/* ========================================================================== VERTEX — Design tokens Theme-independent tokens live here. Color tokens are defined per-theme below so the whole site can switch between light and dark via [data-theme] on — see the theme toggle in script.js. ========================================================================== */ :root { /* -- Brand accent: constant across both themes for a consistent identity -- */ --color-accent: #e2872f; --color-accent-strong: #c96a1c; --color-accent-rgb: 226, 135, 47; --color-on-accent: #ffffff; /* -- Type -- */ --font-display: 'Space Grotesk', 'Inter', sans-serif; --font-body: 'Inter', sans-serif; /* -- Spacing scale -- */ --space-1: 0.4rem; --space-2: 0.8rem; --space-3: 1.6rem; --space-4: 2.4rem; --space-5: 4rem; --space-6: 6rem; /* -- Shape / motion -- */ --radius-sm: 6px; --radius-md: 12px; --radius-lg: 18px; --ease-out: cubic-bezier(0.16, 1, 0.3, 1); --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1); --dur-fast: 180ms; --dur-mid: 380ms; --header-height: 110px; /* Small breathing room left between the panel's bottom edge and the bottom of the viewport (taskbar, browser chrome, etc). */ --stack-bottom-gap: 20px; /* Panel height is derived from the viewport minus the sticky top offset and the bottom gap, so top + height + bottom-gap always equals 100vh — the panel can never be tall enough to get clipped. */ --stack-panel-height: clamp( 560px, calc(100vh - var(--header-height) - var(--space-2) - var(--stack-bottom-gap)), 980px ); /* Uniform reveal margin between one settled sub-section and the next one stacking over it. 38px = ~1cm on a standard 96dpi screen, so every "step" in the stack always leaves at least a full centimetre of the previous sub-section visible around the new one. */ --stack-gap: 38px; --stack-card-radius: 44px; --stack-card-pad: 64px; /* Total scroll distance for the sequence: one full viewport to arrive at sub-section 1, plus one more per hand-off to the next card (3 hand-offs for 4 cards), so each stacking motion gets a full, unhurried scroll pass instead of feeling rushed. */ --stack-track-height: 460vh; } @media (max-width: 900px) { :root { --stack-panel-height: clamp( 520px, calc(100vh - var(--header-height) - var(--space-2) - var(--stack-bottom-gap)), 920px ); --stack-card-radius: 30px; --stack-card-pad: 32px; --stack-track-height: 420vh; } } @media (max-width: 560px) { :root { --stack-gap: 20px; --stack-card-pad: 22px; --stack-track-height: 380vh; } } /* ========================================================================== Theme: light (default) ========================================================================== */ :root, :root[data-theme="light"] { --color-bg: #f7f6f2; --color-panel: #ffffff; --color-navy: #1c2b46; /* structural borders / focus rings / ink accents */ --color-ink: #171b22; --color-ink-muted: #5b6472; --color-header-bar: #12151c; --glass-bg: rgba(255, 255, 255, 0.62); --glass-border: rgba(28, 43, 70, 0.28); --glass-blur: 14px; --field-bg: rgba(255, 255, 255, 0.85); --field-placeholder: rgba(23, 27, 34, 0.35); /* Sub-section gradients — a restrained corporate progression (deep navy → teal → indigo → bronze) that stays in the same family as the brand navy/accent instead of the previous candy-bright hues. */ --card1-grad-a: #e6e8eb; --card1-grad-b: #35507c; --card2-grad-a: #f1f9f8; --card2-grad-b: #14958a; --card3-grad-a: #ffffff; --card3-grad-b: #133160; --card4-grad-a: #f0ebe8; --card4-grad-b: #b06a26; --card-ink: #ffffff; color-scheme: light; } /* ========================================================================== Theme: dark ========================================================================== */ :root[data-theme="dark"] { --color-bg: #0b0f16; --color-panel: #131a26; --color-navy: #aab6c9; /* structural borders lighten so they read on dark surfaces */ --color-ink: #eef2f7; --color-ink-muted: #93a0b4; --color-header-bar: #05070b; --glass-bg: rgba(19, 26, 38, 0.6); --glass-border: rgba(238, 242, 247, 0.16); --glass-blur: 16px; --field-bg: rgba(255, 255, 255, 0.06); --field-placeholder: rgba(238, 242, 247, 0.35); --card1-grad-a: #b1b5bb; --card1-grad-b: #0a1220; --card2-grad-a: #b2c9c6; --card2-grad-b: #06231f; --card3-grad-a: #c6c5cd; --card3-grad-b: #1c1740; --card4-grad-a: #dacfc3; --card4-grad-b: #2b1706; --card-ink: #F3F4F6; color-scheme: dark; } /* ========================================================================== Reset & base ========================================================================== */ *, *::before, *::after { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; background: var(--color-bg); color: var(--color-ink); font-family: