/* flyway Global Design System */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700&display=swap');
@import url('https://spoqa.github.io/spoqa-han-sans/css/SpoqaHanSansNeo.css');

:root {
    --brand-blue: #2563eb;
    --brand-blue-hover: #1d4ed8;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    background: linear-gradient(to bottom, #dbeafe 0%, #eff6ff 50%, #ffffff 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
}

/* --- Glassmorphism Header --- */
.glass-header {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 1280px;
    z-index: 1000;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2.5rem;
    overflow: visible;
}

.glass-header-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(
            135deg,
            rgba(15, 23, 42, 0.4) 0%,
            rgba(30, 41, 59, 0.35) 50%,
            rgba(15, 23, 42, 0.4) 100%
    );
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 2.5rem;
    transition: all 0.5s ease;
    box-shadow:
            0 8px 32px rgba(0, 0, 0, 0.2),
            0 4px 16px rgba(0, 0, 0, 0.1),
            inset 0 1px 1px rgba(255, 255, 255, 0.1),
            inset 0 -1px 1px rgba(0, 0, 0, 0.1);
}

/* 상단 하이라이트 효과 */
.glass-header-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    right: 20px;
    height: 1px;
    background: linear-gradient(90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.2) 20%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0.2) 80%,
    transparent 100%
    );
    border-radius: 2.5rem;
}

/* 스크롤 시 적용될 스타일 */
body.scrolled .glass-header {
    top: 0.5rem;
}

body.scrolled .glass-header-bg {
    background: linear-gradient(
            135deg,
            rgba(15, 23, 42, 0.5) 0%,
            rgba(30, 41, 59, 0.45) 50%,
            rgba(15, 23, 42, 0.5) 100%
    );
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow:
            0 12px 40px rgba(31, 38, 135, 0.2),
            0 6px 20px rgba(0, 0, 0, 0.1),
            inset 0 2px 4px rgba(255, 255, 255, 0.7),
            inset 0 -1px 2px rgba(0, 0, 0, 0.05);
}

/* --- Glassmorphism Search Bar --- */
.glass-search-box {
    background: rgba(255, 255, 255, 0.1) !important;
    backdrop-filter: blur(60px) !important;
    -webkit-backdrop-filter: blur(60px) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: 2rem !important;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.15) !important;
    transition: all 0.7s ease;
    position: relative;
    overflow: visible !important;
}

.glass-search-box:hover {
    background: rgba(255, 255, 255, 0.15) !important;
}

.glass-search-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    pointer-events: none;
    border-radius: inherit;
    z-index: 0;
}

/* --- Animations --- */
@keyframes fadeInSlide {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-flyway {
    animation: fadeInSlide 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

/* --- Destination Cards --- */
.dest-card {
    border-radius: 2rem;
    overflow: hidden;
    position: relative;
    transition: all 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.dest-card:hover {
    transform: translateY(-1rem);
}

.dest-card img {
    transition: transform 4s ease;
}

.dest-card:hover img {
    transform: scale(1.1);
}

.dest-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
}

/* --- Glass Buttons --- */
.glass-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
}

/* No underline helper */
.no-underline {
    text-decoration: none !important;
}

.glass-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    pointer-events: none;
}

.glass-btn:active {
    transform: scale(0.95);
}

/* --- Logo 3D Text Style --- */
.logo-3d {
    position: relative;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-3d:hover {
    transform: scale(1.05);
}

.logo-text-3d {
    position: relative;
    /* 다중 drop-shadow로 3D 입체감 */
    filter:
        /* 메인 그림자 (깊이감) */
            drop-shadow(0 1px 0 rgba(255, 255, 255, 0.4))
            drop-shadow(0 2px 1px rgba(0, 0, 0, 0.2))
            drop-shadow(0 3px 2px rgba(0, 0, 0, 0.15))
            drop-shadow(0 4px 3px rgba(0, 0, 0, 0.1))
            drop-shadow(0 6px 5px rgba(0, 0, 0, 0.08))
                /* 부드러운 글로우 */
            drop-shadow(0 0 8px rgba(59, 130, 246, 0.3));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-3d:hover .logo-text-3d {
    filter:
        /* 호버 시 더 강한 입체감 */
            drop-shadow(0 1px 0 rgba(255, 255, 255, 0.5))
            drop-shadow(0 2px 1px rgba(0, 0, 0, 0.25))
            drop-shadow(0 4px 3px rgba(0, 0, 0, 0.2))
            drop-shadow(0 6px 5px rgba(0, 0, 0, 0.15))
            drop-shadow(0 8px 8px rgba(0, 0, 0, 0.1))
                /* 더 강한 글로우 */
            drop-shadow(0 0 15px rgba(59, 130, 246, 0.4));
    transform: translateY(-2px);
}

/* --- Header Tilt Glass Buttons (Vanilla Tilt + Tailwind) --- */
.tilt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 90px;
    height: 40px;
    transform-style: preserve-3d;
    transform: perspective(1000px);
}

/* Header auth buttons (login/signup) */
.auth-text-btn {
    min-width: auto;
    height: 40px;
    background: transparent !important;
    border: 1px solid transparent !important;
    box-shadow: none !important;
    color: #64748B !important;
    text-shadow: none !important;
}

.auth-text-btn::before,
.auth-text-btn::after {
    display: none !important;
}

.auth-text-btn:hover {
    opacity: 0.7;
}

/* 버튼 텍스트 스타일 (Toss, Kakao 스타일) */
.btn-text {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: -0.02em;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Vanilla Tilt glare 스타일 커스텀 */
.tilt-btn .js-tilt-glare {
    border-radius: inherit;
}

