/* ============================================================
   style.css — Otaku Engagement System v5.0
   びーの (Aki Hibino) Portfolio
   ============================================================ */

/* ===========================
   CSS Variables & Base
=========================== */
:root {
    --neon-cyan:    #00f3ff;
    --neon-magenta: #ff00ff;
    --neon-green:   #00ff88;
    --neon-yellow:  #ffee00;
    --dark-bg:      #050508;
    --panel-bg:     rgba(8, 8, 16, 0.85);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--dark-bg);
    color: #e0e0e0;
    overflow-x: hidden;
    position: relative;
}

/* ===========================
   Background Layers
=========================== */

/* Animated noise */
body::before {
    content: "";
    position: fixed;
    inset: -150%;
    z-index: -3;
    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAMAAAAp4XiDAAAAUVBMVEVfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX1+9f6YfAAAAGnRSTlMAAAAAAAAAMzMzMzMzMzMzMzMzMzMzMzMzM7A6P3QAAAAEZ0FNQAFvYv//v845BAAAAI5JREFUOMtkzlkSgzAMBFCHwZidwXAYwgzE/W+pAnIrlf6re5K6pZTSv9p7v5RS+lXWInXF584mREpEnE6UqXyRuhKpK5m6MpjKt5X5r6nMX5WppfKpZeqpfGqZeqqZeqpp6qlm6qlm6qnmMvVUM/VUM/VUc5l6qrXUv6cyf1WmXv8q81dt85f58L339g38BAsQ+L53TwAAAABJRU5ErkJggg==");
    background-size: 100px 100px;
    opacity: 0.025;
    animation: noise-bg 0.15s infinite steps(5);
    pointer-events: none;
}

@keyframes noise-bg {
    0%   { transform: translate(0, 0); }
    20%  { transform: translate(-6%, -4%); }
    40%  { transform: translate(8%, 6%); }
    60%  { transform: translate(-4%, 8%); }
    80%  { transform: translate(6%, -6%); }
    100% { transform: translate(-2%, 4%); }
}

/* Grid overlay */
.grid-bg::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image:
        linear-gradient(to right, rgba(0,243,255,0.035) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0,243,255,0.035) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

/* Scanlines */
.scanlines::before {
    content: "";
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,0.08) 2px,
        rgba(0,0,0,0.08) 4px
    );
    z-index: 9997;
    pointer-events: none;
    opacity: 0.5;
}

/* ===========================
   Custom Cursor (PC only)
=========================== */
@media (min-width: 1025px) {
    body { cursor: none; }
}

#cursor-outer {
    width: 32px;
    height: 32px;
    border: 1px solid rgba(0,243,255,0.5);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 99999;
    transition: transform 0.3s ease, width 0.3s, height 0.3s, border-color 0.2s;
    mix-blend-mode: screen;
}
#cursor-inner {
    width: 6px;
    height: 6px;
    background: var(--neon-cyan);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 99999;
    transition: transform 0.1s ease;
    box-shadow: 0 0 8px var(--neon-cyan);
    mix-blend-mode: screen;
}
@media (max-width: 1024px) {
    #cursor-outer, #cursor-inner { display: none; }
}

/* ===========================
   Typography
=========================== */
.tech-font  { font-family: 'Share Tech Mono', monospace; }
.orbit-font { font-family: 'Orbitron', monospace; }

/* ===========================
   Loading Screen
=========================== */
#loader {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 100000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    transition: opacity 1s cubic-bezier(0.4,0,0.2,1);
}
#loader-title {
    font-family: 'Orbitron', monospace;
    font-size: clamp(12px, 2vw, 18px);
    letter-spacing: 0.5em;
    color: var(--neon-cyan);
    animation: flicker 3s infinite;
}
.loader-bar-container {
    width: min(80vw, 320px);
    height: 2px;
    background: rgba(255,255,255,0.08);
    position: relative;
    overflow: hidden;
}
#loader-progress {
    position: absolute;
    top: 0; bottom: 0; left: 0;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
    width: 0%;
    transition: width 0.3s ease;
    box-shadow: 0 0 20px var(--neon-cyan);
}
#loader-status {
    font-family: 'Share Tech Mono', monospace;
    font-size: 10px;
    color: rgba(0,243,255,0.4);
    letter-spacing: 0.3em;
    text-transform: uppercase;
}
#loader-pct {
    font-family: 'Orbitron', monospace;
    font-size: clamp(48px, 10vw, 80px);
    color: rgba(255,255,255,0.04);
    position: absolute;
    letter-spacing: -0.05em;
    user-select: none;
}

/* ===========================
   Keyframe Animations
=========================== */
@keyframes flicker {
    0%,95%,100% { opacity: 1; }
    96% { opacity: 0.4; }
    97% { opacity: 1; }
    98% { opacity: 0.2; }
    99% { opacity: 1; }
}

