:root {
    --color-primary-bg: #ffffff;
    --color-primary-text: #111827;
    --color-secondary-bg: #fdf2f8;
    --color-secondary-text: #374151;
    --color-dark-bg: #18181b;
    --color-dark-text: #f9fafb;
    --color-accent: #db2777;
    --color-accent-hover: #be185d;
    --color-accent-text: #ffffff;
    --color-card-border: #fce7f3;
    --font-primary: 'Noto Sans KR', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-primary-bg);
    color: var(--color-primary-text);
    margin: 0;
    line-height: 1.65;
    word-break: keep-all;
    overflow-wrap: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.3;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

h1 {
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

h3 {
    font-size: clamp(1.35rem, 2.5vw, 1.85rem);
}

h4 {
    font-size: clamp(1.15rem, 2vw, 1.45rem);
}

h5 {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
}

h6 {
    font-size: clamp(0.9rem, 1.2vw, 1.05rem);
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
    color: inherit;
}

a,
a:hover,
a:focus {
    text-decoration: none;
    color: inherit;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button,
.btn {
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.85rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    h4 {
        font-size: 1.1rem;
    }

    h5 {
        font-size: 1rem;
    }

    body {
        font-size: 0.95rem;
    }

    a[href^="mailto:"],
    a[href^="http"],
    .text-break-mobile {
        font-size: 0.9rem;
        word-break: break-all;
    }
}

/* ===== header ===== */
#header {
    overflow: hidden;
    background-color: var(--color-dark-bg);
    border-bottom: 1px solid rgba(219, 39, 119, 0.2);
    z-index: 1000;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    min-height: 72px;
}

.header-nav-left {
    flex: 1;
}

.header-brand-center {
    flex: 1;
}

.header-nav-right {
    flex: 1;
}

.header-logo {
    max-width: 48px;
    height: auto;
    object-fit: contain;
}

.site-title {
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: var(--color-dark-text);
}

.site-title-mobile {
    font-size: 0.8rem;
    letter-spacing: -0.01em;
    color: var(--color-dark-text);
}

.header-link {
    color: #f9fafb !important;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease-in-out;
    hyphens: auto;
}

.header-link:hover {
    color: var(--color-accent) !important;
}

.header-cta-link {
    color: var(--color-accent) !important;
    font-weight: 700;
}

.header-cta-link:hover {
    color: var(--color-accent-hover) !important;
}

.header-email-btn {
    background-color: var(--color-accent);
    color: var(--color-accent-text);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    transition: background-color 0.2s ease-in-out;
}

.header-email-btn:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-accent-text);
}

.header-toggle-btn {
    background: transparent;
    cursor: pointer;
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-dark-bg);
    z-index: 2000;
}

.mobile-menu-overlay.is-open {
    display: flex;
    flex-direction: column;
}

.mobile-nav-link {
    color: var(--color-dark-text);
    text-decoration: none;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-nav-link:hover {
    color: var(--color-accent);
    background-color: rgba(219, 39, 119, 0.1);
}

.mobile-cta-link {
    color: var(--color-accent);
}

.mobile-contact-btn {
    background-color: var(--color-accent);
    border: none;
    border-radius: 12px;
}

.mobile-contact-btn:hover {
    background-color: var(--color-accent-hover);
}

@media (max-width: 767.98px) {
    .header-container {
        min-height: 60px;
    }

    .site-title {
        font-size: 0.8rem;
    }
}

/* ===== hero ===== */
:root {
    --color-primary-bg: #ffffff;
    --color-primary-text: #111827;
    --color-secondary-bg: #fdf2f8;
    --color-secondary-text: #374151;
    --color-dark-bg: #18181b;
    --color-dark-text: #f9fafb;
    --color-accent: #db2777;
    --color-accent-hover: #be185d;
    --color-accent-text: #ffffff;
    --color-card-border: #fce7f3;
}

#hero {
    overflow: hidden;
    background-color: var(--color-secondary-bg);
    width: 100%;
}

.text-accent {
    color: var(--color-accent) !important;
}

.bg-accent {
    background-color: var(--color-accent) !important;
}

.border-pink {
    border-color: var(--color-card-border) !important;
}

.btn-primary-custom {
    background-color: var(--color-accent);
    color: var(--color-accent-text);
    border: 1px solid var(--color-accent);
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.25s ease-in-out;
}

.btn-primary-custom:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-accent-text);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

.hero-visual-wrapper {
    max-width: 580px;
    width: 100%;
}

.hero-img {
    height: 380px;
    object-fit: cover;
}

.badge-icon {
    width: 40px;
    height: 40px;
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 1.125rem !important;
        line-height: 1.25 !important;
    }

    .hero-desc {
        font-size: 0.9rem !important;
    }

    .hero-img {
        height: 260px;
    }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .hero-title {
        font-size: 1.75rem;
    }
}

