/* ============================================================
   Security & AI Intelligence Dashboard
   Matrix / Terminal Theme — v2.0.0
   All rules scoped to #security-ai-dashboard.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Share+Tech+Mono&display=swap');

/* ── Design tokens ─────────────────────────────────────────── */
#security-ai-dashboard {
    --green:          #00ff41;
    --green-2:        #00cc33;
    --green-3:        #008f22;
    --green-4:        #005214;
    --green-5:        #001f08;
    --green-glow:     rgba(0, 255, 65, 0.55);
    --green-glow-md:  rgba(0, 255, 65, 0.25);
    --green-glow-sm:  rgba(0, 255, 65, 0.12);
    --green-glow-xs:  rgba(0, 255, 65, 0.06);
    --cyan:           #00e5ff;
    --cyan-glow:      rgba(0, 229, 255, 0.55);
    --cyan-glow-md:   rgba(0, 229, 255, 0.25);
    --cyan-glow-sm:   rgba(0, 229, 255, 0.12);
    --red:            #ff0041;
    --amber:          #ffb700;
    --white:          #e8ffe8;
    --bg:             #000000;
    --bg-panel:       #020402;
    --bg-card:        #030603;
    --bg-card-h:      #060c06;
    --border:         rgba(0, 255, 65, 0.18);
    --border-md:      rgba(0, 255, 65, 0.38);
    --border-hi:      rgba(0, 255, 65, 0.75);
    --border-cyan:    rgba(0, 229, 255, 0.38);
    --border-cyan-hi: rgba(0, 229, 255, 0.75);
    --font-mono:      'Share Tech Mono', 'Courier New', Courier, monospace;
    --font-display:   'Orbitron', 'Share Tech Mono', monospace;
}

/* ── Root container ────────────────────────────────────────── */
#security-ai-dashboard {
    font-family:  var(--font-mono);
    background:   var(--bg);
    color:        var(--green);
    position:     relative;
    overflow:     hidden;
    border:       1px solid var(--border-md);
    box-shadow:
        0 0 0 1px rgba(0,255,65,0.04),
        0 0 40px var(--green-glow-xs),
        0 0 80px rgba(0,0,0,0.95),
        inset 0 0 80px rgba(0,0,0,0.6);
    margin:       24px 0;
    animation:    sad-flicker 14s step-end infinite;
    -webkit-font-smoothing: antialiased;
    image-rendering: pixelated;
}

/* CRT scanlines — fixed grid overlay */
#security-ai-dashboard::after {
    content:         '';
    position:        absolute;
    inset:           0;
    background:      repeating-linear-gradient(
                         to bottom,
                         transparent 0px,
                         transparent 2px,
                         rgba(0, 0, 0, 0.28) 2px,
                         rgba(0, 0, 0, 0.28) 4px
                     );
    pointer-events:  none;
    z-index:         9999;
    animation:       sad-scanmove 6s linear infinite;
}

/* CRT vignette — darker at edges */
#security-ai-dashboard::before {
    content:    '';
    position:   absolute;
    inset:      0;
    background: radial-gradient(
                    ellipse at 50% 50%,
                    transparent 55%,
                    rgba(0, 0, 0, 0.65) 100%
                );
    pointer-events: none;
    z-index:    9998;
}

/* ── Header ────────────────────────────────────────────────── */
.sad-header {
    display:          flex;
    align-items:      center;
    justify-content:  space-between;
    flex-wrap:        wrap;
    gap:              14px;
    padding:          18px 26px;
    background:       var(--bg);
    border-bottom:    1px solid var(--border);
    position:         relative;
    overflow:         hidden;
}

/* Animated horizontal scan line sweeping across the header bottom border */
.sad-header::after {
    content:    '';
    position:   absolute;
    bottom:     -1px;
    left:       -10%;
    width:      30%;
    height:     1px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    box-shadow: 0 0 10px var(--green-glow);
    animation:  sad-sweep 5s ease-in-out infinite;
}

