/* Reset and Base Styles - KT Design System Style */
:root {
    --kt-red: #ea002c;
    --kt-black: #000000;
    --text-dark: #111111;
    --text-gray: #666666;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa; /* Very light gray */
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
    word-break: keep-all;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center { text-align: center; }
.text-red { color: var(--kt-red) !important; }
.bg-light { background-color: var(--bg-light); }

/* Typography */
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--text-dark);
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.section {
    padding: 5rem 0;
}

/* Global Header */
.global-header {
    background-color: var(--bg-white);
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.kt-logo-img { height: 28px; width: auto; }
.logo-text { font-size: 1.1rem; font-weight: 700; color: #333; }

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    margin-left: 2rem;
    font-size: 1rem;
    transition: color 0.2s;
}

.nav-menu a:hover { color: var(--kt-red); }

.nav-apply-btn {
    background-color: var(--kt-red);
    color: #fff !important;
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 0.95rem !important;
}

/* Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 1.15rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-red {
    background-color: var(--kt-red);
    color: var(--bg-white);
}

.btn-red:hover {
    background-color: #cc0026;
}

/* 1. Hero Section */
.hero {
    padding: 5rem 0 3rem;
    background: linear-gradient(180deg, #fdfdfd 0%, #f4f6f8 100%);
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.hero-content {
    flex: 1;
    max-width: 550px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    background: var(--bg-white);
    color: var(--text-dark);
    padding: 0.4rem 1rem;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border: 1px solid #eaeaea;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.hero-tag .icon {
    margin-right: 6px;
}

.hero .headline {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.25;
    letter-spacing: -0.03em;
}

.hero .sub-copy {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    color: var(--text-gray);
}

.hero-badges {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.badge {
    display: flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    color: #444;
}

.badge-icon {
    color: var(--kt-red);
    margin-right: 5px;
}

.cta-btn {
    border-radius: 40px;
    padding: 1.2rem 2.5rem;
    box-shadow: 0 10px 20px rgba(234, 0, 44, 0.2);
    margin-bottom: 1rem;
}

.hero-disclaimer {
    font-size: 0.85rem;
    color: #888;
    margin-left: 1rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    max-width: 500px;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 60px rgba(0,0,0,0.08);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}


/* 2. Problem Section */
.problem {
    background-color: #fafbfc;
}

.problem-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.card {
    background: var(--bg-white);
    padding: 2.5rem 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid #f0f0f0;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
}

.card:hover { 
    transform: translateY(-5px); 
    box-shadow: 0 15px 40px rgba(0,0,0,0.06);
}

.card-number {
    color: var(--kt-red);
    font-weight: 900;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.card-icon {
    width: 80px;
    height: 80px;
    background-color: #fce8eb;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon img {
    width: 36px;
    height: 36px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.card-desc {
    font-size: 1rem;
    color: var(--text-gray);
    line-height: 1.5;
}

.problem-conclusion {
    font-size: 1.2rem;
    margin-top: 3rem;
    color: #444;
}

/* 3. Report Contents Section */
.contents-box {
    background-color: #f4f5f6;
    border-radius: var(--radius-lg);
    padding: 3rem;
}

.contents-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 2.5rem;
}

.contents-grid {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.content-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.content-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -0.5rem;
    top: 20%;
    height: 60%;
    width: 1px;
    background-color: #ddd;
}

.content-icon {
    margin-bottom: 1rem;
}

.content-icon img {
    width: 40px;
    height: 40px;
    opacity: 0.8;
}

.content-item h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.content-item p {
    font-size: 0.9rem;
    color: var(--text-gray);
}


/* 4. Process Section */
.process-wrapper {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 3rem;
}

.steps-container {
    flex: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.step {
    text-align: center;
    flex: 1;
}

.step-icon-circle {
    width: 80px;
    height: 80px;
    background: #f8f9fa;
    border: 2px solid #eaeaea;
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.step-icon-circle img {
    width: 32px;
    height: 32px;
}

.step-num {
    position: absolute;
    top: -5px;
    left: -5px;
    background: var(--kt-red);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 800;
}

.step h4 {
    font-size: 1.15rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.step p {
    font-size: 0.95rem;
    color: var(--text-gray);
}

.step-arrow {
    color: #ccc;
    font-size: 2rem;
}

.cta-box {
    flex: 1;
    background: #fcfcfc;
    border: 1px solid #eaeaea;
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.gift-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-box p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.cta-btn-full {
    width: 100%;
    border-radius: 40px;
}

.privacy-disclaimer {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: #888;
}

.shield-icon {
    font-size: 1rem;
    vertical-align: middle;
}

/* Modal Form Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 25px 50px rgba(0,0,0,0.2);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: 300;
    color: #aaa;
    cursor: pointer;
    line-height: 1;
}

.close-modal:hover { color: #333; }

.modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--kt-red);
    margin-bottom: 0.5rem;
}

.modal-header p {
    font-size: 0.95rem;
    color: var(--text-gray);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
}

.form-group input[type="text"] {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-light);
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    background-color: var(--bg-white);
    border-color: var(--kt-red);
    box-shadow: 0 0 0 2px rgba(234, 0, 44, 0.1);
}

.privacy-wrap {
    display: flex;
    align-items: center;
    margin: 1.5rem 0 2rem;
    font-size: 0.9rem;
    color: #666;
}

.privacy-wrap input { margin-right: 8px; width: 16px; height: 16px; accent-color: var(--kt-red); }

.btn-submit {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.1rem;
    border-radius: 40px;
}

/* Footer */
.footer {
    background: #fdfdfd;
    border-top: 1px solid #eee;
    padding: 3rem 0;
    color: #777;
}

.flex-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-logo-img { height: 28px; filter: grayscale(100%) opacity(0.5); }
.footer-logo-text { font-size: 1.1rem; font-weight: 800; color: #999; }

.footer-info {
    text-align: right;
    font-size: 0.9rem;
}

.footer-info p { margin-bottom: 5px; }
.copyright { margin-top: 10px; font-size: 0.8rem; color: #aaa; }


/* Responsive */
@media (max-width: 992px) {
    .hero-inner { flex-direction: column; text-align: center; }
    .hero-content { max-width: 100%; }
    .hero-badges { justify-content: center; }
    .hero-disclaimer { margin-left: 0; display: block; margin-top: 10px; }
    .problem-cards { grid-template-columns: repeat(2, 1fr); }
    .contents-grid { flex-wrap: wrap; }
    .content-item { flex: 0 0 45%; margin-bottom: 2rem; }
    .content-item::after { display: none; }
    .process-wrapper { flex-direction: column; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .hero .headline { font-size: 2.5rem; }
    .problem-cards { grid-template-columns: 1fr; }
    .content-item { flex: 0 0 100%; }
    .steps-container { flex-direction: column; gap: 1.5rem; }
    .step-arrow { transform: rotate(90deg); margin: 10px 0; }
    .flex-footer { flex-direction: column; gap: 20px; text-align: center; }
    .footer-info { text-align: center; }
}