/* ==========================================================================
Stride landing page — styles.css
Design system: clean, minimal, modern YC startup aesthetic. Mobile-first.
HOW TO READ THIS FILE (order matches the page roughly top → bottom):
1. :root tokens — colors, radii, shadows, fonts, motion, dividers
2. Reset + base — box model, html/body, links, [hidden]
3. Layout primitives — .container, .section, .section-rule
4. Header + nav — sticky glass bar, wordmark, .nav__link
5. Buttons — .btn variants, loading spinner
6. Hero — headline + CTAs
7. Section heads — .eyebrow, .section__title, .section__sub
8. Cards — “For candidates” three-up grid
9. Form + chips — .panel, inputs, honeypot, success state
10. Founders + story — two-column founders; story intro + profile columns
11. Footer — compact bar, centered legal
12. Reveal + a11y — .reveal / .is-visible, prefers-reduced-motion
main.js pairs: .header.is-scrolled | .reveal + IntersectionObserver
========================================================================== */
/* ---------- 1. Design tokens (CSS variables) ---------- */
:root {
/* Brand + neutrals */
--color-primary: #0f84ff;
--color-primary-600: #0a6fd9;
--color-primary-700: #085ab0;
--color-secondary: #f0f7ff;
--color-surface: #ffffff;
--color-ink: #0a0a0a;
--color-muted: #6b7280;
--color-muted-2: #9ca3af;
--color-bg: #ffffff;
--color-bg-soft: #f6f7f9;
--color-border: #e7e8ec;
--color-border-strong: #d4d6dd;
--color-error: #d12d2d;
/* Corners + elevation */
--radius-md: 10px;
--radius-lg: 14px;
--radius-xl: 20px;
--radius-pill: 999px;
--shadow-xs: 0 1px 2px rgba(10, 10, 10, 0.04);
--shadow-sm: 0 1px 3px rgba(10, 10, 10, 0.06), 0 1px 2px rgba(10, 10, 10, 0.04);
--shadow-md: 0 4px 16px rgba(10, 10, 10, 0.06), 0 1px 3px rgba(10, 10, 10, 0.04);
--shadow-lg: 0 12px 40px rgba(10, 60, 140, 0.08), 0 2px 6px rgba(10, 10, 10, 0.05);
--shadow-focus: 0 0 0 4px rgba(15, 132, 255, 0.18);
/* Max content width; .container--narrow used under the form */
--container: 1180px;
--container-narrow: 720px;
/* Headlines vs body (loaded from Google Fonts in index.html ) */
--font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system,
"Segoe UI", Roboto, sans-serif;
--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI",
Roboto, sans-serif;
/* Easing curves for hovers / reveals */
--ease-out: cubic-bezier(0.22, 1, 0.36, 1);
/*
— horizontal triple-line dividers between sections */
--section-rule-height: 7px;
--section-rule-gradient: linear-gradient(
to bottom,
rgba(15, 132, 255, 0.16) 0,
rgba(15, 132, 255, 0.16) 1.5px,
transparent 1.5px,
transparent 2.75px,
rgba(15, 132, 255, 0.22) 2.75px,
rgba(15, 132, 255, 0.22) 4.25px,
transparent 4.25px,
transparent 5.5px,
rgba(15, 132, 255, 0.16) 5.5px,
rgba(15, 132, 255, 0.16) 7px
);
}
/* ---------- Reset ---------- */
*,
*::before,
*::after {
box-sizing: border-box;
}
html {
-webkit-text-size-adjust: 100%;
scroll-behavior: smooth;
/* Offset anchor targets so sticky header (~80px + safe area) does not cover titles */
scroll-padding-top: calc(92px + env(safe-area-inset-top, 0px));
min-height: 100%;
/* Overscroll / bounce: match header tint so no harsh strip above the bar */
background-color: var(--color-secondary);
}
body {
margin: 0;
font-family: var(--font-sans);
font-size: 16px;
line-height: 1.6;
color: var(--color-ink);
background-color: transparent;
min-height: 100%;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-rendering: optimizeLegibility;
position: relative;
}
.header,
main,
.footer {
position: relative;
}
main {
background-color: var(--color-surface);
}
/* Visual separator: not a semantic rule — purely decorative (aria-hidden in HTML). */
.section-rule {
display: block;
/* Match .container content width: full width minus side padding, capped by container max-width */
width: calc(100% - 48px);
max-width: calc(var(--container) - 48px);
height: var(--section-rule-height);
margin-left: auto;
margin-right: auto;
margin-top: 0;
margin-bottom: 0;
border: 0;
padding: 0;
color: transparent;
background: var(--section-rule-gradient);
background-repeat: no-repeat;
background-size: 100% var(--section-rule-height);
border-radius: 999px;
opacity: 0.85;
}
img,
svg {
display: block;
max-width: 100%;
}
button,
input,
select,
textarea {
font: inherit;
color: inherit;
}
a {
color: inherit;
text-decoration: none;
}
/* The HTML5 hidden attribute must beat layout display rules. */
[hidden] {
display: none !important;
}
::selection {
background: rgba(15, 132, 255, 0.18);
color: var(--color-ink);
}
/* ---------- Layout primitives ---------- */
.container {
max-width: var(--container);
margin: 0 auto;
padding: 0 24px;
}
.container--narrow {
max-width: var(--container-narrow);
}
.section {
padding: 96px 0;
position: relative;
}
@media (max-width: 720px) {
.section {
padding: 64px 0;
}
}
/*
* Dividers sit between blocks; gap = padding-bottom above + padding-top below.