.sad-header-brand {
    display:     flex;
    align-items: center;
    gap:         16px;
}

.sad-header-icon {
    font-family:  var(--font-display);
    font-size:    1.5rem;
    font-weight:  900;
    color:        var(--green);
    text-shadow:  0 0 12px var(--green-glow), 0 0 24px var(--green-glow-md);
    line-height:  1;
    letter-spacing: -0.05em;
    user-select:  none;
}

/* ── Title with glitch effect ──────────────────────────────── */
.sad-title {
    margin:         0;
    font-family:    var(--font-display);
    font-size:      1.1rem;
    font-weight:    700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color:          var(--green);
    text-shadow:    0 0 8px var(--green-glow-md), 0 0 20px var(--green-glow-sm);
    line-height:    1.2;
    animation:      sad-glitch 11s infinite;
    position:       relative;
}

.sad-subtitle {
    margin:         0;
    font-family:    var(--font-mono);
    font-size:      .66rem;
    color:          var(--green-3);
    letter-spacing: .06em;
    line-height:    1.8;
}

/* Blinking cursor appended to subtitle */
.sad-subtitle::after {
    content:   '_';
    color:     var(--green);
    animation: sad-blink 1.1s step-end infinite;
}

/* ── Header controls ───────────────────────────────────────── */
.sad-header-controls {
    display:     flex;
    align-items: center;
    gap:         16px;
}

/* Live indicator — square blinking pixel */
.sad-live-dot {
    width:         8px;
    height:        8px;
    background:    var(--green);
    box-shadow:    0 0 6px var(--green-glow), 0 0 14px var(--green-glow-md);
    flex-shrink:   0;
    animation:     sad-blink 1.4s step-end infinite;
    /* intentionally square — no border-radius */
}

.sad-last-updated {
    font-family:    var(--font-mono);
    font-size:      .68rem;
    color:          var(--green-3);
    letter-spacing: .04em;
    white-space:    nowrap;
}

.sad-last-updated::before {
    content: '// ';
    color:   var(--green-4);
}

/* Refresh button */
.sad-refresh-btn {
    display:        flex;
    align-items:    center;
    gap:            7px;
    padding:        7px 16px;
    border:         1px solid var(--border-md);
    background:     transparent;
    color:          var(--green-2);
    font-family:    var(--font-mono);
    font-size:      .72rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    cursor:         pointer;
    transition:     border-color .12s, box-shadow .12s, color .12s, background .12s;
    white-space:    nowrap;
    /* No border-radius — sharp terminal style */
}

.sad-refresh-btn:hover,
.sad-refresh-btn:focus {
    border-color: var(--green);
    color:        var(--green);
    box-shadow:   0 0 12px var(--green-glow-sm), inset 0 0 14px var(--green-glow-xs);
    background:   rgba(0, 255, 65, 0.04);
    outline:      none;
}

.sad-refresh-btn svg {
    stroke:     var(--green-2);
    flex-shrink: 0;
    transition: stroke .12s;
}

.sad-refresh-btn:hover svg { stroke: var(--green); }

.sad-refresh-btn.spinning svg {
    animation: sad-spin .65s linear infinite;
}

/* ── Two-column layout ─────────────────────────────────────── */
.sad-columns {
    display:               grid;
    grid-template-columns: 1fr 1fr;
    min-height:            660px;
}

.sad-column {
    display:        flex;
    flex-direction: column;
    border-right:   1px solid var(--border);
}

.sad-column:last-child { border-right: none; }

/* ── Column headers ────────────────────────────────────────── */
.sad-col-header {
    display:          flex;
    align-items:      center;
    justify-content:  space-between;
    padding:          11px 18px;
    border-bottom:    1px solid var(--border);
    background:       var(--bg-panel);
    position:         sticky;
    top:              0;
    z-index:          10;
    overflow:         hidden;
}

