/* ============================================
   SIEMENS PARTNER PROGRAM PRESENTATION
   Premium Dark Theme with Glassmorphism
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --siemens-teal: #009999;
    --siemens-teal-light: #00cccc;
    --siemens-dark: #0a1628;
    --siemens-darker: #060e1a;
    --siemens-navy: #0f2137;
    --glass-bg: rgba(15, 33, 55, 0.6);
    --glass-border: rgba(0, 153, 153, 0.2);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.45);
    --auth-color: #5ac8fa;
    --silver-color: #c0c0c0;
    --gold-color: #ffd700;
    --plat-color: #e5e4e2;
    --accent-gradient: linear-gradient(135deg, #009999, #00cccc);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { font-size: 22px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--siemens-darker);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    -webkit-font-smoothing: antialiased;
}

/* --- Progress Bar --- */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--accent-gradient);
    z-index: 1000;
    transition: width 0.4s ease;
    box-shadow: 0 0 12px rgba(0, 153, 153, 0.5);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 100;
    background: rgba(6, 14, 26, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 5px;
    color: var(--siemens-teal-light);
}

.nav-controls { display: flex; align-items: center; gap: 12px; }

.slide-counter {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-right: 8px;
    font-variant-numeric: tabular-nums;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn:hover {
    background: rgba(0, 153, 153, 0.2);
    border-color: var(--siemens-teal);
}

/* --- Slides Container --- */
.slides-container {
    width: 100vw;
    height: 100vh;
    position: relative;
}

.slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
    padding: 80px 60px 40px;
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

/* --- Slide Backgrounds --- */
.slide-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(0, 153, 153, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(0, 60, 100, 0.1) 0%, transparent 50%),
                var(--siemens-darker);
    z-index: 0;
}

.cover-bg {
    background: radial-gradient(ellipse at 30% 40%, rgba(0, 153, 153, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(0, 80, 130, 0.12) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(0, 153, 153, 0.06) 0%, transparent 40%),
                var(--siemens-darker);
}

/* --- Cover Page --- */
.cover-content {
    position: relative; z-index: 1;
    text-align: center;
    max-width: 1100px;
}

.cover-badge {
    display: inline-block;
    padding: 8px 24px;
    border: 1px solid var(--siemens-teal);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--siemens-teal-light);
    margin-bottom: 32px;
}

.cover-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cover-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    font-weight: 400;
}

.cover-levels {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.level-chip {
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.level-chip.auth { background: rgba(90, 200, 250, 0.15); border: 1px solid rgba(90, 200, 250, 0.4); color: var(--auth-color); }
.level-chip.silver { background: rgba(192, 192, 192, 0.12); border: 1px solid rgba(192, 192, 192, 0.35); color: var(--silver-color); }
.level-chip.gold { background: rgba(255, 215, 0, 0.12); border: 1px solid rgba(255, 215, 0, 0.35); color: var(--gold-color); }
.level-chip.platinum { background: rgba(229, 228, 226, 0.12); border: 1px solid rgba(229, 228, 226, 0.35); color: var(--plat-color); }

.btn-primary {
    display: inline-block;
    padding: 14px 36px;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    letter-spacing: 0.5px;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0, 153, 153, 0.35); }

/* Particles */
.cover-particles {
    position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none;
}

/* --- Slide Content --- */
.slide-content {
    position: relative; z-index: 1;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
}

.chapter-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 50px;
    background: rgba(0, 153, 153, 0.15);
    border: 1px solid rgba(0, 153, 153, 0.3);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--siemens-teal-light);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.slide-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.slide-title.center { text-align: center; }

.slide-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 560px;
}

/* --- Two Column Layout --- */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.col-left, .col-right { min-width: 0; }

/* --- Glass Cards --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
}

.glass-card.large { padding: 36px; }
.glass-card.mt { margin-top: 20px; }

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--siemens-teal-light);
}

.small-text { font-size: 0.85rem; line-height: 1.6; color: var(--text-secondary); }

/* --- Key Points --- */
.key-points { display: flex; flex-direction: column; gap: 16px; }

.key-point {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px;
    background: rgba(15, 33, 55, 0.5);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.kp-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.kp-text { font-size: 0.85rem; line-height: 1.5; color: var(--text-secondary); }
.kp-text strong { color: var(--text-primary); display: block; margin-bottom: 2px; }

