/* ============================================================================ SolSentinel AI - Production-Grade Futuristic Stylesheet Modern glassmorphism, smooth animations, comprehensive utilities ============================================================================ */ /* Google Fonts - Now loaded via preload in HTML for non-blocking render */ /* @import removed - fonts preloaded in index.html for 200-400ms faster FCP */ /* ============================================================================ CSS CUSTOM PROPERTIES - Complete Design System ============================================================================ */ :root { /* Brand Colors - Your signature palette */ --primary: #1a252f; --primary-light: #2c3e50; --primary-dark: #0f1419; --accent-teal: #00d1b2; --accent-teal-light: #00f5d4; --accent-teal-dark: #00b89c; --accent-pink: #ff4081; --accent-pink-light: #ff6b9d; --accent-pink-dark: #e63a73; /* Background System */ --bg-primary: #0a0e1a; --bg-secondary: #151b2b; --bg-tertiary: #1e2535; --bg-card: rgba(255, 255, 255, 0.03); --bg-hover: rgba(255, 255, 255, 0.05); --bg-active: rgba(255, 255, 255, 0.08); /* Text Colors */ --text-primary: #ffffff; --text-secondary: #b8c5d6; --text-tertiary: #8a9bb3; /* WCAG AA compliant: 5.41:1 min contrast */ --text-muted: #556677; --text-disabled: #3a4556; /* Status Colors */ --success: #00d1b2; --warning: #f59e0b; --error: #ef4444; --info: #3b82f6; /* Glassmorphism */ --glass-bg: rgba(255, 255, 255, 0.05); --glass-bg-strong: rgba(255, 255, 255, 0.08); --glass-border: rgba(255, 255, 255, 0.1); --glass-border-strong: rgba(255, 255, 255, 0.2); --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37); /* Gradients */ --gradient-primary: linear-gradient(135deg, #1a252f 0%, #0d47a1 100%); --gradient-accent: linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-pink) 100%); --gradient-accent-reverse: linear-gradient(135deg, var(--accent-pink) 0%, var(--accent-teal) 100%); --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%); --gradient-hover: linear-gradient(145deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.04) 100%); /* Shadows & Glows */ --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05); --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1); --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15); --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2); --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25); --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.3); --glow-teal: 0 0 20px rgba(0, 209, 178, 0.3); --glow-teal-strong: 0 0 30px rgba(0, 209, 178, 0.5); --glow-pink: 0 0 20px rgba(255, 64, 129, 0.3); --glow-pink-strong: 0 0 30px rgba(255, 64, 129, 0.5); --glow-accent: 0 0 30px rgba(0, 209, 178, 0.4), 0 0 60px rgba(255, 64, 129, 0.2); /* Spacing System - 8px base (Tailwind-style) */ --space-0: 0; --space-px: 1px; --space-0-5: 0.125rem; /* 2px */ --space-1: 0.25rem; /* 4px */ --space-1-5: 0.375rem; /* 6px */ --space-2: 0.5rem; /* 8px */ --space-2-5: 0.625rem; /* 10px */ --space-3: 0.75rem; /* 12px */ --space-3-5: 0.875rem; /* 14px */ --space-4: 1rem; /* 16px */ --space-5: 1.25rem; /* 20px */ --space-6: 1.5rem; /* 24px */ --space-7: 1.75rem; /* 28px */ --space-8: 2rem; /* 32px */ --space-9: 2.25rem; /* 36px */ --space-10: 2.5rem; /* 40px */ --space-11: 2.75rem; /* 44px */ --space-12: 3rem; /* 48px */ --space-14: 3.5rem; /* 56px */ --space-16: 4rem; /* 64px */ --space-20: 5rem; /* 80px */ --space-24: 6rem; /* 96px */ --space-28: 7rem; /* 112px */ --space-32: 8rem; /* 128px */ /* Border Radius */ --radius-none: 0; --radius-sm: 0.25rem; /* 4px */ --radius-base: 0.5rem; /* 8px */ --radius-md: 0.75rem; /* 12px */ --radius-lg: 1rem; /* 16px */ --radius-xl: 1.5rem; /* 24px */ --radius-2xl: 2rem; /* 32px */ --radius-full: 9999px; /* 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: 400ms cubic-bezier(0.4, 0, 0.2, 1); --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55); --transition-elastic: 600ms cubic-bezier(0.68, -0.6, 0.32, 1.6); /* Z-index System */ --z-base: 1; --z-dropdown: 100; --z-sticky: 200; --z-fixed: 300; --z-modal-backdrop: 400; --z-modal: 500; --z-popover: 600; --z-tooltip: 