/* InfoSec — green top bar + persistent glow */
.sad-col-header--sec {
    border-top: 2px solid var(--green);
    box-shadow: 0 -8px 24px rgba(0,255,65,0.08), inset 0 0 30px rgba(0,255,65,0.03);
}

/* AI — cyan top bar + persistent glow */
.sad-col-header--ai {
    border-top: 2px solid var(--cyan);
    box-shadow: 0 -8px 24px rgba(0,229,255,0.08), inset 0 0 30px rgba(0,229,255,0.03);
}

.sad-col-label {
    display:     flex;
    align-items: center;
    gap:         10px;
}

.sad-col-icon { font-size: 1rem; }

.sad-col-header h2 {
    margin:         0;
    font-family:    var(--font-display);
    font-size:      .74rem;
    font-weight:    700;
    letter-spacing: .18em;
    text-transform: uppercase;
}

.sad-col-header--sec h2 {
    color:       var(--green);
    text-shadow: 0 0 10px var(--green-glow-md), 0 0 20px var(--green-glow-sm);
}

.sad-col-header--ai h2 {
    color:       var(--cyan);
    text-shadow: 0 0 10px var(--cyan-glow-md), 0 0 20px var(--cyan-glow-sm);
}

.sad-col-count {
    font-family:    var(--font-mono);
    font-size:      .62rem;
    color:          var(--green-4);
    border:         1px solid var(--border);
    padding:        2px 8px;
    letter-spacing: .06em;
    /* sharp corners */
}

#sad-ai-col .sad-col-count { border-color: rgba(0,229,255,0.15); }

/* ── Source filter buttons ─────────────────────────────────── */
.sad-filters {
    display:       flex;
    flex-wrap:     wrap;
    gap:           5px;
    padding:       8px 14px;
    border-bottom: 1px solid var(--border);
    background:    var(--bg);
}

.sad-filter-btn {
    padding:        3px 9px;
    border:         1px solid var(--border);
    background:     transparent;
    color:          var(--green-3);
    font-family:    var(--font-mono);
    font-size:      .62rem;
    letter-spacing: .05em;
    text-transform: uppercase;
    cursor:         pointer;
    transition:     all .1s ease;
    white-space:    nowrap;
    /* No border-radius */
}

.sad-filter-btn::before { content: '['; margin-right: 1px; opacity: .45; }
.sad-filter-btn::after  { content: ']'; margin-left:  1px; opacity: .45; }

.sad-filter-btn:hover {
    color:        var(--green);
    border-color: var(--border-md);
    box-shadow:   0 0 8px var(--green-glow-xs);
}

/* InfoSec column active filter */
#sad-infosec-col .sad-filter-btn.active {
    color:        var(--green);
    border-color: var(--border-hi);
    background:   rgba(0, 255, 65, 0.07);
    box-shadow:   0 0 10px var(--green-glow-xs), inset 0 0 8px var(--green-glow-xs);
    text-shadow:  0 0 6px var(--green-glow-sm);
}

/* AI column active filter */
#sad-ai-col .sad-filter-btn.active {
    color:        var(--cyan);
    border-color: var(--border-cyan-hi);
    background:   rgba(0, 229, 255, 0.06);
    box-shadow:   0 0 10px var(--cyan-glow-sm), inset 0 0 8px var(--cyan-glow-sm);
    text-shadow:  0 0 6px var(--cyan-glow-sm);
}

/* ── Articles scroll container ─────────────────────────────── */
.sad-articles {
    flex:           1;
    overflow-y:     auto;
    padding:        10px;
    display:        flex;
    flex-direction: column;
    gap:            5px;
    background:     var(--bg);
    scrollbar-width:       thin;
    scrollbar-color: var(--green-5) transparent;
}

.sad-articles::-webkit-scrollbar       { width: 3px; }
.sad-articles::-webkit-scrollbar-track { background: transparent; }
.sad-articles::-webkit-scrollbar-thumb {
    background: var(--green-4);
    /* no border-radius */
}
.sad-articles::-webkit-scrollbar-thumb:hover { background: var(--green-3); }

