/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;500;700&family=Playfair+Display:ital,wght@0,600;1,600&display=swap');

:root {
    --bg-color: #0d1117;
    --second-bg-color: #161b22;
    --text-color: #e6edf3;
    --main-color: #58a6ff;
    --accent-color: #8b949e;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    scroll-behavior: smooth;
    font-family: 'Outfit', sans-serif;
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
}

body {
    background: var(--bg-color);
    color: var(--text-color);
    cursor: none;
    /* Custom cursor */
}

/* Custom Cursor */
.cursor-dot,
.cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 9999;
    pointer-events: none;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--main-color);
}

.cursor-outline {
    width: 40px;
    height: 40px;
    border: 2px solid var(--main-color);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 9%;
    background: rgba(13, 17, 23, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.logo {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 700;
    cursor: default;
    transition: 0.3s;
}

.logo .dot {
    color: var(--main-color);
}

.navbar a {
    font-size: 1.7rem;
    color: var(--text-color);
    margin-left: 4rem;
    font-weight: 500;
    transition: 0.3s;
    position: relative;
}

.navbar a:hover,
.navbar a.active {
    color: var(--main-color);
}

.navbar a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -6px;
    left: 0;
    background: var(--main-color);
    transition: 0.3s;
}

.navbar a:hover::after,
.navbar a.active::after {
    width: 100%;
}

#menu-icon {
    font-size: 3.6rem;
    color: var(--text-color);
    display: none;
    cursor: pointer;
}

/* Sections Global */
section {
    min-height: 100vh;
    padding: 10rem 9% 2rem;
}

span {
    color: var(--main-color);
}

.heading {
    text-align: center;
    font-size: 4.5rem;
    margin-bottom: 3rem;
}

/* Home Section */
.home {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
}

.home-content {
    max-width: 600px;
}

.home-welcome {
    font-size: 1.8rem;
    color: var(--accent-color);
    font-weight: 400;
    margin-bottom: 0.5rem;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
}

.home-content h1 {
    font-size: 6rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.home-content h1 .highlight-dot {
    color: var(--main-color);
}

.home-tagline {
    font-size: 2.8rem;
    font-weight: 500;
    color: var(--main-color);
    min-height: 4rem;
    margin-bottom: 2rem;
    font-family: 'Playfair Display', serif;
    font-style: italic;
}

.home-description {
    font-size: 1.7rem;
    color: var(--accent-color);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.home-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2.8rem;
    background: var(--main-color);
    border-radius: 4rem;
    box-shadow: 0 0 1rem var(--main-color);
    font-size: 1.6rem;
    color: var(--bg-color);
    letter-spacing: 0.1rem;
    font-weight: 600;
    transition: 0.5s ease;
}

.btn:hover {
    box-shadow: none;
    transform: scale(1.05);
    background: transparent;
    color: var(--main-color);
    border: 2px solid var(--main-color);
}

.btn-outline {
    background: transparent;
    color: var(--main-color);
    border: 2px solid var(--main-color);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--main-color);
    color: var(--bg-color);
    box-shadow: 0 0 1rem var(--main-color);
}


.home-img {
    margin-top: 2rem;
    /* Mobile fix adjustment */
}

.home-img .glowing-circle {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.home-img .glowing-circle::after {
    content: '';
    position: absolute;
    width: 330px;
    height: 330px;
    background: var(--bg-color);
    /* Cutout effect */
    border-radius: 50%;
}

.home-img .glowing-circle span {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(#0f766e, #22d3ee);
    /* 청록/에메랄드 톤으로 변경 */
    border-radius: 50%;
    animation: circleRotate 5s linear infinite;
}

.home-img .glowing-circle span:nth-child(1) {
    filter: blur(10px);
}

.home-img .image {
    position: relative;
    width: 330px;
    height: 330px;
    z-index: 1;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid var(--bg-color);
    /* Gap between gradient and image */
}

.home-img .image img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130%;
    height: 130%;
    object-fit: cover;
    object-position: center 20%;
    animation: globeFloat 8s ease-in-out infinite;
}

/* 지구본 스타일 부드러운 움직임 */
@keyframes globeFloat {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
    }

