/* ------------------------------
   Global Typography & Layout
------------------------------ */
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, sans-serif;
    line-height: 1.6;
    color: #d8dee9;
    background-color: #1b1f2b;
    margin: 0;
}

main {
    min-height: 70vh;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

/* Main content panel (all pages use main > .container) */
main > .container {
    background-color: #2e3440;
    border-radius: 12px;
    padding-top: 2rem;
    padding-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* Headings */
h1,
h2,
h3,
h4 {
    font-weight: 600;
    color: #e5e9f0;
}

/* Muted text */
.text-muted {
    color: #cbd5e1 !important;
}

/* ------------------------------
   Navbar (Nord Dark)
------------------------------ */
.navbar-dark.bg-dark {
    background-color: #151821 !important;
    border-bottom: 1px solid #2e3440;
}

.navbar-brand {
    font-weight: 600;
    letter-spacing: 0.5px;
    color: #eceff4 !important;
}

.nav-link {
    margin-left: 0.5rem;
    color: #d8dee9 !important;
}

.nav-link:hover {
    color: #eceff4 !important;
}

.nav-link.active {
    font-weight: 600;
    color: #eceff4 !important;
    border-bottom: 2px solid #88c0d0;
}

/* ------------------------------
   Index Page Profile Picture
------------------------------ */
.profile-photo {
    max-width: 220px;
    border-radius: 50%;
    border: 4px solid #4c566a;
    box-shadow: 0 0 18px rgba(0, 0, 0, 0.8);
}

/* ------------------------------
   Buttons (Nord Frost)
------------------------------ */
.btn-primary {
    background-color: #5e81ac;
    border-color: #5e81ac;
    color: #eceff4;
}

.btn-primary:hover {
    background-color: #81a1c1;
    border-color: #81a1c1;
    color: #2e3440;
}

.btn-outline-secondary {
    border-color: #d8dee9;
    color: #d8dee9;
}

.btn-outline-secondary:hover {
    background-color: #d8dee9;
    color: #2e3440;
}

/* ------------------------------
   Project & Content Cards
------------------------------ */
.card {
    border-radius: 10px;
    background-color: #3b4252;
    border: 1px solid #434c5e;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
}

.card-img-top {
    border-radius: 10px 10px 0 0;
}

.card-title {
    font-weight: 600;
    color: #eceff4;
}

.card-text {
    color: #d8dee9;
}

/* ------------------------------
   Contact Form Styles
------------------------------ */
#contactForm input,
#contactForm textarea,
#contactForm select {
    border-radius: 6px;
    background-color: #3b4252;
    border: 1px solid #4c566a;
    color: #eceff4;
}

#contactForm input::placeholder,
#contactForm textarea::placeholder {
    color: #81a1c1;
}

#contactForm input:focus,
#contactForm textarea:focus,
#contactForm select:focus {
    border-color: #88c0d0;
    outline: none;
    box-shadow: 0 0 0 0.18rem rgba(136, 192, 208, 0.25);
}

#formStatus {
    font-weight: 600;
}

/* Error message visibility helper */
.d-none {
    display: none;
}

/* ------------------------------
   Links
------------------------------ */
a {
    color: #88c0d0;
    text-decoration: none;
}

a:hover {
    color: #8fbcbb;
    text-decoration: underline;
}

/* ------------------------------
   Horizontal Rules
------------------------------ */
hr {
    border-color: #434c5e;
}

/* ------------------------------
   Accordion (Experience Page)
------------------------------ */
.accordion {
    background-color: transparent;
}

.accordion-item {
    background-color: #3b4252;
    border: 1px solid #434c5e;
}

.accordion-button {
    background-color: #3b4252;
    color: #eceff4;
}

.accordion-button:not(.collapsed) {
    background-color: #4c566a;
    color: #eceff4;
    box-shadow: none;
}

.accordion-button::after {
    filter: invert(1);
}

.accordion-body {
    background-color: #3b4252;
    color: #d8dee9;
}

/* ------------------------------
   Carousel
------------------------------ */
/* Carousel inside project cards */
.card-carousel-img {
    max-height: 220px;
    object-fit: cover;
    border-radius: 10px 10px 0 0;
}

#projectsCarousel .carousel-caption,
.card .carousel-caption {
    background: rgba(46, 52, 64, 0.75);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
}

.card .carousel-control-prev-icon,
.card .carousel-control-next-icon {
    filter: invert(1);
}

/* ------------------------------
   Footer
------------------------------ */
footer {
    margin-top: 3rem;
    border-top: 1px solid #2e3440;
    background-color: #151821;
    color: #d8dee9;
}

/* Accessible high-contrast buttons (WCAG-compliant) */
.btn-primary-accessible {
    background-color: #1f6feb; /* High-contrast blue */
    color: #ffffff;
    border-color: #1f6feb;
}

.btn-primary-accessible:hover,
.btn-primary-accessible:focus {
    background-color: #1a5fd0;
    border-color: #1a5fd0;
    color: #ffffff;
}

.btn-secondary-accessible {
    background-color: #2e3440; /* Nord Polar Night */
    color: #eceff4;
    border-color: #2e3440;
}

.btn-secondary-accessible:hover,
.btn-secondary-accessible:focus {
    background-color: #3b4252;
    border-color: #3b4252;
    color: #eceff4;
}