/*
Theme Name: Design Sprint
Theme URI: https://designsprint.io
Author: Design Sprint Team
Author URI: https://designsprint.io
Description: Custom WordPress theme for Design Sprint agency.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: design-sprint
Tags: custom-theme, agency, business
*/

@charset "utf-8";

/* =========================================
   1. Design System (Variables)
   ========================================= */
:root {
    /* Colors */
    --color-primary: #0F172A;
    /* Deep Navy (신뢰) */
    --color-secondary: #2563EB;
    /* Bright Blue (강조/액션) */
    --color-text-main: #1E293B;
    /* Dark Slate (본문) */
    --color-text-sub: #64748B;
    /* Cool Gray (서브) */
    --color-bg-light: #F8FAFC;
    /* Light Gray (배경) */
    --color-border: #E2E8F0;
    /* Border */
    --color-white: #FFFFFF;

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* =========================================
   2. Global Layout & Utilities
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
    /* 섹션 상하 여백 */
}

.bg-gray {
    background-color: var(--color-bg-light);
}

.text-center {
    text-align: center;
}

.text-gray {
    color: var(--color-text-sub);
}

.mt-60 {
    margin-top: 60px;
}

/* Grid System */
.grid {
    display: grid;
    gap: 32px;
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* =========================================
   3. Components (Buttons, Tags)
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 24px;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #1E293B;
    /* Slightly lighter */
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-bg-light);
}

.btn-lg {
    height: 56px;
    padding: 0 32px;
    font-size: 18px;
}

/* =========================================
   4. Header & Navigation
   ========================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-list a {
    font-weight: 500;
    color: var(--color-text-main);
    transition: color 0.2s;
}

.nav-list a:hover {
    color: var(--color-secondary);
}

.mobile-menu-btn {
    display: none;
    /* Desktop default hidden */
}

/* =========================================
   5. Hero Section
   ========================================= */
.hero-section {
    padding-top: 180px;
    /* Header height + alpha */
    padding-bottom: 120px;
    text-align: center;
}

.tag {
    display: inline-block;
    padding: 6px 12px;
    background-color: #EFF6FF;
    /* Very light blue */
    color: var(--color-secondary);
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: 24px;
    word-break: keep-all;
}

.hero-desc {
    font-size: 20px;
    color: var(--color-text-sub);
    margin-bottom: 48px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* =========================================
   6. Problem Section (Cards)
   ========================================= */
.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 60px;
    line-height: 1.3;
}

.problem-card {
    background: var(--color-white);
    padding: 40px 32px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: transparent;
}

.card-icon {
    font-size: 40px;
    margin-bottom: 24px;
}

.card-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.card-text {
    color: var(--color-text-sub);
    line-height: 1.6;
}

/* =========================================
   7. Solution Section (Zigzag)
   ========================================= */
.section-desc {
    text-align: center;
    font-size: 18px;
    color: var(--color-text-sub);
    margin-top: -40px;
    /* title과의 간격 조정 */
    margin-bottom: 80px;
}

.solution-list {
    display: flex;
    flex-direction: column;
    gap: 120px;
}

.solution-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 80px;
}

.solution-item.reverse {
    flex-direction: row-reverse;
}

.solution-text {
    flex: 1;
}

.step-label {
    display: block;
    color: var(--color-secondary);
    font-weight: 700;
    margin-bottom: 16px;
}

.solution-text h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.solution-text p {
    font-size: 18px;
    color: var(--color-text-sub);
    line-height: 1.7;
}

.solution-image {
    flex: 1;
    height: 400px;
    background-color: #E2E8F0;
    /* Placeholder color */
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-sub);
    font-weight: 500;
}

/* =========================================
   8. Proof Section
   ========================================= */
.stat-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    margin-bottom: 100px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: var(--color-secondary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: var(--color-text-main);
    font-weight: 600;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background-color: var(--color-border);
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.logo-box {
    height: 100px;
    background-color: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #94A3B8;
    font-weight: 600;
}

/* =========================================
   9. Bottom CTA
   ========================================= */
.bottom-cta-section {
    padding: 120px 0;
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.cta-desc {
    font-size: 20px;
    color: var(--color-text-sub);
    margin-bottom: 48px;
}

