html, body {
    font-family: var(--font-body);
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: #0071c1;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

/* ── Keyboard focus ──────────────────────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

:focus:not(:focus-visible) {
    outline: none;
}

.content {
    padding-top: 1.1rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}


/*new css form thead portfolio*/

/* Legacy variable aliases — mapped to design tokens defined in variables.css */
:root {
    --primary-color:   var(--primary);
    --secondary-color: var(--secondary);
    --accent-color:    var(--danger);
    --bg-primary:      var(--bg);
    --bg-secondary:    var(--surface);
    --bg-tertiary:     var(--surface-2);
    --text-primary:    var(--text);
    --text-secondary:  var(--muted);
    --text-muted:      var(--muted);
    --border-color:    var(--border);
    --success-color:   var(--success);
    --shadow-sm:       0 2px 8px var(--shadow);
    --shadow-md:       0 4px 16px var(--shadow);
    --shadow-lg:       0 8px 32px var(--shadow);
    --transition:      all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.page {
    min-height: 100vh;
    transition: var(--transition);
}

/* ── Header & Navigation ──────────────────────────────────── */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    padding: 0.35rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
    flex-shrink: 0;
}

.nav-brand:hover {
    color: var(--primary-color);
    border-color: var(--border-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 0.15rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-link {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.4rem 0.7rem;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.12);
}

/* Hamburger — hidden on desktop */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    transition: border-color 0.2s ease;
}

.nav-toggle:hover {
    border-color: var(--primary-color);
}

.nav-toggle-bar {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Main layout offset ───────────────────────────────────── */
main {
    padding-top: 64px;
}

/* Anchor scroll offset — prevents sections scrolling behind the fixed navbar */
section[id] {
    scroll-margin-top: 64px;
}

/* Legacy alias — kept while existing sections remain in Home.razor */
.main-content {
    margin-top: 64px;
}

/* ── Skip navigation link ────────────────────────────────────────── */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    background: var(--primary);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 1rem;
}

/* ── Footer copy ─────────────────────────────────────────────────── */
.footer-copy {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}


/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 2rem;
}

.footer-content {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

    .social-links a {
        color: var(--muted);
        text-decoration: none;
        font-size: 0.875rem;
        transition: color 0.2s ease;
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
    }

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

.footer-social-icon {
    font-size: 1rem;
    display: flex;
    align-items: center;
}

/* ── Section entrance animations ─────────────────────────────────── */
section {
    opacity: 0;
    transform: translateY(16px);
}

.fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Back to top button ───────────────────────────────────────────── */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 900;                         /* below navbar (1000) */
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;

    /* Hidden by default */
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition:
        opacity        0.25s ease,
        transform      0.25s ease,
        background     0.2s  ease,
        border-color   0.2s  ease,
        color          0.2s  ease;
}

.back-to-top.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.back-to-top:active {
    transform: translateY(0);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

/* ── Theme toggle button ──────────────────────────────────────────── */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    color: var(--text-primary);
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.theme-toggle-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.theme-toggle-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

.theme-toggle-btn svg {
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.theme-toggle-btn:hover svg {
    transform: rotate(22deg) scale(1.1);
}

/* ── Smooth theme transition ──────────────────────────────────────── */
/* Applied for 400 ms during a theme switch; removed immediately after. */
.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *::before,
.theme-transitioning *::after {
    transition:
        background-color  0.3s ease,
        border-color      0.3s ease,
        color             0.25s ease,
        box-shadow        0.3s ease,
        fill              0.25s ease,
        stroke            0.25s ease !important;
}

@media (max-width: 640px) {
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex; /* show hamburger */
    }

    .nav-links {
        /* Hidden drawer — slides in when .is-open is added by Blazor */
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--nav-mobile-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 0 1rem;
        z-index: 999;

        /* Hidden by default */
        opacity: 0;
        transform: translateY(-8px);
        pointer-events: none;
        transition: opacity 0.22s ease, transform 0.22s ease;
    }

    .nav-links.is-open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .nav-link {
        padding: 0.75rem 1.5rem;
        border-radius: 0;
        font-size: 0.95rem;
        border-bottom: 1px solid rgba(51, 65, 85, 0.4);
    }

    .nav-link:last-of-type {
        border-bottom: none;
    }
}