/* 수지 AI·데이터 아카데미 design overrides (keep this loaded AFTER css/style.css) */

:root{
  --ncue-bg: #0b1220;
  --ncue-surface: #0f1b33;
  --ncue-text: #0f172a;
  --ncue-muted: #64748b;
  --ncue-border: rgba(15, 23, 42, 0.10);

  --ncue-primary: #2563eb;   /* modern blue */
  --ncue-primary-2: #06b6d4; /* cyan accent */
  --ncue-primary-dark: #1d4ed8;

  --ncue-radius: 14px;
  --ncue-shadow: 0 14px 40px rgba(2, 6, 23, 0.12);
  --ncue-shadow-sm: 0 8px 18px rgba(2, 6, 23, 0.10);
}

html, body{
  font-family: ui-sans-serif, system-ui, -apple-system, "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ncue-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body{
  background:
    radial-gradient(1100px 500px at 15% -10%, rgba(37,99,235,0.12), transparent 60%),
    radial-gradient(900px 460px at 90% 0%, rgba(6,182,212,0.12), transparent 55%),
    #f7f8fb;
}

/* Stronger global text contrast (template defaults are too light) */
p{
  color: rgba(15, 23, 42, 0.88);
  font-weight: 600;
}
li{
  color: rgba(15, 23, 42, 0.88);
  font-weight: 650;
}
label, input, textarea{
  color: rgba(15, 23, 42, 0.92);
}
small, .muted, .text-muted{
  color: rgba(15, 23, 42, 0.68) !important;
}

a{ color: var(--ncue-primary); }
a:hover, a:focus{ color: var(--ncue-primary-dark); }

/* Navbar */
.navbar-default{
  background: rgba(255,255,255,0.92);
  border-color: rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(8px);
}
.navbar-brand{
  font-weight: 800;
  letter-spacing: -0.3px;
  text-transform: none; /* override template's uppercase for mixed KR/EN brand */
  white-space: nowrap;  /* prevent awkward line breaks */
}
.navbar-brand span{ color: var(--ncue-primary) !important; }

@media (max-width: 767px){
  .navbar-brand{ font-size: 18px; }
}
.navbar .nav>li>a{
  font-weight: 700;
  letter-spacing: -0.2px;
}
.navbar-default .navbar-nav>li>a,
.navbar .nav>li>a{
  /* Ensure readable nav text on the template's white navbar + mobile collapse */
  color: rgba(15, 23, 42, 0.92) !important;
}
.navbar .nav>li>a:hover,
.navbar .nav>li>a:focus{
  color: var(--ncue-primary);
}

/* Active nav item: overwrite.css makes this white, which becomes invisible on white backgrounds */
.navbar-default .navbar-nav>.active>a,
.navbar-default .navbar-nav>.active>a:hover,
.navbar-default .navbar-nav>.active>a:focus,
.navbar .nav>.active>a,
.navbar .nav>.active>a:hover,
.navbar .nav>.active>a:focus{
  color: rgba(15, 23, 42, 0.96) !important;
  background: rgba(37, 99, 235, 0.10) !important;
}

@media (max-width: 767px){
  /* Mobile collapse menu readability */
  .navbar-default .navbar-collapse{
    background: #ffffff;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
  }
  .navbar-default .navbar-nav>li>a{
    padding: 12px 16px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  }
  .navbar-default .navbar-nav>li>a:hover,
  .navbar-default .navbar-nav>li>a:focus{
    background: rgba(37, 99, 235, 0.08);
  }
}

/* Buttons */
.btn, .btn:focus{
  border-radius: 999px;
  box-shadow: none;
}
.btn-theme{
  background: linear-gradient(135deg, var(--ncue-primary), var(--ncue-primary-2));
  border: 0;
  font-weight: 800;
  letter-spacing: -0.2px;
  padding: 12px 18px;
}
.btn-theme:hover, .btn-theme:focus{
  background: linear-gradient(135deg, var(--ncue-primary-dark), #0891b2);
}
.btn-default{
  border-color: rgba(15, 23, 42, 0.12);
  font-weight: 800;
  color: #0f172a;
}
.btn-default:hover{
  border-color: rgba(15, 23, 42, 0.18);
  background: #ffffff;
}

