/* =======================================================
   AMETHYST VOID — Portfolio Theme  |  Andre Maestas
   ======================================================= */

/* === KEYFRAMES === */
@keyframes ring-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer-sweep {
    from { background-position: -200% center; }
    to   { background-position:  200% center; }
}

/* === DESIGN TOKENS === */
:root {
    /* Backgrounds */
    --bg-void:     #08080F;
    --bg-deep:     #0D0D1F;
    --bg-surface:  #111127;
    --bg-elevated: #17173B;
    --bg-card:     #131331;

    /* Purple spectrum */
    --accent:        #9333EA;
    --accent-bright: #C084FC;
    --accent-deep:   #6B21A8;
    --accent-glow:   rgba(147, 51, 234, 0.35);
    --accent-soft:   rgba(192, 132, 252, 0.12);

    --purple-400: #A78BFA;
    --purple-300: #C4B5FD;
    --purple-200: #DDD6FE;

    /* Text */
    --text-primary:   #EDE9FF;
    --text-secondary: #A89EC4;
    --text-muted:     #5E5578;

    /* Borders */
    --border-subtle: rgba(139, 92, 246, 0.10);
    --border-mid:    rgba(167, 139, 250, 0.22);
    --border-glow:   rgba(192, 132, 252, 0.40);

    /* Glass */
    --glass:           rgba(13, 13, 31, 0.78);
    --glass-highlight: rgba(139, 92, 246, 0.06);

    /* Typography */
    --font-display: 'Syne', system-ui, sans-serif;
    --font-body:    'DM Sans', system-ui, sans-serif;

    /* Type scale */
    --base-font-size: 16px;
    --scale-h1: 52px;
    --scale-h2: 30px;
    --scale-h3: 20px;
    --lead:     17px;
    --small:    14px;
    --xs:       12px;

    /* Weights */
    --fw-regular: 400;
    --fw-medium:  500;
    --fw-bold:    700;
    --fw-black:   800;

    /* Spacing */
    --space-xxs:  4px;
    --space-xs:   8px;
    --space-sm:   12px;
    --space-md:   20px;
    --space-lg:   32px;
    --space-xl:   56px;
    --container-max-width: 1100px;

    /* Radii */
    --radius-sm:   6px;
    --radius-md:   12px;
    --radius-lg:   20px;
    --radius-full: 9999px;

    /* Easing */
    --dur-fast: 150ms;
    --dur-mid:  280ms;
    --dur-slow: 550ms;
    --ease:     cubic-bezier(0.22, 0.9, 0.30, 1);
    --ease-out: cubic-bezier(0.00, 0.00, 0.20, 1);
}

/* === BASE RESET === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--base-font-size);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    /* Layered ambient nebula fixed to viewport */
    background-image:
        radial-gradient(ellipse 90% 55% at 12%   5%, rgba(109,  40, 217, 0.14), transparent 65%),
        radial-gradient(ellipse 65% 45% at 88%  92%, rgba(147,  51, 234, 0.09), transparent 60%),
        radial-gradient(ellipse 45% 35% at 50%  50%, rgba( 76,  29, 149, 0.06), transparent 55%);
    background-attachment: fixed;
}

a {
    color: var(--accent-bright);
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

ul, ol { list-style: none; }
h1:focus { outline: none; }

/* === SKIP LINK === */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    background: var(--accent);
    color: #fff;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: var(--fw-medium);
    z-index: 9999;
    transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: var(--space-md); }

/* === HEADER === */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 68px;
    z-index: 1000;
    background: rgba(8, 8, 15, 0.60);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-subtle);
}

@supports not (backdrop-filter: blur(18px)) {
    .site-header { background: rgba(8, 8, 15, 0.96); }
}

.header-inner {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-weight: var(--fw-bold);
    font-size: 15px;
    letter-spacing: 1px;
    text-transform: uppercase;
    background: linear-gradient(90deg, var(--text-primary), var(--purple-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: opacity var(--dur-fast) var(--ease);
}
.logo:hover { opacity: 0.75; }

/* === NAV === */
.main-nav {
    display: flex;
    align-items: center;
    position: relative;
}

.nav-toggle-input {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
    pointer-events: none;
}