var(--font-body); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; transition: background-color var(--dur-mid) var(--ease-out), color var(--dur-mid) var(--ease-out); } h1, h2, h3 { font-family: var(--font-display); margin: 0; letter-spacing: -0.01em; } p { margin: 0; } ul { list-style: none; margin: 0; padding: 0; } a { color: inherit; text-decoration: none; } button { font-family: inherit; cursor: pointer; } input { font-family: inherit; } .eyebrow { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent); margin-bottom: var(--space-2); } /* Smooth cross-theme transitions on the main surfaces (gradients on the sub-section cards are intentionally excluded — browsers can't tween gradient stops smoothly, so those swap instantly, which reads fine). */ .stack-frame, .feature-box, .site-footer, .closing__panel, .field__input, .stack-card__label { transition: background-color var(--dur-mid) var(--ease-out), border-color var(--dur-mid) var(--ease-out), color var(--dur-mid) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out); } /* ========================================================================== Header — thin top accent bar + logo pinned top-left ========================================================================== */ .site-header { position: fixed; inset: 0 0 auto 0; height: var(--header-height); z-index: 100; transition: background var(--dur-mid) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out); } .site-header__bar { height: 0px; width: 100%; background: var(--color-header-bar); } .site-header.is-scrolled { background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); box-shadow: 0 8px 24px -16px rgba(28, 43, 70, 0.35); } .navbar{ max-width:1480px; margin:0 auto; height:100%; padding :0 var(--space-5); display:flex; align-items:center; justify-content:space-between; } /* Logo container — pinned top-left per spec */ .navbar__logo { display: inline-flex; } .navbar__logo-badge { display: inline-flex; align-items: center; justify-content: center; transition: transform var(--dur-fast) var(--ease-out); } .navbar__logo:hover .navbar__logo-badge { transform: translateY(-2px); } .navbar__logo-word { font-family: var(--font-display); font-weight: 600; color: #ffffff; font-size: 0.92rem; letter-spacing: 0.01em; white-space: nowrap; } .navbar__logo-img { height: 100px; width: auto; display: block; transform: translate(-70px, 0px); } .navbar__nav { display: flex; align-items: center; gap: var(--space-4); margin-top: 0.9rem; } .navbar__links { display: flex; gap: var(--space-4); font-size: 0.9rem; color: var(--color-ink-muted); } .navbar__links a { transition: color var(--dur-fast) var(--ease-out); } .navbar__links a:hover { color: var(--color-navy); } /* Theme toggle — small circular switch, sun/moon crossfade */ .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 50%; border: 1.5px solid var(--glass-border); background: var(--glass-bg); color: var(--color-ink); position: relative; transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out); } .theme-toggle:hover { border-color: var(--color-accent); transform: translateY(-2px); } .theme-toggle__icon { width: 19px; height: 19px; position: absolute; transition: opacity var(--dur-mid) var(--ease-in-out), transform var(--dur-mid) var(--ease-in-out); } .theme-toggle__icon--sun { opacity: 1; transform: rotate(0deg) scale(1); } .theme-toggle__icon--moon { opacity: 0; transform: rotate(-60deg) scale(0.6); } [data-theme="dark"] .theme-toggle__icon--sun { opacity: 0; transform: rotate(60deg) scale(0.6); } [data-theme="dark"] .theme-toggle__icon--moon { opacity: 1; transform: rotate(0deg) scale(1); } /* ===================================================== MEGA MENU ===================================================== */ .dropdown{ position:relative; } /* Show dropdown on hover */ .dropdown:hover .mega-menu{ opacity:1; visibility:visible; transform: translateX(-50%) translateY(0); } /* Dropdown Box */ .mega-menu{ position:absolute; top:100%; margin-top:-2px; left:50%; transform: translateX(-50%) translateY(0); width:650px; background:white; padding:30px; border-radius:20px; box-shadow: 0 20px 50px rgba(0,0,0,.12); opacity:0; visibility:hidden; transition:.3s ease; z-index:1000; } /* Links Layout */ .menu-links{ display:grid; grid-template-columns: repeat(3,1fr); gap: 10px; align-items:center; white-space:nowrap; } .menu-links a{ color:var(--text-light); font-weight:500; transition:.3s ease; } .menu-links a:hover{ color:var(--secondary); transform:translateY(-2px); } /* ========================================================================== Buttons ========================================================================== */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); border: 