/* =========================================
   10. Footer
   ========================================= */
.footer {
    background-color: var(--color-primary);
    color: #94A3B8;
    /* Light Gray for dark bg */
    padding: 80px 0 40px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer-logo {
    display: block;
    font-size: 24px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 24px;
}

.footer-desc {
    line-height: 1.8;
    font-size: 14px;
}

.tech-stack {
    margin-top: 16px;
    font-size: 12px;
    color: #64748B;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.link-group h4 {
    color: var(--color-white);
    margin-bottom: 24px;
    font-size: 16px;
}

.link-group ul li {
    margin-bottom: 12px;
}

.link-group ul li a:hover {
    color: var(--color-white);
}

.copyright {
    text-align: center;
    font-size: 14px;
    border-top: 1px solid #1E293B;
    padding-top: 32px;
}

/* =========================================
   11. Responsive (Mobile)
   ========================================= */
@media (max-width: 768px) {

    /* Layout */
    .hero-title {
        font-size: 36px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .solution-item {
        flex-direction: column;
        gap: 40px;
    }

    .solution-item.reverse {
        flex-direction: column;
    }

    .stat-bar {
        flex-direction: column;
        gap: 40px;
    }

    .stat-divider {
        display: none;
    }

    .logo-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-container {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 40px;
    }

    /* Nav (Mobile) */
    .nav {
        display: none;
    }

    /* 심플하게 숨김 처리 (JS 필요 시 추가) */
    .header-action {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }
}

/* =========================================
   12. Page: Work (List)
   ========================================= */

/* Work Hero */
.work-hero {
    padding-top: 160px;
    padding-bottom: 80px;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 24px;
    line-height: 1.3;
}

.page-desc {
    font-size: 18px;
    color: var(--color-text-sub);
    line-height: 1.6;
}

/* Filter Navigation */
.filter-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    border: 1px solid var(--color-border);
    background-color: transparent;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text-sub);
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.filter-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* Work Grid Layout */
.grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

/* Work Card Design */
.work-card {
    display: block;
    group: pointer;
    /* Custom cursor trigger if needed */
}

.work-thumb {
    position: relative;
    width: 100%;
    height: 360px;
    /* 썸네일 높이 고정 */
    background-color: #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.work-card:hover .work-thumb {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.thumb-placeholder {
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
    font-weight: 500;
    font-size: 18px;
}

/* 성과 배지 (오른쪽 상단) */
.work-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.work-info {
    padding: 0 8px;
}

.work-meta {
    display: flex;
    gap: 12px;
    font-size: 14px;
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: 12px;
}

.work-client {
    color: var(--color-text-sub);
    font-weight: 400;
}

.work-client::before {
    content: "•";
    margin-right: 12px;
    color: var(--color-border);
}

.work-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    word-break: keep-all;
}

.work-card:hover .work-title {
    color: var(--color-secondary);
    transition: color 0.2s;
}

.work-summary {
    font-size: 16px;
    color: var(--color-text-sub);
    line-height: 1.6;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* 2줄까지만 표시 */
    -webkit-box-orient: vertical;
}

/* Mobile Responsive for Work */
@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
        /* 모바일 1단 */
    }

    .work-thumb {
        height: 240px;
        /* 모바일에서 썸네일 높이 축소 */
    }

    .page-title {
        font-size: 32px;
    }
}

/* =========================================
   13. Page: Work Detail
   ========================================= */

/* Detail Hero */
.detail-hero {
    padding-top: 160px;
    padding-bottom: 80px;
    background-color: #F8FAFC;
    /* 배경색으로 구분 */
}

/* 프로젝트 메타 정보 그리드 */
.project-meta-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    background: var(--color-white);
    padding: 32px;
    border-radius: 12px;
    margin: 60px auto;
    border: 1px solid var(--color-border);
    max-width: 1000px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.meta-label {
    font-size: 13px;
    color: var(--color-text-sub);
    font-weight: 600;
    text-transform: uppercase;
}

.meta-value {
    font-size: 18px;
    color: var(--color-text-main);
    font-weight: 500;
}

.meta-value.highlight {
    color: var(--color-secondary);
    font-weight: 700;
}

/* 상세 페이지 본문 너비 제한 (가독성) */
.content-width {
    max-width: 800px;
    margin: 0 auto;
}

.content-subtitle {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.content-text {
    font-size: 18px;
    color: #334155;
    line-height: 1.8;
    margin-bottom: 32px;
}

