/* ═══════════════════════════════════════════════════════════
   AEH CONNECT — Loading Screen
   ═══════════════════════════════════════════════════════════ */

/* ── Overlay ── */
#aeh-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: #080c12;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#aeh-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* ── Fiber SVG background ── */
.loader-fiber {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    animation: fiberFadeIn 0.5s ease 0.1s forwards;
}

@keyframes fiberFadeIn {
    to { opacity: 1; }
}

.fiber-trace {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: traceIn 1.4s ease forwards;
}
.ft1 { animation-delay: 0.1s; }
.ft2 { animation-delay: 0.25s; }
.ft3 { animation-delay: 0.4s; }
.ft4 { animation-delay: 0.55s; }
.ft5 { animation-delay: 0.7s; }

@keyframes traceIn {
    to { stroke-dashoffset: 0; }
}

/* ── Center block ── */
.loader-center {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    text-align: center;
}

/* ── Orbital ring ── */
.loader-ring {
    position: relative;
    width: 100px;
    height: 100px;
    margin-bottom: 0.5rem;
    animation: ringAppear 0.4s ease 0.2s both;
}

@keyframes ringAppear {
    from { opacity: 0; transform: scale(0.6); }
    to   { opacity: 1; transform: scale(1); }
}

.ring-inner {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: #00ADEF;
    border-right-color: #00d4ff;
    animation: spin 1.4s linear infinite;
    box-shadow: 0 0 16px #00ADEF55;
}

.ring-inner::before {
    content: '';
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    border: 1px solid #00ADEF33;
    border-bottom-color: #00d4ff;
    animation: spinRev 2s linear infinite;
}

.ring-inner::after {
    content: '';
    position: absolute;
    inset: 18px;
    border-radius: 50%;
    background: radial-gradient(circle, #00ADEF22 0%, transparent 70%);
    animation: corePulse 1.2s ease-in-out infinite alternate;
}

.ring-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #00ADEF;
    box-shadow: 0 0 20px #00ADEF, 0 0 40px #00ADEF88;
    animation: corePulse 1s ease-in-out infinite alternate;
}

@keyframes spin     { to { transform: rotate(360deg); } }
@keyframes spinRev  { to { transform: rotate(-360deg); } }
@keyframes corePulse {
    from { opacity: 0.6; box-shadow: 0 0 10px #00ADEF; }
    to   { opacity: 1;   box-shadow: 0 0 30px #00ADEF, 0 0 60px #00d4ff88; }
}

/* ── Brand letters ── */
.loader-brand {
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
    user-select: none;
}

.brand-aeh {
    display: flex;
    gap: 0.05em;
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2rem, 7vw, 3.8rem);
    font-weight: 800;
    letter-spacing: 0.12em;
    color: #fff;
    text-transform: uppercase;
}

.brand-sep {
    font-size: clamp(1.2rem, 4vw, 2.2rem);
    color: #00ADEF;
    margin: 0 0.15em;
    opacity: 0;
    animation: letterPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) calc(var(--i) * 90ms + 400ms) forwards;
}

.brand-connect {
    display: flex;
    gap: 0.02em;
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2rem, 7vw, 3.8rem);
    font-weight: 300;
    letter-spacing: 0.18em;
    color: #ffffff;
    text-transform: uppercase;
}

.bl {
    opacity: 0;
    display: inline-block;
    animation: letterPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) calc(var(--i) * 80ms + 300ms) forwards;
}

@keyframes letterPop {
    0%   { opacity: 0; transform: translateY(20px) scale(0.8); filter: blur(4px); }
    60%  { filter: blur(0); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* Glow sweep on brand — fires once after all letters appear */
.loader-brand::after {
    content: '';
    position: absolute;
    top: 0; left: -60%;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,173,239,0.25), transparent);
    animation: glowSweep 0.6s ease 1.4s forwards;
    opacity: 0;
    pointer-events: none;
}
.loader-center { position: relative; }