/* ── Loading / Error / Empty states ───────────────────────── */
.sad-loading,
.sad-error,
.sad-empty {
    display:        flex;
    flex-direction: column;
    align-items:    flex-start;
    padding:        28px 18px;
    font-family:    var(--font-mono);
    font-size:      .76rem;
    gap:            6px;
    line-height:    1.7;
}

.sad-loading { color: var(--green-3); }
.sad-error   { color: var(--red);     }
.sad-empty   { color: var(--green-4); }

/* Terminal cursor "spinner" */
.sad-spinner {
    display:      inline-block;
    width:        9px;
    height:       1em;
    background:   var(--green);
    box-shadow:   0 0 6px var(--green-glow);
    vertical-align: middle;
    margin-left:  4px;
    animation:    sad-blink .85s step-end infinite;
}

/* ── Article cards ─────────────────────────────────────────── */
.sad-card {
    display:         flex;
    flex-direction:  column;
    gap:             5px;
    padding:         11px 14px;
    background:      var(--bg-card);
    border:          1px solid var(--border);
    cursor:          pointer;
    text-decoration: none;
    color:           inherit;
    position:        relative;
    overflow:        hidden;
    transition:      border-color .12s ease, box-shadow .12s ease, background .12s ease;
    animation:       sad-fadein .2s ease both;
    /* No border-radius — hard terminal corners */
}

/* Corner bracket — top-left horizontal */
.sad-card::before {
    content:    '';
    position:   absolute;
    top:        0;
    left:       0;
    width:      0;
    height:     2px;
    background: var(--source-color, var(--green));
    transition: width .2s ease;
}

/* Corner bracket — top-left vertical */
.sad-card::after {
    content:    '';
    position:   absolute;
    top:        0;
    left:       0;
    width:      2px;
    height:     0;
    background: var(--source-color, var(--green));
    transition: height .2s ease;
}

.sad-card:hover {
    border-color: var(--source-color, var(--green));
    box-shadow:
        0 0 12px rgba(0,255,65,0.06),
        0 0 24px rgba(0,255,65,0.03),
        inset 0 0 20px rgba(0,255,65,0.02);
    background:      var(--bg-card-h);
    text-decoration: none;
    color:           inherit;
}

.sad-card:hover::before { width:  20px; }
.sad-card:hover::after  { height: 20px; }

/* ── Card internals ────────────────────────────────────────── */
.sad-card-meta {
    display:     flex;
    align-items: center;
    gap:         8px;
    flex-wrap:   wrap;
}

.sad-source-tag {
    font-family:    var(--font-mono);
    font-size:      .59rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color:          var(--source-color, var(--green-3));
    white-space:    nowrap;
    opacity:        .9;
}

.sad-source-tag::before { content: '[ '; opacity: .5; }
.sad-source-tag::after  { content: ' ]'; opacity: .5; }

.sad-time {
    font-family:    var(--font-mono);
    font-size:      .59rem;
    color:          var(--green-4);
    margin-left:    auto;
    white-space:    nowrap;
    letter-spacing: .04em;
}

.sad-card-title {
    font-family:        var(--font-mono);
    font-size:          .82rem;
    font-weight:        400;
    color:              var(--green-2);
    line-height:        1.45;
    display:            -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow:           hidden;
    letter-spacing:     .01em;
    transition:         color .12s, text-shadow .12s;
}

.sad-card:hover .sad-card-title {
    color:       var(--green);
    text-shadow: 0 0 8px var(--green-glow-sm);
}

.sad-card-desc {
    font-family:        var(--font-mono);
    font-size:          .7rem;
    color:              var(--green-3);
    line-height:        1.65;
    display:            -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow:           hidden;
}

.sad-card-footer {
    display:         flex;
    align-items:     center;
    justify-content: flex-end;
    margin-top:      2px;
}