    25% {
        transform: translate(-48%, -51%) scale(1.02);
    }

    50% {
        transform: translate(-52%, -50%) scale(1);
    }

    75% {
        transform: translate(-50%, -49%) scale(1.02);
    }
}



.home-img .image:hover img {
    transform: translate(-50%, -50%) scale(1.1);
}

@keyframes circleRotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* About Section - FLOWLAB */
.about {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--second-bg-color);
    padding: 8rem 9%;
    min-height: auto;
}

.about-container {
    max-width: 1200px;
    width: 100%;
}

/* About Hero */
.about-hero {
    text-align: center;
    margin-bottom: 5rem;
}

.about-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.about-tagline {
    font-size: 3rem;
    font-weight: 600;
    color: var(--main-color);
    margin-bottom: 1.5rem;
    font-family: 'Playfair Display', serif;
    font-style: italic;
}

.about-subtitle {
    font-size: 1.8rem;
    color: var(--accent-color);
    line-height: 1.6;
}

/* Philosophy Cards */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-bottom: 5rem;
}

.philosophy-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    padding: 3rem 2.5rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
}

.philosophy-card:hover {
    transform: translateY(-10px);
    border-color: var(--main-color);
    box-shadow: 0 20px 40px rgba(88, 166, 255, 0.15);
}

.card-icon {
    width: 6rem;
    height: 6rem;
    margin: 0 auto 2rem;
    background: linear-gradient(135deg, var(--main-color), #22d3ee);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-icon i {
    font-size: 2.5rem;
    color: var(--bg-color);
}

.philosophy-card h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.philosophy-card p {
    font-size: 1.5rem;
    color: var(--accent-color);
    line-height: 1.7;
}

/* About Description */
.about-description {
    max-width: 800px;
    margin: 0 auto 5rem;
}

.desc-block {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
}

.desc-block p {
    font-size: 1.7rem;
    line-height: 1.9;
    color: var(--accent-color);
}

.highlight-text {
    font-size: 2rem !important;
    color: var(--text-color) !important;
}

.highlight-text span,
.desc-block p span {
    color: var(--main-color);
    font-weight: 600;
}

.ai-block {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), rgba(34, 211, 238, 0.1));
    border-radius: 2rem;
    padding: 3rem;
    border: 1px solid var(--glass-border);
}

.ai-icon {
    margin-bottom: 1.5rem;
}

.ai-icon i {
    font-size: 3rem;
    color: var(--main-color);
}

/* About Conclusion */
.about-conclusion {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--glass-bg);
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
}

.flow-text {
    font-size: 2rem;
    line-height: 2;
    color: var(--accent-color);
    margin-bottom: 3rem;
}

.flow-text span {
    color: var(--main-color);
    font-weight: 600;
}

.conclusion-tagline {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.conclusion-tagline p {
    font-size: 2.5rem;
    font-family: 'Playfair Display', serif;
    font-style: italic;
    color: var(--text-color);
}

.conclusion-tagline p span {
    color: var(--main-color);
}

/* Responsive About */
@media (max-width: 991px) {
    .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about-title {
        font-size: 3.5rem;
    }

    .about-tagline {
        font-size: 2.2rem;
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
    }

    .conclusion-tagline {
        flex-direction: column;
        gap: 1rem;
    }

    .conclusion-tagline p {
        font-size: 2rem;
    }
}

/* Programs Section */
.programs {
    background: var(--bg-color);
    padding: 8rem 9%;
    min-height: auto;
}

.programs-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Programs Header */
.programs-header {
    text-align: center;
    margin-bottom: 5rem;
}

.programs-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.programs-intro {
    font-size: 1.8rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.programs-question {
    font-size: 2.4rem;
    font-weight: 600;
    color: var(--main-color);
    margin-bottom: 2rem;
    font-family: 'Playfair Display', serif;
    font-style: italic;
}

.programs-desc {
    font-size: 1.6rem;
    color: var(--accent-color);
    line-height: 1.7;
}

/* Programs Grid */
.programs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-bottom: 5rem;
}

/* Program Card */
.program-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    padding: 3rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.program-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--main-color), #22d3ee);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.program-card:hover {
    transform: translateY(-8px);
    border-color: var(--main-color);
    box-shadow: 0 20px 40px rgba(88, 166, 255, 0.15);
}