@keyframes glitch-skew {
    0%   { transform: skew(0deg) translateX(0); }
    19%  { transform: skew(0deg) translateX(0); }
    20%  { transform: skew(2deg) translateX(-3px); text-shadow: 3px 0 var(--neon-magenta), -3px 0 var(--neon-cyan); }
    21%  { transform: skew(-4deg) translateX(3px); }
    22%  { transform: skew(0deg) translateX(0); }
    49%  { transform: skew(0deg) translateX(0); }
    50%  { transform: skew(1deg) translateX(-2px); }
    51%  { transform: skew(-2deg) translateX(2px); }
    52%  { transform: skew(0deg) translateX(0); }
    100% { transform: skew(0deg) translateX(0); }
}

@keyframes glitch-clip1 {
    0%,19%,23%,100% { opacity: 0; clip-path: none; }
    20% { opacity: 0.8; clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%); }
    21% { clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%); }
    22% { clip-path: polygon(0 40%, 100% 40%, 100% 50%, 0 50%); }
}

@keyframes glitch-clip2 {
    0%,19%,23%,100% { opacity: 0; clip-path: none; }
    20% { opacity: 0.8; clip-path: polygon(0 50%, 100% 50%, 100% 70%, 0 70%); }
    21% { clip-path: polygon(0 10%, 100% 10%, 100% 30%, 0 30%); }
    22% { clip-path: polygon(0 70%, 100% 70%, 100% 90%, 0 90%); }
}

@keyframes float {
    0%,100% { transform: translateY(0px); }
    50%      { transform: translateY(-12px); }
}

@keyframes scan-line {
    0%   { top: -5%; }
    100% { top: 105%; }
}

@keyframes type-cursor {
    0%,100% { opacity: 1; }
    50%     { opacity: 0; }
}

@keyframes particle-float {
    0%   { transform: translateY(0) translateX(0); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 0.5; }
    100% { transform: translateY(-100vh) translateX(var(--tx, 0)); opacity: 0; }
}

/* ===========================
   Glitch Text Effect
=========================== */
.glitch-text {
    position: relative;
    text-shadow: 2px 0 var(--neon-magenta), -2px 0 var(--neon-cyan);
    animation: glitch-skew 5s infinite linear;
}
.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    opacity: 0;
}
.glitch-text::before {
    animation: glitch-clip1 5s infinite;
    color: var(--neon-cyan);
    left: 2px;
}
.glitch-text::after {
    animation: glitch-clip2 5s infinite;
    color: var(--neon-magenta);
    left: -2px;
}

/* ===========================
   Reveal on Scroll
=========================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.16,1,0.3,1),
                transform 0.9s cubic-bezier(0.16,1,0.3,1);
}
.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }
.reveal.delay-4 { transition-delay: 0.4s; }
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Glass Panel
=========================== */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.06);
}
.glass-panel:hover {
    border-color: rgba(0,243,255,0.2);
}

/* ===========================
   Neon Button
=========================== */
.neon-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    border: 1px solid rgba(0,243,255,0.5);
    background: transparent;
    color: var(--neon-cyan);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
}
.neon-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(0,243,255,0.08), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}
.neon-btn:hover::before { transform: translateX(100%); }
.neon-btn:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0,243,255,0.3), inset 0 0 20px rgba(0,243,255,0.05);
    color: #fff;
}
.neon-btn-magenta {
    border-color: rgba(255,0,255,0.5);
    color: var(--neon-magenta);
}
.neon-btn-magenta:hover {
    border-color: var(--neon-magenta);
    box-shadow: 0 0 20px rgba(255,0,255,0.3), inset 0 0 20px rgba(255,0,255,0.05);
    color: #fff;
}

/* ===========================
   Header & Navigation
=========================== */
#site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,243,255,0.1);
    transition: all 0.4s ease;
}
#site-header.scrolled {
    height: 56px;
    background: rgba(0,0,0,0.95);
    border-bottom-color: rgba(0,243,255,0.2);
}

.nav-link {
    position: relative;
    font-family: 'Share Tech Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    transition: color 0.3s;
    padding-bottom: 4px;
}
.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 1px;
    background: var(--neon-cyan);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--neon-cyan);
}
.nav-link:hover,
.nav-link.active { color: var(--neon-cyan); }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

/* Mobile Menu */
#mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.97);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 36px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
    backdrop-filter: blur(20px);
}
#mobile-menu.open { transform: translateX(0); }

.mobile-nav-link {
    font-family: 'Orbitron', monospace;
    font-size: clamp(20px, 5vw, 28px);
    letter-spacing: 0.2em;
    color: white;
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
}
.mobile-nav-link:hover { color: var(--neon-cyan); }

