@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

/*
*  1. Dark & Light Modes
*      1.1 Light Mode
*      1.2 Dark Mode
*  2. Default Settings
*      2.1 Universal Selector
*      2.2 body, a, ul
*  3. Light & Dark modes 
*
*  4. Header
*
*  5. Content 
*      5.1 content1   
*  6. Footer
*
*  7. Buttons
*      5.1 Call-To-Action Button
*  8. Card
*  9. Menus 
*      9.1 Navigation Menu
*      9.2 Main Manu
*  
*  50. Mobile Style
*/



/* 1. Dark & Light Modes  */
/* ====================== */
/*     1.1 Light Mode */
:root {
  --bg-color:             #f4f4f9;
  --bg-hover-color:       #ebeaf7;
  --text-color:           #333;
  --text-hover-color:     #4340f0;

  --toggle-bg:            #e4e6eb;
  --toggle-fg:            #ffffff;
  --sun-color:            #f39c12;
  --moon-color:           #f1c40f;

  --card-bg-color:        #ffffff;
  --button-color:         #C8102E;
  --primary-color:        #007bff;
  --primary-text-color:   #ffffff;
  --border-color:         #ddd;
  --shadow-color:         rgba(0, 0, 0, 0.1);
  --font-family:          'Noto Sans KR', sans-serif;
}
/*     1.2 Dark Mode */
[data-theme="dark"] {
  --bg-color:             #121212;
  --bg-hover-color:       #413f3f;
  --text-color:           #e0e0e0;
  --text-hover-color:     #e08e8e;

  --toggle-bg:            #3a3b3c;
  --toggle-fg:            #242526;

  --sun-color:            #f1c40f;
  --moon-color:           #f39c12;  

  --card-bg-color:        #1e1e1e;
  --button-color:         #00205B;
  --primary-color:        #4dabf7;
  --primary-text-color:   #121212;
  --border-color:         #444;
  /* --shadow-color:         rgba(0, 0, 0, 0.4); */
  --shadow-color:         rgba(194, 241, 208, 0.4);
}


/* 2. Default Settings */
/* =================== */
/*     2.1 Universal Selector */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
} 
/*     2.2 body, a, ul, main */
body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
main { padding: 2rem 0; }
h1 { padding: 1rem 0 !important; }

.archive-content {
     margin: 5px;
    padding: 5px;
}

.input_text {
    display: block;
    width: 100%;
    padding: .375rem .75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: var(--bg-color) !important;
    appearance: none;
    background-color: var(--bs-body-bg);
    background-clip: padding-box;
    border: var(--bs-border-width) solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    transition: border-color .15s ease-in-out, box-shadow .15s
}


/* 
   3. Light & Dark modes 
       3.1 Mode Checkbox 
       3.2 Mode label
       3.3 sun & moon icons 
*/

/*     3.1 Mode Checkbox */
#theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.2s, color 0.3s;
}

#theme-toggle:hover {
    background-color: var(--bg-color);
}

.theme-toggle-checkbox {
    display: none !important;
}

/*     3.2 Mode label */
.theme-toggle-label {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 70px;
    height: 35px;
    background-color: var(--toggle-bg);
    border-radius: 50px;
    padding: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.theme-toggle-label::before {
    content: '';
    position: absolute;
    width: 27px;
    height: 27px;
    background-color: var(--toggle-fg);
    border-radius: 50%;
    top: 50%;
    left: 9px;
    transform: translateY(-50%);
    transition: transform 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.theme-toggle-checkbox:checked + .theme-toggle-label::before {
    transform: translateY(-50%) translateX(36px);
}

/*     3.3 sun & moon icons */
.sun-icon, .moon-icon {
    width: 20px;
    height: 20px;
    transition: opacity 0.3s ease, transform 0.4s ease, color 0.3s ease;
}

.sun-icon {
    color: var(--sun-color);
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.moon-icon {
    color: var(--moon-color);
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

.theme-toggle-checkbox:checked + .theme-toggle-label .sun-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

.theme-toggle-checkbox:checked + .theme-toggle-label .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}




/*
    4. Header 
        4.1 Header Basic
        4.2 Header Menu Style : header --- .top-bar --- ul --- li --- a 
*/
header {

    background-color: var(--bg-color);
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 1rem 0;
    margin:  0 0 2rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s, border-color 0.3s;

