {
  background: var(--purple-dark);
  transform: translateY(-2px);
}

.btn-darkmode {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray);
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
  color: var(--text);
  line-height: 1;
}

body:has(#darkToggle:checked) .btn-darkmode {
  background: #2a2a4a;
}

.btn-darkmode:hover {
  transform: rotate(20deg);
}

/* ===== BURGER ===== */
.navbar-toggler {
  display: none;
  width: 37px;
  height: 42px;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1001;
  flex-shrink: 0;
}

.navbar-toggler span {
  display: block;
  width: 35px;
  height: 4px;
  background-color: var(--toggler-color);
  margin: 3px 0;
  border-radius: 5px;
  transition: all var(--transition);
}

.menu-input:checked ~ .navbar-toggler {
  transform: rotate(180deg);
}

.menu-input:checked ~ .navbar-toggler .s-1 {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-input:checked ~ .navbar-toggler .s-2 {
  opacity: 0;
}

.menu-input:checked ~ .navbar-toggler .s-3 {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== HERO ===== */
.hero_area {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.slider_section {
  flex: 1;
  display: flex;
  align-items: center;
  position: relative;
}

.slider_bg_box {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.slider_bg_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.container {
  max-width: 1170px;
  margin: 0 auto;
  padding: 0 25px;
}

.slider_section .container {
  position: relative;
  z-index: 2;
  display: flex;
}

.slider-content {
  max-width: 600px;
}

.slider_section .detail-box {
  color: #ffffff;
}

.slider_section .detail-box h1 {
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 0;
  font-size: 48px;
  line-height: 1.2;
}

.slider_section .detail-box h1 .purple {
  color: #b45ae0;
}

.slider_section .detail-box p {
  margin: 25px 0;
  font-size: 16px;
  line-height: 1.6;
  opacity: 0.9;
}

.slider_section .detail-box .btn-box {
  display: flex;
  margin: 0 -5px;
  gap: 10px;
}

.slider_section .detail-box .btn-box a {
  margin: 5px;
  text-align: center;
  width: 165px;
}

.slider_section .detail-box .btn-box .btn1 {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--purple);
  color: #ffffff;
  border: none;
  border-radius: 5px;
  text-transform: uppercase;
  font-weight: 600;
  font-size: 13px;
  transition: all var(--transition);
}

.slider_section .detail-box .btn-box .btn1:hover {
  background-color: var(--purple-dark);
}

.slider_section .detail-box .btn-box .btn2 {
  display: inline-block;
  padding: 8px 20px;
  color: #ffffff;
  border: 1.5px solid #ffffff;
  border-radius: 5px;
  text-transform: uppercase;
  font-weight: 600;
  font-size: 13px;
  transition: all var(--transition);
}

.slider_section .detail-box .btn-box .btn2:hover {
  background-color: #ffffff;
  color: #000000;
}

/* ===== FEATURES ===== */
.features_section {
  padding: 90px 0;
}

.heading_container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 50px;
}

.heading_container h2 {
  position: relative;
  font-weight: bold;
  font-size: 32px;
  color: var(--text);
}

.heading_container h2 span {
  color: var(--purple);
}

.features_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
}

.feature_box {
  background: var(--card-bg);
  padding: 35px 25px;
  border-radius: 8px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: all var(--transition);
}

.feature_box:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(128, 25, 200, 0.15);
}

.icon-box {
  margin-bottom: 15px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 50px;
  color: var(--purple);
}

.feature_box h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  text-transform: uppercase;
  color: var(--text);
}

.feature_box p {
  font-size: 14px;
  color: var(--text);
  opacity: 0.7;
  line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer_section {
  background-color: var(--dark);
  padding: 20px 0;
  text-align: center;
}

.footer_section p {
  color: #ffffff;
  margin: 0;
  font-size: 14px;
}

/* ===== OVERLAY ===== */
.menu-input:checked ~ .navbar-nav {
  right: 0;
}

.menu-input:checked ~ .navbar-nav ~ .menu-overlay-fix {
  opacity: 1;
  visibility: visible;
}

