/* ===================================
   소일웹 - Main Stylesheet
   =================================== */

/* CSS Variables */
:root {
    --primary-color: #054680;
    --primary-dark: #033156;
    --primary-light: #0a6ebd;
    --secondary-color: #333333;
    --text-color: #666666;
    --text-dark: #333333;
    --text-light: #999999;
    --white: #ffffff;
    --light-bg: #f5f5f5;
    --dark-bg: #1a1a1a;
    --border-color: #eae9e9;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --side-header-width: 300px;
    --font-primary: 'Noto Sans KR', sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

/* Container */
.container {
    width: 100%;
    max-width: 1170px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.btn-white:hover {
    background-color: transparent;
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ===================================
   Side Header (Left Sidebar)
   =================================== */
#side-header {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--side-header-width);
    height: 100vh;
    background-color: var(--white);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    overflow-y: auto;
}

.side-header-wrapper {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 30px 25px;
}

/* Logo */
.logo-container {
    text-align: center;
    margin-bottom: 40px;
}

.logo-link {
    display: inline-block;
}

.logo {
    max-width: 180px;
    height: auto;
}

/* Main Menu */
.main-menu ul {
    margin-bottom: 40px;
}

.main-menu ul li {
    margin-bottom: 5px;
}

.main-menu ul li a {
    display: block;
    padding: 12px 15px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dark);
    border-left: 3px solid transparent;
    transition: var(--transition);
}

.main-menu ul li a:hover,
.main-menu ul li a.active {
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    background-color: rgba(5, 70, 128, 0.05);
}

/* Side Header Content */
.side-header-content {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.social-links {
    margin-bottom: 20px;
    text-align: center;
}

.social-links .social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin: 0 5px;
    font-size: 1.2rem;
    color: var(--text-dark);
    background-color: var(--light-bg);
    border-radius: 4px;
    transition: var(--transition);
}

.social-links .social-icon:hover {
    color: var(--white);
    background-color: var(--primary-color);
}

.contact-info {
    text-align: center;
    font-size: 0.9rem;
}

.contact-info .phone-number {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--text-dark);
}

.contact-info .email a {
    color: var(--primary-color);
}

.contact-info .email a:hover {
    text-decoration: underline;
}

/* ===================================
   Mobile Header
   =================================== */
#mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    padding: 10px 20px;
}

#mobile-header .mobile-logo {
    height: 40px;
}

#mobile-header .mobile-logo img {
    height: 100%;
    width: auto;
}

.mobile-menu-toggle {
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-dark);
    margin-bottom: 5px;
    transition: var(--transition);
}

.mobile-menu-toggle span:last-child {
    margin-bottom: 0;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
#mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

#mobile-nav.mobile-nav-open {
    max-height: 300px;
}

#mobile-nav ul {
    padding: 20px;
}

#mobile-nav ul li {
    margin-bottom: 10px;
}

#mobile-nav ul li a {
    display: block;
    padding: 10px 15px;
    font-size: 1rem;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
}

#mobile-nav ul li:last-child a {
    border-bottom: none;
}

/* ===================================
   Main Wrapper
   =================================== */
#wrapper {
    margin-left: var(--side-header-width);
    min-height: 100vh;
}

/* ===================================
   Hero Slider
   =================================== */
#hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.slider-container {
    width: 100%;
    height: 100%;
}

.slide {
    position: relative;
    width: 100%;
    height: 100%;
    display: none;
}

.slide.active {
    display: block;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.slide-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(5, 70, 128, 0.6);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    width: 90%;
    max-width: 800px;
}

.slide-heading {
    font-size: 4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    padding: 15px 30px;
    background-color: rgba(5, 70, 128, 0.4);
    display: inline-block;
}

.slide-caption {
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--white);
    padding: 10px 20px;
    background-color: rgba(5, 70, 128, 0.4);
    display: inline-block;
}

/* ===================================
   Sections
   =================================== */
.section {
    padding: 80px 0;
}

.section-dark {
    background-color: var(--light-bg);
}

.section-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.section-primary h2,
.section-primary p {
    color: var(--white);
}

.section-title {
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

/* ===================================
   Content Boxes (Services)
   =================================== */
.content-boxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.content-box {
    text-align: center;
    padding: 40px 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.content-box:hover {
    transform: translateY(-10px);
}

.content-box-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    background-color: rgba(5, 70, 128, 0.1);
    border-radius: 50%;
}

.content-box-heading {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.content-box-content {
    font-size: 0.95rem;
    color: var(--text-color);
    line-height: 1.7;
}

/* ===================================
   About Section
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text .section-title {
    margin-bottom: 30px;
}

.about-text p {
    margin-bottom: 20px;
}

.about-text .btn {
    margin-top: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-number::after {
    content: '+';
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-color);
}

/* ===================================
   Portfolio Section
   =================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.portfolio-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(5, 70, 128, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-info {
    text-align: center;
    color: var(--white);
    transform: translateY(20px);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-info {
    transform: translateY(0);
}

.portfolio-info h4 {
    color: var(--white);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.portfolio-category {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===================================
   Contact CTA Section
   =================================== */
#contact-cta {
    padding: 100px 0;
}

.cta-content h2 {
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* ===================================
   Footer
   =================================== */
#footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    max-width: 120px;
    margin-bottom: 15px;
    filter: brightness(0) invert(1);
}

.footer-info p,
.footer-contact p {
    font-size: 0.9rem;
    color: #aaa;
    margin-bottom: 10px;
}

.footer-contact h4,
.footer-social h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-contact a {
    color: var(--primary-light);
}

.footer-social .social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin-right: 10px;
    font-size: 1.1rem;
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    transition: var(--transition);
}

.footer-social .social-links a:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.9rem;
    color: #777;
}

/* ===================================
   Responsive Design
   =================================== */
@media screen and (max-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media screen and (max-width: 1024px) {
    :root {
        --side-header-width: 250px;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .slide-heading {
        font-size: 3rem;
    }

    .slide-caption {
        font-size: 1.4rem;
    }
}

@media screen and (max-width: 768px) {
    #side-header {
        display: none;
    }

    #mobile-header {
        display: flex;
        align-items: center;
    }

    #mobile-nav {
        display: block;
    }

    #wrapper {
        margin-left: 0;
        padding-top: 60px;
    }

    #hero-slider {
        height: calc(100vh - 60px);
    }

    .slide-heading {
        font-size: 2rem;
        padding: 10px 20px;
    }

    .slide-caption {
        font-size: 1.1rem;
        padding: 8px 15px;
    }

    .section {
        padding: 60px 0;
    }

    .content-boxes {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .stat-number {
        font-size: 2rem;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-logo {
        margin: 0 auto 15px;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
}

@media screen and (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .slide-heading {
        font-size: 1.5rem;
    }

    .slide-caption {
        font-size: 1rem;
    }

    .btn {
        width: 100%;
        padding: 15px 20px;
    }
}

/* ===================================
   Page Templates
   =================================== */
/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    padding: 100px 0 60px;
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 10px;
}

.page-header .breadcrumb {
    font-size: 0.9rem;
    opacity: 0.8;
}

.page-header .breadcrumb a {
    color: var(--white);
}

.page-header .breadcrumb a:hover {
    text-decoration: underline;
}

/* Page Content */
.page-content {
    padding: 80px 0;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    font-size: 1rem;
    font-family: var(--font-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(5, 70, 128, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.info-item {
    padding: 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.info-item h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

@media screen and (max-width: 768px) {
    .page-header {
        padding: 80px 0 40px;
    }

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

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}