:root {
    --primary-color: #00b199;
    --bg-color: #111111;
    --card-bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --text-muted-color: #888;
    --border-color: #333;
    --heading-font: 'Fira Code', monospace;
    --body-font: 'Inter', sans-serif;
    --navbar-height: 56px;
}

body {
    padding-top: var(--navbar-height);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--body-font);
}

[data-bs-theme="dark"] {
    --bs-body-bg: var(--bg-color);
    --bs-body-color: var(--text-color);
    --bs-secondary-color: var(--text-muted-color);
    --bs-primary: var(--primary-color);
    --bs-primary-rgb: 0, 177, 153;
}

section {
    padding-top: 4rem !important;
    padding-bottom: 4rem !important;
}

section h2 {
    font-family: var(--heading-font);
    font-weight: 500;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.navbar {
    background-color: rgba(17, 17, 17, 0.8);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-family: var(--heading-font);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.navbar-brand {
    overflow: hidden;
    white-space: nowrap;
    animation: typing 2s steps(11, end);
}

@keyframes typing {
    from { width: 0 }
    to { width: 11ch }
}

.cursor {
    display: inline-block;
    width: 10px;
    height: 1.5rem;
    background-color: var(--primary-color);
    margin-left: 5px;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.nav-link {
    font-family: var(--heading-font);
    font-weight: 400;
    color: var(--text-color);
    transition: all 0.2s ease-in-out;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color) !important;
    transform: none;
}

.card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.badge.bg-primary {
    background-color: var(--primary-color) !important;
    color: var(--bg-color) !important;
    font-weight: 500;
}

.badge.bg-secondary {
    background-color: #333 !important;
    color: #ccc !important;
    font-weight: 400;
}

.badge.bg-secondary:hover {
    background-color: var(--primary-color) !important;
    color: var(--bg-color) !important;
    cursor: default;
}

.visually-hidden-focusable:not(:focus):not(:focus-within) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.navbar.nav-hidden {
    transform: translateY(-100%); 
}

.navbar.scrolled {
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.project-card-flip {
    background-color: transparent;
    perspective: 1000px;
    border: none;
}

.project-card-flip:hover {
    transform: none;
    border: none;
}

.project-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    min-height: 250px; /* Adjust this value as needed */
}

.project-card-flip:hover .project-card-inner {
    transform: rotateY(180deg);
}

.project-card-front, .project-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 1.25rem;
    border-radius: var(--bs-card-border-radius);
}

.project-card-front {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
}

.project-card-back {
    background-color: var(--card-bg-color);
    border: 1px solid var(--primary-color);
    transform: rotateY(180deg);
}