/* 체크 리스트 스타일 */
.check-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    font-size: 18px;
    color: var(--color-text-main);
}

.check-list li::before {
    content: "✔";
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--color-secondary);
    font-weight: bold;
}

/* 프로세스 블록 */
.process-block {
    margin-bottom: 80px;
}

.step-badge {
    display: inline-block;
    color: var(--color-secondary);
    font-weight: 700;
    margin-bottom: 12px;
}

.process-image {
    width: 100%;
    height: auto;
    min-height: 400px;
    background-color: #FFFFFF;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 32px;
    border: 1px solid var(--color-border);
    color: #CBD5E1;
}

/* 결과 숫자 박스 */
.result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 80px;
}

.result-box {
    text-align: center;
    padding: 40px 24px;
    background-color: var(--color-bg-light);
    border-radius: 16px;
}

.result-num {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: var(--color-secondary);
    margin-bottom: 12px;
}

.result-label {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.result-desc {
    font-size: 14px;
    color: var(--color-text-sub);
}

/* 클라이언트 리뷰 */
.client-review {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background-color: #FFF;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.review-text {
    font-size: 20px;
    font-style: italic;
    color: var(--color-text-main);
    line-height: 1.6;
    margin-bottom: 24px;
}

.review-author {
    font-weight: 600;
    color: var(--color-text-sub);
}

/* Detail Image Placeholder */
.detail-main-image {
    width: 100%;
    height: 500px;
    background-color: #CBD5E1;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFF;
    font-size: 24px;
    font-weight: 600;
    margin-top: 40px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .project-meta-grid {
        grid-template-columns: 1fr 1fr;
        /* 2열로 변경 */
        gap: 24px;
    }

    .result-grid {
        grid-template-columns: 1fr;
    }

    .detail-main-image {
        height: 300px;
    }
}

/* =========================================
   14. Page: Service
   ========================================= */

.pt-160 {
    padding-top: 160px;
}

.pb-80 {
    padding-bottom: 80px;
}

/* Package List Grid */
.package-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

/* Package Card */
.package-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s;
}

.package-card:hover {
    border-color: var(--color-secondary);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
    transform: translateY(-4px);
}

/* Featured Card (Best) */
.package-card.featured {
    border: 2px solid var(--color-primary);
    background-color: #FAFCFF;
    /* 아주 연한 블루 틴트 */
    position: relative;
}

.pkg-header {
    margin-bottom: 32px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 24px;
}

.pkg-badge {
    display: inline-block;
    background-color: var(--color-bg-light);
    color: var(--color-text-sub);
    font-size: 14px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.pkg-badge.highlight {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.pkg-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.pkg-desc {
    font-size: 16px;
    color: var(--color-text-sub);
    line-height: 1.5;
}

.pkg-body {
    flex: 1;
    /* 높이 채우기 */
}

.pkg-info {
    margin-bottom: 24px;
}

.pkg-info strong {
    display: block;
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 8px;
}

.pkg-info p {
    font-size: 15px;
    color: var(--color-text-main);
    line-height: 1.6;
}

.pkg-items {
    list-style: disc;
    padding-left: 20px;
    font-size: 15px;
    color: var(--color-text-main);
    line-height: 1.6;
}

.pkg-meta {
    background-color: var(--color-bg-light);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-size: 14px;
    color: var(--color-text-sub);
    font-weight: 500;
    margin-top: 24px;
}

.pkg-meta .divider {
    margin: 0 8px;
    color: #CBD5E1;
}

.pkg-action {
    margin-top: 32px;
}

.btn-full {
    width: 100%;
}

/* Timeline Process */
.process-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    /* Circle center */
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
    z-index: 0;
}

.timeline-item {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    position: relative;
    z-index: 1;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.time-num {
    width: 50px;
    height: 50px;
    background-color: var(--color-white);
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: var(--color-secondary);
    flex-shrink: 0;
    /* 크기 고정 */
}

.time-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
    margin-top: 10px;
    /* 정렬 보정 */
}

.time-content p {
    font-size: 16px;
    color: var(--color-text-sub);
    line-height: 1.6;
}

/* FAQ List */
.faq-list {
    border-top: 1px solid var(--color-border);
}

.faq-item {
    padding: 32px 0;
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
    cursor: pointer;
}

.faq-question::before {
    content: "Q.";
    color: var(--color-secondary);
    margin-right: 8px;
}

