/* ==========================================================================
   STRUCTURAL LAYOUT (Nav, Hero, Sections)
   ========================================================================== */
.header-nav {
    position: fixed; top: 0; width: 100%; padding: 25px 5vw; 
    display: flex; justify-content: space-between; align-items: center;
    z-index: 9000; transition: var(--transition);
}
.header-nav.is-scrolled { 
    padding: 15px 5vw; background: rgba(250, 249, 246, 0.9); 
    backdrop-filter: blur(10px); box-shadow: 0 2px 20px rgba(0,0,0,0.05); 
}
.logo-text { font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; color: var(--text-dark); text-decoration: none; }
.logo-text span { color: var(--accent-orange); }
.menu-items { display: flex; gap: 35px; align-items: center; }
.menu-items a { color: var(--text-body); text-decoration: none; font-weight: 600; transition: var(--transition); }
.menu-items a:hover { color: var(--accent-blue); }

.hero { 
    padding: 160px 5vw 100px; display: grid; grid-template-columns: 1fr 1fr; 
    gap: 60px; align-items: center; max-width: 1400px; margin: 0 auto; min-height: 90vh; 
}
.hero-text h1 { font-size: clamp(2.5rem, 4.5vw, 4.2rem); margin-bottom: 20px; }
.type-container { display: inline-block; min-width: 320px; text-align: left; vertical-align: bottom; color: var(--accent-blue); position: relative; }
.type-container::after { 
    content: ''; display: inline-block; position: relative; top: 4px; margin-left: 5px;
    height: 0.9em; width: 3px; background-color: var(--accent-orange); animation: blink 0.8s infinite; 
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.hero-text p { font-size: 1.15rem; margin-bottom: 30px; max-width: 600px; }
.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-img { 
    width: 100%; max-width: 420px; aspect-ratio: 4/5; object-fit: cover; 
    border-radius: var(--radius-box); box-shadow: var(--shadow-soft); 
    transform: rotate(2deg); transition: var(--transition); 
}
.hero-visual:hover .hero-img { transform: rotate(0deg) translateY(-10px); box-shadow: var(--shadow-hover); }

.section-whoami { padding: 100px 5vw; background: var(--bg-dark); color: white; position: relative; z-index: 10; }
.section-whoami::before, .section-whoami::after { 
    content: ''; position: absolute; left: 0; width: 100%; height: 80px; 
    background: var(--bg-dark); transform: skewY(-1.5deg); z-index: -1; 
}
.section-whoami::before { top: -40px; } .section-whoami::after { bottom: -40px; }

.section-impact { padding: 120px 5vw; max-width: 1000px; margin: 0 auto; text-align: center; }
.section-exp { padding: 80px 5vw 120px; background: white; }
.grid-exp { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; max-width: 1200px; margin: 0 auto 30px; }

.section-contact { padding: 120px 5vw; background: var(--bg-dark); text-align: center; color: white; }
.footer { padding: 40px 5vw; background: #0b1120; text-align: center; }
.footer p { font-family: var(--font-body); font-size: 0.95rem; color: #94a3b8; }