/* TaxBaik — Navy Blue 디자인 시스템 */

:root {
    /* Navy Blue 팔레트 */
    --color-primary: #1B4F8A;        /* 네이비 */
    --color-primary-dark: #133970;   /* 진한 네이비 */
    --color-primary-light: #2E5FA3;  /* 밝은 네이비 */
    --color-secondary: #2E5FA3;      /* 보조 (밝은 네이비) */
    --color-secondary-dark: #1B4F8A; /* 보조 진한 */
    --color-accent: #E8F1F8;         /* 연한 블루 배경 */
    --color-accent-dark: #D8E2EE;    /* 더 진한 연블루 */
    --color-bg: #F7F9FC;             /* 차가운 화이트 */
    --color-bg-alt: #EAF1F8;         /* 대체 배경 */
    --color-text: #1A1A2E;           /* 본문 텍스트 */
    --color-text-light: #5A6A7A;     /* 보조 텍스트 */
    --color-border: #D8E2EE;         /* 경계선 */
    --color-cta: #E05A2B;            /* 오렌지 CTA */
    --color-cta-dark: #D45A1F;       /* 진한 오렌지 */
    --color-gold: #C9A227;           /* 골드 액센트 */
    --color-success: #2E7D32;
    --color-warning: #F57C00;
    --color-danger: #C62828;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.15);

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    font-family: 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

body {
    color: var(--color-text);
    background-color: #fff;
    line-height: 1.75;
    font-size: clamp(0.875rem, 2.5vw, 1rem);
}

/* ===== 타이포그래피 ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

h1 { font-size: clamp(1.75rem, 5vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3.5vw, 2rem); }
h4 { font-size: 1.35rem; }
h5 { font-size: 1.15rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
    line-height: 1.8;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: none;
}

/* ===== 버튼 ===== */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    display: inline-block;
    text-align: center;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: white;
    box-shadow: 0 4px 12px rgba(27, 79, 138, 0.25);
}

.btn-warning {
    background-color: var(--color-cta);
    border-color: var(--color-cta);
    color: white;
}

.btn-warning:hover {
    background-color: var(--color-cta-dark);
    border-color: var(--color-cta-dark);
    color: white;
    box-shadow: 0 4px 12px rgba(224, 90, 43, 0.25);
}

.btn-outline-primary {
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    background: transparent;
}

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.95rem;
}

/* ===== 카드 ===== */
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    background: white;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.card-body {
    padding: var(--spacing-xl);
}

.card-title {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.card-text {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===== 히어로 섹션 ===== */
.hero-section {
    padding: clamp(2rem, 15vh, 5rem) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.hero-section h1 {
    font-size: clamp(1.75rem, 6vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
    color: white;
}

.hero-section p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
}

/* ===== 섹션 ===== */
.bg-light {
    background-color: var(--color-accent) !important;
}

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

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-primary);
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

/* ===== 신뢰도 스트립 ===== */
.trust-strip {
    background-color: var(--color-accent);
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

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

.trust-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.trust-item h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-size: 1.35rem;
}

.trust-item p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ===== 배지 ===== */
.badge {
    border-radius: var(--radius-md);
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
}

.bg-primary-badge {
    background-color: rgba(27, 79, 138, 0.1);
    color: var(--color-primary);
}

/* ===== 폼 ===== */
.form-control, .form-select {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background-color: white;
    color: var(--color-text);
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(27, 79, 138, 0.1);
    outline: none;
}

/* ===== 모바일 CTA 바 ===== */
.mobile-cta-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 2px solid var(--color-primary);
    padding: var(--spacing-md);
    z-index: 1000;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
}

.btn-kakao-mobile {
    display: block;
    width: 100%;
    padding: 0.85rem;
    background: #FFE812;
    color: #000;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    transition: background var(--transition-fast);
}

.btn-kakao-mobile:hover {
    background: #FDD835;
    text-decoration: none;
}

body.with-mobile-cta {
    padding-bottom: 70px;
}

/* ===== 네비게이션 ===== */
.navbar {
    background-color: white;
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    color: var(--color-primary) !important;
    font-size: 1.25rem;
}

.nav-link {
    color: var(--color-text) !important;
    font-weight: 500;
    transition: color var(--transition-fast);
    margin: 0 var(--spacing-sm);
}

.nav-link:hover {
    color: var(--color-primary) !important;
}

.nav-link.active {
    color: var(--color-cta) !important;
}

/* ===== 반응형 ===== */
@media (max-width: 767.98px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.35rem; }

    .hero-section {
        padding: 2rem 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .card {
        margin-bottom: 1rem;
    }

    .btn {
        padding: 0.65rem 1.5rem;
        font-size: 0.95rem;
    }

    .trust-icon {
        font-size: 2.5rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .site-header .navbar-brand {
        font-size: 1.1rem;
    }

    .site-header .navbar-nav {
        padding: 0.5rem 0 0;
    }

    .site-header .nav-link,
    .site-header .btn {
        width: 100%;
    }

    .site-header .navbar-toggler {
        border: 1px solid var(--color-border);
        box-shadow: none;
    }

