* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --bg: #004643;
    --headline: #fffffe;
    --paragraph: #abd1c6;
    --button: #f9bc60;
    --button-text: #001e1d;
    --stroke: #001e1d;
    --main: #e8e4e6;
    --highlight: #f9bc60;
    --secondary: #abd1c6;
    --tertiary: #e16162;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--paragraph);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 20px 0;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 70, 67, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--highlight);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--paragraph);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--highlight);
}

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

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--headline);
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    color: var(--highlight);
    margin-bottom: 30px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-button {
    background: var(--button);
    color: var(--button-text);
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    animation: fadeInUp 1s ease 0.6s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(249, 188, 96, 0.3);
}

/* Skills Section */
.skills {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg) 0%, #003a38 100%);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--headline);
    margin-bottom: 60px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.skill-card {
    background: rgba(171, 209, 198, 0.1);
    border: 2px solid var(--secondary);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(249, 188, 96, 0.1), transparent);
    transition: left 0.5s ease;
}

.skill-card:hover::before {
    left: 100%;
}

.skill-card:hover {
    transform: translateY(-10px);
    border-color: var(--highlight);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.skill-icon {
    width: 80px;
    height: 80px;
    background: var(--highlight);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--button-text);
}

.skill-card h3 {
    color: var(--headline);
    font-size: 1.5rem;
    margin-bottom: 15px;
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: var(--bg);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.project-card {
    background: linear-gradient(145deg, rgba(171, 209, 198, 0.1), rgba(249, 188, 96, 0.05));
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(171, 209, 198, 0.2);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
    height: 200px;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--button-text);
}

.project-content {
    padding: 30px;
}

.project-content h3 {
    color: var(--headline);
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tag {
    background: var(--highlight);
    color: var(--button-text);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
}

.card-link {
    display: block;
    color: inherit;
    text-decoration: none;
    height: 100%;
    width: 100%;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #003a38 0%, var(--bg) 100%);
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.contact-btn {
    background: transparent;
    border: 2px solid var(--highlight);
    color: var(--highlight);
    padding: 12px 25px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: bold;
}

.contact-btn:hover {
    background: var(--highlight);
    color: var(--button-text);
    transform: translateY(-2px);
}

.copy-toast {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    font-size: 0.95rem;
    opacity: 0;
    transition: opacity 0.3s ease, bottom 0.3s ease;
    z-index: 1000;
}

.copy-toast.show {
    display: block;
    opacity: 1;
    bottom: 40px;
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content h1 {
        font-size: 2rem;
        line-height: 1.2;
        padding: 0 10px;
    }

    .hero-content .subtitle {
        font-size: 1.2rem;
        padding: 0 10px;
    }

    .hero-content p {
        font-size: 1rem;
        padding: 0 10px;
    }

    .section-title {
        font-size: 2rem;
        padding: 0 10px;
        word-wrap: break-word;
        hyphens: auto;
    }

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

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

    .contact-buttons {
        flex-direction: column;
        align-items: center;
    }

    .contact-content {
        padding: 0 10px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.7rem;
        text-align: center;
        line-height: 1.3;
    }

    .container {
        padding: 0 15px;
    }
}

/* Scroll indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: var(--highlight);
    z-index: 1001;
    transition: width 0.3s ease;
}

/* Footer */
footer {
    background: var(--bg, rgba(0, 70, 67, 0.95));
    color: var(--paragraph);
    padding: 40px 20px;
    text-align: center;
    font-size: 0.95rem;
    border-top: 1px solid var(--bg, rgba(171, 209, 198, 0.2));
    position: relative;
    z-index: 999;
}

footer .container {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-nav {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: var(--highlight);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-nav a:hover {
    color: var(--paragraph);
}

.footer-note {
    font-size: 0.85rem;
    opacity: 0.75;
}

/* Mouse Click */

.click-ripple {
    position: fixed;
    width: 15px;
    height: 15px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple-effect 0.4s ease-out;
    pointer-events: none;
    z-index: 9999;
    will-change: transform, opacity;
}

@keyframes ripple-effect {
    to {
        transform: translate(-50%, -50%) scale(3);
        opacity: 0;
    }
}