/* =====================================================
   CELAI Custom Styles
   ===================================================== */

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

/* Variables - FLITTO Brand Color Palette */
:root {
    /* Primary Colors */
    --color-primary-navy: #004B91;
    --color-vibrant-blue: #1C75BC;
    --color-point-red: #C50000;
    --color-gray-bg: #F1F2F2;
    --color-border: #D1D3D4;
    --color-text-main: #333333;
    --color-text-sub: #666666;

    /* Mapped Variables */
    --celai-bg: #F1F2F2;
    --celai-bg-soft: #ffffff;
    --celai-ink: #333333;
    --celai-muted: #666666;
    --celai-accent: #004B91;
    --celai-accent-deep: #1C75BC;
    --celai-accent-2: #C50000;
    --celai-line: #D1D3D4;
    --celai-shadow: 0 20px 60px rgba(0, 75, 145, 0.12);
}

/* Font */
body {
    font-family: "Roboto", "Apple SD Gothic Neo", sans-serif;
    background: var(--celai-bg);
    color: var(--celai-ink);
    line-height: 1.6;
}

h1,
h2,
h3,
h4 {
    font-family: "Libre Baskerville", serif;
}

/* =====================================================
   HEADER
   ===================================================== */
.celai-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--celai-line);
}

.celai-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: relative;
}

.celai-logo img {

    width: auto;
}

.celai-nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.celai-nav ul {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.celai-nav a {
    color: var(--celai-ink);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.celai-nav a:hover {
    color: var(--celai-accent);
}

/* =====================================================
   LOGIN AREA
   ===================================================== */
.celai-login-area {
    margin-left: 20px;
}

.celai-btn-google {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #ffffff;
    border: 1px solid #dadce0;
    color: #3c4043;
    padding: 8px 16px;
    border-radius: 999px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.celai-btn-google:hover {
    background: #f8f9fa;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
    transform: translateY(-1px);
}

.celai-btn-google:disabled {
    opacity: 0.7;
    cursor: default;
}

.celai-user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
}

.celai-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-navy), var(--color-vibrant-blue));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.celai-user-name {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--celai-ink);
}

.celai-btn-logout {
    background: transparent;
    border: 1px solid #e0e0e0;
    color: var(--celai-muted);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.celai-btn-logout:hover {
    background: #fff0f0;
    border-color: var(--color-point-red);
    color: var(--color-point-red);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.celai-hero {
    padding-top: 120px;
    padding-bottom: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.celai-hero-grid {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 30px;
    align-items: center;
}

.celai-hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    object-fit: cover;
}

.celai-hero-left img {
    aspect-ratio: 3/4;
}

.celai-hero-images-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.celai-hero-images-right .celai-hero-image img {
    aspect-ratio: 4/3;
}

.celai-hero-content {
    text-align: center;
    padding: 40px 20px;
}

.celai-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}

.celai-hero-ai {
    background: var(--color-primary-navy);
    color: white;
    padding: 6px 14px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
}

.celai-hero-badge span:last-child {
    color: var(--celai-muted);
    font-size: 0.95rem;
    letter-spacing: 1px;
}

.celai-hero h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--celai-ink);
}

.celai-hero-desc {
    font-size: 1.1rem;
    color: var(--celai-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

.celai-hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--color-primary-navy);
    color: white;
    padding: 14px 28px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.celai-hero-btn:hover {
    background: var(--color-vibrant-blue);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(28, 117, 188, 0.3);
}

/* =====================================================
   CONTAINER
   ===================================================== */
.celai-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =====================================================
   SECTIONS
   ===================================================== */
.celai-section {
    padding: 80px 0;
}

.celai-section-alt {
    background: var(--celai-bg-soft);
}

.celai-section-header {
    text-align: center;
    margin-bottom: 50px;
}

.celai-section-header h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    margin-bottom: 16px;
    color: var(--celai-ink);
}

.celai-section-header p {
    color: var(--celai-muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   GRID
   ===================================================== */
.celai-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

/* =====================================================
   CARD
   ===================================================== */
.celai-card {
    background: var(--celai-bg-soft);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--celai-line);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.celai-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.celai-badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(0, 75, 145, 0.1);
    color: var(--color-primary-navy);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.celai-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--celai-ink);
}

.celai-card p {
    color: var(--celai-muted);
    line-height: 1.7;
}

/* =====================================================
   TIMELINE
   ===================================================== */
.celai-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.celai-step {
    background: var(--celai-bg);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--celai-line);
    position: relative;
}

