/* Global Styles */
:root {
    --tib-dark: #0a192f;
    --tib-navy: #112240;
    --tib-blue: #233554;
    --tib-cyan: #64ffda;
    --tib-white: #e6f1ff;
    --tib-slate: #8892b0;
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--tib-dark);
    color: var(--tib-slate);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--tib-white);
    font-weight: 700;
}

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

a:hover {
    color: var(--tib-cyan);
    text-decoration: underline;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--tib-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--tib-blue);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--tib-cyan);
}

/* Navbar */
.navbar {
    background-color: rgba(10, 25, 47, 0.85) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(100, 255, 218, 0.1);
    transition: var(--transition);
    padding: 1.25rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--tib-cyan) !important;
}

.nav-link-custom {
    color: var(--tib-white) !important;
    font-size: 0.9rem;
    margin-left: 1.5rem;
    position: relative;
    font-weight: 500;
}

.nav-link-custom:hover, .nav-link-custom.active {
    color: var(--tib-cyan) !important;
}

.toggle-lang {
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--tib-cyan);
    border-radius: 4px;
    color: var(--tib-cyan);
    margin-left: 1rem; 
    transition: var(--transition);
}

.toggle-lang:hover, .toggle-lang.active {
    background: rgba(100, 255, 218, 0.1);
    text-decoration: none;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(10, 25, 47, 0.9), rgba(10, 25, 47, 0.85)), url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.hero-subtitle {
    color: var(--tib-cyan);
    font-family: 'Fira Code', monospace;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(40px, 8vw, 70px);
    font-weight: 800;
    color: var(--tib-white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-desc {
    max-width: 600px;
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.btn-tib-primary {
    background-color: transparent;
    color: var(--tib-cyan);
    border: 1px solid var(--tib-cyan);
    padding: 1rem 1.75rem;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 1rem;
    transition: var(--transition);
}

.btn-tib-primary:hover {
    background-color: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
    color: var(--tib-cyan);
}

/* Section Common */
.section-header {
    margin-bottom: 4rem;
    display: flex;
    align-items: center;
    white-space: nowrap;
    width: 100%;
}

.section-title {
    font-size: 2rem;
    color: var(--tib-white);
    margin-right: 1.5rem;
    position: relative;
}

.section-title::before {
    content: "0" counter(section) ".";
    counter-increment: section;
    color: var(--tib-cyan);
    font-family: 'Fira Code', monospace;
    font-size: 1.5rem;
    margin-right: 10px;
    font-weight: 400;
}

.section-line {
    height: 1px;
    background-color: var(--tib-blue);
    width: 300px;
    max-width: 100%;
}

body {
    counter-reset: section;
}

/* Services Cards */
.service-card {
    background-color: var(--tib-navy);
    padding: 2rem;
    height: 100%;
    border-radius: 4px;
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
    z-index: 1;
}

.service-card:hover {
    transform: translateY(-7px);
    border-color: var(--tib-cyan);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--tib-cyan);
    margin-bottom: 1.5rem;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--tib-white);
}

/* Projects Section */
.project-card {
    position: relative;
    background-color: var(--tib-navy);
    border-radius: 4px;
    transition: var(--transition);
    overflow: hidden;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-content {
    padding: 2rem;
}

.project-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.folder-icon {
    color: var(--tib-cyan);
    font-size: 2.5rem;
}

.external-links a {
    color: var(--tib-white);
    font-size: 1.4rem;
    margin-left: 1rem;
}

.external-links a:hover {
    color: var(--tib-cyan);
}

.project-title {
    color: var(--tib-white);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-desc {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.project-tech-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    margin-top: auto;
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
}

.project-tech-list li {
    margin-right: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--tib-slate);
}

/* About Section */
.about-img-wrapper {
    position: relative;
    width: 60%;
    margin: 50px auto 0;
}

.about-img-wrapper::after {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    border: 2px solid var(--tib-cyan);
    border-radius: 4px;
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: -1;
    transition: var(--transition);
}

.about-img-wrapper:hover::after {
    top: 15px;
    left: 15px;
}

.about-img {
    border-radius: 4px;
    filter: grayscale(100%) contrast(1);
    transition: var(--transition);
    display: block;
    width: 100%;
}

.about-img-wrapper:hover .about-img {
    filter: none;
}

.blockquote-custom {
    border-left: 2px solid var(--tib-cyan);
    padding-left: 1.5rem;
    margin-top: 2rem;
    color: var(--tib-white);
    font-style: italic;
}

/* Footer */
footer {
    background-color: #020c1b;
    padding: 3rem 0;
    text-align: center;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
}

.social-links {
    margin-bottom: 1.5rem;
}

.social-links a {
    color: var(--tib-slate);
    font-size: 1.4rem;
    margin: 0 1rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--tib-cyan);
    transform: translateY(-3px);
}