.nav-toggle-label {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-xs);
    z-index: 1100;
    border-radius: var(--radius-sm);
}

.nav-toggle-label span {
    display: block;
    width: 22px; height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
    transform-origin: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xxs);
}

.nav-link {
    position: relative;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: var(--small);
    font-weight: var(--fw-medium);
    letter-spacing: 0.4px;
    padding: var(--space-xs) var(--space-sm);
    text-decoration: none;
    transition: color var(--dur-fast) var(--ease);
    border-radius: var(--radius-sm);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 3px;
    left: var(--space-sm);
    right: var(--space-sm);
    height: 1.5px;
    background: linear-gradient(90deg, var(--accent), var(--accent-bright));
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur-mid) var(--ease);
}

.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link:focus-visible {
    outline: 2px solid var(--accent-bright);
    outline-offset: 2px;
}

/* === MAIN === */
.site-main { padding-top: 68px; }

/* === CONTAINERS === */
.section-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-heading {
    font-family: var(--font-display);
    font-size: var(--scale-h2);
    font-weight: var(--fw-bold);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--purple-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

/* === HERO === */
.hero {
    position: relative;
    overflow: hidden;
    padding-top: 120px;
    padding-bottom: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(800px 500px at 50%   0%, rgba(109, 40, 217, 0.20), transparent 60%),
        radial-gradient(400px 300px at 90%  90%, rgba(147, 51, 234, 0.09), transparent 55%);
}

/* Subtle grain overlay */
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 200px 200px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Profile photo with animated ring */
.profile-wrapper {
    position: relative;
    width: 160px; height: 160px;
    border-radius: 50%;
}

.profile-wrapper::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent      0deg,
        var(--accent)   80deg,
        var(--accent-bright) 140deg,
        var(--purple-300)    200deg,
        var(--accent)        280deg,
        transparent          330deg,
        transparent          360deg
    );
    animation: ring-spin 5s linear infinite;
    z-index: -1;
}

.profile-wrapper::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent       0deg,
        var(--accent-deep)  80deg,
        var(--accent)       160deg,
        var(--accent-bright) 220deg,
        transparent          290deg
    );
    filter: blur(10px);
    animation: ring-spin 5s linear infinite;
    z-index: -2;
    opacity: 0.65;
}

.profile-img {
    width: 100%; height: 100%;
    border-radius: 50%;
    object-fit: cover;
    position: relative;
    z-index: 1;
    border: 3px solid var(--bg-deep);
}

.hero-greeting {
    font-family: var(--font-body);
    font-size: var(--small);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: var(--space-lg);
}

.hero-name {
    font-family: var(--font-display);
    font-size: var(--scale-h1);
    font-weight: var(--fw-black);
    line-height: 1;
    letter-spacing: -0.5px;
    margin-top: var(--space-xs);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--purple-200) 55%, var(--accent-bright) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-family: var(--font-body);
    font-size: var(--scale-h3);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

.hero-intro {
    max-width: 600px;
    font-size: var(--lead);
    color: var(--text-secondary);
    margin-top: var(--space-md);
    line-height: 1.75;
}

.hero-cta {
    margin-top: var(--space-lg);
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
}

.btn-primary-cta {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 100%);
    color: #fff;
    font-family: var(--font-body);
    font-weight: var(--fw-medium);
    font-size: 15px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    text-decoration: none;
    box-shadow: 0 4px 24px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.15);
    transition:
        transform   var(--dur-fast) var(--ease),
        box-shadow  var(--dur-fast) var(--ease),
        filter      var(--dur-fast) var(--ease);
    letter-spacing: 0.3px;
}

.btn-primary-cta:hover {
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(147, 51, 234, 0.55), inset 0 1px 0 rgba(255,255,255,0.2);
    filter: brightness(1.08);
}
.btn-primary-cta:active { transform: scale(0.97); }

.hero-social {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    align-items: center;
    justify-content: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px; height: 42px;
    border-radius: var(--radius-full);
    background: var(--glass-highlight);
    border: 1px solid var(--border-subtle);
    transition:
        background     var(--dur-fast) var(--ease),
        border-color   var(--dur-fast) var(--ease),
        transform      var(--dur-fast) var(--ease),
        box-shadow     var(--dur-fast) var(--ease);
}