.celai-step-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-vibrant-blue);
    margin-bottom: 16px;
}

.celai-step h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--celai-ink);
}

.celai-step p {
    color: var(--celai-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* =====================================================
   ACCENT PANEL
   ===================================================== */
.celai-accent-panel {
    background: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-vibrant-blue) 100%);
    color: white;
    border-radius: 28px;
    padding: 50px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    align-items: center;
}

.celai-accent-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.celai-accent-panel>div p {
    opacity: 0.9;
    font-size: 1.05rem;
}

.celai-accent-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.celai-accent-panel li {
    padding: 10px 0;
    padding-left: 24px;
    position: relative;
    opacity: 0.95;
}

.celai-accent-panel li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: rgba(255, 255, 255, 0.8);
}

/* =====================================================
   PRICE GRID
   ===================================================== */
.celai-price-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.celai-price-card {
    background: var(--celai-bg);
    border-radius: 24px;
    padding: 36px;
    border: 1px solid var(--celai-line);
    text-align: center;
    transition: transform 0.3s ease;
}

.celai-price-card:hover {
    transform: translateY(-6px);
}

.celai-price-card.celai-highlight {
    border: 2px solid var(--color-primary-navy);
    box-shadow: 0 20px 50px rgba(0, 75, 145, 0.2);
    position: relative;
}

.celai-price-card.celai-highlight::before {
    content: "추천";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-point-red);
    color: white;
    padding: 4px 16px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.celai-price-card h4 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--celai-ink);
}

.celai-price {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--celai-ink);
    margin-bottom: 24px;
}

.celai-price small {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--celai-muted);
}

.celai-price-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.celai-price-card li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: var(--celai-muted);
    border-bottom: 1px solid var(--celai-line);
}

.celai-price-card li:last-child {
    border-bottom: none;
}

.celai-price-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-vibrant-blue);
    font-weight: 600;
}

/* =====================================================
   FAQ
   ===================================================== */
.celai-faq {
    max-width: 800px;
    margin: 0 auto;
}

.celai-faq-item {
    background: var(--celai-bg-soft);
    border-radius: 16px;
    padding: 24px 28px;
    margin-bottom: 16px;
    border: 1px solid var(--celai-line);
}

.celai-faq-item h4 {
    font-size: 1.05rem;
    color: var(--celai-ink);
    margin-bottom: 10px;
}

.celai-faq-item p {
    color: var(--celai-muted);
    line-height: 1.7;
}

/* =====================================================
   FOOTER
   ===================================================== */
.celai-footer {
    background: var(--celai-bg-soft);
    padding: 60px 0;
    border-top: 1px solid var(--celai-line);
}

.celai-footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.celai-footer-logo {
    width: 130px;
    height: auto;
    margin-bottom: 10px;
}

.celai-footer-inner strong {
    display: block;
    margin-bottom: 12px;
    color: var(--celai-ink);
}

.celai-footer-inner p {
    color: var(--celai-muted);
    font-size: 0.95rem;
    margin-bottom: 6px;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 992px) {
    .celai-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .celai-hero-left {
        display: none;
    }

    .celai-hero-images-right {
        flex-direction: row;
        justify-content: center;
    }

    .celai-hero-images-right .celai-hero-image {
        max-width: 200px;
    }

    .celai-hero-content {
        order: -1;
    }
}

@media (max-width: 768px) {
    .celai-header-inner {
        height: 60px;
    }

    .celai-nav {
        display: none;
    }


    .celai-login-area {
        margin-left: auto;
    }

    .celai-btn-google span {
        display: none;
    }

    .celai-btn-google {
        padding: 8px;
    }

    .celai-user-name {
        display: none;
    }

    .celai-hero {
        padding-top: 100px;
        padding-bottom: 60px;
        min-height: auto;
    }

    .celai-hero h1 {
        font-size: 1.8rem;
    }

    .celai-hero-desc {
        font-size: 1rem;
    }

    .celai-hero-images-right {
        display: none;
    }

    .celai-section {
        padding: 50px 0;
    }

    .celai-accent-panel {
        padding: 30px;
    }
}

@media (max-width: 480px) {

    .celai-card,
    .celai-step,
    .celai-price-card {
        padding: 24px;
    }

    .celai-hero-btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}