1px solid transparent; border-radius: var(--radius-sm); padding: 0.85rem 1.6rem; font-size: 0.92rem; font-weight: 600; transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out); } .btn:active { transform: translateY(1px) scale(0.98); } .btn--primary { background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong)); color: var(--color-on-accent); } .btn--primary:hover { box-shadow: 0 10px 24px -8px rgba(var(--color-accent-rgb), 0.55); transform: translateY(-2px); } .btn--ghost { background: transparent; border-color: var(--glass-border); color: var(--color-ink); } .btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); } .btn--pill { border-radius: 999px; padding: 0.7rem 1.4rem; font-size: 0.85rem; } .btn--small { padding: 0.65rem 1.2rem; font-size: 0.85rem; } .btn--large { padding: 1.1rem 2.2rem; font-size: 1rem; } /* Activate reads as the brand-accent control, with a soft idle pulse to invite the click — same treatment in both themes. */ .btn--activate { position: relative; isolation: isolate; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong)); color: var(--color-on-accent); min-width: 168px; } .btn--activate::after { content: ''; position: absolute; inset: -1px; border-radius: inherit; box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.45); animation: pulse-ring 2.6s var(--ease-in-out) infinite; z-index: -1; } @keyframes pulse-ring { 0% { box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.4); } 70% { box-shadow: 0 0 0 14px rgba(var(--color-accent-rgb), 0); } 100% { box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0); } } /* ========================================================================== Hero ========================================================================== */ .hero { padding: calc(var(--header-height) + var(--space-5)) var(--space-5) var(--space-4); max-width: 900px; margin: 0 auto; } .hero__title { font-size: clamp(2rem, 4.4vw, 3.2rem); font-weight: 600; line-height: 1.1; } .hero__subtitle { margin-top: var(--space-2); max-width: 560px; font-size: 1.05rem; color: var(--color-ink-muted); } /* ========================================================================== STACKED SEQUENCE (true overlapping cards) .stack-track is a tall spacer; .stack-panel pins via position: sticky for the duration of that scroll — this is what prevents the page from advancing until the sequence finishes. Inside the fixed-size panel, every .stack-card is absolutely positioned and fully fills sub-section 1's footprint. Sub-section 1 stays put as the base layer. Each following sub-section starts translated fully out of view below the frame; as the user scrolls through its phase it slides up and settles inset by (--stack-gap * its position in the stack) from the frame edge — which, because every earlier card is itself inset by one fewer step, always reads as a uniform ≥1cm margin around the sub-section sitting directly beneath it. script.js drives the reveal (0→1) and the covered-card dim/blur purely via custom properties, so layout math never fights the animation. ========================================================================== */ .stack-track { position: relative; height: var(--stack-track-height, 480vh); } .stack-panel { position: sticky; top: calc(var(--header-height) + var(--space-2)); height: var(--stack-panel-height); display: flex; align-items: center; padding: 0 20px; } .stack-frame { position: relative; width: 100%; max-width: 1600px; margin: 0 auto; height: 95%; border-radius: var(--stack-card-radius); overflow: hidden; box-shadow: 0 30px 60px -30px rgba(28, 43, 70, 0.45); background: var(--color-panel); } /* Every card fills the frame at rest; each successive card is inset one more --stack-gap step than the one before it, so it settles leaving a uniform margin around whichever card is directly beneath it. */ .stack-card { position: absolute; border-radius: var(--stack-card-radius); overflow: hidden; will-change: transform; box-shadow: 0 24px 48px -20px rgba(8, 12, 20, 0.55); /* Translate by the full panel height (not the card's own, inset-reduced height) so a not-yet-revealed card travels far enough to clear the frame's bottom edge completely — otherwise an inset card only moves by its own shorter height and ends up still poking into view. */ transform: translateY(calc((1 - var(--reveal, 1)) * (var(--stack-panel-height) + 100px))); transition: box-shadow var(--dur-fast) linear; } .stack-card[data-stack-card="1"] { top: 0; right: 0; bottom: 0; left: 0; z-index: 1; } .stack-card[data-stack-card="2"] { top: var(--stack-gap); right: var(--stack-gap); bottom: 0; left: var(--stack-gap); z-index: 