/* ============================================ Global Base Styles ============================================ */ /* Google Fonts loaded via in HTML for better performance */ /* @import removed — see index.html */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; color-scheme: light; scroll-padding-top: calc(var(--nav-height) + var(--space-4)); } body { font-family: var(--font-body); font-size: var(--text-base); line-height: var(--leading-normal); color: var(--text-primary); background-color: var(--surface-page); transition: background-color var(--dur-normal) var(--ease-out-quart), color var(--dur-normal) var(--ease-out-quart); overflow-x: hidden; min-height: 100vh; } /* Font features */ body { font-variant-numeric: tabular-nums; } h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); } /* Headings */ h1 { font-size: var(--text-5xl); font-weight: 800; line-height: var(--leading-tight); letter-spacing: var(--tracking-tight); } h2 { font-size: var(--text-4xl); font-weight: 700; line-height: var(--leading-tight); letter-spacing: var(--tracking-tight); } h3 { font-size: var(--text-3xl); font-weight: 700; line-height: var(--leading-snug); } h4 { font-size: var(--text-2xl); font-weight: 600; } h5 { font-size: var(--text-xl); font-weight: 600; } h6 { font-size: var(--text-lg); font-weight: 600; } p { line-height: var(--leading-relaxed); } a { color: var(--color-primary-500); text-decoration: none; transition: color var(--dur-fast) var(--ease-out-quart); } a:hover { color: var(--color-primary-400); } img { max-width: 100%; height: auto; display: block; } code, pre { font-family: var(--font-mono); font-size: 0.9em; } button { cursor: pointer; font-family: inherit; } input, textarea, select { font-family: inherit; } /* ============================================ Layout Utilities ============================================ */ .container { width: 100%; max-width: var(--container-xl); margin-inline: auto; padding-inline: var(--space-6); } @media (max-width: 768px) { .container { padding-inline: var(--space-4); } } .section { padding-block: var(--section-padding); } .section--alt { background-color: var(--surface-raised); } /* Section Header */ .section-header { text-align: center; margin-bottom: var(--space-16); } .section-header__eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); font-weight: 600; letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--color-primary-500); margin-bottom: var(--space-3); } .section-header__eyebrow::before, .section-header__eyebrow::after { content: ''; width: 24px; height: 1px; background: var(--color-primary-300); } .section-header__title { font-size: var(--text-4xl); color: var(--text-primary); margin-bottom: var(--space-4); } .section-header__desc { font-size: var(--text-lg); color: var(--text-secondary); max-width: 560px; margin-inline: auto; line-height: var(--leading-relaxed); } /* ============================================ Navigation ============================================ */ .nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-height); background: rgba(252,252,254,0.85); backdrop-filter: blur(16px) saturate(180%); -webkit-backdrop-filter: blur(16px) saturate(180%); border-bottom: 1px solid var(--border-subtle); transition: background var(--dur-normal) var(--ease-out-quart), border-color var(--dur-normal) var(--ease-out-quart), box-shadow var(--dur-normal) var(--ease-out-quart); } [data-theme="dark"] .nav { background: rgba(26,29,46,0.85); } .nav.scrolled { box-shadow: var(--shadow-md); } .nav__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: var(--container-xl); margin-inline: auto; padding-inline: var(--space-6); } .nav__logo { display: flex; align-items: center; gap: var(--space-2); text-decoration: none; font-family: var(--font-display); color: var(--text-primary); transition: opacity var(--dur-fast) var(--ease-out-quart); } .nav__logo:hover { opacity: 0.85; color: var(--text-primary); } .nav__logo svg { flex-shrink: 0; border-radius: var(--radius-md); transition: transform var(--dur-fast) var(--ease-out-quart); } .nav__logo:hover svg { transform: scale(1.05); } .nav__logo-text { font-size: var(--text-lg); font-weight: 800; letter-spacing: -0.01em; background: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; } .nav__menu { display: flex; align-items: center; gap: var(--space-1); list-style: none; } .nav__link { display: block; padding: var(--space-2) var(--space-3); font-size: var(--text-sm); font-weight: 500; color: var(--text-secondary); border-radius: var(--radius-md); transition: color var(--dur-fast) var(--ease-out-quart), background var(--dur-fast) var(--ease-out-quart); position: relative; } .nav__link:hover { color: var(--text-primary); background: var(--color-primary-50); } [data-theme="dark"] .nav__link:hover { background: #393e52; } .nav__link.active { color: var(--color-primary-500); font-weight: 600; } .nav__link.