/* Headings */
h1,h2,h3,h4{
  letter-spacing: -0.6px;
  color: #0b1220;
}

/* Mobile typography defaults: avoid awkward KR line breaks and restore breathing room */
@media (max-width: 767px){
  h1,h2,h3,h4,h5,h6{
    word-break: keep-all;
    overflow-wrap: normal;
    hyphens: none;
  }
  p, li{
    /* Desktop can be bolder; mobile needs slightly lighter weight for readability */
    font-weight: 600;
  }
  .container{
    padding-left: 16px;
    padding-right: 16px;
  }
  .row,.row-fluid,
  .row .row,.row-fluid .row-fluid{
    margin-bottom: 18px !important;
  }
}

/* Featured / slider: add cinematic overlay for better text contrast */
#featured{
  position: relative;
}

/* Reduce excessive hero height + remove white gutters by cropping like a real hero banner */
#featured .flexslider{
  margin: 24px 0 18px !important;
}
#featured #main-slider .slides img{
  width: 100%;
  height: 440px;
  object-fit: cover;
  object-position: center;
}

@media (max-width: 991px){
  #featured #main-slider .slides img{ height: 360px; }
}
@media (max-width: 767px){
  /* Give a bit more vertical room for the caption card */
  #featured #main-slider .slides img{ height: 320px; }
}
@media (max-width: 480px){
  #featured #main-slider .slides img{ height: 300px; }
}

#featured:before{
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(15,23,42,0.55), rgba(15,23,42,0.20));
  pointer-events: none;
  /* Keep overlay BEHIND slider contents; otherwise caption text looks washed out */
  z-index: 0;
}
#featured .flexslider{ position: relative; z-index: 1; }
#featured .flex-caption{
  z-index: 3 !important;
  background: rgba(2, 6, 23, 0.65) !important;
  border: 1px solid rgba(255,255,255,0.18) !important;
  backdrop-filter: blur(8px);
  border-radius: var(--ncue-radius);
  box-shadow: var(--ncue-shadow);
}
#featured .flex-caption h3{
  color: #ffffff !important;
  text-shadow: 0 2px 10px rgba(0,0,0,0.45);
}
#featured .flex-caption p{
  color: rgba(255,255,255,0.92) !important;
  text-shadow: 0 2px 10px rgba(0,0,0,0.35);
}
#featured img{
  /* Keep subtle enhancement, but do not reduce clarity */
  filter: saturate(1.02) contrast(1.02);
}

/* Slider polish on mobile: keep caption (template hides it), improve layout + navigation */
@media (max-width: 767px){
  /* Hide direction arrows (hover-based) and rely on swipe + dots */
  #featured .flex-direction-nav{
    display: none;
  }

  /* Make caption a clean bottom card */
  #featured .flexslider .flex-caption{
    display: block !important; /* override template's small-screen 'display:none' */
    left: 12px !important;
    right: 12px !important;
    bottom: 34px !important;   /* reserve space for dots */
    width: auto !important;
    padding: 14px 14px 12px !important;
    margin: 0 !important;
    text-align: left;
  }
  #featured .flex-caption h3{
    text-transform: none !important;
    letter-spacing: -0.6px !important;
    font-size: 18px;
    line-height: 1.25;
    margin: 0 0 8px;
    word-break: keep-all;
  }
  #featured .flex-caption p{
    font-size: 13px !important;
    line-height: 1.6;
    margin: 0 0 10px;
    word-break: keep-all;
  }
  #featured .flex-caption .btn{
    display: inline-block;
    width: 100%;
    padding: 12px 14px;
    font-weight: 900;
  }

  /* Dots: keep visible and avoid overlapping the caption */
  #featured .flex-control-nav{
    bottom: 10px;
    z-index: 4;
  }
  #featured .flex-control-paging li a{
    width: 9px;
    height: 9px;
    background: rgba(255,255,255,0.45);
    box-shadow: none;
  }
  #featured .flex-control-paging li a.flex-active{
    background: rgba(255,255,255,0.92);
  }
}

@media (max-width: 480px){
  #featured .flexslider .flex-caption{
    left: 10px !important;
    right: 10px !important;
    bottom: 32px !important;
    padding: 12px 12px 10px !important;
  }
  #featured .flex-caption h3{
    font-size: 17px;
  }
}

/* CTA block (override template's `section.callaction { padding:50px 0 0 0; }`) */
section.callaction{
  padding-top: 22px;
  padding-bottom: 14px;
}