/* ===========================
   Hero Section
=========================== */
.hero-particle {
    position: absolute;
    border-radius: 50%;
    animation: particle-float linear infinite;
    opacity: 0;
}

.hero-tag {
    display: inline-block;
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.3em;
    padding: 4px 12px;
    border: 1px solid rgba(0,243,255,0.3);
    color: rgba(0,243,255,0.7);
    text-transform: uppercase;
    animation: flicker 4s infinite;
}

.typing-text::after {
    content: "_";
    animation: type-cursor 0.8s infinite;
    color: var(--neon-cyan);
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: float 2s ease-in-out infinite;
}
.scroll-indicator span {
    font-family: 'Share Tech Mono', monospace;
    font-size: 8px;
    letter-spacing: 0.4em;
    color: rgba(0,243,255,0.4);
    text-transform: uppercase;
}
.scroll-indicator .arrow {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--neon-cyan), transparent);
}

/* ===========================
   Section Titles
=========================== */
.section-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.3);
    margin-bottom: 8px;
}
.section-title-cyan {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--neon-cyan);
    letter-spacing: -0.02em;
}
.section-title-magenta {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--neon-magenta);
    letter-spacing: -0.02em;
}
.section-divider {
    height: 1px;
    flex: 1;
    background: linear-gradient(to right, rgba(0,243,255,0.3), transparent);
}
.section-divider-left {
    background: linear-gradient(to left, rgba(255,0,255,0.3), transparent);
}

/* ===========================
   Skill Bars
=========================== */
.skill-bar-track {
    height: 2px;
    background: rgba(255,255,255,0.06);
    width: 100%;
    position: relative;
    overflow: visible;
}
.skill-bar-fill {
    height: 100%;
    width: 0%;
    transition: width 1.5s cubic-bezier(0.16,1,0.3,1);
    position: relative;
}
.skill-bar-fill::after {
    content: "";
    position: absolute;
    right: 0; top: -3px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: inherit;
}
.skill-bar-cyan .skill-bar-fill {
    background: linear-gradient(90deg, rgba(0,243,255,0.4), var(--neon-cyan));
    box-shadow: 0 0 10px var(--neon-cyan);
}
.skill-bar-cyan .skill-bar-fill::after  { box-shadow: 0 0 12px var(--neon-cyan); }
.skill-bar-magenta .skill-bar-fill {
    background: linear-gradient(90deg, rgba(255,0,255,0.4), var(--neon-magenta));
    box-shadow: 0 0 10px var(--neon-magenta);
}
.skill-bar-magenta .skill-bar-fill::after { box-shadow: 0 0 12px var(--neon-magenta); }
.skill-bar-green .skill-bar-fill {
    background: linear-gradient(90deg, rgba(0,255,136,0.4), var(--neon-green));
    box-shadow: 0 0 10px var(--neon-green);
}
.skill-bar-green .skill-bar-fill::after  { box-shadow: 0 0 12px var(--neon-green); }

/* ===========================
   Timeline
=========================== */
.timeline-line {
    position: absolute;
    left: 20px;
    top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom,
        transparent 0%,
        var(--neon-cyan) 20%,
        var(--neon-magenta) 50%,
        var(--neon-cyan) 80%,
        transparent 100%
    );
}
@media (min-width: 768px) {
    .timeline-line {
        left: 50%;
        transform: translateX(-50%);
    }
}
.timeline-dot {
    position: absolute;
    left: 11px;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--dark-bg);
    border: 2px solid currentColor;
    z-index: 10;
    transition: all 0.4s ease;
}
@media (min-width: 768px) {
    .timeline-dot {
        left: 50%;
        transform: translateX(-50%);
    }
    .timeline-dot:hover,
    .timeline-group:hover .timeline-dot {
        transform: translateX(-50%) scale(1.5);
        box-shadow: 0 0 20px currentColor;
    }
}
@media (max-width: 767px) {
    .timeline-dot { transform: none !important; }
    .timeline-dot:hover,
    .timeline-group:hover .timeline-dot {
        transform: scale(1.5) !important;
        box-shadow: 0 0 20px currentColor;
    }
}

/* ===========================
   Works Cards
=========================== */
.work-card {
    position: relative;
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.work-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0,243,255,0.15);
}
.work-card .card-img {
    filter: grayscale(0.6) contrast(1.1) brightness(0.75);
    transition: all 0.5s ease;
    width: 100%; height: 100%;
    object-fit: cover;
}
.work-card:hover .card-img {
    filter: grayscale(0) contrast(1) brightness(0.95);
    transform: scale(1.05);
}
.work-card .card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-end;
    padding: 20px;
}
.work-card:hover .card-overlay { opacity: 1; }

