@charset "UTF-8";

:root {
  --font-primary: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕", sans-serif;
  --font-secondary: "GmarketSans", sans-serif;
  --color-primary: #4b89ff;
  --color-title: #111;
  --color-desc: #555;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* Section Heights - PC */
  --height-hero-pc: 978px;
  --height-intro-pc: 731px;
  --height-features-pc: 883px;
  --height-howto-pc: 1298px;

  /* Section Heights - Mobile */
  --height-hero-mo: auto;
  --height-intro-mo: auto;
  --height-features-mo: auto;
  --height-howto-mo: auto;

  /* Responsive Base Viewports */
  --base-vw: 1370;
  --vw: 100svw;
}

/* Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  font-family: var(--font-primary);
  color: #333;
  line-height: 1.5;
  letter-spacing: -0.5px;
  word-break: keep-all;
}

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

ul,
li {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: top;
}

.smartnote-wrap {
  width: 100%;
  min-width: 340px;
  overflow: hidden;
  background-color: #f8fafc;
}

.mo {
  display: none !important;
}

.sn-section {
  width: 100%;
  position: relative;
  padding-top: 120px;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.sn-section img {
  display: initial;
}
.sn-inner {
  width: 100%;
  max-width: var(--base-vw-pc);
  margin: 0 auto;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sn-content {
  width: 100%;
  text-align: center;
}

/* Buttons */
.sn-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 32px;
  border-radius: 30px;
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.28s cubic-bezier(.2, .8, .2, 1), box-shadow 0.28s cubic-bezier(.2, .8, .2, 1), border-color 0.28s ease, background-color 0.28s ease, color 0.28s ease;
  z-index: 1;
  overflow: hidden;
}

.sn-btn span {
  position: relative;
  z-index: 2;
  pointer-events: none;
}

.sn-btn .arrow {
  margin-left: 8px;
  font-weight: 400;
  transition: transform 0.28s cubic-bezier(.2, .8, .2, 1);
}

.sn-btn:hover {
  transform: translateY(-3px);
}

.sn-btn:hover .arrow {
  transform: translateX(5px);
}

.sn-btn:active {
  transform: translateY(-1px);
}

.sn-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, var(--ring-a, transparent), var(--ring-b, transparent), var(--ring-c, transparent));
  opacity: 0;
  transition: opacity 0.28s ease;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.sn-btn::after {
  content: "";
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.4) 45%, transparent 62%);
  transform: translateX(-140%);
  transition: transform 0.62s cubic-bezier(.2, .8, .2, 1);
  pointer-events: none;
  opacity: 0.72;
}

.sn-btn:hover::before {
  opacity: 1;
}

.sn-btn:hover::after {
  transform: translateX(140%);
}

.sn-btn-primary {
  --ring-a: rgba(255, 255, 255, 0.95);
  --ring-b: rgba(112, 178, 255, 0.95);
  --ring-c: rgba(255, 255, 255, 0.95);
  color: #ffffff;
  background: linear-gradient(135deg, #3786ff 0%, #276fee 100%);
  border-color: rgba(47, 125, 246, 0.35);
  box-shadow: 0 10px 22px rgba(47, 125, 246, 0.28);
}

.sn-btn-primary:hover {
  background: linear-gradient(135deg, #2f7df6 0%, #1f66e8 100%);
  box-shadow: 0 14px 30px rgba(47, 125, 246, 0.36), 0 0 0 5px rgba(47, 125, 246, 0.08);
}

.sn-btn-outline {
  --ring-a: rgba(73, 141, 255, 0.95);
  --ring-b: rgba(158, 202, 255, 0.95);
  --ring-c: rgba(73, 141, 255, 0.95);
  color: #4b89ff;
  background: rgba(255, 255, 255, 0.78);
  border-color: rgba(47, 125, 246, 0.55);
  box-shadow: 0 8px 18px rgba(47, 125, 246, 0.10);
}

.sn-btn-outline:hover {
  color: #ffffff;
  background: linear-gradient(135deg, #3786ff 0%, #276fee 100%);
  border-color: transparent;
  box-shadow: 0 14px 30px rgba(47, 125, 246, 0.36), 0 0 0 5px rgba(47, 125, 246, 0.08);
}

.sn-btn-light.sn-btn-primary {
  --ring-a: rgba(107, 174, 255, 0.95);
  --ring-b: rgba(255, 255, 255, 0.96);
  --ring-c: rgba(107, 174, 255, 0.95);
  color: #276fee;
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 24px rgba(0, 45, 120, 0.22), 0 0 0 4px rgba(255, 255, 255, 0.10);
}