}

/* Header Basic */
header .container-full, header .container {

    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

header .logo { 
  flex: 0 0 20%; 
  justify-content: flex-start;
  font-size: 24px; 
  font-weight: bold; 
  padding: 12px 0px 12px 30px;
}

header .navigation-menu { 
  flex: 0 0 60%; 
  display: flex; 
  justify-content: center; 
}

header .actions { 
  flex: 0 0 20%; 
}

header .actions .user-login {
  display: flex; 
  justify-content: center; 
  gap: 15px; 
}

header .actions .theme-toggle-container {
  display: flex; 
  justify-content: center; 
  margin-top:10px;
}

/*  1. Header Menu Style : header --- .top-bar --- ul --- li --- a  */





/* 
   5. Content 
   =============
       5.1 content1 
*/ 
/*     5.1 content1 */
.content1 {
    text-align: center;
    margin-bottom: 4rem;
}

.content1 h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.content1 p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}


/* 
   6. footer 
   ==========
*/

footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
    font-size: 0.9rem;
    color: #888;
    /* border-top: 1px solid var(--border-color); */
    transition: border-color 0.3s;
}


/* 
   7. Buttons 
   ===========
       7.1 Call-To-Action Button
       7.2 Hamburger Button
*/

/*     7.1 Call-To-Action Button */
.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--primary-text-color);
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s, background-color 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

/*  2. Hamburger Button  */
.hamburger-button, .popup-menu { display: none; }



/* 
    8. Card 
    ========
    8.1 main-card1

*/

/*
    8.1 main-card1
        <section class="main-card1-container">
          <div class="main-card1"></div>
        </section>
*/
.main-card1-container {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 2rem;
}

.main-card1 {
    background-color: var(--card-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 12px var(--shadow-color);
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s, border-color 0.3s;
}

.main-card1:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px var(--shadow-color);
}

.main-card1 h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}



/*
   9. Menus
       9.1 Naviation Menu
       9.2 Main Menu
*/

/*
   9.1 Naviation Menu
<nav class="navigation-menu">
  <div class="menu-top-bar-container">
    <ul class="top-bar">
      <li><a>Home</a></li>
      <li><a>About Us</a>
        <ul class="sub-menu">
	        <li><a>Our Team</a></li>
        	<ul class="sub-menu">
		          <li><a>Content</a></li>
	        </ul>
        </ul>
      </li>
    </ul>
  </div>
 </nav>

*/

.navigation-menu ul {
  list-style: none;
  margin:0;
  padding:0;
}

nav .top-bar { 
  display: flex; 
  /* background-color: var(--bg-color);  */
  color: var(--text-color); 
}

nav .top-bar > li {
    position: relative; 
    color: var(--text-color); 
}

nav .top-bar > li:hover { 
  background-color: var(--bg-hover-color);
  box-shadow: 0px 0px 2px 2px var(--shadow-color);
  border-radius: 5px;
}

nav .top-bar > li > a { 
  display: block; 
  padding: 15px 25px; 
  font-size: 16px; 
}
/* Menu Item Bottom Line Animation */
nav .top-bar li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
} 
nav .top-bar li a:hover::after {
    width: 100%;
}


/* sub-manu section */
nav ul .sub-menu {
    position: absolute;
    top: 100%;
    left: 0px;
    display: none;
    background-color: var(--bg-color);
    min-width: 160px;
    box-shadow: 0px 0px 2px 2px var(--shadow-color);
    border-radius: 5px;
    z-index: 1;
}

nav ul .sub-menu li {
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    position: relative; 
}
nav ul .sub-menu li:hover { 
  background-color:var(--bg-hover-color) 
}
nav ul .sub-menu li a { 
  display: block; 
  padding: 12px 16px; 
}
.top-bar > li:hover > .sub-menu {
    display: block;
}

/* sub-sub-manu section */
nav ul .sub-menu .sub-menu {
    position: absolute;
    top: 0px; 
    left: 103%;
    display: none; 
    background-color: var(--bg-color); 
    min-width: 180px;
    box-shadow: 0px 0px 2px 2px var(--shadow-color);
    border-radius: 5px;
}

nav ul .sub-menu > li:hover > .sub-menu {
    display: block;
}

/* 
   9.2 Main Manu 
       main-nav section
       sub-menu section
       sub-sub-menu section