2; } .stack-card[data-stack-card="3"] { top: calc(var(--stack-gap) * 2); right: calc(var(--stack-gap) * 2); bottom: 0; left: calc(var(--stack-gap) * 2); z-index: 3; } .stack-card[data-stack-card="4"] { top: calc(var(--stack-gap) * 3); right: calc(var(--stack-gap) * 3); bottom: 0; left: calc(var(--stack-gap) * 3); z-index: 4; } .stack-card[data-stack-card="1"] { background: linear-gradient(135deg, var(--card1-grad-a), var(--card1-grad-b)); color: var(--card-ink); } .stack-card[data-stack-card="2"] { background: linear-gradient(135deg, var(--card2-grad-a), var(--card2-grad-b)); color: var(--card-ink); } .stack-card[data-stack-card="3"] { background: linear-gradient(135deg, var(--card3-grad-a), var(--card3-grad-b)); color: var(--card-ink); } .stack-card[data-stack-card="4"] { background: linear-gradient(135deg, var(--card4-grad-a), var(--card4-grad-b)); color: var(--card-ink); } /* A card not yet revealed sits fully below the frame — keep it out of the tab/click order until it actually slides into view. */ .stack-card.is-hidden { pointer-events: none; } .stack-card.is-hidden .stack-card__body { visibility: hidden; } /* Dim + blur overlay for a sub-section once the next one has settled on top of it. Sits above the body but below the label, so the "Sub-Section N" chip always stays crisp while the body behind it visibly recedes — driven by --collapse-dim / --collapse-blur from JS. */ .stack-card::before { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: rgba(10, 14, 22, var(--collapse-dim, 0)); backdrop-filter: blur(var(--collapse-blur, 0px)); -webkit-backdrop-filter: blur(var(--collapse-blur, 0px)); transition: background var(--dur-fast) linear; } /* Label — small bordered chip pinned to each card's own top-left corner */ .stack-card__label { position: absolute; top: var(--space-3); left: var(--space-3); margin: 0; padding: 0.55rem 1.1rem; font-size: 0.82rem; font-weight: 600; background: #ffffff; color: #171b22; /* constant — this chip is a fixed white "sticker" in both themes */ border: 1.5px solid #1c2b46; border-radius: var(--radius-sm); z-index: 2; } /* Body: left = heading/copy, right = the enlarged feature box. The box is stretched to the row's full height and roughly half the row's width, with a uniform --stack-card-pad gap on every side, so it reads as covering at least half of the sub-section with even breathing room all around it. */ .stack-card__body { position: relative; height: 100%; display: flex; align-items: stretch; gap: var(--stack-card-pad); padding: calc(var(--stack-card-pad) + 28px) var(--stack-card-pad) var(--stack-card-pad) var(--stack-card-pad); } .stack-card__left { flex: 1 1 46%; min-width: 0; display: flex; flex-direction: column; justify-content: center; } .stack-card__title { font-size: clamp(2.2rem, 3.4vw, 3.4rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-170px); } .stack-card__title1 { font-size: clamp(5.1rem, 3.4vw, 3.4rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-170px); } .stack-card__text1 { margin-top: var(--space-3); max-width: 46ch; color: currentColor; opacity: 0.82; font-size: 3.05rem; transform: translateY(-150px); } .stack-card__title2 { font-size: clamp(2.2rem, 3.4vw, 3.4rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-130px); } .stack-card__title3 { font-size: clamp(5.2rem, 7.5vw, 8.5rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-140px); } .stack-card__text2 { margin-top: var(--space-3); max-width: 46ch; color: currentColor; opacity: 0.82; font-size: 3.05rem; transform: translateY(-90px); } .stack-card__title4 { font-size: clamp(5.2rem, 3.4vw, 3.4rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-100px); } .stack-card__title5 { font-size: clamp(4.2rem, 5.2vw, 8.5rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-110px); } .stack-card__text3 { margin-top: var(--space-3); max-width: 46ch; color: currentColor; opacity: 0.82; font-size: 3.05rem; transform: translateY(-60px); } .stack-card__title6 { font-size: clamp(6.2rem, 4.2vw, 4.2rem); font-weight: 600; line-height: 1.05; color: var(--card-ink); transform: translateY(-100px); } .stack-card__text4 { margin-top: var(--space-3); max-width: 46ch; color: currentColor; opacity: 0.82; font-size: 3.05rem; transform: translateY(-50px); } /* ========================================================================== Feature Box — glassmorphic card pinned to the right, per the mockup ========================================================================== */ .feature-box { position: relative; flex: 1 1 50%; min-width: 0; height: 100%; min-height: 320px; border-radius: var(--radius-lg); padding: var(--space-5); background: var(--glass-bg); border: 1.5px solid