* Slightly less padding only next to .section-rule (rest of section rhythm unchanged).
*/
.hero:has(+ .section-rule) {
padding-bottom: 80px;
}
.section:has(+ .section-rule) {
padding-bottom: 80px;
}
.section-rule + .section {
padding-top: 80px;
}
@media (max-width: 720px) {
.hero:has(+ .section-rule) {
padding-bottom: 56px;
}
.section:has(+ .section-rule) {
padding-bottom: 56px;
}
.section-rule + .section {
padding-top: 56px;
}
}
/* ---------- Header (sticky; .is-scrolled from main.js) ---------- */
.header {
position: sticky;
top: 0;
z-index: 100;
padding-top: env(safe-area-inset-top, 0px);
background: rgba(240, 247, 255, 0.82);
backdrop-filter: saturate(140%) blur(14px);
-webkit-backdrop-filter: saturate(140%) blur(14px);
border-bottom: 1px solid transparent;
transition: border-color 0.2s ease, background 0.2s ease;
}
.header.is-scrolled {
border-bottom-color: var(--color-border);
background: rgba(240, 247, 255, 0.94);
}
.header__inner {
display: flex;
align-items: center;
gap: 20px;
height: 80px;
}
.header .wordmark {
gap: 10px;
flex-shrink: 0;
}
.header__cta {
flex-shrink: 0;
}
.nav {
display: flex;
align-items: center;
justify-content: center;
gap: 28px;
flex: 1;
min-width: 0;
}
@media (max-width: 820px) {
.nav {
display: none;
}
.header__cta {
margin-left: auto;
}
}
.wordmark {
display: inline-flex;
align-items: center;
gap: 10px;
font-family: var(--font-display);
font-weight: 700;
font-size: 22px;
letter-spacing: -0.02em;
color: var(--color-ink);
}
.wordmark__logo {
width: auto;
height: 40px;
flex-shrink: 0;
object-fit: contain;
}
.wordmark__text {
color: var(--color-primary);
}
.nav__link {
font-size: 15px;
font-weight: 500;
color: var(--color-muted);
transition: color 0.15s ease;
position: relative;
}
.nav__link:hover {
color: var(--color-ink);
}
/* ---------- Buttons ---------- */
.btn {
display: inline-flex;
align-items: center;
justify-content: center;
gap: 8px;
padding: 12px 20px;
border-radius: var(--radius-md);
font-size: 15px;
font-weight: 600;
font-family: var(--font-sans);
letter-spacing: -0.005em;
border: 1px solid transparent;
cursor: pointer;
transition: transform 0.15s var(--ease-out),
background-color 0.15s ease, color 0.15s ease,
box-shadow 0.2s ease, border-color 0.15s ease;
white-space: nowrap;
user-select: none;
position: relative;
text-decoration: none;
}
.btn:focus-visible {
outline: none;
box-shadow: var(--shadow-focus);
}
.btn--primary {
background: var(--color-primary);
color: #fff;
box-shadow: 0 1px 0 rgba(255, 255, 255, 0.15) inset,
0 1px 2px rgba(8, 90, 176, 0.25);
}
.btn--primary:hover {
background: var(--color-primary-600);
transform: translateY(-1px);
box-shadow: 0 1px 0 rgba(255, 255, 255, 0.18) inset,
0 6px 18px rgba(15, 132, 255, 0.25);
}
.btn--primary:active {
transform: translateY(0);
background: var(--color-primary-700);
}
.btn--ghost {
background: var(--color-surface);
color: var(--color-ink);
border-color: var(--color-border);
box-shadow: var(--shadow-xs);
}
.btn--ghost:hover {
border-color: var(--color-ink);
background: var(--color-bg-soft);
transform: translateY(-1px);
}
.btn--sm {
padding: 9px 16px;
font-size: 14px;
border-radius: 9px;
}
.btn--block {
width: 100%;
}
/* .is-loading toggled during form POST — hides label, shows .btn__spinner */
.btn[disabled],
.btn.is-loading {
cursor: not-allowed;
opacity: 0.85;
pointer-events: none;
}
.btn__spinner {
display: none;
width: 16px;
height: 16px;
border-radius: 50%;
border: 2px solid rgba(255, 255, 255, 0.4);
border-top-color: #fff;
animation: spin 0.7s linear infinite;
}
.btn.is-loading .btn__label {
visibility: hidden;
