/* ============ BASE ============ */
.biro-aakk-page { color: var(--text-body); padding-bottom: 4rem; }
.hero-biro { position: relative; padding: 8rem 0 5rem; background: transparent; overflow: hidden; }
.hero-biro::before { content: ''; position: absolute; top: -30%; left: -10%; width: 600px; height: 600px; background: var(--glow-yellow); border-radius: 50%; animation: pulse 4s ease-in-out infinite; filter: blur(50px); }
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 0.5; } 50% { transform: scale(1.1); opacity: 0.3; } }
.eyebrow { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--primary-yellow); font-size: 0.95rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 1.5rem; }
.eyebrow-dot { width: 8px; height: 8px; background: var(--primary-yellow); border-radius: 50%; animation: blink 2s ease-in-out infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero-title { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; line-height: 1.2; margin-bottom: 1.5rem; color: var(--text-heading); transition: color var(--trans); }
.hero-subtitle { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--text-muted); max-width: 700px; line-height: 1.8; }

/* ============ CONTENT ============ */
.content-section { padding: 5rem 0; }
.section-label { font-size: 0.9rem; color: var(--primary-yellow); font-weight: 700; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.content-card { background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: 24px; padding: 3rem; margin-bottom: 3rem; position: relative; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.05); transition: all 0.4s ease; }
.content-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary-yellow) 0%, var(--yellow-soft) 100%); }
.content-card:hover { border-color: var(--primary-yellow); box-shadow: 0 30px 80px var(--glow-yellow); }
.content-title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; color: var(--text-heading); margin-bottom: 1.5rem; }
.content-text { font-size: 1.1rem; line-height: 1.8; color: var(--text-body); margin-bottom: 1.5rem; }

.function-list { list-style: none; padding: 0; margin: 2rem 0; }
.function-list li { background: var(--glow-yellow); border-left: 3px solid var(--primary-yellow); padding: 1.25rem; margin-bottom: 1rem; border-radius: 8px; font-size: 1.05rem; line-height: 1.7; color: var(--text-body); transition: all 0.3s ease; }
.function-list li:hover { transform: translateX(5px); }
.structure-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
.structure-item { background: var(--bg-card-2); border: 1px solid var(--border-soft); border-radius: 16px; padding: 2rem; text-align: center; transition: all 0.4s ease; }
.structure-item:hover { transform: translateY(-5px); border-color: var(--primary-yellow); box-shadow: 0 15px 40px var(--glow-yellow); }
.structure-number { width: 50px; height: 50px; background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--yellow-soft) 100%); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 800; color: #000; margin: 0 auto 1rem; box-shadow: 0 5px 15px rgba(241,196,15,0.2); }
.structure-text { font-size: 1.05rem; color: var(--text-body); line-height: 1.6; }

.image-section { margin-top: 3rem; }
.image-wrapper { position: relative; border-radius: 16px; overflow: hidden; cursor: pointer; transition: transform 0.4s ease; }
.image-wrapper:hover { transform: scale(1.02); }
.image-wrapper img { width: 100%; height: auto; display: block; border-radius: 16px; box-shadow: 0 15px 50px rgba(0,0,0,0.1); }
.zoom-icon { width: 60px; height: 60px; background: var(--primary-yellow); color: #000; border-radius: 50%; display: flex; align-items: center; justify-content: center; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); opacity: 0; transition: opacity 0.4s ease; }
.image-wrapper:hover .zoom-icon { opacity: 1; }
.image-hint { display: flex; align-items: center; gap: 0.75rem; margin-top: 1.5rem; padding: 1rem; background: var(--glow-yellow); border-left: 3px solid var(--primary-yellow); border-radius: 8px; }
.image-hint p { margin: 0; color: var(--text-body); font-size: 0.95rem; }

.scroll-reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease; }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }
@media (max-width: 768px) { .hero-biro { padding: 5rem 0 3rem; } .content-card { padding: 2rem 1.5rem; } .structure-list { grid-template-columns: 1fr; } }