/* --- Stats --- */
.stat-highlight { text-align: center; margin-bottom: 28px; }
.stat-number { font-size: 4rem; font-weight: 900; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 0.9rem; color: var(--text-secondary); margin-top: 4px; }

/* --- Level Progression --- */
.level-progression { display: flex; flex-direction: column; gap: 12px; }
.prog-item { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-secondary); }
.prog-bar { height: 8px; border-radius: 4px; flex: 1; }
.auth-bar { background: linear-gradient(90deg, var(--auth-color), transparent 50%); }
.silver-bar { background: linear-gradient(90deg, var(--silver-color), transparent 65%); }
.gold-bar { background: linear-gradient(90deg, var(--gold-color), transparent 80%); }
.plat-bar { background: linear-gradient(90deg, var(--plat-color), transparent 100%); }

/* --- Two Channel Grid --- */
.two-channel-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: stretch;
    margin-top: 24px;
}

.channel-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px;
}

.channel-card.dist { border-top: 3px solid var(--siemens-teal); }
.channel-card.sol { border-top: 3px solid var(--gold-color); }
.channel-icon { font-size: 2rem; margin-bottom: 12px; }
.channel-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.channel-card p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 16px; }
.channel-card ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.channel-card li { font-size: 0.8rem; color: var(--text-secondary); padding-left: 16px; position: relative; }
.channel-card li::before { content: '›'; position: absolute; left: 0; color: var(--siemens-teal-light); font-weight: 700; }

.channel-divider { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; }
.divider-line { width: 1px; flex: 1; background: linear-gradient(180deg, transparent, var(--glass-border), transparent); }
.divider-badge {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; font-weight: 700; color: var(--text-muted);
}

.info-banner {
    margin-top: 24px;
    padding: 16px 24px;
    background: rgba(0, 153, 153, 0.08);
    border: 1px solid rgba(0, 153, 153, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
}

/* --- Requirements Table --- */
.requirements-table {
    margin-top: 24px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.req-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    background: rgba(0, 153, 153, 0.12);
}

.req-header .req-col {
    padding: 14px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.req-header .label-col { text-align: left; }
.req-header .auth-col { color: var(--auth-color); }
.req-header .silver-col { color: var(--silver-color); }
.req-header .gold-col { color: var(--gold-color); }
.req-header .plat-col { color: var(--plat-color); }

.req-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.req-row:nth-child(even) { background: rgba(255, 255, 255, 0.02); }

.req-col {
    padding: 12px 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.req-col.label-col {
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    justify-content: flex-start;
}

.req-col.highlight { color: var(--siemens-teal-light); font-weight: 600; }

.full-span {
    grid-column: span 4;
    text-align: center;
    font-style: italic;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* --- Benefits Grid --- */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 28px;
}

.benefit-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 24px 18px;
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover { border-color: var(--siemens-teal); transform: translateY(-4px); }
.benefit-card.gold-highlight { border-color: rgba(255, 215, 0, 0.3); }
.benefit-icon { font-size: 1.8rem; margin-bottom: 10px; }
.benefit-card h4 { font-size: 0.82rem; margin-bottom: 10px; line-height: 1.3; }
.benefit-levels { margin-top: 8px; }
.l-check { font-size: 0.72rem; padding: 4px 10px; border-radius: 50px; background: rgba(0, 153, 153, 0.15); color: var(--siemens-teal-light); }
.l-partial { font-size: 0.72rem; padding: 4px 10px; border-radius: 50px; background: rgba(192, 192, 192, 0.12); color: var(--silver-color); }
.l-gold { font-size: 0.72rem; padding: 4px 10px; border-radius: 50px; background: rgba(255, 215, 0, 0.12); color: var(--gold-color); }

/* --- Certification Steps --- */
.cert-steps { display: flex; flex-direction: column; gap: 16px; }

.cert-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-num {
    width: 36px; height: 36px; min-width: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; font-weight: 700; color: #fff;
}

.step-content strong { font-size: 0.9rem; display: block; margin-bottom: 2px; }
.step-content p { font-size: 0.8rem; color: var(--text-secondary); }

/* --- Module List --- */
.module-list { display: flex; flex-direction: column; gap: 8px; }

.module-item {
    padding: 10px 14px;
    background: rgba(0, 153, 153, 0.06);
    border: 1px solid rgba(0, 153, 153, 0.12);
    border-radius: 6px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.module-item:hover { border-color: var(--siemens-teal); color: var(--text-primary); }