.sn-btn-light.sn-btn-primary:hover {
  color: #1f66e8;
  background: #ffffff;
  border-color: rgba(255, 255, 255, 0.96);
  box-shadow: 0 15px 32px rgba(0, 45, 120, 0.30), 0 0 22px rgba(255, 255, 255, 0.52), 0 0 0 5px rgba(255, 255, 255, 0.14);
}

.sn-btn-light.sn-btn-outline {
  --ring-a: rgba(255, 255, 255, 0.95);
  --ring-b: rgba(187, 220, 255, 0.95);
  --ring-c: rgba(255, 255, 255, 0.95);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.62);
  box-shadow: 0 8px 20px rgba(0, 45, 120, 0.14), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
}

.sn-btn-light.sn-btn-outline:hover {
  color: #276fee;
  background: #ffffff;
  border-color: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 28px rgba(0, 45, 120, 0.24), 0 0 18px rgba(255, 255, 255, 0.36), 0 0 0 5px rgba(255, 255, 255, 0.12);
}

/* Section 1: Hero */
.sn-hero {
  padding-top: 214px;
  height: var(--height-hero-pc);
  background-image: url('../img/section1_bg.jpg');
}

.sn-hero .sn-btns {
  position: absolute;
  bottom: 253px;
  left: 50%;
  margin-left: calc(-960px + 360px);
  display: flex;
  gap: 12px;
  z-index: 20;
}

.sn-hero .rabbit {
  position: absolute;
  z-index: 20;
  left: 50%;
  margin-left: 432px;
  bottom: 55px;
  width: 343px;
  height: 351px;
}

/* Section 2: Intro */
.sn-intro {
  background-image: url('../img/section2_bg.jpg');
  height: var(--height-intro-pc);
}

/* Section 3: Features */
.sn-features {
  background-image: url('../img/section3_bg.jpg');
  height: var(--height-features-pc);
}

/* Section 4: How To Use */
.sn-howto {
  background-image: url('../img/section4_bg.jpg');
  height: var(--height-howto-pc);
}

.sn-howto .sn-btns {
  position: absolute;
  bottom: 210px;
  left: 50%;
  margin-left: calc(-960px + 408px);
  display: flex;
  gap: 12px;
  z-index: 20;
}


@media (max-width: 1370px) {
  :root {
    --height-hero-pc: calc(978 * var(--vw) / var(--base-vw));
    --height-intro-pc: calc(731 * var(--vw) / var(--base-vw));
    --height-features-pc: calc(883 * var(--vw) / var(--base-vw));
    --height-howto-pc: calc(1298 * var(--vw) / var(--base-vw));
  }

  .sn-section {
    padding-top: calc(120 * var(--vw) / var(--base-vw));
  }

  .sn-btn {
    height: calc(42 * var(--vw) / var(--base-vw));
    padding: 0 calc(32 * var(--vw) / var(--base-vw));
    border-radius: calc(42 * var(--vw) / var(--base-vw));
    font-size: calc(16 * var(--vw) / var(--base-vw));
  }

  .sn-btn .arrow {
    margin-left: calc(8 * var(--vw) / var(--base-vw));
  }

  .sn-btn:hover {
    transform: translateY(calc(-3 * var(--vw) / var(--base-vw)));
  }

  .sn-btn:hover .arrow {
    transform: translateX(calc(5 * var(--vw) / var(--base-vw)));
  }

  .sn-btn:active {
    transform: translateY(-1.0px);
  }

  .sn-btn-primary {
    box-shadow: 0 calc(10 * var(--vw) / var(--base-vw)) calc(22 * var(--vw) / var(--base-vw)) rgba(47, 125, 246, 0.28);
  }

  .sn-btn-primary:hover {
    box-shadow: 0 calc(14 * var(--vw) / var(--base-vw)) calc(30 * var(--vw) / var(--base-vw)) rgba(47, 125, 246, 0.36), 0 0 0 calc(5 * var(--vw) / var(--base-vw)) rgba(47, 125, 246, 0.08);
  }

  .sn-btn-outline {
    box-shadow: 0 calc(8 * var(--vw) / var(--base-vw)) calc(18 * var(--vw) / var(--base-vw)) rgba(47, 125, 246, 0.10);
  }