  <nav class="main-nav">
    <ul class="main-menu">
      <li><a>Home</a></li>
      <li class="has-submenu"><a>Product</a>
        <ul class="sub-menu">
          <li><a> A </a></li>
          <li class="has-submenu"><a> B »</a> 
            <ul class="sub-sub-menu">
              <li><a> B1 </a></li>
              <li><a> B2 </a></li>
            </ul>
          </li>
          <li><a> C </a></li>
        </ul>
      </li>
    </ul>
  </nav>

*/

.main-nav ul { 
  list-style: none; 
  padding: 0; 
  margin: 0; 
}

nav .main-menu { 
  display: flex; 
  background-color: var(--bg-color); 
  color: var(--text-color); 
}

nav .main-menu > li {
    position: relative; 
    color: var(--text-color); 
}

nav .main-menu > li:hover { 
  background-color: var(--bg-hover-color);
  box-shadow: 0px 0px 2px 2px var(--shadow-color);
  border-radius: 10px;
}

nav .main-menu > li > a { 
  display: block; 
  padding: 15px 25px; 
  font-size: 16px; 
}



/* sub-manu section */
nav ul .has-submenu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    display: none;
    background-color: var(--bg-color);
    min-width: 160px;
    box-shadow: 0px 0px 2px 2px var(--shadow-color);
    border-radius: 10px;
    z-index: 1;
}

nav ul .has-submenu .sub-menu li {
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    position: relative; 
}
nav ul .has-submenu .sub-menu li a { 
  display: block; 
  padding: 12px 16px; 
}
nav ul .has-submenu .sub-menu li:hover { 
  background-color:var(--bg-hover-color) 
}

.main-menu > li:hover > .sub-menu {
    display: block;
}

/* sub-sub-manu section */
nav ul .has-submenu .sub-menu .sub-sub-menu {
    position: absolute;
    top: 0; 
    left: 100%; 
    display: none; 
    background-color: var(--bg-color); 
    min-width: 180px;
    box-shadow: 0px 0px 2px 2px var(--shadow-color);
    border-radius: 10px;
}

nav ul .has-submenu .sub-menu > li:hover > .sub-sub-menu {
    display: block;
}

/* 
    50. Mobile Style 
*/

@media (max-width: 768px) {

    .card-container {
        grid-template-columns: repeat(3, 1fr); 
    }

    header h1 {
        font-size: 1.8rem;
    }
    
    
    header .logo span, header .navigation-menu, header .actions .user-login
    { 
      display: none; 
    }
    .hamburger-button 
    { 
      flex: 0 0 10%; 
      display: flex; 
      flex-direction: column; 
      justify-content: space-around; 
      width: 30px; 
      height: 25px; 
      background: transparent; 
      border: none; 
      cursor: pointer; 
      margin-right: 15px;
    }
    .hamburger-button span 
    { 
      width: 100%; 
      height: 3px; 
      background-color: var(--text-color); 
      border-radius: 5px; 
    }
    .popup-menu 
    { 
      display: block; 
      position: fixed; 
      top: 10; 
      right: -100%; 
      width: 70%; 
      max-width: 300px; 
      height: 100vh; 
      background-color: var(--bg-color); 
      border: 1px solid var(--border-color);
      box-shadow: -5px 0 15px var(--shadow-color); 
      z-index: 1000; 
      padding: 60px 20px 20px; 
      transition: right 0.3s ease-in-out; 
      overflow-y: auto; 
    }
    .popup-menu.active 
    { 
      right: 0; 
    }
    .popup-menu .close-button 
    { 
      position: absolute; 
      top: 15px; 
      right: 15px; 
      font-size: 30px; 
      background: none; 
      border: none; 
      cursor: pointer; 
      color: var(--text-color); 
    }
    .popup-menu ul 
    { 
      display: flex; 
      flex-direction: column; 
      gap: 25px; 
    }
    .popup-menu li a 
    { 
      font-size: 18px; 
    }
    .popup-menu hr 
    { 
      border: none; 
      border-top: 1px solid var(--border-color); 
      margin: 15px 0; 
    }

    .top-bar {
        height: 400px; 
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0;
        margin: 0;
        list-style: none; 
    }
          
    .top-bar li {
      padding: 15px;
      /* border-bottom: 1px solid var(--border-color); */
    }

    .top-bar li:last-child {
      border-bottom: none;
    }


}