/* --- Collaboration Cards --- */
.collab-cards { display: flex; flex-direction: column; gap: 16px; }

.collab-card {
    padding: 20px;
    background: rgba(15, 33, 55, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm);
}

.collab-card h4 { font-size: 0.9rem; margin-bottom: 8px; }
.collab-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.5; }

/* --- Collab Flow --- */
.collab-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.flow-item { text-align: center; }
.flow-icon { font-size: 1.6rem; margin-bottom: 4px; }
.flow-item span { font-size: 0.75rem; color: var(--text-secondary); }
.flow-arrow { color: var(--siemens-teal); font-size: 1.2rem; font-weight: 700; }

/* --- Deal Section --- */
.deal-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
    margin-top: 28px;
    align-items: start;
}

.deal-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px;
}

.deal-card.main-card { border-left: 3px solid var(--siemens-teal); }
.deal-card h3 { font-size: 1.1rem; margin-bottom: 16px; }
.deal-card p { font-size: 0.88rem; line-height: 1.7; color: var(--text-secondary); }
.deal-motto {
    margin-top: 20px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--siemens-teal-light);
}

.deal-benefits { display: flex; flex-direction: column; gap: 14px; }
.deal-benefit {
    display: flex; gap: 12px; align-items: center;
    padding: 16px;
    background: rgba(15, 33, 55, 0.5);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem; color: var(--text-secondary);
}
.db-icon { font-size: 1rem; }

/* --- Marketing Section --- */
.marketing-list { display: flex; flex-direction: column; gap: 10px; }
.mkt-item { font-size: 0.85rem; color: var(--text-secondary); display: flex; align-items: center; gap: 10px; }
.mkt-bullet { color: var(--siemens-teal-light); font-size: 0.5rem; }

/* --- Emblem Showcase --- */
.emblem-showcase { display: flex; flex-direction: column; gap: 16px; }

.emblem-card {
    padding: 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 16px;
}

.emblem-type { font-size: 0.7rem; color: var(--siemens-teal-light); font-weight: 600; letter-spacing: 1px; min-width: 120px; }
.emblem-brand { font-size: 1.2rem; font-weight: 800; letter-spacing: 3px; flex: 1; }
.emblem-level {
    font-size: 0.65rem;
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 700;
    letter-spacing: 2px;
}
.emblem-level.cert { background: var(--siemens-teal); color: #fff; }

/* --- Agreement Section --- */
.agreement-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 28px;
}

.agree-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
}

.agree-icon { font-size: 2rem; margin-bottom: 14px; }
.agree-card h4 { font-size: 0.95rem; margin-bottom: 10px; }
.agree-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }

/* --- Contract Flow --- */
.contract-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 32px;
    padding: 24px;
    background: rgba(15, 33, 55, 0.4);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.cf-item { text-align: center; }
.cf-icon { font-size: 1.8rem; margin-bottom: 6px; }
.cf-item span { font-size: 0.8rem; color: var(--text-secondary); }
.cf-item small { color: var(--text-muted); }
.cf-arrow { color: var(--siemens-teal); font-size: 1.4rem; font-weight: 700; }

.cf-partners {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 24px;
    background: rgba(0, 153, 153, 0.08);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 153, 153, 0.2);
}

.cf-partners span { font-size: 0.78rem; color: var(--text-secondary); }

/* --- Final Slide --- */
.final-slide { max-width: 1300px; }
.final-badge {
    display: inline-block;
    padding: 8px 24px;
    border: 1px solid var(--siemens-teal);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--siemens-teal-light);
    margin-bottom: 24px;
}

.final-accent {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 900;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 16px 0 36px;
}

.next-steps-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.step-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 20px 14px;
    text-align: center;
    transition: var(--transition);
}

.step-card:hover { border-color: var(--siemens-teal); transform: translateY(-4px); }

.step-number {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; font-weight: 700; color: #fff;
    margin: 0 auto 10px;
}

.step-card h4 { font-size: 0.85rem; margin-bottom: 6px; }
.step-card p { font-size: 0.75rem; color: var(--text-secondary); line-height: 1.4; }

.final-cta { margin-bottom: 20px; }
.copyright { font-size: 0.7rem; color: var(--text-muted); }

/* --- Presenter Name --- */
.presenter-name {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 28px;
}

