/* public/assets/css/site.css */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #17438c;
    --color-primary-soft: #eaf1ff;
    --color-primary-faint: #f4f7ff;
    --color-primary-alpha: rgba(37, 99, 235, 0.14);
    --color-navy: #0b1f3a;
    --color-navy-soft: #112b4d;
    --color-navy-light: #18385e;
    --color-text: #172033;
    --color-text-soft: #334155;
    --color-muted: #64748b;
    --color-muted-light: #94a3b8;
    --color-border: #dbe4ef;
    --color-border-strong: #c8d5e5;
    --color-background: #f5f7fa;
    --color-surface: #ffffff;
    --color-surface-soft: #f8fafc;
    --color-success: #0f766e;
    --color-success-soft: #e7f6f3;
    --color-header-background: rgba(255, 255, 255, 0.96);
    --color-dark-border: rgba(255, 255, 255, 0.13);
    --color-dark-surface: rgba(255, 255, 255, 0.07);
    --color-dark-surface-strong: rgba(255, 255, 255, 0.11);
    --color-dark-text: #f2f7ff;
    --color-dark-muted: #adbed3;
    --color-white-alpha: rgba(255, 255, 255, 0.72);
    --color-white-faint: rgba(255, 255, 255, 0.05);
    --color-shadow: rgba(15, 35, 62, 0.08);
    --color-shadow-strong: rgba(11, 31, 58, 0.2);
    --color-hero-glow: rgba(37, 99, 235, 0.14);
    --color-hero-glow-soft: rgba(23, 67, 140, 0.08);
    --max-width: 1220px;
    --header-height: 76px;
    --section-space: 112px;
    --radius-small: 6px;
    --radius: 10px;
    --radius-large: 16px;
    --shadow-small: 0 8px 24px var(--color-shadow);
    --shadow-medium: 0 20px 48px var(--color-shadow);
    --shadow-dashboard: 0 32px 72px var(--color-shadow-strong);
    --transition: 180ms ease;
    --font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 24px);
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-surface);
    -webkit-text-size-adjust: 100%;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    color: var(--color-text);
    background: var(--color-surface);
    word-break: keep-all;
}

body.nav-open {
    overflow: hidden;
}

main {
    display: block;
}

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

button,
input,
textarea,
select {
    font: inherit;
}

button {
    color: inherit;
}

button:disabled {
    cursor: not-allowed;
}

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

h1,
h2,
h3,
p {
    margin-top: 0;
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

.container {
    width: min(calc(100% - 48px), var(--max-width));
    margin-inline: auto;
}

.site-main {
    flex: 1;
}

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

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    padding: 10px 16px;
    color: var(--color-surface);
    background: var(--color-primary-dark);
    border-radius: var(--radius-small);
    transform: translateY(-160%);
    transition: transform var(--transition);
}

.skip-link:focus {
    transform: translateY(0);
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}

section[id] {
    scroll-margin-top: calc(var(--header-height) + 20px);
}

.section {
    padding: var(--section-space) 0;
}

.section--muted {
    background: var(--color-background);
}

.section--navy {
    color: var(--color-dark-text);
    background: var(--color-navy);
}

.eyebrow {
    margin-bottom: 16px;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section--navy .eyebrow,
.contact-cta .eyebrow {
    color: var(--color-dark-muted);
}

.section-heading {
    margin-bottom: 56px;
}

.section-heading h2,
.permissions__content h2,
.contact-cta h2 {
    margin-bottom: 22px;
    font-size: clamp(2.25rem, 4vw, 3.5rem);
    line-height: 1.18;
    letter-spacing: -0.045em;
}

.section-heading > p:last-child {
    margin-bottom: 0;
    color: var(--color-muted);
    font-size: 1.0625rem;
}

.section-heading--center {
    max-width: 840px;
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

.section-heading--split {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.7fr);
    gap: 56px;
    align-items: end;
}

.section-heading--split h2 {
    margin-bottom: 0;
}

.section-heading--split > p {
    padding-bottom: 4px;
}

.section-heading--light {
    max-width: 800px;
}

.section-heading--light > p:last-child {
    color: var(--color-dark-muted);
}

.button {
    min-height: 48px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: var(--radius-small);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    transition:
        color var(--transition),
        background-color var(--transition),
        border-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

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

.button:disabled {
    opacity: 0.66;
    transform: none;
}

.button--small {
    min-height: 42px;
    padding-inline: 18px;
    font-size: 0.9375rem;
}

.button--large {
    min-height: 56px;
    padding-inline: 28px;
    font-size: 1rem;
}

.button--primary {
    color: var(--color-surface);
    background: var(--color-primary);
    box-shadow: 0 10px 24px var(--color-primary-alpha);
}

.button--primary:hover {
    background: var(--color-primary-dark);
}

.button--secondary {
    color: var(--color-primary-dark);
    background: var(--color-surface);
    border-color: var(--color-border-strong);
}

.button--secondary:hover {
    border-color: var(--color-primary);
}

.button--light {
    color: var(--color-navy);
    background: var(--color-surface);
}

.button--outline-light {
    color: var(--color-surface);
    border-color: var(--color-white-alpha);
    background: transparent;
}

.button--outline-light:hover {
    background: var(--color-white-faint);
    border-color: var(--color-surface);
}

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    height: var(--header-height);
    background: var(--color-header-background);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.site-brand {
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    white-space: nowrap;
}

.site-brand__logo {
    width: auto;
    height: 34px;
    flex: 0 0 auto;
    object-fit: contain;
}

.site-brand__text {
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(28px, 4vw, 64px);
}

.site-nav__links,
.site-nav__actions {
    display: flex;
    align-items: center;
}