    .site-header .navbar-collapse {
        padding-bottom: 0.5rem;
    }

    .pagination {
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .pagination .page-link {
        min-width: 2.75rem;
        text-align: center;
    }
}

@media (max-width: 375px) {
    html { font-size: 15px; }

    h1 { font-size: 1.5rem; }

    .hero-section h1 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }

    .hero-section p {
        font-size: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .hero-section .d-flex {
        gap: 0.75rem !important;
    }
}

/* ===== 일반 유틸리티 ===== */
.text-primary {
    color: var(--color-primary) !important;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
}

.container {
    max-width: 1200px;
}

/* ===== 서비스 카드 ===== */
.service-card {
    text-align: center;
    position: relative;
    border: none !important;
    background: white;
    padding-top: 0;
}

.service-icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: 0.5rem;
    margin-top: -1.5rem;
}

.service-card .card-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.service-card ul li {
    color: var(--color-text-light);
}

/* ===== 블로그 카드 ===== */
.blog-card {
    border: none !important;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.blog-placeholder {
    height: 180px;
    background: rgba(27, 79, 138, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(27, 79, 138, 0.3);
}

.blog-card:hover .blog-placeholder {
    background: rgba(27, 79, 138, 0.14);
}

.bg-primary-badge {
    background-color: rgba(27, 79, 138, 0.1) !important;
    color: var(--color-primary) !important;
}

/* ===== 공지사항 배너 ===== */
.announcement-bar {
    border-bottom: 1px solid rgba(0,0,0,0.08);
    font-size: 0.9rem;
}
.announcement-bar--info {
    background: #E8F4FD;
    color: #1565C0;
}
.announcement-bar--banner {
    background: #FFF8E1;
    color: #E65100;
}
.announcement-bar--urgent {
    background: #FFEBEE;
    color: #C62828;
}
.announcement-icon {
    flex-shrink: 0;
}
.announcement-text {
    flex: 1;
}

/* ===== 시즌 Hero ===== */
.hero-section--seasonal {
    background: linear-gradient(135deg, #133970 0%, #1B4F8A 60%, #2E5FA3 100%);
}
.bg-danger-badge {
    background-color: rgba(198, 40, 40, 0.85) !important;
    color: #fff !important;
    letter-spacing: 0.5px;
}

/* D-Day 카운트다운 위젯 */
.seasonal-deadline-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 4px solid rgba(255,255,255,0.25);
    background: rgba(255,255,255,0.1);
    color: white;
}
.deadline-label {
    font-size: 0.85rem;
    opacity: 0.75;
    letter-spacing: 2px;
    text-transform: uppercase;
}
.deadline-date {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.2;
    margin: 0.25rem 0;
}
.deadline-days {
    font-size: 2.8rem;
    font-weight: 900;
    color: #FFD54F;
    line-height: 1;
}

/* ===== 서비스 카드 시즌 강조 ===== */
.service-card--featured {
    border: 2px solid var(--color-primary) !important;
    position: relative;
}
.service-card-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 14px;
    border-radius: 20px;
    white-space: nowrap;
    letter-spacing: 0.5px;
}

/* ===== 블로그 시즌 연동 ===== */
.seasonal-blog-header {
    display: flex;
    justify-content: center;
}
.seasonal-blog-tag {
    display: inline-block;
    background: var(--color-cta);
    color: white;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.blog-card--seasonal {
    border: 2px solid var(--color-primary) !important;
    position: relative;
    overflow: visible;
}
.blog-seasonal-ribbon {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 14px;
    border-radius: 20px;
    white-space: nowrap;
    letter-spacing: 0.5px;
    z-index: 1;
}

.bg-season-badge {
    background-color: var(--color-primary) !important;
    color: white !important;
}

.btn-seasonal {
    background-color: var(--color-primary);
    color: white;
    border: none;
}
.btn-seasonal:hover {
    background-color: var(--color-primary-dark);
    color: white;
}

.btn-outline-seasonal {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
}
.btn-outline-seasonal:hover {
    background-color: var(--color-primary);
    color: white;
}

/* ===== FAQ 아코디언 ===== */
.faq-accordion {
    max-width: 760px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md) !important;
    margin-bottom: 0.75rem;
    overflow: hidden;
}
.faq-question {
    font-weight: 700;
    color: var(--color-text);
    background: white;
    font-size: 1rem;
    padding: 1.1rem 1.5rem;
}
.faq-question:not(.collapsed) {
    color: var(--color-primary);
    background: white;
    box-shadow: none;
}
.faq-question::after {
    filter: none;
}
.faq-question:focus {
    box-shadow: 0 0 0 3px rgba(27, 79, 138, 0.2);
}
.faq-answer {
    background: #F7F9FC;
    color: var(--color-text-light);
    line-height: 1.85;
    padding: 1rem 1.5rem 1.25rem;
    border-top: 1px solid var(--color-border);
}
.faq-answer ul {
    padding-left: 1.25rem;
}
.faq-answer ul li {
    margin-bottom: 0.4rem;
}