.faq-answer {
    font-size: 16px;
    color: var(--color-text-main);
    line-height: 1.7;
    padding-left: 28px;
    /* Q 위치와 정렬 */
}

/* Mobile Responsive Service */
@media (max-width: 768px) {
    .package-list {
        grid-template-columns: 1fr;
    }

    .process-timeline::before {
        left: 20px;
    }

    .time-num {
        width: 42px;
        height: 42px;
        font-size: 16px;
    }
}

/* =========================================
   15. Page: Contact Form
   ========================================= */

.contact-section {
    padding-top: 140px;
    padding-bottom: 100px;
    background-color: var(--color-bg-light);
    min-height: 100vh;
}

.contact-container {
    display: grid;
    grid-template-columns: 4fr 6fr;
    /* 4:6 비율 */
    gap: 80px;
}

/* Left Info */
.contact-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 24px;
    line-height: 1.3;
}

.contact-desc {
    font-size: 18px;
    color: var(--color-text-sub);
    line-height: 1.6;
    margin-bottom: 60px;
}

.info-item {
    margin-bottom: 24px;
}

.info-label {
    display: block;
    font-size: 14px;
    color: var(--color-text-sub);
    margin-bottom: 4px;
    font-weight: 600;
}

.info-link {
    font-size: 20px;
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: underline;
}

/* Right Form Wrapper */
.contact-form-wrapper {
    background-color: var(--color-white);
    padding: 48px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 16px;
    background-color: #F8FAFC;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    background-color: #FFF;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Radio Box Style */
.radio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.radio-box {
    position: relative;
}

.radio-box input {
    position: absolute;
    opacity: 0;
    /* Hide default radio */
}

.radio-box span {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background-color: #F8FAFC;
    color: var(--color-text-sub);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.radio-box input:checked+span {
    background-color: #EFF6FF;
    /* Light Blue */
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    font-weight: 700;
}

.form-note {
    margin-top: 16px;
    font-size: 13px;
    color: var(--color-text-sub);
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 900px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .radio-grid {
        grid-template-columns: 1fr;
        /* 모바일에서 세로 정렬 */
    }

    /* Mobile Menu Active State */
    .nav.active {
        display: block;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: white;
        padding: 20px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    }

    .nav.active .nav-list {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

/* =========================================
   16. Page: Insights
   ========================================= */

/* Automation Badge */
.auto-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #ECFDF5;
    /* Light Green */
    color: #059669;
    /* Dark Green */
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 24px;
}

.dot {
    width: 8px;
    height: 8px;
    background-color: #10B981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

/* Tech Icons Area */
.tech-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 32px;
    font-size: 14px;
    color: var(--color-text-sub);
}

.tech-tag {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 13px;
}

/* Article Card Design */
.article-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.article-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
    height: 100%;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.05);
    border-color: var(--color-secondary);
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-size: 13px;
}

.source-tag {
    background-color: #F1F5F9;
    color: var(--color-text-sub);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.date {
    color: #94A3B8;
}

.article-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 16px;
    min-height: 50px;
    /* 제목 줄맞춤용 */
}

.article-title a {
    color: var(--color-text-main);
}

.article-title a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* AI Summary Box */
.ai-summary {
    background-color: #FAFAFA;
    /* 아주 연한 회색 */
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    flex: 1;
    /* 높이 채우기 */
}

.ai-label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 8px;
}

.ai-summary p {
    font-size: 14px;
    color: var(--color-text-sub);
    line-height: 1.6;
}

.read-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-main);
    transition: color 0.2s;
}

.read-more:hover {
    color: var(--color-secondary);
}

/* Automation Banner */
.automation-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1E293B 100%);
    border-radius: 16px;
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--color-white);
}

.ab-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.ab-text p {
    font-size: 18px;
    opacity: 0.8;
}

.btn-white {
    background-color: var(--color-white);
    color: var(--color-primary);
    padding: 14px 32px;
    border-radius: 6px;
    font-weight: 700;
    display: inline-block;
}

.btn-white:hover {
    background-color: #F1F5F9;
}

/* Mobile Responsive */
@media (max-width: 900px) {
    .article-grid {
        grid-template-columns: 1fr;
    }

    .automation-banner {
        flex-direction: column;
        text-align: center;
        gap: 32px;
        padding: 40px 24px;
    }
}