.presenter-name.final {
    margin-top: 20px;
    margin-bottom: 8px;
}

.presenter-line {
    display: block;
    height: 1px;
    width: 0;
    background: linear-gradient(90deg, transparent, rgba(0, 153, 153, 0.5), transparent);
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: 1s;
}

.slide.active .presenter-line {
    width: 60px;
}

.presenter-text {
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: transparent;
    background: linear-gradient(135deg, rgba(255,255,255,0.35), rgba(0, 204, 204, 0.55), rgba(255,255,255,0.35));
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    animation: none;
}

.slide.active .presenter-text {
    animation: presenterShimmer 3s ease 1.2s forwards;
}

@keyframes presenterShimmer {
    0% {
        background-position: 200% center;
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    100% {
        background-position: -200% center;
        opacity: 1;
        color: transparent;
        background: linear-gradient(135deg, rgba(255,255,255,0.4), rgba(0, 204, 204, 0.5), rgba(255,255,255,0.4));
        background-size: 200% 100%;
        -webkit-background-clip: text;
        background-clip: text;
    }
}

/* --- Module Grid (Distribution Portfolio) --- */
.module-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 20px;
}

.mod-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
    transition: var(--transition);
}

.mod-card:hover { border-color: var(--siemens-teal); transform: translateY(-3px); }
.mod-card.portfolio-mod { border-top: 2px solid var(--siemens-teal); }
.mod-icon { font-size: 1.6rem; margin-bottom: 8px; }
.mod-card h4 { font-size: 0.82rem; margin-bottom: 6px; line-height: 1.3; }
.mod-card p { font-size: 0.72rem; color: var(--text-muted); line-height: 1.4; }

/* --- Expert & Portfolio Modules (Solution Partner) --- */
.two-module-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.module-section {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section-header.expert-header { border-bottom-color: rgba(255, 165, 0, 0.3); }
.section-header.portfolio-header { border-bottom-color: rgba(0, 153, 153, 0.3); }
.section-header.service-header { border-bottom-color: rgba(100, 149, 237, 0.3); }

.section-icon { font-size: 1.4rem; }
.section-header h3 { font-size: 1rem; font-weight: 600; }
.section-header h3 small { font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }

.expert-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    gap: 20px;
}

.expert-category h5 {
    font-size: 0.75rem;
    color: var(--siemens-teal-light);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.68rem;
    background: rgba(0, 153, 153, 0.08);
    border: 1px solid rgba(0, 153, 153, 0.15);
    color: var(--text-secondary);
    transition: var(--transition);
}

.tag:hover { border-color: var(--siemens-teal); color: var(--text-primary); }
.tag.xcelerator { border-left: 2px solid #ff8c00; }
.tag.vertical { background: rgba(100, 149, 237, 0.08); border: 1px solid rgba(100, 149, 237, 0.2); }

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.p-mod-card {
    padding: 10px 12px;
    background: rgba(0, 153, 153, 0.06);
    border: 1px solid rgba(0, 153, 153, 0.12);
    border-radius: 6px;
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-align: center;
    transition: var(--transition);
}

.p-mod-card:hover { border-color: var(--siemens-teal); color: var(--text-primary); }

.service-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- Value Packages --- */
.value-package-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.vp-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px 18px;
    transition: var(--transition);
}

.vp-card:hover { transform: translateY(-4px); }

.vp-level {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.vp-authorized .vp-level { background: rgba(90, 200, 250, 0.15); color: var(--auth-color); }
.vp-authorized { border-top: 3px solid var(--auth-color); }

.vp-silver .vp-level { background: rgba(192, 192, 192, 0.12); color: var(--silver-color); }
.vp-silver { border-top: 3px solid var(--silver-color); }

.vp-gold .vp-level { background: rgba(255, 215, 0, 0.12); color: var(--gold-color); }
.vp-gold { border-top: 3px solid var(--gold-color); }

.vp-platinum .vp-level { background: rgba(229, 228, 226, 0.12); color: var(--plat-color); }
.vp-platinum { border-top: 3px solid var(--plat-color); }

.vp-card h4 {
    font-size: 0.88rem;
    margin-bottom: 14px;
    font-weight: 600;
}

.vp-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.vp-card li {
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding-left: 14px;
    position: relative;
    line-height: 1.4;
}

.vp-card li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--siemens-teal-light);
    font-weight: 700;
}