.big-cta{
  position: relative; /* anchor :before background to this card */
  border-radius: var(--ncue-radius);
  box-shadow: var(--ncue-shadow);
  border: 1px solid rgba(15,23,42,0.06);
  overflow: hidden;
}
.big-cta .cta-text{
  padding: 22px 22px 18px;
}
.big-cta:before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 320px at 20% 0%, rgba(37,99,235,0.16), transparent 55%),
    radial-gradient(700px 320px at 85% 20%, rgba(6,182,212,0.14), transparent 55%),
    #ffffff;
  z-index: 0;
}
.big-cta .cta-text{
  position: relative;
  z-index: 1;
}

/* Home-only: extend the BLUE/WHITE card background below the buttons (not the gray section background) */
section.callaction.callaction-home{
  /* Reduce the gray area under the CTA (half-ish) */
  padding-bottom: 12px;
}
section.callaction.callaction-home .big-cta{
  padding-bottom: 20px;
}

/* The template adds `.row { margin-bottom: 30px; }` globally, which inflates the gray band.
   Remove it only for the home CTA section. */
section.callaction.callaction-home .row{
  margin-bottom: 0 !important;
}

/* Home CTA: mobile-friendly spacing, typography, and button layout */
@media (max-width: 767px){
  section.callaction.callaction-home{
    padding-top: 16px;
    padding-bottom: 10px;
  }
  section.callaction.callaction-home .big-cta{
    margin-top: 10px;
    padding-bottom: 14px;
  }
  section.callaction.callaction-home .big-cta .cta-text{
    /* Use a consistent spacing rhythm instead of per-paragraph inline margins */
    padding: 34px 22px 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  section.callaction.callaction-home .big-cta .cta-text h2{
    margin: 0;
    font-size: 26px;
    line-height: 1.22;
    letter-spacing: -0.8px;
    text-align: center;
    max-width: 22ch;
  }
  section.callaction.callaction-home .big-cta .cta-text p{
    margin: 0 !important; /* override inline styles in index.html */
    font-size: 15px;
    line-height: 1.8;
    text-align: center;
    color: rgba(15, 23, 42, 0.86);
    max-width: 38ch;
  }
  /* Slight visual separation between the two description lines */
  section.callaction.callaction-home .big-cta .cta-text p + p{
    padding-top: 2px;
  }
  section.callaction.callaction-home .big-cta .cta-text p:last-of-type{
    margin: 10px 0 0 !important;
    max-width: none;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
  }
  section.callaction.callaction-home .big-cta .cta-text p:last-of-type .btn{
    flex: 1 1 140px;
    max-width: 220px;
    padding: 13px 14px;
    font-weight: 900;
  }
}

/* Cards / boxes */
.box{
  border-radius: var(--ncue-radius);
  overflow: hidden;
  box-shadow: var(--ncue-shadow-sm);
  border: 1px solid rgba(15,23,42,0.06);
  background: #ffffff;
}
.box .box-gray p,
.box p{
  color: rgba(15, 23, 42, 0.88) !important;
  font-weight: 650;
}
.box .box-gray{
  background: linear-gradient(180deg, #ffffff, #fbfcff) !important;
}
.box .box-gray h4{
  margin-top: 0;
}
.box .icon i{
  color: var(--ncue-primary);
}
.box-bottom{
  background: #ffffff !important;
  border-top: 1px solid rgba(15,23,42,0.06);
}
.box:hover{
  transform: translateY(-3px);
  transition: transform 160ms ease, box-shadow 160ms ease;
  box-shadow: var(--ncue-shadow);
}

@media (max-width: 767px){
  /* Mobile cards: a bit more padding + clearer tap targets */
  #content{
    padding: 28px 0 24px;
  }
  .box .box-gray{
    padding: 18px 16px 16px !important;
  }
  .box .box-gray h4{
    margin-bottom: 12px;
    line-height: 1.25;
    text-align: center;
  }
  .box .icon{
    margin-bottom: 10px;
  }
  .box-bottom{
    padding: 14px 0 !important;
  }
  .box-bottom a{
    display: inline-block;
    padding: 6px 10px;
  }
}