.menu-overlay-fix {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
}

.menu-input:checked ~ .navbar-nav ~ .menu-overlay-fix {
  pointer-events: auto;
}

/* ===== CHECKBOXES (accessibles) ===== */
.menu-input,
.dark-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
  .hero_area {
    min-height: auto;
  }

  .navbar-nav {
    padding-top: 15px;
  }

  .user_optio_box {
    gap: 8px;
  }

  .user_optio_box a {
    margin: 0;
  }

  .slider_section {
    padding: 120px 0 75px;
  }

  .slider_section .detail-box h1 {
    font-size: 40px;
  }
}

@media (max-width: 768px) {
  .navbar-toggler {
    display: flex;
  }

  .navbar-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--dropdown-bg);
    flex-direction: column;
    align-items: stretch;
    padding: 80px 20px 30px;
    gap: 2px;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.15);
    transition: right 0.4s ease, background var(--transition);
    z-index: 999;
    margin: 0;
  }

  .hero_area {
    min-height: 90vh;
  }

  .slider_section {
    padding: 100px 0 60px;
  }

  .slider_bg_box {
    height: 100%;
  }

  .nav-link {
    padding: 12px 20px;
    text-align: left;
    font-size: 14px;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0 15px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-item.dropdown:hover .dropdown-menu {
    max-height: 200px;
  }

  .dropdown-menu li a {
    padding: 8px 20px;
  }

  .btn-contact {
    padding: 6px 14px;
    font-size: 12px;
  }

  .slider_section .detail-box h1 {
    font-size: 32px;
  }

  .slider_section .detail-box p {
    font-size: 15px;
    margin: 20px 0;
  }

  .slider_section .detail-box .btn-box {
    flex-direction: column;
    align-items: flex-start;
  }

  .slider_section .detail-box .btn-box a {
    width: 100%;
    max-width: 200px;
  }

  .heading_container h2 {
    font-size: 24px;
  }

  .features_section {
    padding: 60px 0;
  }
}

@media (max-width: 576px) {
  .header_section .container-fluid {
    padding-right: 15px;
    padding-left: 15px;
  }

  .navbar {
    gap: 10px;
  }

  .navbar-brand span {
    font-size: 16px;
  }

  .user_optio_box {
    gap: 6px;
  }

  .btn-contact {
    padding: 5px 12px;
    font-size: 10px;
  }

  .btn-darkmode {
    width: 32px;
    height: 32px;
    font-size: 18px;
  }

  .navbar-toggler {
    width: 32px;
    height: 36px;
  }

  .navbar-toggler span {
    width: 28px;
    height: 3px;
    margin: 2.5px 0;
  }

  .slider_section {
    padding: 90px 0 50px;
  }

  .slider_section .detail-box h1 {
    font-size: 24px;
  }

  .slider_section .detail-box p {
    font-size: 14px;
    margin: 15px 0;
  }

  .slider_section .detail-box .btn-box a {
    width: 100%;
    max-width: 180px;
    font-size: 12px;
  }

  .slider_section .detail-box .btn-box .btn1,
  .slider_section .detail-box .btn-box .btn2 {
    padding: 10px 12px;
  }

  .features_section {
    padding: 40px 15px;
  }

  .heading_container {
    margin-bottom: 30px;
    align-items: center;
    text-align: center;
  }

  .heading_container h2 {
    font-size: 20px;
  }

  .features_grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .feature_box {
    padding: 25px 20px;
  }

  .feature_box h3 {
    font-size: 16px;
  }

  .footer_section {
    padding: 15px 15px;
  }

  .footer_section p {
    font-size: 12px;
  }
}

@media (max-width: 400px) {
  .user_optio_box a {
    display: none;
  }

  .btn-contact {
    padding: 4px 10px;
    font-size: 9px;
  }

  .slider_section .detail-box h1 {
    font-size: 20px;
  }

  .slider_section .detail-box p {
    font-size: 13px;
  }

  .feature_box {
    padding: 20px 15px;
  }
}