@media (min-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
}

/* ===== about ===== */
#about {
    position: relative;
    overflow: hidden;
}

#about .about-image-wrapper {
    max-width: 100%;
}

#about .about-image-frame img {
    transition: transform 0.4s ease;
}

#about .about-image-frame:hover img {
    transform: scale(1.02);
}

#about .about-badge-card {
    max-width: 280px;
}

@media (max-width: 767.98px) {
    #about h2 {
        font-size: 1rem;
        line-height: 1.25;
    }

    #about h3 {
        font-size: 0.875rem;
        line-height: 1.2;
    }

    #about .about-badge-card {
        position: static !important;
        margin-top: 1rem;
        width: 100%;
        max-width: 100%;
    }

    #about .about-image-frame img {
        height: 300px !important;
    }
}

/* ===== player_emotions ===== */
.emotions-section {
    width: 100%;
}

.emotions-section .emotion-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    cursor: pointer;
}

.emotions-section .emotion-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(219, 39, 119, 0.12) !important;
    border-color: var(--color-accent) !important;
}

.emotions-section .emotion-img {
    transition: transform 0.5s ease;
}

.emotions-section .emotion-card:hover .emotion-img {
    transform: scale(1.06);
}

@media (max-width: 767.98px) {
    .emotions-section h2 {
        font-size: 1rem !important;
    }

    .emotions-section h3 {
        font-size: 0.875rem !important;
    }
}

/* ===== attention_management ===== */
#attention-management {
    position: relative;
    width: 100%;
}

#attention-management .card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#attention-management .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(219, 39, 119, 0.08);
}

@media (max-width: 767.98px) {
    #attention-management h2 {
        font-size: 1rem !important;
        line-height: 1.3;
    }

    #attention-management h3 {
        font-size: 0.875rem !important;
        line-height: 1.2;
    }

    #attention-management p {
        font-size: 0.8125rem !important;
    }
}

/* ===== narrative_world ===== */
#narrative-world .js-narrative-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -10px rgba(219, 39, 119, 0.15);
    border-color: var(--color-accent) !important;
}

@media (max-width: 767.98px) {
    #narrative-world h2 {
        font-size: 1rem !important;
        line-height: 1.25;
    }

    #narrative-world h3 {
        font-size: 0.875rem !important;
        line-height: 1.2;
    }
}

/* ===== player_behavior ===== */
#player-behavior .js-behavior-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(219, 39, 119, 0.08);
}

@media (max-width: 767.98px) {
    #player-behavior h2 {
        font-size: 1rem;
        line-height: 1.2;
        hyphens: auto;
    }

    #player-behavior h3 {
        font-size: 0.875rem;
        line-height: 1.2;
        hyphens: auto;
    }
}

/* ===== situation_design ===== */
#situation-design {
    overflow: hidden;
}

#situation-design .chain-step-card {
    background-color: var(--color-secondary-bg);
    color: var(--color-secondary-text);
    transition: all 0.25s ease-in-out;
    border: 1px solid var(--color-card-border) !important;
    cursor: pointer;
}

#situation-design .chain-step-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-accent) !important;
    color: var(--color-primary-text);
}

#situation-design .chain-step-card.is-active {
    background-color: var(--color-dark-bg);
    color: var(--color-dark-text);
    border-color: var(--color-accent) !important;
    box-shadow: 0 8px 20px rgba(219, 39, 119, 0.2);
}

#situation-design .step-icon-wrap {
    width: 44px;
    height: 44px;
    background-color: #ffffff;
    color: var(--color-accent);
    font-size: 1.15rem;
    transition: all 0.25s ease;
}

#situation-design .chain-step-card.is-active .step-icon-wrap {
    background-color: var(--color-accent);
    color: var(--color-accent-text);
}

#situation-design .step-num {
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 700;
}

#situation-design .chain-step-card.is-active .step-num {
    color: var(--color-card-border);
}

#situation-design .step-title {
    font-size: 0.85rem;
    letter-spacing: -0.01em;
}

@media (max-width: 767px) {
    #situation-design h2 {
        font-size: 1rem !important;
        line-height: 1.25;
        hyphens: auto;
    }

    #situation-design h3 {
        font-size: 0.875rem !important;
        line-height: 1.25;
        hyphens: auto;
    }

    #situation-design .step-title {
        font-size: 0.75rem;
    }
}

/* ===== psychology_interaction ===== */
#psychology-interaction {
    overflow: hidden;
}

.js-psy-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    hyphens: auto;
    word-break: keep-all;
}

.js-psy-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent) !important;
    box-shadow: 0 10px 24px rgba(219, 39, 119, 0.08) !important;
}

@media (max-width: 767.98px) {
    #psychology-interaction h2 {
        font-size: 1rem !important;
        line-height: 1.25 !important;
    }

    #psychology-interaction h3 {
        font-size: 0.875rem !important;
        line-height: 1.25 !important;
    }

    #psychology-interaction p {
        font-size: 0.8125rem !important;
    }
}

/* ===== game_scenarios ===== */
#game-scenarios {
    position: relative;
    width: 100%;
    hyphens: auto;
}

#game-scenarios .card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

#game-scenarios .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(219, 39, 119, 0.08) !important;
}

