/*
  MAIN.CSS - Shared design system
  (header, navbar, footer, dark mode)
*/

:root {
  --primary: #10244B;
  --primary-light: #1D3D73;
  --primary-dark: #0A1733;

  --secondary: #E53935;
  --secondary-light: #F25552;
  --secondary-dark: #C62828;

  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --info: #3B82F6;

  --black: #10244B;
  --black-soft: #1F1F1F;
  --black-light: #2B2B2B;

  --gray-dark: #4B4B4B;
  --gray: #777777;
  --gray-light: #BDBDBD;
  --gray-soft: #E5E5E5;

  --white: #FFFFFF;
  --white-soft: #FAFAFA;
  --off-white: #F7F7F7;

  --text: #111111;
  --text-light: #666666;
  --text-white: #FFFFFF;

  --bg: #FFFFFF;
  --bg-section: #F7F7F7;

  --border: #E5E5E5;
  --border-light: #F1F5F9;

  --shadow-sm: 0 5px 15px rgba(0, 0, 0, .08);
  --shadow-md: 0 15px 35px rgba(0, 0, 0, .12);
  --shadow-lg: 0 25px 60px rgba(0, 0, 0, .18);
  --shadow-xl: 0 30px 70px rgba(0, 0, 0, .22);

  --radius: 20px;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --radius-round: 999px;

  --space-xs: 5px;
  --space-sm: 10px;
  --space-md: 20px;
  --space-lg: 40px;
  --space-xl: 60px;
  --space-xxl: 100px;

  --font-primary: "Poppins", sans-serif;

  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 22px;
  --fs-xl: 28px;
  --fs-2xl: 36px;
  --fs-3xl: 48px;
  --fs-4xl: 64px;

  --fw-light: 300;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  --container-width: 1320px;
  --transition: .35s ease;
  --transition-fast: .2s ease;

  --topbar-height: 45px;
  --navbar-height: 80px;
  --navbar-height-tablet: 75px;
  --sidebar-width: 280px;

  --z-dropdown: 100;
  --z-sticky: 500;
  --z-fixed: 1000;
  --z-modal: 2000;

}

/* DARK MODE */

body.dark-mode {
  --primary: #92a5c7;
  --primary-light: #5A8AF0;
  --primary-dark: #040c1f;

  --black: #FFFFFF;
  --black-soft: #EAEAEA;
  --black-light: #CCCCCC;

  --gray-dark: #D0D0D0;
  --gray: #999999;
  --gray-light: #777777;
  --gray-soft: #2A2A2A;

  --white: #1A1A1A;
  --white-soft: #222222;
  --off-white: #252525;

  --text: #FFFFFF;
  --text-light: #B5B5B5;

  --bg: #111111;
  --bg-section: #1B1B1B;

  --border: #333333;
  --border-light: #2A2A2A;

 
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5,
body.dark-mode h6 {
  color: #FFFFFF;
}

body.dark-mode p {
  color: var(--text-light);
}

/* RESET */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--bg);
  color: var(--text);
  font-size: var(--fs-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background .35s ease, color .35s ease;
 
  padding-top: calc(var(--topbar-height) + var(--navbar-height));
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--fw-bold);
  line-height: 1.3;
  color: var(--text);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: var(--font-primary);
  border: none;
  background: none;
  cursor: pointer;
}

::selection {
  background: var(--secondary);
  color: #fff;
}

/* custom scrollbar  */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-section);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-light);
  border-radius: var(--radius-round);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* HEADER */

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-fixed);
}

/* TOP HEADER */

.top-header {
  height: var(--topbar-height);
  background: var(--primary-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 6%;
}

.contact-info,
.social-media {
  display: flex;
  align-items: center;
  gap: 25px;
}

.contact-info span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: var(--fs-sm);
  letter-spacing: .2px;
}

.social-media a {
  color: #fff;
  font-size: 15px;
  transition: var(--transition-fast);
}

.social-media a:hover {
  color: var(--secondary);
  transform: translateY(-2px);
}

/* NAVBAR */

.navbar {
  height: var(--navbar-height);
  background: var(--white);
  display: flex;
  justify-content: space-between;
 gap:20px;
  padding: 0 6%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.logo {
  flex: 6%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.logo h1 {
  color: var(--primary);
  font-size: 30px;
  line-height: 1;
  font-weight: var(--fw-bold);
  letter-spacing: -.3px;
}

.logo p {
  color: var(--secondary);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 2px;
  margin-top: 4px;
}

/* MENU */

.nav-links {
  flex: 40%;
  display: flex;
  align-items: center;
  gap: 40px;
  background: var(--white);
  transition: var(--transition);
  margin: 0 auto;
}

.nav-links a {
  color: var(--text);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  letter-spacing: .2px;
  position: relative;
  transition: var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: var(--transition-fast);
}

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

.nav-links a:hover::after {
  width: 100%;
}

/* active link */
.nav-links a.active-link {
  color: var(--secondary);
  border-bottom: 2px solid var(--secondary);
  padding-bottom: 8px;
}

/* DROPDOWN (Blog submenu) */

.dropdown {
  position: relative;
}

.dropdown > a {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dropdown > a i {
  font-size: 12px;
  transition: var(--transition-fast);
}

.dropdown-menu {
  position: absolute;
  top: 120%;
  left: 0;
  min-width: 220px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition);
  padding: 10px 0;
  z-index: 999;
}