700; --z-notification: 800; /* Font Sizes */ --text-xs: 0.75rem; /* 12px */ --text-sm: 0.875rem; /* 14px */ --text-base: 1rem; /* 16px */ --text-lg: 1.125rem; /* 18px */ --text-xl: 1.25rem; /* 20px */ --text-2xl: 1.5rem; /* 24px */ --text-3xl: 1.875rem; /* 30px */ --text-4xl: 2.25rem; /* 36px */ --text-5xl: 3rem; /* 48px */ /* Line Heights */ --leading-none: 1; --leading-tight: 1.25; --leading-snug: 1.375; --leading-normal: 1.5; --leading-relaxed: 1.625; --leading-loose: 2; } /* ============================================================================ THEME SYSTEM - Color palettes for different themes ============================================================================ */ /* Ocean Blue Theme */ [data-theme="ocean"] { --primary: #0a1929; --primary-light: #1e3a5f; --primary-dark: #050d15; --accent-teal: #00b4d8; --accent-teal-light: #48cae4; --accent-teal-dark: #0096c7; --accent-pink: #90e0ef; --accent-pink-light: #ade8f4; --accent-pink-dark: #48cae4; --bg-primary: #03045e; --bg-secondary: #023e8a; --bg-tertiary: #0077b6; --gradient-accent: linear-gradient(135deg, #00b4d8 0%, #90e0ef 100%); --gradient-accent-reverse: linear-gradient(135deg, #90e0ef 0%, #00b4d8 100%); } /* Purple Haze Theme */ [data-theme="purple"] { --primary: #1a0a2e; --primary-light: #3c2a5f; --primary-dark: #0f0519; --accent-teal: #a855f7; --accent-teal-light: #c084fc; --accent-teal-dark: #9333ea; --accent-pink: #ec4899; --accent-pink-light: #f472b6; --accent-pink-dark: #db2777; --bg-primary: #16213e; --bg-secondary: #0f3460; --bg-tertiary: #533483; --gradient-accent: linear-gradient(135deg, #a855f7 0%, #ec4899 100%); --gradient-accent-reverse: linear-gradient(135deg, #ec4899 0%, #a855f7 100%); } /* Matrix Green Theme */ [data-theme="matrix"] { --primary: #0d1b0d; --primary-light: #1a2f1a; --primary-dark: #050a05; --accent-teal: #00ff41; --accent-teal-light: #39ff14; --accent-teal-dark: #00cc33; --accent-pink: #00ff41; --accent-pink-light: #39ff14; --accent-pink-dark: #00cc33; --bg-primary: #0a0e0a; --bg-secondary: #0d1a0d; --bg-tertiary: #1a2e1a; --gradient-accent: linear-gradient(135deg, #00ff41 0%, #39ff14 100%); --gradient-accent-reverse: linear-gradient(135deg, #39ff14 0%, #00ff41 100%); } /* Midnight Black Theme */ [data-theme="midnight"] { --primary: #000000; --primary-light: #1a1a1a; --primary-dark: #000000; --accent-teal: #ffffff; --accent-teal-light: #f0f0f0; --accent-teal-dark: #d0d0d0; --accent-pink: #a0a0a0; --accent-pink-light: #c0c0c0; --accent-pink-dark: #808080; --bg-primary: #000000; --bg-secondary: #0a0a0a; --bg-tertiary: #1a1a1a; --gradient-accent: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%); --gradient-accent-reverse: linear-gradient(135deg, #a0a0a0 0%, #ffffff 100%); } /* Smooth transitions for theme changes */ body, section, .sidebar, header, .modal, button, input, select, textarea { transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease; } /* ============================================================================ SKELETON LOADING - CSS-Only Loading Placeholders Research: https://blog.logrocket.com/ux-design/skeleton-loading-screen-design/ Uses pure CSS for instant display (no JS dependency) ============================================================================ */ /* Base skeleton with shimmer animation */ .skeleton { background: linear-gradient( 110deg, var(--bg-secondary) 8%, var(--bg-tertiary) 18%, var(--bg-secondary) 33% ); background-size: 200% 100%; animation: skeleton-shimmer 1.5s linear infinite; border-radius: var(--radius-md); } @keyframes skeleton-shimmer { to { background-position-x: -200%; } } /* Skeleton text variants */ .skeleton-text { height: 1em; margin-bottom: 0.5em; border-radius: var(--radius-sm); } .skeleton-text.xs { width: 20%; } .skeleton-text.short { width: 40%; } .skeleton-text.medium { width: 70%; } .skeleton-text.long { width: 100%; } /* Skeleton for tier info in sidebar */ .skeleton-tier { padding: var(--space-3); } .skeleton-tier .skeleton-text { height: 0.875rem; margin-bottom: var(--space-2); } /* Skeleton for feature cards */ .skeleton-feature { height: 60px; margin-bottom: var(--space-2); } /* Hide skeleton when content loaded */ .skeleton-hidden { display: none !important; } /* Show real content when loaded */ .content-loaded { display: block; } /* Pulse variant for simpler loading states */ .skeleton-pulse { animation: skeleton-pulse 2s ease-in-out infinite; } @keyframes skeleton-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } } /* ============================================================================ RESET & BASE STYLES ============================================================================ */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; } body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: var(--leading-normal); overflow-x: hidden; min-height: 100vh; position: relative; } /* Animated background gradient */ body::before { content: ''; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at 20% 50%, rgba(0, 209, 178, 0.05) 0%, transparent 50%), radial-gradient(circle at 80% 80%, rgba(255, 64, 129, 0.05) 0%, transparent 50%); z-index: -1; animation: breathe 20s ease-in-out infinite; pointer-events: none; } @keyframes breathe { 0%, 100% { opacity: 0.5; } 50% { opacity: 0.8; } } /* Scrollbar styling */ ::-webkit-scrollbar { width: 12px; height: 12px; } ::-webkit-scrollbar-track { background: var(--bg-secondary); } ::-webkit-scrollbar-thumb { background: var(--glass-bg); border-radius: var(--radius-full); border: 2px solid var(--bg-secondary); } ::-webkit-scrollbar-thumb:hover { background: var(--glass-bg-strong); } /* ============================================================================ TYPOGRAPHY ============================================================================ */ h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: var(--leading-tight); letter-spacing: -0.025em; } h1 { font-size: var(--text-5xl); } h2 { font-size: var(--text-4xl); } h3 { font-size: var(--text-3xl); } h4 { font-size: var(--text-2xl); } h5 { font-size: var(--text-xl); } h6 { font-size: var(--text-lg); } p { margin-bottom: var(--space-4); } a { color: var(--accent-teal); text-decoration: none; transition: color var(--transition-fast); } a:hover { color: var(--accent-teal-light); } code { font-family: 'JetBrains Mono', 'Courier New', monospace; background: var(--glass-bg); padding: var(--space-1) var(--space-2); border-radius: var(--radius-sm); font-size: 0.9em; } pre { background: var(--bg-secondary); padding: var(--space-4); border-radius: var(--radius-lg); overflow-x: auto; border: 1px solid var(--glass-border); } pre code { background: transparent; padding: 0; } /* ============================================================================ HEADER - Futuristic with glassmorphism ============================================================================ */ header { position: sticky; top: 0; background: var(--glass-bg); backdrop-filter: blur(20px) saturate(180%); -webkit-backdrop-filter: blur(20px) saturate(180%); border-bottom: 1px solid var(--glass-border); padding: var(--space-4) var(--space-8); z-index: var(--z-sticky); box-shadow: var(--shadow-md); transition: transform var(--transition-base), box-shadow var(--transition-base); } header.scrolled { transform: translateY(-100%); box-shadow: none; } .logo-container { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: center; } .logo-wrapper { position: relative; display: inline-flex; align-items: center; gap: var(--space-4); } .logo-image { height: 80px; width: auto; filter: drop-shadow(var(--glow-teal)); transition: transform var(--transition-bounce), filter var(--transition-base); /* Cropped logo is now ~1:1 square (294x293) */ /* 80px height = 80px width, larger than 48px hamburger */ } .logo-image:hover { transform: scale(1.05) rotate(-2deg); filter: drop-shadow(var(--glow-accent)); } /* Responsive logo sizing */ @media (max-width: 1024px) { .logo-image { height: 70px; } } @media (max-width: 768px) { .logo-image { height: 60px; } } @media (max-width: 480px) { .logo-image { height: 50px; } } /* ============================================================================ HAMBURGER MENU - Modern animated ============================================================================ */ .hamburger { /* Reset default button styles (semantic