@media (max-width:767.98px) {
    #game-scenarios h2 {
        font-size: 1rem !important;
        line-height: 1.2 !important;
    }

    #game-scenarios h3 {
        font-size: 0.875rem !important;
        line-height: 1.2 !important;
    }
}

/* ===== world_immersion ===== */
#world-immersion .js-immersion-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

#world-immersion .js-immersion-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(219, 39, 119, 0.12) !important;
    border-color: var(--color-accent) !important;
}

@media (max-width: 767.98px) {
    #world-immersion h2 {
        font-size: 1rem !important;
    }

    #world-immersion h3 {
        font-size: 0.875rem !important;
    }
}

/* ===== game_moments_analysis ===== */
#game-moments {
    overflow: hidden;
    background-color: var(--color-primary-bg);
    hyphens: auto;
    width: 100%
}

.game-moments-tag {
    background-color: var(--color-secondary-bg);
    border: 1px solid var(--color-card-border)
}

.text-primary-heading {
    color: var(--color-primary-text)
}

.text-secondary-desc {
    color: var(--color-secondary-text)
}

.text-subdued {
    color: var(--color-secondary-text);
    opacity: 0.85
}

.text-accent {
    color: var(--color-accent)
}

.bg-accent-light {
    background-color: var(--color-secondary-bg)
}

.border-card {
    border: 1px solid var(--color-card-border);
    border-radius: 12px;
    overflow: hidden;
    transition: transform .2s ease, box-shadow .2s ease
}

.game-analysis-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(219, 39, 119, 0.08) !important
}

.img-fixed-height {
    height: 220px;
    width: 100%;
    object-fit: cover;
    display: block
}

.card-meta-box {
    background-color: var(--color-secondary-bg);
    border-left: 3px solid var(--color-accent)
}

.feature-icon-wrapper {
    width: 48px;
    height: 48px;
    background-color: var(--color-secondary-bg);
    border: 1px solid var(--color-card-border)
}

@media(max-width:767.98px) {
    #game-moments h2 {
        font-size: 1rem;
        line-height: 1.2
    }

    #game-moments h3 {
        font-size: 0.875rem;
        line-height: 1.25
    }

    .img-fixed-height {
        height: 180px
    }
}

/* ===== emotional_facts ===== */
#emotional-facts {
    width: 100%;
    hyphens: auto;
    word-break: keep-all;
}

#emotional-facts h2 {
    font-size: 2rem;
    line-height: 1.3;
}

#emotional-facts h3 {
    font-size: 1.25rem;
    line-height: 1.4;
}

#emotional-facts .rounded-4 {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

#emotional-facts .rounded-4:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(219, 39, 119, 0.08);
}

@media (max-width: 767.98px) {
    #emotional-facts h2 {
        font-size: 1rem !important;
        line-height: 1.25 !important;
    }

    #emotional-facts h3 {
        font-size: 0.875rem !important;
        line-height: 1.25 !important;
    }

    #emotional-facts p {
        font-size: 0.8125rem !important;
    }
}

/* ===== evolution_timeline ===== */
#evolution {
    position: relative;
}

.timeline-horizontal-container {
    position: relative;
}

.timeline-track {
    position: absolute;
    top: 44px;
    left: 5%;
    width: 90%;
    height: 2px;
    background: linear-gradient(90deg, rgba(219, 39, 119, 0.2) 0%, rgba(219, 39, 119, 0.8) 50%, rgba(219, 39, 119, 0.2) 100%);
    z-index: 0;
}

.timeline-step-card {
    transition: transform 0.25s ease, border-color 0.25s ease;
    z-index: 1;
}

.timeline-step-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent) !important;
}

.js-email-link:hover {
    background-color: var(--color-accent-hover) !important;
    color: #ffffff !important;
}

@media (max-width: 767.98px) {
    #evolution h2 {
        font-size: 1.25rem !important;
        line-height: 1.2;
    }

    #evolution h3 {
        font-size: 1rem !important;
    }
}

/* ===== footer ===== */
.site-footer {
    width: 100%;
    background-color: var(--color-dark-bg);
    color: var(--color-dark-text);
    font-family: inherit;
}

.footer-logo {
    max-width: 48px;
    height: auto;
    object-fit: contain;
}

.btn-custom-accent {
    background-color: var(--color-accent);
    color: var(--color-accent-text);
    border: none;
    font-weight: 600;
    border-radius: 6px;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-custom-accent:hover,
.btn-custom-accent:focus {
    background-color: var(--color-accent-hover);
    color: var(--color-accent-text);
    transform: translateY(-1px);
}

.btn-custom-accent i {
    color: var(--color-accent-text);
}

.footer-policy-links .footer-link {
    transition: color 0.2s ease;
}

.footer-policy-links .footer-link:hover,
.footer-policy-links .footer-link:focus {
    color: var(--color-accent) !important;
}

@media (max-width: 767.98px) {
    .site-footer {
        text-align: center;
    }

    .footer-policy-links {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        align-items: center;
    }

    .footer-policy-links .list-inline-item {
        margin-right: 0 !important;
    }
}