.program-card:hover::before {
    transform: scaleX(1);
}

.program-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), rgba(34, 211, 238, 0.05));
    border-color: rgba(88, 166, 255, 0.3);
}

.program-icon {
    width: 5rem;
    height: 5rem;
    background: linear-gradient(135deg, var(--main-color), #22d3ee);
    border-radius: 1.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}

.program-icon i {
    font-size: 2.2rem;
    color: var(--bg-color);
}

.program-card h3 {
    font-size: 2.2rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.program-card h3 span {
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--accent-color);
    display: block;
    margin-top: 0.3rem;
}

.program-summary {
    font-size: 1.5rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.program-details {
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
}

.program-details p {
    font-size: 1.4rem;
    color: var(--accent-color);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.program-details p.highlight {
    color: var(--text-color);
    font-weight: 500;
    font-style: italic;
}

/* Programs Footer */
.programs-footer {
    text-align: center;
    padding: 4rem;
    background: var(--glass-bg);
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
}

.programs-footer p {
    font-size: 1.8rem;
    color: var(--accent-color);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.programs-footer .footer-highlight {
    font-size: 2.2rem;
    color: var(--main-color);
    font-weight: 600;
    margin-bottom: 0;
}

/* Responsive Programs */
@media (max-width: 991px) {
    .programs-grid {
        grid-template-columns: 1fr;
    }

    .program-card.featured {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .programs-title {
        font-size: 3.5rem;
    }

    .programs-question {
        font-size: 2rem;
    }

    .program-card {
        padding: 2rem;
    }
}

/* Contact Section */
.contact h2 {
    margin-bottom: 3rem;
}

.contact form {
    max-width: 70rem;
    margin: 1rem auto;
    text-align: center;
    margin-bottom: 3rem;
}

.contact form .input-box {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.contact form .input-box input,
.contact form textarea {
    width: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    color: var(--text-color);
    background: var(--second-bg-color);
    border-radius: .8rem;
    margin: .7rem 0;
    border: 1px solid var(--glass-border);
    transition: 0.3s;
}

.contact form .input-box input {
    width: 49%;
}

.contact form .input-box input:focus,
.contact form textarea:focus {
    border-color: var(--main-color);
    background: rgba(22, 27, 34, 0.8);
}


.contact form textarea {
    resize: none;
}

.contact form .btn {
    margin-top: 2rem;
    cursor: pointer;
}

/* Footer */
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
    background: var(--second-bg-color);
}

.footer-text p {
    font-size: 1.6rem;
}

.footer-iconTop a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.8rem;
    background: var(--main-color);
    border-radius: 0.8rem;
    transition: 0.5s ease;
}

.footer-iconTop a:hover {
    box-shadow: 0 0 1rem var(--main-color);
}

.footer-iconTop a i {
    font-size: 2.4rem;
    color: var(--second-bg-color);
}

/* Breakpoints for Responsive Design */
@media (max-width: 1200px) {
    html {
        font-size: 55%;
    }
}

@media (max-width: 991px) {
    .header {
        padding: 2rem 3%;
    }

    section {
        padding: 10rem 3% 2rem;
    }

    .portfolio-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    #menu-icon {
        display: block;
    }

    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem 3%;
        background: var(--bg-color);
        border-top: .1rem solid rgba(0, 0, 0, 0.2);
        box-shadow: 0 .5rem 1rem rgba(0, 0, 0, 0.2);
        display: none;
        /* Hidden by default */
    }

    .navbar.active {
        display: block;
        /* Show when active */
    }

    .navbar a {
        display: block;
        font-size: 2rem;
        margin: 3rem 0;
    }

    .home {
        flex-direction: column;
    }

    .home-content h3 {
        font-size: 2.6rem;
    }

    .home-content h1 {
        font-size: 5rem;
    }

    .home-img {
        width: 70vw;
        margin-top: 4rem;
    }

    .home-img .glowing-circle {
        width: 70vw;
        height: 70vw;
    }

    .home-img .glowing-circle::after {
        width: 65vw;
        height: 65vw;
    }

    .home-img .image {
        width: 65vw;
        height: 65vw;
    }

    .about {
        flex-direction: column-reverse;
    }

    .about img {
        width: 70vw;
        margin-top: 4rem;
    }

    .portfolio-container {
        grid-template-columns: 1fr;
    }
}