/* Pricing cards */
.pricing-box-alt{
  border-radius: var(--ncue-radius);
  border: 1px solid rgba(15,23,42,0.06);
  box-shadow: var(--ncue-shadow-sm);
  overflow: hidden;
}
.pricing-box-alt.special{
  border: 1px solid rgba(37,99,235,0.22);
  box-shadow: 0 18px 60px rgba(37,99,235,0.14);
}
.pricing-heading{
  background: linear-gradient(135deg, rgba(37,99,235,0.10), rgba(6,182,212,0.10));
}
.pricing-box-alt .pricing-heading h3{
  color: #0b1220 !important;
  font-weight: 900 !important;
}
.pricing-box-alt .pricing-heading h3 strong{
  font-weight: 900 !important;
}
.pricing-box-alt.special .pricing-heading,
.pricing-box-alt.special .pricing-heading h3{
  color: #0b1220 !important; /* override template's white text */
}
.pricing-box-alt .pricing-terms h6{
  font-style: normal !important;
  font-family: inherit !important;
  font-weight: 900 !important;
  letter-spacing: -0.2px;
}
.pricing-content{
  color: rgba(15, 23, 42, 0.90) !important;
}
.pricing-content ul li{
  color: rgba(15, 23, 42, 0.88) !important;
  font-weight: 700;
}
.pricing-terms h6{
  font-weight: 900;
  letter-spacing: -0.3px;
}

/* Inner headline */
#inner-headline{
  background: linear-gradient(135deg, rgba(37,99,235,0.10), rgba(6,182,212,0.10));
  border-bottom: 1px solid rgba(15,23,42,0.06);
}
#inner-headline .breadcrumb li,
#inner-headline .breadcrumb li a{
  color: rgba(15,23,42,0.92) !important;
  font-weight: 750;
}

/* Page hero (used on assignment/help page) */
.page-hero{
  position: relative;
  padding: 28px 0 18px;
  overflow: hidden;
}
.page-hero:before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 420px at 15% 0%, rgba(37,99,235,0.18), transparent 60%),
    radial-gradient(900px 420px at 85% 20%, rgba(6,182,212,0.14), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.65), rgba(255,255,255,0.10));
  z-index: 0;
}
.page-hero:after{
  content:"";
  position:absolute;
  inset:0;
  background:
    url("../img/slides/hero-ai-2.svg") center/cover no-repeat;
  opacity: 0.16;
  filter: saturate(1.05) contrast(1.05);
  z-index: 0;
}
.page-hero .container{ position: relative; z-index: 1; }
.page-hero .hero-card{
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(15,23,42,0.08);
  border-radius: var(--ncue-radius);
  box-shadow: var(--ncue-shadow);
  padding: 22px 22px 18px;
  overflow: hidden;
}
.page-hero .breadcrumb{
  margin: 0 0 12px;
  background: transparent !important;
}
.page-hero .breadcrumb li,
.page-hero .breadcrumb li a{
  color: rgba(15,23,42,0.82) !important;
  font-weight: 750;
}
.page-hero h1{
  margin: 0 0 10px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.8px;
}
.page-hero .hero-lead{
  margin: 0;
  color: rgba(15,23,42,0.82);
  line-height: 1.75;
  font-weight: 650;
  max-width: 70ch;
}
.page-hero .hero-actions{
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.page-hero .hero-actions .btn{
  padding: 12px 16px;
  font-weight: 900;
}

@media (max-width: 767px){
  .page-hero{
    padding: 18px 0 10px;
  }
  .page-hero .hero-card{
    padding: 18px 16px 14px;
  }
  .page-hero h1{
    font-size: 26px;
    line-height: 1.22;
  }
  .page-hero .hero-lead{
    max-width: none;
    font-size: 15px;
  }
  .page-hero .hero-actions{
    margin-top: 12px;
  }
  .page-hero .hero-actions .btn{
    width: 100%;
  }
}

/* Meta post (blog) */
ul.meta-post li,
ul.meta-post li a{
  color: rgba(15, 23, 42, 0.86) !important;
  font-weight: 650;
}
ul.meta-post li i{
  color: rgba(15, 23, 42, 0.70) !important;
}

/* Footer */
footer{
  background: #0b1220 !important;
  color: rgba(255,255,255,0.82) !important;
}
footer p, footer li{
  color: rgba(255,255,255,0.86) !important;
  font-weight: 600;
}
footer a{ color: rgba(255,255,255,0.92) !important; }
footer a:hover{ color: #ffffff !important; }
footer .widgetheading{
  color: #ffffff !important;
  letter-spacing: -0.2px;
}
#sub-footer{
  background: #07101f !important;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* Reduce over-busy template decorations if any */
.solidline{
  border-top: 1px solid rgba(15,23,42,0.08) !important;
}