/* ============================================
   DWS IQ 6 - ULTRA PREMIUM DESIGN SYSTEM
   Inspired by: SAP, ABB Robotics, AspenTech
   Version: 1.0
   ============================================ */

/* === DESIGN TOKENS === */
:root {
    /* Colors - Premium Palette */
    --color-primary: #0f172a;
    --color-primary-light: #1e293b;
    --color-accent: #3b82f6;
    --color-accent-dark: #2563eb;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-gold: #ffd700;
    
    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-gray-900);
    background: var(--color-white);
}

/* === NAVIGATION === */
.nav-ultra {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-logo {
    height: 40px;
    width: auto;
}

.nav-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-gray-900);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    padding: var(--space-2) var(--space-5);
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.nav-cta:hover {
    background: var(--color-accent-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.nav-mobile-toggle {
    display: none;
}

/* === HERO SECTION === */
.hero-ultra {
    position: relative;
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: var(--space-24);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        var(--color-primary) 0%, 
        var(--color-primary-light) 50%, 
        var(--color-primary) 100%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-content {
    color: var(--color-white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 215, 0, 0.15);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gold);
    margin-bottom: var(--space-6);
    animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 50%;
    animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
}

.hero-title-accent {
    background: linear-gradient(135deg, var(--color-gold) 0%, #ffed4e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-300);
    margin-bottom: var(--space-8);
    max-width: 600px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.stat-card {
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(8px);
    transition: all var(--transition-base);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.stat-value {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    display: block;
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border-radius: var(--radius-full);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
    transition: all var(--transition-base);
}

.btn-primary:hover {
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-primary svg {
    transition: transform var(--transition-fast);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: var(--space-4) var(--space-8);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.hero-trust {
    padding-top: var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.trust-label {
    font-size: 0.875rem;
    color: var(--color-gray-400);
    margin-bottom: var(--space-3);
}

.trust-badges {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.trust-item {
    padding: var(--space-2) var(--space-3);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-300);
}

/* === HERO VISUAL CARD === */
.hero-visual {
    position: relative;
}

.visual-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.visual-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.visual-dots {
    display: flex;
    gap: var(--space-2);
}

.visual-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-gray-300);
}

.visual-dots span:nth-child(1) { background: #ff5f57; }
.visual-dots span:nth-child(2) { background: #ffbd2e; }
.visual-dots span:nth-child(3) { background: #28ca42; }

.visual-title {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-600);
}

.visual-content {
    padding: var(--space-6);
}

.metric-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.metric {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.metric-label {
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
}

.metric-value.success {
    color: var(--color-success);
}

.chart-placeholder {
    margin-bottom: var(--space-6);
}

.chart-svg {
    width: 100%;
    height: auto;
}

.status-indicators {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.indicator {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.indicator.success .indicator-dot {
    background: var(--color-success);
}

.indicator.warning .indicator-dot {
    background: var(--color-warning);
}

/* === PILLARS SECTION === */
.pillars-section {
    padding: var(--space-24) var(--space-6);
    background: var(--color-gray-50);
}

.section-container {
    max-width: 1280px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
}

.pillar-card {
    padding: var(--space-8);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.pillar-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.pillar-icon {
    margin-bottom: var(--space-5);
}

.pillar-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.pillar-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-600);
    margin-bottom: var(--space-5);
}

.pillar-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.pillar-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: 0.9375rem;
    color: var(--color-gray-600);
}

.pillar-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

/* === PROOF SECTION === */
.proof-section {
    padding: var(--space-24) var(--space-6);
    background: var(--color-white);
}

.proof-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.proof-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-3);
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.proof-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.proof-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-600);
    margin-bottom: var(--space-8);
}

.proof-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.proof-metric-value {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    display: block;
    margin-bottom: var(--space-1);
}

.proof-metric-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.proof-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.proof-link:hover {
    gap: var(--space-3);
}

.proof-card {
    padding: var(--space-6);
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
}

.proof-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.proof-card-title {
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
}

.proof-card-badge {
    padding: var(--space-1) var(--space-2);
    background: var(--color-success);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
}

.proof-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 200px;
    margin-bottom: var(--space-6);
    gap: var(--space-3);
}

.proof-bar {
    flex: 1;
    height: var(--height);
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: var(--space-2);
    animation: bar-grow 0.6s ease-out var(--delay) both;
}

@keyframes bar-grow {
    from { height: 0; opacity: 0; }
    to { height: var(--height); opacity: 1; }
}

.proof-bar span {
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

.proof-scores {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.score-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3);
    background: var(--color-white);
    border-radius: var(--radius-md);
}

.score-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.score-value {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
}

/* === CTA SECTION === */
.cta-section {
    padding: var(--space-24) var(--space-6);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content {
    text-align: center;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-300);
    margin-bottom: var(--space-8);
}

.cta-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta-primary {
    padding: var(--space-4) var(--space-10);
    background: var(--color-white);
    color: var(--color-primary);
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.btn-cta-primary:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

.btn-cta-secondary {
    padding: var(--space-4) var(--space-10);
    background: transparent;
    color: var(--color-white);
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.btn-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* === FOOTER === */
.footer-ultra {
    padding: var(--space-16) var(--space-6) var(--space-8);
    background: var(--color-gray-900);
    color: var(--color-gray-400);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-logo {
    height: 40px;
    margin-bottom: var(--space-4);
}

.footer-description {
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 320px;
}

.footer-links h4 {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links a {
    display: block;
    font-size: 0.9375rem;
    color: var(--color-gray-400);
    text-decoration: none;
    margin-bottom: var(--space-3);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .proof-content {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-mobile-toggle {
        display: block;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    
    .proof-metrics {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}