  .sn-btn-outline:hover {
    box-shadow: 0 calc(14 * var(--vw) / var(--base-vw)) calc(30 * var(--vw) / var(--base-vw)) rgba(47, 125, 246, 0.36), 0 0 0 calc(5 * var(--vw) / var(--base-vw)) rgba(47, 125, 246, 0.08);
  }

  .sn-btn-light.sn-btn-primary {
    box-shadow: 0 calc(10 * var(--vw) / var(--base-vw)) calc(24 * var(--vw) / var(--base-vw)) rgba(0, 45, 120, 0.22), 0 0 0 calc(4 * var(--vw) / var(--base-vw)) rgba(255, 255, 255, 0.10);
  }

  .sn-btn-light.sn-btn-primary:hover {
    box-shadow: 0 calc(15 * var(--vw) / var(--base-vw)) calc(32 * var(--vw) / var(--base-vw)) rgba(0, 45, 120, 0.30), 0 0 calc(22 * var(--vw) / var(--base-vw)) rgba(255, 255, 255, 0.52), 0 0 0 calc(5 * var(--vw) / var(--base-vw)) rgba(255, 255, 255, 0.14);
  }

  .sn-btn-light.sn-btn-outline {
    box-shadow: 0 calc(8 * var(--vw) / var(--base-vw)) calc(20 * var(--vw) / var(--base-vw)) rgba(0, 45, 120, 0.14);
    backdrop-filter: blur(calc(8 * var(--vw) / var(--base-vw)));
  }

  .sn-btn-light.sn-btn-outline:hover {
    box-shadow: 0 calc(14 * var(--vw) / var(--base-vw)) calc(28 * var(--vw) / var(--base-vw)) rgba(0, 45, 120, 0.24), 0 0 calc(18 * var(--vw) / var(--base-vw)) rgba(255, 255, 255, 0.36), 0 0 0 calc(5 * var(--vw) / var(--base-vw)) rgba(255, 255, 255, 0.12);
  }

  .sn-hero {
    padding-top: calc(214 * var(--vw) / var(--base-vw));
  }

  .sn-hero .sn-btns {
    bottom: calc(253 * var(--vw) / var(--base-vw));
    margin-left: calc(-600 * var(--vw) / var(--base-vw));
    gap: calc(12 * var(--vw) / var(--base-vw));
  }

  .sn-hero .rabbit {
    margin-left: calc(432 * var(--vw) / var(--base-vw));
    bottom: calc(55 * var(--vw) / var(--base-vw));
    width: calc(343 * var(--vw) / var(--base-vw));
    height: calc(351 * var(--vw) / var(--base-vw));
  }

  .sn-howto .sn-btns {
    bottom: calc(210 * var(--vw) / var(--base-vw));
    margin-left: calc(-552 * var(--vw) / var(--base-vw));
    gap: calc(12 * var(--vw) / var(--base-vw));
  }
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  :root {
    --base-vw: 375;
    --vw: max(100svw, 340px);
  }

  .pc {
    display: none !important;
  }

  .mo {
    display: block !important;
  }

  .sn-section {
    padding: 0;
    background: none !important;
  }

  .sn-btns {
    width: 100%;
  }

  .sn-btns .sn-btn {
    flex: 1 1 auto;
    width: auto;
    height: calc(42 * var(--vw) / var(--base-vw));
    white-space: nowrap;
    padding: 0 calc(16 * var(--vw) / var(--base-vw));
    border-radius: calc(42 * var(--vw) / var(--base-vw));
    font-size: calc(14 * var(--vw) / var(--base-vw));
  }

  .sn-hero {
    height: var(--height-hero-mo);
  }

  .sn-intro {
    height: var(--height-intro-mo);
  }

  .sn-features {
    height: var(--height-features-mo);
  }

  .sn-howto {
    height: var(--height-howto-mo);
  }

  .sn-hero .sn-btns {
    left: 0%;
    bottom: calc(72 * var(--vw) / var(--base-vw));
    padding: 0 calc(24 * var(--vw) / var(--base-vw));
    gap: calc(10 * var(--vw) / var(--base-vw));
    margin: 0;
  }

  .sn-hero .star-1,
  .sn-hero .star-2,
  .sn-hero .rabbit {
    display: none;
  }

  .sn-howto .sn-btns {
    left: 0%;
    bottom: calc(80 * var(--vw) / var(--base-vw));
    padding: 0 calc(44 * var(--vw) / var(--base-vw));
    gap: calc(10 * var(--vw) / var(--base-vw));
    margin: 0;
  }
}