var(--glass-border); backdrop-filter: blur(var(--glass-blur)) saturate(140%); -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%); box-shadow: 0 20px 40px -18px rgba(28, 43, 70, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.5); display: grid; place-items: center; } .feature-box__panel { grid-area: 1 / 1; width: 100%; display: flex; flex-direction: column; align-items: center; opacity: 0; transform: translateY(8px) scale(0.98); pointer-events: none; transition: opacity var(--dur-mid) var(--ease-in-out), transform var(--dur-mid) var(--ease-in-out); } .feature-box__panel.is-active { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; } /* ========================================================================== Sample form ========================================================================== */ .sample-form { width: 100%; display: flex; flex-direction: column; gap: var(--space-3); } .field { display: flex; flex-direction: column; gap: 0.35rem; } .field__label { font-size: 0.78rem; color: var(--color-ink-muted); font-weight: 500; } .field__input { background: var(--field-bg); border: 1.5px solid var(--glass-border); border-radius: var(--radius-sm); padding: 0.75rem 0.9rem; color: var(--color-ink); font-size: 0.92rem; transition: border-color var(--dur-fast) var(--ease-out), background-color var(--dur-mid) var(--ease-out); } .field__input::placeholder { color: var(--field-placeholder); } .field__input:focus { outline: none; border-color: var(--color-accent); } .sample-form__actions { display: flex; gap: var(--space-2); } /* ========================================================================== Closing CTA ========================================================================== */ .closing { min-height: 60vh; display: flex; align-items: center; justify-content: center; padding: var(--space-6) var(--space-5); } .closing__panel { max-width: 640px; text-align: center; padding: var(--space-5); border-radius: var(--radius-lg); background: var(--glass-bg); border: 1.5px solid var(--glass-border); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); } .closing__panel .eyebrow { justify-content: center; } .closing__title { font-size: clamp(1.7rem, 3.6vw, 2.4rem); margin-bottom: var(--space-3); } .closing__text { color: var(--color-ink-muted); margin-bottom: var(--space-4); } /* ========================================================================== Footer ========================================================================== */ .site-footer { border-top: 2px solid var(--color-navy); background: var(--color-panel); padding: var(--space-5) var(--space-5) var(--space-4); } .site-footer__top { max-width: 1440px; margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-5); padding-bottom: var(--space-4); border-bottom: 1px solid var(--glass-border); } .site-footer__brand { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-2); max-width: 320px; } .site-footer__tagline { color: var(--color-ink-muted); font-size: 0.88rem; } .site-footer__col h3 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-ink-muted); margin-bottom: var(--space-3); } .site-footer__col ul { display: flex; flex-direction: column; gap: var(--space-2); } .site-footer__col a { color: var(--color-ink); font-size: 0.9rem; transition: color var(--dur-fast) var(--ease-out); } .site-footer__col a:hover { color: var(--color-accent); } .site-footer__bottom { max-width: 1440px; margin: 0 auto; padding-top: var(--space-3); font-size: 0.8rem; color: var(--color-ink-muted); } /* ========================================================================== Accessibility ========================================================================== */ a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn--activate::after { animation: none; } .feature-box__panel { transition-duration: 1ms; } } /* ========================================================================== Responsive ========================================================================== */ @media (max-width: 900px) { .navbar { padding: var(--space-2) var(--space-3) 0; } .navbar__links { display: none; } .stack-card__body { flex-direction: column; overflow-y: auto; } .stack-card__left { flex: 0 0 auto; justify-content: flex-start; } .feature-box { flex: 1 1 auto; width: 100%; height: auto; min-height: 260px; } :root { --stack-panel-height: clamp( 480px, calc(100vh - var(--header-height) - var(--space-2) - var(--stack-bottom-gap)), 900px ); } } @media (max-width: 560px) { .site-footer__top { grid-template-columns: 1fr; } .stack-panel { padding: 0 var(--space-3); } .stack-card__body { padding-left: var(--space-3); padding-right: var(--space-3); gap: var(--space-3); } }