@keyframes glowSweep {
    0%   { left: -60%; opacity: 1; }
    100% { left: 120%;  opacity: 0; }
}

/* ── Tagline ── */
.loader-tagline {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(0.7rem, 2vw, 0.85rem);
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: #6b8fa8;
    opacity: 0;
    animation: fadeUp 0.5s ease 1.1s forwards;
}

.dot-blink {
    color: #00ADEF;
    animation: blink 1.2s step-start infinite;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    33%       { opacity: 0.3; }
    66%       { opacity: 0.7; }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Progress bar ── */
.loader-bar-wrap {
    width: clamp(220px, 50vw, 380px);
    opacity: 0;
    animation: fadeUp 0.4s ease 1.3s forwards;
}

.loader-bar-track {
    position: relative;
    height: 3px;
    background: rgba(0, 173, 239, 0.12);
    border-radius: 99px;
    overflow: visible;
}

.loader-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 99px;
    background: linear-gradient(90deg, #0A3C5A, #00ADEF, #00d4ff);
    animation: fillBar 1.8s cubic-bezier(0.4, 0, 0.2, 1) 1.3s forwards;
    box-shadow: 0 0 10px #00ADEF88;
}

.loader-bar-glow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: radial-gradient(circle, #00d4ff66 0%, transparent 70%);
    left: 0%;
    animation: glowFollow 1.8s cubic-bezier(0.4, 0, 0.2, 1) 1.3s forwards;
    pointer-events: none;
}

@keyframes fillBar    { to { width: 100%; } }
@keyframes glowFollow { to { left: calc(100% - 15px); } }

/* Nodes on the track */
.loader-bar-nodes {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    padding: 0 2px;
}

.node {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #0A3C5A;
    border: 1px solid #00ADEF44;
    transition: background 0.3s, box-shadow 0.3s;
}

.node.lit {
    background: #00ADEF;
    box-shadow: 0 0 8px #00ADEF;
    border-color: #00d4ff;
}

/* ── Corner decorations ── */
.loader-corner {
    position: absolute;
    width: 36px;
    height: 36px;
}

.loader-corner span {
    position: absolute;
    background: #00ADEF;
    opacity: 0;
    animation: cornerIn 0.3s ease forwards;
}

.loader-corner span:first-child { width: 2px; height: 100%; }
.loader-corner span:last-child  { width: 100%; height: 2px; }

.loader-corner.tl { top: 24px; left: 24px; }
.loader-corner.tl span { animation-delay: 0.8s; }
.loader-corner.tl span:first-child { top: 0; left: 0; }
.loader-corner.tl span:last-child  { top: 0; left: 0; }

.loader-corner.tr { top: 24px; right: 24px; }
.loader-corner.tr span { animation-delay: 0.9s; }
.loader-corner.tr span:first-child { top: 0; right: 0; }
.loader-corner.tr span:last-child  { top: 0; right: 0; }

.loader-corner.bl { bottom: 24px; left: 24px; }
.loader-corner.bl span { animation-delay: 1s; }
.loader-corner.bl span:first-child { bottom: 0; left: 0; }
.loader-corner.bl span:last-child  { bottom: 0; left: 0; }

.loader-corner.br { bottom: 24px; right: 24px; }
.loader-corner.br span { animation-delay: 1.1s; }
.loader-corner.br span:first-child { bottom: 0; right: 0; }
.loader-corner.br span:last-child  { bottom: 0; right: 0; }

@keyframes cornerIn {
    from { opacity: 0; transform: scale(0.5); }
    to   { opacity: 0.8; transform: scale(1); }
}

/* ── Scanline overlay (subtle) ── */
#aeh-loader::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(0, 173, 239, 0.015) 3px,
        rgba(0, 173, 239, 0.015) 4px
    );
    pointer-events: none;
    z-index: 1;
}

/* ── Body lock while loading ── */
body.loading {
    overflow: hidden;
}