@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;700;800&family=Noto+Sans+KR:wght@400;500;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

:root {
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-soft: #f1f5f9;
    --line: #dde3ea;
    --line-strong: #cfd7e3;
    --text: #0f172a;
    --text-muted: #4b5563;
    --brand: #1d4ed8;
    --brand-soft: #dbeafe;
    --radius-lg: 16px;
    --radius-md: 12px;
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 14px 28px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 8% -6%, #e8f0ff 0%, transparent 32%),
        radial-gradient(circle at 92% 0%, #eef4ff 0%, transparent 26%),
        var(--bg);
}

h1,
h2,
h3,
header a.text-3xl {
    font-family: 'Montserrat', 'Noto Sans KR', sans-serif;
    letter-spacing: -0.02em;
}

header {
    background: rgba(255, 255, 255, 0.88) !important;
    border-color: var(--line) !important;
    box-shadow: var(--shadow-sm);
}

section {
    position: relative;
}

#product,
#details {
    background: var(--surface-soft) !important;
}

footer {
    background: var(--surface) !important;
}

#guide .p-8,
#product .rounded-2xl,
[data-tab-content],
#conditions .bg-white.rounded-xl {
    background: var(--surface) !important;
    border: 1px solid var(--line) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm);
}

#guide .group:hover,
#product .rounded-2xl:hover,
[data-tab-content]:hover {
    transform: translateY(-3px);
    border-color: var(--line-strong) !important;
    box-shadow: var(--shadow-md);
}

#guide .group,
#product .rounded-2xl,
[data-tab-content] {
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

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

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

.border-accent-blue {
    border-color: var(--brand) !important;
}

.bg-blue-50,
.bg-blue-50\/30 {
    background-color: #eff6ff !important;
}

.border-blue-100 {
    border-color: #dbeafe !important;
}

a.px-8.py-4.rounded-xl.bg-gray-900 {
    background: var(--text) !important;
    border-radius: 9999px !important;
    box-shadow: none !important;
}

a.px-8.py-4.rounded-xl.bg-white {
    border-radius: 9999px !important;
    border-color: var(--line) !important;
}

#conditions table {
    border-collapse: separate;
    border-spacing: 0;
}

#conditions thead tr {
    background: #f8fafc !important;
}

#conditions tbody tr:hover {
    background: #fbfdff !important;
}

#conditions th,
#conditions td {
    border-color: #edf1f5 !important;
}

footer {
    border-top-color: var(--line) !important;
}

footer .rounded-full {
    border-color: var(--line) !important;
}

footer .rounded-full:hover {
    background: var(--brand) !important;
    border-color: var(--brand) !important;
}

@media (max-width: 768px) {
    body {
        background: var(--bg);
    }

    #guide .p-8,
    #product .rounded-2xl,
    [data-tab-content] {
        border-radius: var(--radius-md) !important;
    }
}

/* ── 스크롤 페이드인 ── */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── 탭 콘텐츠 페이드 ── */
[data-tab-content] {
    animation: none;
}

[data-tab-content].tab-enter {
    animation: tabFadeIn 0.3s ease forwards;
}

@keyframes tabFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── 히어로 순차 페이드인 ── */
@keyframes heroFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-anim {
    opacity: 0;
    animation: heroFadeUp 0.65s ease forwards;
}

.hero-anim:nth-child(1) { animation-delay: 0.05s; }
.hero-anim:nth-child(2) { animation-delay: 0.20s; }
.hero-anim:nth-child(3) { animation-delay: 0.35s; }
.hero-anim:nth-child(4) { animation-delay: 0.50s; }

/* ── 배지 pulse ── */
.hero-badge-dot {
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(1.4); }
}

/* ── h1 shimmer ── */
@keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position:  200% center; }
}

.hero-shimmer {
    background: linear-gradient(
        90deg,
        #111827 0%,
        #374151 40%,
        #1d4ed8 50%,
        #374151 60%,
        #111827 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
}