/* ==========================================
   GLOBAL STYLES & RESET
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Strict Color Palette */
    --navy-blue: #1a2a4a;
    --orange: #ff6b35;
    --white: #ffffff;
    --gray: #6b7280;
    --light-gray: #f3f4f6;
    --dark-gray: #374151;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transitions */
    --transition-smooth: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==========================================
   NAVIGATION
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(26, 42, 74, 0.1);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy-blue);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--orange);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--orange);
    transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--navy-blue);
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--navy-blue) 0%, #2d4065 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    color: var(--white);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: #e85a28;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
}

/* Hero Visual Elements - Minimal Animation */
.hero-visual {
    position: relative;
    height: 400px;
}

.floating-element {
    position: absolute;
    border-radius: 20px;
    opacity: 0.15;
}

.element-1 {
    width: 200px;
    height: 200px;
    background-color: var(--orange);
    top: 50px;
    right: 50px;
    animation: float-gentle 6s ease-in-out infinite;
}

.element-2 {
    width: 150px;
    height: 150px;
    background-color: var(--white);
    bottom: 100px;
    right: 200px;
    animation: float-gentle 8s ease-in-out infinite reverse;
}

.element-3 {
    width: 100px;
    height: 100px;
    background-color: var(--orange);
    top: 150px;
    left: 100px;
    animation: float-gentle 7s ease-in-out infinite;
}

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

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--navy-blue);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.about-photo {
    flex-shrink: 0;
}

.profile-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--orange);
    box-shadow: 0 10px 30px rgba(26, 42, 74, 0.15);
    transition: var(--transition-smooth);
}

.profile-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.25);
}

.about-text {
    flex: 1;
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray);
}

/* ==========================================
   SERVICES SECTION
   ========================================== */
.services {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(26, 42, 74, 0.08);
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(26, 42, 74, 0.15);
    border-color: var(--orange);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--orange), #ff8558);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--navy-blue);
    margin-bottom: var(--spacing-md);
}

.service-detail {
    margin-bottom: var(--spacing-md);
}

.service-detail strong {
    display: block;
    color: var(--navy-blue);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.service-detail p {
    color: var(--gray);
    line-height: 1.6;
}

/* ==========================================
   PROJECTS SECTION
   ========================================== */
.projects {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.125rem;
    margin-top: -var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.project-card {
    background-color: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
}

.project-card:hover {
    border-color: var(--orange);
    box-shadow: 0 8px 25px rgba(26, 42, 74, 0.12);
    transform: translateY(-3px);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
}

.project-title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--navy-blue);
    flex: 1;
}

.project-badge {
    background-color: var(--orange);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.project-section {
    margin-bottom: var(--spacing-md);
}

.project-section strong {
    display: block;
    color: var(--navy-blue);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.project-section p {
    color: var(--gray);
    line-height: 1.6;
}

.tools-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tool-tag {
    background-color: var(--light-gray);
    color: var(--navy-blue);
    padding: 0.375rem 0.875rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--navy-blue) 0%, #2d4065 100%);
    text-align: center;
}

.contact .section-title {
    color: var(--white);
}

.contact-cta {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
}

.contact-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background-color: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: 0 5px 20px rgba(255, 107, 53, 0.3);
}

.contact-icon:hover,
.contact-icon:focus {
    background-color: var(--white);
    color: var(--orange);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background-color: var(--navy-blue);
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

/* Tablet */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .profile-photo {
        width: 150px;
        height: 150px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    /* Mobile Navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: 0 5px 20px rgba(26, 42, 74, 0.1);
        transition: left 0.3s ease;
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}

/* Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .profile-photo {
        width: 120px;
        height: 120px;
    }
    
    .about-text p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .project-card {
        padding: var(--spacing-md);
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
    }
    
    .contact-icons {
        gap: var(--spacing-md);
    }
}