@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@100..900&display=swap');

:root {
    --color-bg: linear-gradient(135deg, #fff8e0, #d6e4ff, #ffe0f0, #fff8e0);
    --color-text: #1b263b;
    --color-text-secondary: #555;
    --color-heading: #333;
    --color-strong: #1E3A8A;
    --color-strong-hover: #415a77;
    --color-highlight: #ffe0f0;
    --color-box: white;
    --color-shadow: rgba(0, 0, 0, 0.1);
    --color-card-hover: rgba(0, 0, 0, 0.2);
    --color-contact-bg: #1E3A8A;
    --color-contact-text: white;
    --color-contact-accent: #ffe0f0;
}

.dark {
    --color-bg: linear-gradient(135deg, #1e1e2f, #2c2f4a, #3a2f4d, #1e1e2f);
    --color-text: #e2e8f0;
    --color-text-secondary: #cbd5e1;
    --color-heading: #f8fafc;
    --color-strong: #60a5fa;
    --color-strong-hover: #93c5fd;
    --color-highlight: #f472b6;
    --color-box: #2b2b3c;
    --color-shadow: rgba(0, 0, 0, 0.4);
    --color-card-hover: rgba(255, 255, 255, 0.1);
    --color-contact-bg: #111827;
    --color-contact-text: #e0e0f0;
    --color-contact-accent: #f9a8d4;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--color-bg);
    background-size: 200% 200%;
    animation: gradient 15s ease infinite;
    font-family: "Outfit", sans-serif;
    color: var(--color-text);
    min-height: 100vh;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar {
    position: fixed;
    top: 0;
    right: 0;
    padding: 40px 50px;
    z-index: 100;
    animation: fadeIn 1s ease-out;
}

.navbar a {
    text-decoration: none;
    font-size: 20px;
    color: var(--color-text);
    margin-left: 45px;
    transition: 0.3s;
}

.navbar a:hover {
    color: var(--color-strong-hover);
}

button#theme-toggle {
    background: transparent;
    border: none;
    font-size: 20px;
    margin-left: 20px;
    cursor: pointer;
}

button#theme-toggle i {
    color: var(--color-text);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 50px 80px;
    animation: fadeIn 1s ease-out;
}

.page-title {
    text-align: center;
    margin-bottom: 30px;
}

.page-title h1 {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--color-strong), #9333EA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    color: var(--color-text-secondary);
}

.category-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
}

.category-btn {
    padding: 12px 30px;
    font-size: 16px;
    font-family: "Outfit", sans-serif;
    font-weight: 600;
    border: 2px solid var(--color-strong);
    border-radius: 25px;
    background: transparent;
    color: var(--color-strong);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-btn:hover {
    background: var(--color-strong);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.category-btn.active {
    background: linear-gradient(135deg, var(--color-strong), #9333EA);
    color: white;
    border-color: transparent;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.project-card {
    background: var(--color-box);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 12px var(--color-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
    animation: fadeIn 1.2s ease-out;
}

.project-card.hidden {
    display: none;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--color-card-hover);
}

.project-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #9333EA, var(--color-strong));
    padding: 5px 12px;
    border-radius: 15px;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 15px;
    border-left: 5px solid var(--color-strong);
    padding-left: 15px;
}

.project-description {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.project-tech {
    margin-bottom: 20px;
}

.project-tech h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-strong);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    background: linear-gradient(135deg, var(--color-strong), #9333EA);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.project-features {
    margin-bottom: 20px;
}

.project-features h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-strong);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-features ul {
    list-style: none;
    padding-left: 0;
}

.project-features li {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.project-features li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-strong);
    font-weight: bold;
}

.project-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.project-link {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--color-strong);
    color: white;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    border-radius: 6px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.project-link:hover {
    background-color: var(--color-strong-hover);
    transform: scale(1.05);
}

@media (max-width: 1000px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background-color: white;
        padding: 15px 10px;
        display: flex;
        justify-content: space-around;
        align-items: center;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        z-index: 100;
        transition: top 0.3s ease;
    }

    .navbar a {
        font-size: 14px;
        color: black;
        margin: 0 8px;
    }

    .dark .navbar {
        background-color: var(--color-box);
    }

    .dark .navbar a {
        color: var(--color-text);
    }

    .container {
        padding: 90px 20px 40px;
    }

    .page-title {
        margin-bottom: 25px;
    }

    .page-title h1 {
        font-size: 28px;
    }

    .page-title p {
        font-size: 14px;
    }

    .category-filter {
        gap: 8px;
        padding: 0 10px;
        margin-bottom: 30px;
    }

    .category-btn {
        padding: 8px 16px;
        font-size: 13px;
        flex: 0 1 auto;
        min-width: fit-content;
        white-space: nowrap;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .project-card {
        padding: 20px;
    }

    .project-category {
        font-size: 11px;
        padding: 4px 10px;
    }

    .project-title {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .project-description {
        font-size: 14px;
        margin-bottom: 15px;
    }

    .project-tech h4,
    .project-features h4 {
        font-size: 13px;
        margin-bottom: 8px;
    }

    .tech-tag {
        font-size: 11px;
        padding: 4px 10px;
    }

    .project-features li {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .project-link {
        font-size: 13px;
        padding: 8px 16px;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 12px 8px;
    }

    .navbar a {
        font-size: 12px;
        margin: 0 5px;
    }

    #theme-toggle {
        font-size: 16px;
        margin-left: 5px;
    }

    .container {
        padding: 85px 15px 30px;
    }

    .page-title h1 {
        font-size: 24px;
    }

    .page-title p {
        font-size: 12px;
    }

    .category-filter {
        gap: 6px;
        padding: 0 5px;
    }

    .category-btn {
        padding: 6px 12px;
        font-size: 11px;
        min-width: fit-content;
    }

    .project-card {
        padding: 15px;
    }

    .project-title {
        font-size: 18px;
    }

    .project-description {
        font-size: 13px;
    }

    .tech-tag {
        font-size: 10px;
        padding: 3px 8px;
    }
}
#contact {
  background-color: var(--color-contact-bg);
  color: var(--color-contact-text);
  padding: 60px 20px;
  text-align: center;
}

#contact h2 {
  font-size: 30px;
  margin-bottom: 25px;
}

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

.contact-info p,
.contact-info a {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--color-contact-text);
  text-decoration: none;
}

.contact-info strong {
  color: var(--color-contact-accent);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 25px;
}

.social-links a {
  font-weight: bold;
  font-size: 18px;
  color: var(--color-contact-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

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