.site-nav__links {
    gap: clamp(22px, 2.5vw, 36px);
}

.site-nav__links a {
    position: relative;
    padding: 8px 0;
    color: var(--color-text-soft);
    font-size: 0.9375rem;
    font-weight: 650;
}

.site-nav__links a::after {
    position: absolute;
    right: 0;
    bottom: 2px;
    left: 0;
    height: 2px;
    content: "";
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
}

.site-nav__links a:hover::after,
.site-nav__links a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.site-nav__actions {
    gap: 12px;
}

.nav-login {
    min-height: 42px;
    padding: 0 10px;
    border: 0;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--color-muted);
    background: transparent;
    font-size: 0.9375rem;
    font-weight: 650;
    text-decoration: none;
}

.nav-login span {
    padding: 2px 6px;
    color: var(--color-muted);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    font-size: 0.6875rem;
}

.nav-toggle {
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    background: var(--color-surface);
}

.nav-toggle__line {
    width: 19px;
    height: 2px;
    background: var(--color-text);
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-of-type(2) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-of-type(3) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-of-type(4) {
    transform: translateY(-7px) rotate(-45deg);
}

.site-footer {
    padding: 72px 0 28px;
    color: var(--color-dark-muted);
    background: var(--color-navy);
}

.site-footer__grid {
    padding-bottom: 52px;
    display: grid;
    grid-template-columns: minmax(250px, 1fr) minmax(440px, 0.8fr);
    gap: 72px;
}

.site-brand--footer {
    color: var(--color-surface);
}

.site-brand--footer .site-brand__logo {
    height: 30px;
}

.site-footer__brand p {
    margin: 18px 0 0;
    font-size: 0.9375rem;
}

.site-footer__nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.site-footer__nav > div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}

.site-footer__nav strong {
    margin-bottom: 5px;
    color: var(--color-surface);
    font-size: 0.875rem;
}

.site-footer__nav a,
.site-footer__nav span {
    color: var(--color-dark-muted);
    font-size: 0.875rem;
}

.site-footer__nav a:hover {
    color: var(--color-surface);
}

.site-footer__nav span[aria-disabled="true"] {
    opacity: 0.68;
}

.site-footer__bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-dark-border);
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.site-footer__bottom small {
    font-size: 0.75rem;
}

.site-footer__meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.site-footer__admin-link {
    color: var(--color-dark-muted);
    font-size: 0.6875rem;
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 3px;
}

.site-footer__admin-link:hover,
.site-footer__admin-link:focus-visible {
    color: var(--color-surface);
    text-decoration-color: currentColor;
}

.message-page {
    min-height: 62vh;
    padding: var(--section-space) 0;
    display: flex;
    align-items: center;
    text-align: center;
}

.message-page h1 {
    margin-bottom: 12px;
    color: var(--color-primary);
    font-size: clamp(3rem, 8vw, 5rem);
}

.message-page p {
    margin-bottom: 24px;
    color: var(--color-muted);
    font-size: 1.0625rem;
}

.message-page a {
    color: var(--color-primary-dark);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.mobile-break {
    display: none;
}

@media (max-width: 1024px) {
    :root {
        --section-space: 96px;
    }

    .section-heading--split {
        grid-template-columns: 1fr;
        gap: 20px;
        align-items: start;
    }

    .section-heading--split > p {
        padding-bottom: 0;
    }
}

@media (max-width: 900px) {
    :root {
        --header-height: 68px;
    }

    .site-header__inner {
        position: relative;
        flex-wrap: wrap;
    }

    html:not(.js) .site-header {
        height: auto;
    }

    html:not(.js) .site-header__inner {
        min-height: var(--header-height);
        padding-block: 10px;
    }

    .js .nav-toggle {
        display: flex;
    }

    .site-nav {
        width: 100%;
        order: 3;
        padding: 20px 0 22px;
        flex-direction: column;
        align-items: stretch;
        gap: 20px;
        background: var(--color-surface);
    }

    .js .site-nav {
        position: absolute;
        top: calc(100% + 10px);
        right: 0;
        left: 0;
        width: auto;
        padding: 18px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius);
        display: none;
        box-shadow: var(--shadow-medium);
    }

    .js .site-nav.is-open {
        display: flex;
    }

    .site-nav__links {
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
    }

    .site-nav__links a {
        min-height: 46px;
        padding: 11px 10px;
        display: flex;
        align-items: center;
        border-bottom: 1px solid var(--color-border);
    }

    .site-nav__links a::after {
        display: none;
    }

    .site-nav__actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .nav-login {
        justify-content: center;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-small);
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: 44px;
    }
}

@media (max-width: 640px) {
    :root {
        --section-space: 76px;
    }

    .container {
        width: min(calc(100% - 32px), var(--max-width));
    }

    .section-heading {
        margin-bottom: 40px;
    }

    .section-heading h2,
    .permissions__content h2,
    .contact-cta h2 {
        margin-bottom: 18px;
        font-size: clamp(2rem, 9vw, 2.625rem);
    }

    .section-heading > p:last-child {
        font-size: 1rem;
    }

    .desktop-break {
        display: none;
    }

    .mobile-break {
        display: initial;
    }

    .site-footer {
        padding-top: 56px;
    }

    .site-footer__grid {
        padding-bottom: 40px;
    }

    .site-footer__nav {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 32px;
    }

    .site-footer__bottom {
        flex-direction: column;
        gap: 8px;
    }

    .site-footer__meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }
}

@media (max-width: 430px) {
    .site-brand {
        max-width: calc(100vw - 92px);
        font-size: 0.9375rem;
    }

    .site-brand__logo {
        height: 30px;
    }

    .site-nav__actions {
        grid-template-columns: 1fr;
    }

    .button--large {
        width: 100%;
    }
}

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

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}