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 16px; height: 2px; background: var(--color-primary-500); border-radius: var(--radius-full); } .nav__actions { display: flex; align-items: center; gap: var(--space-2); } .nav__icon-btn { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: var(--radius-md); background: transparent; border: 1px solid var(--border-subtle); color: var(--text-secondary); transition: all var(--dur-fast) var(--ease-out-quart); } .nav__icon-btn:hover { background: var(--color-primary-50); color: var(--color-primary-500); border-color: var(--color-primary-200); } [data-theme="dark"] .nav__icon-btn:hover { background: #393e52; } .nav__mobile-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 36px; height: 36px; background: transparent; border: none; padding: var(--space-2); } .nav__mobile-toggle span { display: block; width: 100%; height: 2px; background: var(--text-primary); border-radius: 2px; transition: transform var(--dur-normal) var(--ease-out-quart), opacity var(--dur-fast) var(--ease-out-quart); transform-origin: center; } .nav__mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); } .nav__mobile-toggle.open span:nth-child(2) { opacity: 0; } .nav__mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); } /* Mobile drawer */ .nav__drawer { position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0; background: var(--surface-page); z-index: 99; padding: var(--space-8) var(--space-6); transform: translateX(100%); transition: transform var(--dur-normal) var(--ease-out-expo); display: flex; flex-direction: column; gap: var(--space-2); } .nav__drawer.open { transform: translateX(0); } .nav__drawer-link { display: block; padding: var(--space-4); font-size: var(--text-xl); font-weight: 600; color: var(--text-primary); border-radius: var(--radius-lg); transition: background var(--dur-fast) var(--ease-out-quart), color var(--dur-fast) var(--ease-out-quart); } .nav__drawer-link:hover { background: var(--color-primary-50); color: var(--color-primary-500); } [data-theme="dark"] .nav__drawer-link:hover { background: #393e52; } @media (max-width: 768px) { .nav__menu { display: none; } .nav__mobile-toggle { display: flex; } .nav__inner { padding-inline: var(--space-4); } } /* ============================================ Buttons ============================================ */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: var(--space-3) var(--space-6); font-family: var(--font-body); font-size: var(--text-sm); font-weight: 600; line-height: 1; white-space: nowrap; border: 1px solid transparent; border-radius: var(--radius-lg); cursor: pointer; text-decoration: none; transition: all var(--dur-fast) var(--ease-out-quart); user-select: none; position: relative; overflow: hidden; } .btn:focus-visible { outline: 2px solid var(--color-primary-500); outline-offset: 3px; } .btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; } .btn--primary { background: linear-gradient(135deg, var(--color-primary-500), #3d50e0); color: var(--text-on-brand); border-color: transparent; box-shadow: 0 1px 2px rgba(26,28,46,0.08), 0 2px 4px rgba(92,111,242,0.15); } .btn--primary:hover { background: linear-gradient(135deg, var(--color-primary-600), #2e3ec0); color: var(--text-on-brand); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(92,111,242,0.3), 0 1px 3px rgba(26,28,46,0.1); } .btn--primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); } .btn--secondary { background: transparent; color: var(--text-primary); border-color: var(--border-default); } .btn--secondary:hover { background: var(--color-primary-50); border-color: var(--color-primary-200); color: var(--color-primary-500); transform: translateY(-1px); } [data-theme="dark"] .btn--secondary:hover { background: #393e52; } .btn--ghost { background: transparent; color: var(--text-secondary); border-color: transparent; } .btn--ghost:hover { background: var(--color-primary-50); color: var(--color-primary-500); } .btn--accent { background: var(--color-accent-500); color: #1b1d30; border-color: var(--color-accent-500); } .btn--accent:hover { background: var(--color-accent-600); color: #1b1d30; transform: translateY(-1px); box-shadow: var(--shadow-md); } .btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); border-radius: var(--radius-xl); } .btn--sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); border-radius: var(--radius-md); } /* ============================================ Tags & Badges ============================================ */ .tag { display: inline-flex; align-items: center; gap: var(--space-1); padding: var(--space-1) var(--space-3); font-size: var(--text-xs); font-weight: 500; border-radius: var(--radius-full); background: var(--color-primary-50); color: var(--color-primary-600); border: 1px solid var(--color-primary-100); white-space: nowrap; } [data-theme="dark"] .tag { background: #393e52; color: var(--color-primary-300); border-color: #43485e; } .tag--accent { background: #fef7dc; color: var(--color-accent-600); border-color: #f5dd8b; } .tag--success { background: var(--color-success-bg); color: var(--color-success); border-color: #a7f3d0; } .tag--warning { background: var(--color-warning-bg); color: var(--color-warning); border-color: #fde68a; } .tag--error { background: var(--color-error-bg); color: var(--color-error); border-color: #fca5a5; } .tag--neutral { background: var(--color-neutral-100); color: var(--color-neutral-600); border-color: var(--color-neutral-200); } [data-theme="dark"] .tag--neutral { background: #393e52; color: var(--color-neutral-400); } /* ============================================ Cards ============================================ */ .card { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-xl); overflow: hidden; transition: box-shadow 0.35s var(--ease-out-expo), transform 0.35s var(--ease-out-expo), border-color 0.3s ease; position: relative; } .card::before { content: ''; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity 0.35s var(--ease-out-expo); pointer-events: none; z-index: 0; } .card--hoverable:hover { box-shadow: 0 20px 50px -15px rgba(92,111,242,0.18), 0 8px 20px -10px rgba(26,28,46,0.08); transform: translateY(-6px); border-color: #c8d4fa; } .card--hoverable:hover::before { opacity: 