/* ===== CSS Variables ===== */
:root {
    --primary-color: #FFA500;
    --primary-dark: #FF8C00;
    --accent-color: #FF6B00;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-white: #ffffff;
    --bg-gray: #f8f9fa;
    --bg-light: #fafbfc;
    --border-color: #e5e5e5;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Sora', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    text-decoration: none;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all 0.3s ease;
}

/* ===== Hero Section ===== */
.hero {
    padding: 160px 0 100px;
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background-color: rgba(255, 165, 0, 0.1);
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 20px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.title-main {
    display: block;
    color: var(--text-dark);
    font-size: 42px;
    margin-bottom: 12px;
}

.title-highlight {
    display: block;
    color: var(--primary-color);
    font-size: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.btn {
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-block;
    letter-spacing: 0.3px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-white);
    box-shadow: 0 4px 16px rgba(255, 165, 0, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 165, 0, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-dark);
    border: 2px solid var(--border-color);
}

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

.hero-visual {
    position: relative;
    height: 500px;
}

.floating-shape {
    position: absolute;
    border-radius: 16px;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(255, 165, 0, 0.2), rgba(255, 107, 0, 0.1));
    top: 0;
    right: 0;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(255, 165, 0, 0.15), rgba(255, 107, 0, 0.08));
    bottom: 50px;
    left: 50px;
    animation-delay: 1s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(255, 165, 0, 0.1), rgba(255, 107, 0, 0.05));
    top: 100px;
    left: 100px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 40px;
    letter-spacing: -1px;
}

.about-heading {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.about-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 16px;
}

.about-right {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.value-card {
    background-color: var(--bg-white);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    color: var(--primary-color);
}

.value-icon svg {
    width: 100%;
    height: 100%;
}

.value-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: 0.5px;
}

/* ===== Services Section ===== */
.services {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.title-decoration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.deco-line {
    width: 60px;
    height: 2px;
    background-color: var(--border-color);
}

.deco-diamond {
    width: 12px;
    height: 12px;
    background-color: var(--primary-color);
    transform: rotate(45deg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background-color: var(--bg-light);
    padding: 48px 32px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.service-card:hover {
    background-color: var(--bg-white);
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    color: var(--primary-color);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: 0.3px;
}

/* ===== Works Section ===== */
.works {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.work-filters {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    font-size: 13px;
    font-weight: 600;
    background-color: var(--bg-white);
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    font-family: 'Sora', sans-serif;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.work-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.work-item.hidden {
    display: none;
}

.work-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.work-image {
    position: relative;
    height: 320px;
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
    overflow: hidden;
}

.work-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 165, 0, 0.95), rgba(255, 107, 0, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.work-info {
    text-align: center;
    color: var(--bg-white);
    padding: 32px;
}

.work-info h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.work-info p {
    font-size: 15px;
    opacity: 0.9;
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
}

.contact-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.contact-item {
    text-align: center;
}

.contact-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    color: var(--primary-color);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.contact-text p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-content p {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-white);
        padding: 24px;
        box-shadow: var(--shadow-md);
        gap: 20px;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .title-main {
        font-size: 32px;
    }
    
    .title-highlight {
        font-size: 40px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-visual {
        height: 300px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .works-grid {
        grid-template-columns: 1fr;
    }
    
    .work-filters {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .title-main {
        font-size: 24px;
    }
    
    .title-highlight {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about,
    .services,
    .works,
    .contact {
        padding: 60px 0;
    }
}

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

.hero-content > * {
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    animation-delay: 0.1s;
}

.hero-title {
    animation-delay: 0.2s;
}

.hero-subtitle {
    animation-delay: 0.3s;
}

.hero-buttons {
    animation-delay: 0.4s;
}