/* --- Text Utility --- */
.slide-text.center { text-align: center; }

/* --- Keyboard Hint --- */
.keyboard-hint {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 20px;
    background: rgba(6, 14, 26, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.72rem;
    color: var(--text-muted);
    z-index: 50;
    transition: opacity 0.5s ease;
}

.keyboard-hint.hidden { opacity: 0; pointer-events: none; }

/* --- Animations --- */
.animate-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide.active .animate-in {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .two-col { grid-template-columns: 1fr; gap: 28px; }
    .two-channel-grid { grid-template-columns: 1fr; }
    .channel-divider { flex-direction: row; padding: 16px 0; }
    .divider-line { height: 1px; width: 100%; }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .agreement-grid { grid-template-columns: 1fr; }
    .next-steps-grid { grid-template-columns: repeat(3, 1fr); }
    .deal-grid { grid-template-columns: 1fr; }
    .slide { padding: 72px 24px 24px; }
    .module-grid { grid-template-columns: repeat(2, 1fr); }
    .expert-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
    .value-package-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .benefits-grid { grid-template-columns: 1fr; }
    .next-steps-grid { grid-template-columns: repeat(2, 1fr); }
    .req-header, .req-row { font-size: 0.65rem; }
    .nav { padding: 0 16px; }
    .nav-logo { font-size: 0.85rem; letter-spacing: 2px; }
    .slide-counter { font-size: 0.7rem; }
    .module-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .value-package-grid { grid-template-columns: 1fr; }
    .slide { padding: 64px 16px 16px; }
    .cover-title { font-size: clamp(1.2rem, 5vw, 1.8rem); }
    .cover-subtitle { font-size: 0.85rem; }
    .level-chip { font-size: 0.6rem; padding: 6px 12px; }
    .channel-card { padding: 20px; }
    .channel-card h3 { font-size: 1rem; }
    .stat-number { font-size: 2.5rem; }
    .collab-flow { gap: 8px; }
    .flow-icon { font-size: 1.2rem; }
    .emblem-card { flex-wrap: wrap; gap: 8px; }
    .emblem-type { min-width: auto; }
    .emblem-brand { font-size: 1rem; }
    .contract-flow { flex-wrap: wrap; gap: 12px; padding: 16px; }
    .keyboard-hint { display: none; }
}

@media (max-width: 480px) {
    .slide { padding: 56px 12px 12px; }
    .slide-title { font-size: 1.2rem; }
    .slide-text { font-size: 0.85rem; }
    .chapter-badge { font-size: 0.6rem; padding: 4px 10px; }
    .info-banner { font-size: 0.75rem; padding: 12px 16px; }
    .requirements-table { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .req-header, .req-row { min-width: 600px; }
    .key-point { padding: 12px; gap: 10px; }
    .kp-icon { font-size: 1.1rem; }
    .kp-text { font-size: 0.78rem; }
    .deal-card { padding: 20px; }
    .deal-card h3 { font-size: 0.95rem; }
    .deal-motto { font-size: 0.9rem; }
    .glass-card { padding: 18px; }
    .glass-card.large { padding: 22px; }
    .cert-step { gap: 10px; }
    .step-num { width: 30px; height: 30px; min-width: 30px; font-size: 0.75rem; }
    .mod-card { padding: 14px 10px; }
    .mod-icon { font-size: 1.2rem; }
    .mod-card h4 { font-size: 0.75rem; }
    .mod-card p { font-size: 0.65rem; }
    .tag { font-size: 0.62rem; padding: 4px 7px; }
    .p-mod-card { font-size: 0.65rem; padding: 8px 6px; }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
    .next-steps-grid { grid-template-columns: 1fr; }
    .cover-levels { gap: 6px; }
    .btn-primary { font-size: 0.85rem; padding: 14px 28px; }
    .nav { height: 48px; }
    .nav-btn { width: 30px; height: 30px; font-size: 1rem; }
}

/* --- Fullscreen adjustments --- */
body:fullscreen .nav { background: rgba(6, 14, 26, 0.95); }
body:-webkit-full-screen .nav { background: rgba(6, 14, 26, 0.95); }

/* --- Print Styles --- */
@media print {
    .nav, .progress-bar, .keyboard-hint { display: none; }
    .slide { position: relative; opacity: 1; visibility: visible; page-break-after: always; height: auto; min-height: 100vh; }
    .slides-container { height: auto; overflow: visible; }
    body { overflow: visible; }
}