/**
 * CSS Reset
 * 숨카(SUMCAR) 프로젝트
 *
 * 브라우저 기본 스타일 초기화 및 베이스 스타일
 */

/* ========================================
   Box Sizing
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* ========================================
   Document & Body
   ======================================== */
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #FFFFFF;
    color: var(--c-text, #FFFFFF);
    background-color: #0E0E0E;
    background-color: var(--c-bg, #0E0E0E);
    overflow-x: hidden;
}

/* ========================================
   Headings
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    margin: 0;
    padding: 0;
    font-weight: 700;
    font-weight: var(--fw-bold, 700);
    line-height: 1.2;
}

h1 {
    font-size: 40px;
    font-size: var(--fs-h1, 40px);
    line-height: 48px;
    line-height: var(--lh-h1, 48px);
}

h2 {
    font-size: 32px;
    font-size: var(--fs-h2, 32px);
    line-height: 40px;
    line-height: var(--lh-h2, 40px);
}

h3 {
    font-size: 24px;
    font-size: var(--fs-h3, 24px);
    line-height: 32px;
    line-height: var(--lh-h3, 32px);
}

h4 {
    font-size: 20px;
    font-size: var(--fs-h4, 20px);
    line-height: 28px;
    line-height: var(--lh-h4, 28px);
}

/* ========================================
   Paragraph
   ======================================== */
p {
    margin: 0;
    padding: 0;
}

/* ========================================
   Links
   ======================================== */
a {
    color: #00B8C6;
    color: var(--c-primary, #00B8C6);
    text-decoration: none;
    transition: color 250ms ease;
    transition: color var(--transition-base, 250ms ease);
}

a:hover {
    color: #33C9D5;
    color: var(--c-primary-light, #33C9D5);
}

a:focus {
    outline: 2px solid #00B8C6;
    outline: 2px solid var(--c-primary, #00B8C6);
    outline-offset: 2px;
}

/* ========================================
   Lists
   ======================================== */
ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* ========================================
   Images
   ======================================== */
img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
}

/* ========================================
   Buttons
   ======================================== */
button {
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
}

button:focus {
    outline: 2px solid #00B8C6;
    outline: 2px solid var(--c-primary, #00B8C6);
    outline-offset: 2px;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* ========================================
   Form Elements
   ======================================== */
input,
textarea,
select {
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
}

input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #00B8C6;
    outline: 2px solid var(--c-primary, #00B8C6);
    outline-offset: 2px;
}

/* ========================================
   Tables
   ======================================== */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* ========================================
   Semantic HTML5
   ======================================== */
article, aside, details, figcaption, figure,
footer, header, hgroup, main, menu, nav, section {
    display: block;
}

/* ========================================
   Focus Visible (Modern Browsers)
   ======================================== */
:focus {
    outline: 2px solid #00B8C6;
    outline: 2px solid var(--c-primary, #00B8C6);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 2px solid #00B8C6;
    outline: 2px solid var(--c-primary, #00B8C6);
    outline-offset: 2px;
}

/* ========================================
   Skip Link (Accessibility)
   ======================================== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #00B8C6;
    background: var(--c-primary, #00B8C6);
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
}

/* ========================================
   Screen Reader Only
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   Selection
   ======================================== */
::selection {
    background-color: #00B8C6;
    background-color: var(--c-primary, #00B8C6);
    color: #FFFFFF;
}

::-moz-selection {
    background-color: #00B8C6;
    background-color: var(--c-primary, #00B8C6);
    color: #FFFFFF;
}

/* ========================================
   Smooth Scroll
   ======================================== */
html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}