/* Explain: App-specific component classes for UI elements. - */
/* Glassmorphism panel */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

/* Interface-inspired grid backdrop */
.tech-grid-bg {
    background-image:
        linear-gradient(rgba(0, 102, 255, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 255, 0.06) 1px, transparent 1px);
    background-size: 44px 44px;
}

/* HUD corner frame */
.hud-frame {
    position: relative;
}
.hud-frame::before,
.hud-frame::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-color: var(--primary-color);
    pointer-events: none;
}
.hud-frame::before {
    top: -1px;
    left: -1px;
    border-top: 2px solid var(--primary-color);
    border-left: 2px solid var(--primary-color);
}
.hud-frame::after {
    bottom: -1px;
    right: -1px;
    border-bottom: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
}

/* Glowing primary button */
.btn-glow {
    background: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 0 22px var(--glow-blue), 0 0 46px rgba(0, 102, 255, 0.15);
    transition: all 0.3s ease;
}
.btn-glow:hover {
    background: var(--primary-hover);
    box-shadow: 0 0 32px var(--glow-blue), 0 0 70px rgba(0, 102, 255, 0.25);
    transform: translateY(-2px);
}

/* Section eyebrow label */
.eyebrow {
    font-family: var(--font-heading);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    font-size: 0.72rem;
    color: var(--primary-color);
}
.eyebrow::before {
    content: '// ';
    color: var(--secondary-color);
}

/* Speaker card */
.speaker-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.speaker-card:hover {
    border-color: rgba(0, 102, 255, 0.4);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08), 0 0 24px rgba(0, 102, 255, 0.12);
}

/* Ticket card */
.ticket-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.ticket-card:hover {
    border-color: rgba(0, 102, 255, 0.45);
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.05);
}
.ticket-featured {
    border-color: rgba(0, 102, 255, 0.5);
    box-shadow: 0 0 40px rgba(0, 102, 255, 0.12);
}

/* Timeline */
.timeline-rail {
    border-left: 1px solid var(--border-color);
}
.timeline-dot {
    box-shadow: 0 0 10px var(--glow-blue);
}

/* Dark form inputs */
.tech-input {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.tech-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}
.tech-input::placeholder {
    color: var(--secondary-color);
}

/* Nav link */
.nav-link {
    position: relative;
    color: var(--text-muted);
    transition: color 0.25s ease;
}
.nav-link:hover,
.nav-link.active {
    color: var(--text-color);
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.25s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}