.work-card .scan-effect {
    position: absolute;
    left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    top: -5%;
    opacity: 0;
    transition: opacity 0.3s;
}
.work-card:hover .scan-effect {
    opacity: 1;
    animation: scan-line 1.5s linear infinite;
}

/* ===========================
   img-cyber filter
=========================== */
.img-cyber {
    filter: grayscale(0.4) contrast(1.15) brightness(0.8);
    transition: all 0.5s ease;
}
.group:hover .img-cyber {
    filter: grayscale(0) contrast(1) brightness(1);
}

/* ===========================
   Service Cards
=========================== */
.service-card {
    position: relative;
    padding: 32px;
    border: 1px solid rgba(255,255,255,0.06);
    background: rgba(8,8,20,0.9);
    transition: all 0.4s ease;
    overflow: hidden;
}
.service-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 3px; height: 0%;
    background: var(--neon-cyan);
    transition: height 0.5s ease;
    box-shadow: 0 0 10px var(--neon-cyan);
}
.service-card:hover::before { height: 100%; }
.service-card:hover {
    border-color: rgba(0,243,255,0.2);
    background: rgba(0,20,40,0.9);
    transform: translateX(4px);
}
.service-card.featured {
    border-color: rgba(0,243,255,0.3);
    background: rgba(0,20,40,0.8);
}
.service-card.featured::before { height: 100%; }

/* ===========================
   Stats Counter
=========================== */
.stat-number {
    font-family: 'Orbitron', monospace;
    font-size: clamp(36px, 6vw, 60px);
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   Contact Form
=========================== */
.form-field {
    position: relative;
    margin-bottom: 24px;
}
.form-field label {
    display: block;
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: rgba(0,243,255,0.6);
    margin-bottom: 8px;
}
.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.08);
    color: #e0e0e0;
    padding: 12px 16px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
    resize: none;
    appearance: none;
    -webkit-appearance: none;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    border-color: rgba(0,243,255,0.5);
    box-shadow: 0 0 0 1px rgba(0,243,255,0.2),
                0 0 20px rgba(0,243,255,0.05);
}
.form-field .field-line {
    position: absolute;
    bottom: 0; left: 0;
    width: 0%; height: 1px;
    background: var(--neon-cyan);
    box-shadow: 0 0 8px var(--neon-cyan);
    transition: width 0.4s ease;
}
.form-field input:focus  ~ .field-line,
.form-field textarea:focus ~ .field-line { width: 100%; }

/* ===========================
   Footer Links
=========================== */
.footer-link {
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.3em;
    color: rgba(255,255,255,0.25);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.3s;
}
.footer-link:hover { color: var(--neon-cyan); }

/* ===========================
   Utility Classes
=========================== */
.gradient-text {
    background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-magenta) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.corner-decoration {
    position: absolute;
    width: 16px; height: 16px;
}
.corner-decoration.tl { top: 0;    left: 0;  border-top:    2px solid var(--neon-cyan); border-left:  2px solid var(--neon-cyan); }
.corner-decoration.tr { top: 0;    right: 0; border-top:    2px solid var(--neon-cyan); border-right: 2px solid var(--neon-cyan); }
.corner-decoration.bl { bottom: 0; left: 0;  border-bottom: 2px solid var(--neon-cyan); border-left:  2px solid var(--neon-cyan); }
.corner-decoration.br { bottom: 0; right: 0; border-bottom: 2px solid var(--neon-cyan); border-right: 2px solid var(--neon-cyan); }

.tag-pill {
    display: inline-block;
    padding: 3px 10px;
    border: 1px solid rgba(0,243,255,0.25);
    border-radius: 2px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    color: rgba(0,243,255,0.7);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.filter-btn {
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    padding: 6px 16px;
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent;
}
.filter-btn:hover,
.filter-btn.active {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0,243,255,0.2);
}

/* Toast Notification */
#toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 99998;
    background: rgba(0,20,30,0.95);
    border: 1px solid var(--neon-cyan);
    box-shadow: 0 0 30px rgba(0,243,255,0.3);
    padding: 16px 24px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--neon-cyan);
    text-transform: uppercase;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
    backdrop-filter: blur(10px);
}
#toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 32px;
    left: 32px;
    z-index: 1000;
    width: 44px; height: 44px;
    border: 1px solid rgba(0,243,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(10px);
}
#back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}
#back-to-top:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0,243,255,0.3);
}

/* Horizontal Rule with Text */
.hr-text {
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.4em;
    color: rgba(255,255,255,0.2);
    text-transform: uppercase;
}
.hr-text::before,
.hr-text::after {
    content: "";
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.06);
}