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

.dropdown:hover > a i {
  transform: rotate(180deg);
}

.dropdown-menu li a {
  display: block;
  padding: 12px 20px;
  color: var(--text);
  font-size: var(--fs-sm);
  transition: var(--transition-fast);
}

.dropdown-menu li a:hover {
  background: var(--gray-soft);
  color: var(--secondary);
  padding-left: 28px;
}

@media (max-width: 992px) {
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    box-shadow: none;
    background: var(--bg-section);
    border-radius: 10px;
    margin-top: 10px;
  }

  .dropdown.active .dropdown-menu {
    display: block;
  }

  .dropdown.active > a i {
    transform: rotate(180deg);
  }
}

/* LOGIN BUTTON */

.login-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary);
  color: #fff;
  padding: 12px 22px;
  border-radius: 15px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: .2px;
 
  transition: var(--transition-fast);
  max-height: 150px;
  margin:auto 0;
}

.login-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* HAMBURGER */

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--primary);
}

.mobile-login-link {
  display: none;
}

/* DARK MODE TOGGLE */

.theme-toggle {
  width: 45px;
  height: 45px;
  border: none;
  border-radius: 50%;
  background: var(--bg-section);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
 
  
  margin:auto 0;
}

.theme-toggle:hover {
  background: var(--primary);
  color: #fff;
  transform: rotate(180deg);
}

@media (max-width: 1100px) {
  .theme-toggle {
    margin-right: 10px;
  }
}

/* TABLET */

@media (max-width: 1100px) {
  body {
    padding-top: var(--navbar-height-tablet);
  }

  .top-header {
    display: none;
  }

  .navbar {
    height: var(--navbar-height-tablet);
    position: relative;
  }

  .menu-toggle {
    display: block;
  }

  .login-btn {
    display: none;
  }

  .mobile-login-link {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: -100%;
    width: 300px;
    max-width: 85vw;
    height: calc(100vh - var(--navbar-height-tablet));
    background: var(--white);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 0;
    padding: 30px;
    overflow-y: auto;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.active {
    left: 0;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 1px solid var(--border);
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 16px 0;
  }

  .nav-links a::after {
    display: none;
  }
}

/* MOBILE */

@media (max-width: 768px) {
  .navbar {
    padding: 0 20px;
  }

  .logo h1 {
    font-size: 25px;
  }

  .logo p {
    font-size: 11px;
  }

  .nav-links {
    width: 260px;
  }
}

/* SMALL MOBILE */

@media (max-width: 480px) {
  .navbar {
    height: 70px;
    padding: 0 15px;
  }

  body {
    padding-top: 70px;
  }

  .logo h1 {
    font-size: 22px;
  }

  .logo p {
    font-size: 10px;
  }

  .menu-toggle {
    font-size: 24px;
  }

  .nav-links {
    width: 100%;
    max-width: 100%;
  }
}

/* FOOTER */

.footer {
  background: var(--primary-dark);
  color: var(--text-white);
  padding: var(--space-xl) var(--space-lg);
}

.footer-content {
  max-width: 1300px;
  margin: auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
  gap: 50px;
}

.footer-about p {
  margin: 20px 0 25px;
  color: rgba(255, 255, 255, .75);
  line-height: 1.8;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.footer-logo h2 {
  width: 60px;
  height: 60px;
  background: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 28px;
  box-shadow: 0 8px 20px rgba(229, 57, 53, .3);
}

.footer-logo h3 {
  color: white;
  font-size: 22px;
  letter-spacing: .5px;
}

.footer-logo span {
  color: rgba(255, 255, 255, .7);
  font-size: var(--fs-sm);
  display: block;
}

.footer-section h3 {
  margin-bottom: 25px;
  font-size: var(--fs-md);
  position: relative;
  color: var(--text-white);
}

.footer-section h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 45px;
  height: 3px;
  background: var(--secondary);
  border-radius: 50px;
}

.footer-section ul li {
  margin-bottom: 12px;
}

.footer-section ul li a {
  display: inline-block;
  transition: var(--transition-fast);
}

.footer-section ul li a:hover {
  transform: translateX(8px);
  color: var(--secondary);
}

.footer-section p i {
  color: var(--secondary);
  margin-right: 10px;
  width: 18px;
}

.footer-section a {
  color: rgba(255, 255, 255, .8);
  font-size: var(--fs-sm);
  transition: color .3s ease;
}

.footer-section a:hover {
  color: var(--secondary);
}

.footer-section p {
  color: rgba(255, 255, 255, .8);
  font-size: var(--fs-sm);
  margin: 8px 0;
  line-height: 1.6;
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  transition: all .3s ease;
}

.social-links a:hover {
  background: var(--secondary);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, .7);
  font-size: var(--fs-sm);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: rgba(255, 255, 255, .7);
  font-size: var(--fs-sm);
  transition: color .3s ease;
}

.footer-links a:hover {
  color: var(--secondary);
}

@media (max-width: 1200px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .footer {
    padding: var(--space-lg) var(--space-md);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 600px) {
  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* FORMS / CARDS - dark mode  */

input,
textarea,
select {
  background: var(--white);
  color: var(--text);
  border: 1px solid var(--border);
  font-family: var(--font-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(229, 57, 53, .12);
}

.card,
.course-card,
.event-card,
.blog-card {
  background: var(--white);
  color: var(--text);
}