/* === WE:AI Community Refined Playful Theme === */
:root {
    /* 1. Color Palette: Warm & Sophisticated */
    --bg-cream: #EBE9DE;
    --bg-white: #FFFFFF;

    --color-primary: #2D3436;
    --color-secondary: #636E72;
    --color-accent: #FF914D;
    /* Orange Accent for CTA */

    --color-gray-100: #F1F3F5;
    --color-gray-200: #E9ECEF;
    --color-gray-300: #DEE2E6;

    /* Pastel Accents (Bento Box Backgrounds - Refined) */
    --bg-mint: #E0F2F1;
    --bg-coral: #FBE9E7;
    --bg-lemon: #FFFDE7;
    --bg-sky: #E3F2FD;
    --bg-orange: #FFF3E0;

    /* 2. Typography */
    --font-heading: 'Domine', 'Pretendard', serif;
    --font-body: 'Pretendard', 'Inter', -apple-system, sans-serif;

    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2.25rem;
    /* Increased for better hierarchy */

    /* 3. Spacing & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    /* Slightly sharper than 16px for buttons */
    --radius-lg: 20px;
    /* Refined Bento Card Radius */
    --radius-xl: 32px;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 80px;
    /* More breathing room */

    /* 4. Shadows (Soft & Deep) */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
    --shadow-bento: 0 1px 3px rgba(0, 0, 0, 0.02), 0 8px 24px rgba(0, 0, 0, 0.02);
    /* Soft floating effect */
}

/* Base Reset */
body {
    background-color: var(--bg-cream);
    color: var(--color-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Main Content - 상단 간격 제거 */
.main-content {
    margin: 0;
    padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    padding-bottom: 120px;
    /* Prevent footer overlap */
}

/* Header */
.header {
    background-color: rgba(249, 249, 245, 0.95);
    padding: var(--spacing-md) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    border-bottom: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
    /* Fixed height for consistency */
    margin-bottom: 0;
}

.header__logo {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--color-primary);
    display: flex;
    align-items: center;
}

.header__logo span {
    color: var(--color-accent);
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

@media (min-width: 769px) {
    .header__nav {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
}

.header__nav-link {
    font-weight: 600;
    color: var(--color-secondary);
    font-size: 1.1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.header__nav-link:hover,
.header__nav-link.active {
    color: var(--color-primary);
    background-color: rgba(0, 0, 0, 0.05);
    /* Subtle hover background */
}

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Mobile Menu Toggle - Hidden by default on Desktop */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-primary);
}

/* Mobile Responsiveness for Header */
@media (max-width: 768px) {
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .mobile-menu-toggle {
        display: block;
        /* Show on mobile */
    }

    /* Hide desktop nav */
    .header__nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        transform: none;
        /* Reset desktop centering */
        background-color: var(--bg-cream);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .header__nav.active {
        display: flex;
    }

    .hide-mobile {
        display: none !important;
    }
}

/* Hero Section with Noise Texture */
.hero-wrapper {
    width: 100%;
    background-color: var(--bg-cream);
    overflow: hidden;
    position: relative;
    margin: 0;
    margin-bottom: var(--spacing-lg);
    min-height: 450px;
}

/* Texture Overlay */
.hero-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    z-index: 2;
    min-height: 450px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.hero__content {
    flex: 0 0 50%;
    max-width: 50%;
    z-index: 3;
    position: relative;
    padding: 40px 0;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right center;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 1;
    pointer-events: none;
}

.hero__image:hover {
    transform: none;
}

/* --- Bento Grid System (Clean Reset) --- */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

/* Default Mobile: 1 Column */
.grid--bento {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    /* 24px default gap */
    width: 100%;
}

/* Tablet: 2 Columns */
@media (min-width: 768px) {
    .grid--bento {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop: 3 Columns (Uniform) */
@media (min-width: 1024px) {
    .grid--bento {
        grid-template-columns: repeat(3, 1fr);
        column-gap: 24px;
        row-gap: 24px;
    }
}