.tilt-btn .js-tilt-glare-inner {
    border-radius: inherit;
    background: linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.8) 0%,
            rgba(255, 255, 255, 0.4) 40%,
            transparent 60%
    ) !important;
}

/* 내부 하이라이트 효과 */
.tilt-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.9) 30%,
    rgba(255, 255, 255, 1) 50%,
    rgba(255, 255, 255, 0.9) 70%,
    transparent 100%
    );
    border-radius: 9999px;
    pointer-events: none;
}

/* 하단 미세 그림자 라인 */
.tilt-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg,
    transparent 0%,
    rgba(0, 0, 0, 0.1) 30%,
    rgba(0, 0, 0, 0.15) 50%,
    rgba(0, 0, 0, 0.1) 70%,
    transparent 100%
    );
    border-radius: 9999px;
    pointer-events: none;
}

/* 버튼 내부 입체감 (inset shadow via box-shadow) */
.tilt-btn {
    box-shadow:
            0 4px 15px rgba(0, 0, 0, 0.1),
            0 8px 30px rgba(0, 0, 0, 0.08),
            inset 0 1px 2px rgba(255, 255, 255, 0.9),
            inset 0 -1px 2px rgba(0, 0, 0, 0.05) !important;
}

.tilt-btn:hover {
    box-shadow:
            0 6px 20px rgba(0, 0, 0, 0.12),
            0 12px 40px rgba(0, 0, 0, 0.1),
            inset 0 1px 2px rgba(255, 255, 255, 1),
            inset 0 -1px 2px rgba(0, 0, 0, 0.05) !important;
}

/* Primary (Blue) 버튼 그림자 */
.tilt-btn.shadow-blue-500\/30 {
    box-shadow:
            0 4px 15px rgba(59, 130, 246, 0.3),
            0 8px 30px rgba(59, 130, 246, 0.2),
            inset 0 1px 2px rgba(255, 255, 255, 0.4),
            inset 0 -1px 2px rgba(30, 64, 175, 0.3) !important;
}

.tilt-btn.shadow-blue-500\/30:hover {
    box-shadow:
            0 6px 20px rgba(59, 130, 246, 0.4),
            0 12px 40px rgba(59, 130, 246, 0.3),
            inset 0 1px 2px rgba(255, 255, 255, 0.5),
            inset 0 -1px 2px rgba(30, 64, 175, 0.3) !important;
}

/* --- Footer --- */
.footer-bg-icon {
    position: absolute;
    bottom: -40px;
    right: -40px;
    opacity: 0.02;
    pointer-events: none;
    user-select: none;
    font-size: 400px;
    color: #111827;
}

/* 소셜 버튼 호버 효과 */
.social-btn {
    transition: all 0.3s ease;
}

.social-btn:hover {
    background: var(--brand-blue) !important;
    color: white !important;
    border-color: var(--brand-blue) !important;
}

button {
    font-family: inherit!important;
}

/* ========================================
   반응형 레이아웃 (Header & Buttons)
   ======================================== */

/* 태블릿 (1024px 이하) */
@media (max-width: 1024px) {
    .glass-header {
        width: 96%;
    }

    .glass-header .px-10 {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* 모바일 (768px 이하) */
@media (max-width: 768px) {
    .glass-header {
        width: 94%;
        top: 0.5rem;
        border-radius: 1.5rem;
    }

    .glass-header-bg {
        border-radius: 1.5rem;
    }

    .glass-header .px-10 {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* 헤더 버튼 영역 */
    .glass-header .flex.items-center.space-x-3 {
        gap: 0.25rem;
    }

    /* 헤더 버튼 크기 축소 */
    .tilt-btn.auth-text-btn {
        min-width: auto;
        height: 36px;
        padding: 0.4rem 0.6rem !important;
    }

    .tilt-btn.auth-text-btn .btn-text,
    .auth-text-btn {
        font-size: 12px;
    }

    /* 로고 크기 축소 */
    .logo-text-3d {
        height: 32px !important;
    }
}

/* 소형 모바일 (480px 이하) */
@media (max-width: 480px) {
    .glass-header {
        width: 92%;
        top: 0.4rem;
        border-radius: 1.25rem;
    }

    .glass-header-bg {
        border-radius: 1.25rem;
    }

    .glass-header .px-10 {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    /* 헤더 버튼 더 작게 */
    .tilt-btn.auth-text-btn {
        height: 32px;
        padding: 0.3rem 0.5rem !important;
    }

    .auth-text-btn {
        font-size: 11px !important;
    }

    /* 로고 더 작게 */
    .logo-text-3d {
        height: 28px !important;
    }
}

/* 극소형 모바일 (360px 이하) - 버튼 한 줄에 안 맞을 때 */
@media (max-width: 360px) {
    .glass-header {
        width: 94%;
    }

    .glass-header .px-10 {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    /* 버튼 텍스트 숨기고 아이콘만 표시하거나 더 작게 */
    .tilt-btn.auth-text-btn {
        padding: 0.25rem 0.4rem !important;
        font-size: 10px !important;
    }

    .logo-text-3d {
        height: 24px !important;
    }
}

/* overflow 방지 */
.glass-header .flex.items-center.space-x-3 {
    flex-wrap: nowrap;
    overflow: hidden;
}

/* 헤더 spacer 반응형 */
@media (max-width: 768px) {
    .header-spacer {
        height: 80px !important;
    }
}

@media (max-width: 480px) {
    .header-spacer {
        height: 72px !important;
    }
}