1; background: linear-gradient(180deg, #f2f5ff 0%, transparent 40%); } [data-theme="dark"] .card--hoverable:hover { border-color: #555b74; } [data-theme="dark"] .card--hoverable:hover::before { background: linear-gradient(180deg, rgba(57,62,82,0.5) 0%, transparent 40%); } /* ============================================ Footer ============================================ */ .footer { background: var(--surface-card); color: var(--text-secondary); padding-block: var(--space-16) var(--space-8); border-top: 1px solid var(--border-subtle); } [data-theme="dark"] .footer { background: var(--surface-card); } .footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-12); margin-bottom: var(--space-12); } .footer__brand-name { color: var(--text-primary); } .footer__brand-desc { color: var(--text-tertiary); } .footer__social { display: flex; gap: var(--space-2); } .footer__social-link { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; color: var(--text-secondary); font-weight: 600; font-size: 13px; border-radius: var(--radius-md); transition: all 200ms ease; text-decoration: none; } .footer__social-link:hover { background: var(--color-primary-500); color: white; transform: translateY(-2px); } .footer__heading { color: var(--text-primary); } .footer__links { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); } .footer__links a { color: var(--text-primary); text-decoration: none; } .footer__links a:hover { color: var(--color-primary-500); } .footer__email-link { display: inline-flex; align-items: center; gap: 4px; color: var(--text-primary); font-size: var(--text-sm); text-decoration: none; margin-top: var(--space-2); padding: 4px 0; } .footer__email-link:hover { color: var(--color-primary-500); } .footer__bottom { border-top: 1px solid var(--border-subtle); } .footer__copyright { color: var(--text-tertiary); } .footer__tech { color: var(--text-tertiary); } @media (max-width: 768px) { .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); } .footer__grid > :first-child { grid-column: 1 / -1; } .footer__bottom { flex-direction: column; align-items: flex-start; } } @media (max-width: 480px) { .footer__grid { grid-template-columns: 1fr; } } /* ============================================ Back to Top ============================================ */ .back-to-top { position: fixed; bottom: var(--space-8); right: var(--space-8); width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: var(--color-primary-500); color: white; border: none; border-radius: var(--radius-full); box-shadow: var(--shadow-lg); opacity: 0; transform: translateY(16px); pointer-events: none; transition: opacity var(--dur-normal) var(--ease-out-quart), transform var(--dur-normal) var(--ease-out-quart); z-index: 50; } .back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; } .back-to-top:hover { transform: translateY(-2px); box-shadow: var(--shadow-xl); } /* ============================================ Skeleton Loading ============================================ */ .skeleton { background: linear-gradient( 90deg, var(--color-neutral-100) 25%, var(--color-neutral-200) 50%, var(--color-neutral-100) 75% ); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-md); } [data-theme="dark"] .skeleton { background: linear-gradient( 90deg, #393e52 25%, #3d4257 50%, #393e52 75% ); background-size: 200% 100%; } @keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } } /* ============================================ Image Lightbox ============================================ */ .lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(10,12,18,0.92); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity var(--dur-normal) var(--ease-out-quart); padding: var(--space-8); } .lightbox.open { opacity: 1; pointer-events: auto; } .lightbox__img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); transform: scale(0.9); transition: transform var(--dur-normal) var(--ease-out-expo); } .lightbox.open .lightbox__img { transform: scale(1); } .lightbox__close { position: absolute; top: var(--space-6); right: var(--space-6); width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: #3a3f54; color: white; border: none; border-radius: var(--radius-full); font-size: var(--text-lg); transition: background var(--dur-fast) var(--ease-out-quart); } .lightbox__close:hover { background: #525871; } /* ============================================ Scroll Reveal Animation ============================================ */ .reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--dur-slow) var(--ease-out-quart), transform var(--dur-slow) var(--ease-out-quart); } .reveal.revealed { opacity: 1; transform: translateY(0); } /* Stagger delays */ .reveal[data-delay="1"] { transition-delay: 100ms; } .reveal[data-delay="2"] { transition-delay: 200ms; } .reveal[data-delay="3"] { transition-delay: 300ms; } .reveal[data-delay="4"] { transition-delay: 400ms; } .reveal[data-delay="5"] { transition-delay: 500ms; } /* Reduced Motion */ @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } } /* ============================================ Utility Classes ============================================ */ .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; } .text-primary { color: var(--text-primary); } .text-secondary{ color: var(--text-secondary); } .text-accent { color: var(--color-accent-500); } .text-brand { color: var(--color-primary-500); } .font-mono { font-family: var(--font-mono); } .text-center { text-align: center; } .flex-center { display: flex; align-items: center; justify-content: center; } .grid-gap { display: grid; gap: var(--space-6); }