@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        padding: var(--spacing-lg) var(--spacing-md);
        text-align: center;
    }

    .hero__content {
        max-width: 100%;
        margin-bottom: var(--spacing-lg);
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__image {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-top: var(--spacing-lg);
        max-width: 100%;
    }

    .hero-wrapper {
        padding: var(--spacing-xl) 0;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    letter-spacing: -0.01em;
    box-sizing: border-box;
    text-decoration: none;
    height: 42px;
}

.btn--primary {
    background-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(45, 52, 54, 0.15);
}

.btn--primary:hover {
    background-color: #000;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(45, 52, 54, 0.2);
}

.btn--secondary {
    background-color: var(--color-accent);
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 145, 77, 0.25);
}

.btn--secondary:hover {
    background-color: #FF8030;
    transform: translateY(-2px);
}

.btn--outline {
    background-color: #fff;
    border: 1px solid var(--color-gray-300);
    color: var(--color-secondary);
    box-shadow: var(--shadow-sm);
}

.btn--outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background-color: #fff;
}

.header__actions .btn {
    width: 110px;
    padding: 10px 0;
}

/* Avatar */
.avatar {
    width: 40px;
    height: 40px;
    background-color: var(--color-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    border: 2px solid white;
}

/* Cards (Clean & Spacious) */
.card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    /* Consistent generous padding */
    box-shadow: var(--shadow-bento);
    border: none;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: visible;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

/* Micro-interactions */
.btn:active {
    transform: scale(0.96);
}

/* Typography */
h1,
h2,
h3 {
    letter-spacing: -0.02em;
}

.hero__title {
    line-height: 1.2;
}

.card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    font-weight: 700;
}

.card__subtitle {
    font-size: 0.95rem;
    color: var(--color-secondary);
    font-family: var(--font-body);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.card__content {
    font-size: 1.05rem;
    color: var(--color-primary);
    margin-bottom: auto;
    /* Push footer content down */
    font-weight: 400;
    line-height: 1.6;
}

/* Card Colors */
.card--yellow {
    background-color: var(--bg-lemon);
}

.card--green {
    background-color: var(--bg-mint);
}

.card--sky {
    background-color: var(--bg-sky);
}

.card--pink {
    background-color: var(--bg-coral);
}

.card--orange {
    background-color: var(--bg-orange);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.badge--solved {
    background-color: rgba(255, 215, 0, 0.2);
    color: #B7950B;
}

.badge--answered {
    background-color: rgba(0, 230, 118, 0.15);
    color: #00Bfa5;
}

.card__badge {
    margin-top: var(--spacing-lg);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.7);
    padding: 8px 16px;
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    backdrop-filter: blur(4px);
    width: fit-content;
}

/* Ranking List */
.ranking-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.ranking-item {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: background 0.2s;
}

.ranking-item:hover {
    background: rgba(255, 255, 255, 0.9);
}

.ranking-item__rank {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    margin-right: var(--spacing-md);
    border-radius: 8px;
    font-size: 0.9rem;
}

.ranking-item__rank--gold {
    background-color: #FFD700;
    color: white;
}

.ranking-item__rank--silver {
    background-color: #C0C0C0;
    color: white;
}

.ranking-item__rank--bronze {
    background-color: #CD7F32;
    color: white;
}

.ranking-item__avatar img,
.ranking-item__avatar .avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    margin-right: var(--spacing-md);
    object-fit: cover;
    background-color: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ranking-item__user p {
    margin: 0;
    font-weight: 700;
    font-size: 1rem;
}

.ranking-item__dept {
    font-size: 0.85rem;
    color: var(--color-secondary);
}

.ranking-item__score {
    font-weight: 800;
    color: var(--color-accent);
    font-size: 1.1rem;
}

/* Footer Fix */
footer {
    padding-top: 60px;
    /* Internal spacing for footer */
    margin-top: 60px;
    /* External spacing from main content */
}

/* Font Import */
@import url('https://fonts.googleapis.com/css2?family=Domine:wght@400;600;700&family=Inter:wght@400;500;600&display=swap');