.social-link:hover {
    background: rgba(147, 51, 234, 0.18);
    border-color: var(--border-mid);
    transform: translateY(-3px);
    box-shadow: 0 8px 22px var(--accent-glow);
}

.social-icon {
    width: 20px; height: 20px;
    filter: brightness(0) invert(1);
    opacity: 0.70;
    transition: opacity var(--dur-fast) var(--ease);
}
.social-link:hover .social-icon { opacity: 1; }

/* === ABOUT === */
.about-section {
    padding: var(--space-xl) 0;
    background: rgba(17, 17, 39, 0.70);
    border-top:    1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(8px);
}

.about-grid {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
    position: relative;
}

.about-grid::before {
    content: '';
    position: absolute;
    left: calc(55% + var(--space-lg) / 2);
    top: 8%; bottom: 8%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--border-mid), transparent);
    pointer-events: none;
}

.about-text {
    font-size: var(--lead);
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: var(--space-md);
}
.about-text:last-child { margin-bottom: 0; }

.about-right { padding-left: var(--space-lg); }

.skills-heading {
    font-family: var(--font-display);
    font-size: var(--scale-h3);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-chip {
    display: inline-block;
    background: var(--glass-highlight);
    color: var(--purple-300);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: var(--small);
    font-weight: var(--fw-medium);
    border: 1px solid var(--border-subtle);
    cursor: default;
    transition:
        background    var(--dur-fast) var(--ease),
        border-color  var(--dur-fast) var(--ease),
        color         var(--dur-fast) var(--ease),
        transform     var(--dur-fast) var(--ease);
}
.skill-chip:hover {
    background: rgba(147, 51, 234, 0.16);
    border-color: var(--border-mid);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* === FOOTER === */
.site-footer {
    height: 68px;
    background: transparent;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
}

.footer-inner {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-copy {
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: var(--small);
}

.footer-links { display: flex; gap: var(--space-md); }

.footer-link {
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: var(--small);
    text-decoration: none;
    transition: color var(--dur-fast) var(--ease);
}
.footer-link:hover { color: var(--accent-bright); }

/* === BLAZOR === */
#blazor-error-ui {
    background: rgba(127, 0, 0, 0.96);
    bottom: 0; left: 0;
    box-shadow: 0 -1px 2px rgba(0,0,0,0.4);
    display: none;
    padding: 0.6rem 1.25rem 0.7rem;
    position: fixed;
    width: 100%;
    z-index: 2000;
    color: white;
    font-family: var(--font-body);
    font-size: var(--small);
}
#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, #7f0000;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}
.blazor-error-boundary::after { content: "An error has occurred."; }

.valid.modified:not([type=checkbox]) { outline: 1px solid var(--accent-bright); }
.invalid { outline: 1px solid #f87171; }
.validation-message { color: #f87171; font-size: var(--small); font-family: var(--font-body); }

/* === RESPONSIVE === */
@media (max-width: 959px) {
    .about-grid { grid-template-columns: 1fr; }
    .about-grid::before { display: none; }
    .about-right { padding-left: 0; }
}

@media (max-width: 599px) {
    :root {
        --scale-h1: 36px;
        --scale-h2: 24px;
        --lead: 16px;
    }

    .header-inner { padding: 0 var(--space-md); }

    .hero {
        padding-top: 80px;
        padding-bottom: 60px;
    }

    .profile-wrapper { width: 112px; height: 112px; }

    .nav-toggle-label { display: flex; }

    .nav-links {
        display: none;
        position: fixed;
        top: 68px; left: 0; right: 0;
        background: rgba(8, 8, 15, 0.97);
        backdrop-filter: blur(18px);
        flex-direction: column;
        align-items: center;
        padding: var(--space-lg) 0;
        gap: var(--space-sm);
        border-bottom: 1px solid var(--border-subtle);
        z-index: 999;
    }

    .nav-toggle-input:checked ~ .nav-links { display: flex; }

    .nav-toggle-input:checked + .nav-toggle-label span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle-input:checked + .nav-toggle-label span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle-input:checked + .nav-toggle-label span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .site-footer { height: auto; padding: var(--space-md) 0; }
    .footer-inner { flex-direction: column; gap: var(--space-xs); text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}