.sad-read-more {
    font-family:    var(--font-mono);
    font-size:      .6rem;
    color:          var(--green-4);
    letter-spacing: .1em;
    text-transform: uppercase;
    transition:     color .12s, text-shadow .12s;
}

.sad-read-more::before { content: '>> '; }

.sad-card:hover .sad-read-more {
    color:       var(--source-color, var(--green));
    text-shadow: 0 0 6px var(--green-glow-sm);
}

/* ── Per-feed error badge ──────────────────────────────────── */
.sad-feed-error {
    padding:        7px 12px;
    border:         1px solid rgba(255, 0, 65, 0.28);
    background:     rgba(255, 0, 65, 0.04);
    font-family:    var(--font-mono);
    font-size:      .66rem;
    color:          var(--red);
    letter-spacing: .05em;
}

.sad-feed-error::before { content: '! ERR // '; opacity: .7; }

/* ── Keyframe animations ───────────────────────────────────── */

/* Title glitch — fires rarely, feels organic */
@keyframes sad-glitch {
    0%, 84%, 100% {
        text-shadow: 0 0 8px var(--green-glow-md), 0 0 18px var(--green-glow-sm);
        transform:   none;
        color:       var(--green);
    }
    85% {
        text-shadow: -4px 0 var(--red), 4px 0 var(--cyan);
        transform:   translate(-2px, 0);
        color:       var(--white);
    }
    86% {
        text-shadow: 4px 0 var(--red), -4px 0 var(--cyan);
        transform:   translate(3px, 0) skewX(-4deg);
        color:       var(--white);
    }
    87% {
        text-shadow: -2px 0 var(--red), 2px 0 var(--cyan);
        transform:   translate(-1px, 0) skewX(2deg);
    }
    88% {
        text-shadow: 0 0 8px var(--green-glow-md);
        transform:   none;
        color:       var(--green);
    }
    /* Second micro-glitch burst */
    91.5% {
        text-shadow: -5px 0 var(--red), 5px 0 var(--cyan);
        transform:   translate(2px, 1px) scaleX(1.01);
        color:       var(--white);
        letter-spacing: .17em;
    }
    92% {
        text-shadow: 0 0 8px var(--green-glow-md), 0 0 18px var(--green-glow-sm);
        transform:   none;
        color:       var(--green);
        letter-spacing: .14em;
    }
}

/* Screen flicker — very infrequent, subliminal */
@keyframes sad-flicker {
    0%, 18%, 22%, 60%, 64%, 100% { opacity: 1; }
    19%, 20%  { opacity: 0.93; }
    21%       { opacity: 0.98; }
    61%, 63%  { opacity: 0.96; }
    62%       { opacity: 0.91; }
}

/* Scanline slow drift */
@keyframes sad-scanmove {
    from { background-position: 0 0; }
    to   { background-position: 0 8px; }
}

/* Sweep line across header bottom border */
@keyframes sad-sweep {
    0%   { left: -30%; opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { left: 110%; opacity: 0; }
}

/* Cursor / live-dot blink */
@keyframes sad-blink {
    0%, 49%   { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Refresh icon spin */
@keyframes sad-spin {
    to { transform: rotate(360deg); }
}

/* Card entrance — slide in from left, terminal-style */
@keyframes sad-fadein {
    from { opacity: 0; transform: translateX(-6px); }
    to   { opacity: 1; transform: translateX(0);    }
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
    .sad-columns {
        grid-template-columns: 1fr;
    }
    .sad-column {
        border-right:  none;
        border-bottom: 1px solid var(--border);
    }
    .sad-column:last-child { border-bottom: none; }
    .sad-articles          { max-height: 65vh; }
}

@media (max-width: 620px) {
    .sad-header {
        flex-direction: column;
        align-items:    flex-start;
        padding:        14px 16px;
        gap:            10px;
    }
    .sad-header-controls {
        width:           100%;
        justify-content: space-between;
    }
    .sad-title         { font-size: .92rem; }
    .sad-col-header h2 { font-size: .68rem; }
}