}
.btn.is-loading .btn__spinner {
display: inline-block;
position: absolute;
}
@keyframes spin {
to {
transform: rotate(360deg);
}
}
/* ---------- Hero ---------- */
.hero {
position: relative;
padding: 88px 0 96px;
overflow: hidden;
background: transparent;
}
@media (max-width: 720px) {
.hero {
padding: 56px 0 64px;
}
}
.hero__inner {
text-align: center;
display: flex;
flex-direction: column;
align-items: center;
}
.hero__copy {
width: 100%;
max-width: 50rem;
margin: 0 auto;
text-align: center;
}
.hero__title {
font-family: var(--font-display);
font-weight: 600;
font-size: clamp(36px, 6.4vw, 72px);
line-height: 1.08;
letter-spacing: -0.035em;
margin: 0 0 22px;
color: var(--color-ink);
}
.hero__sub {
font-size: clamp(16px, 1.6vw, 19px);
line-height: 1.55;
color: var(--color-muted);
margin: 0 0 36px;
}
.hero__ctas {
display: flex;
gap: 12px;
flex-wrap: wrap;
justify-content: center;
}
/* ---------- Section heads ---------- */
.section__head {
max-width: 720px;
margin: 0 0 56px;
}
.section__head--center {
margin-left: auto;
margin-right: auto;
text-align: center;
}
.eyebrow {
display: inline-block;
font-size: 13px;
font-weight: 600;
letter-spacing: 0.1em;
text-transform: uppercase;
color: var(--color-primary);
margin-bottom: 14px;
}
@media (min-width: 721px) {
.eyebrow {
font-size: 14px;
letter-spacing: 0.11em;
}
}
.section__title {
font-family: var(--font-display);
font-weight: 600;
font-size: clamp(30px, 4vw, 44px);
line-height: 1.1;
letter-spacing: -0.025em;
margin: 0 0 16px;
color: var(--color-ink);
}
.section__sub {
font-size: 17px;
line-height: 1.55;
color: var(--color-muted);
margin: 0;
max-width: 56ch;
}
.section__head--center .section__sub {
margin-left: auto;
margin-right: auto;
}
/* ---------- Cards (candidates) ---------- */
.cards {
display: grid;
grid-template-columns: repeat(3, minmax(0, 1fr));
gap: 18px;
}
@media (max-width: 880px) {
.cards {
grid-template-columns: 1fr;
}
}
.card {
position: relative;
background: var(--color-bg);
border: 1px solid var(--color-border);
border-radius: var(--radius-lg);
padding: 28px 26px 30px;
transition: border-color 0.2s ease, transform 0.2s var(--ease-out),
box-shadow 0.25s ease;
}
.card:hover {
border-color: var(--color-border-strong);
transform: translateY(-2px);
box-shadow: var(--shadow-md);
}
.card__num {
display: inline-flex;
align-items: center;
justify-content: center;
width: 32px;
height: 32px;
border-radius: 8px;
background: var(--color-secondary);
color: var(--color-primary);
font-family: var(--font-display);
font-weight: 600;
font-size: 13px;
margin-bottom: 22px;
}
.card__title {
font-family: var(--font-display);
font-weight: 600;
font-size: 19px;
letter-spacing: -0.015em;
margin: 0 0 10px;
color: var(--color-ink);
}
.card__body {
font-size: 15px;
line-height: 1.6;
color: var(--color-muted);
margin: 0;
}
/* ---------- Form panel (#intake-form + #success-state swap) ---------- */
.panel {
background: var(--color-bg);
border: 1px solid var(--color-border);
border-radius: var(--radius-xl);
padding: 32px;
box-shadow: var(--shadow-lg);
position: relative;
}
@media (max-width: 540px) {
.panel {
padding: 24px 20px;
border-radius: 16px;
}
}
.form {
display: flex;
flex-direction: column;
gap: 24px;
}
.field {
display: flex;
flex-direction: column;
gap: 7px;
}
.label {
font-size: 14px;
font-weight: 600;
color: var(--color-ink);
letter-spacing: -0.005em;
}
.hint {
/* Pull toward the label above (only hint on the page; keeps chips spacing via .field gap) */
margin: -7px 0 0;
font-size: 12px;
color: var(--color-muted);
}
.input {
width: 100%;
background: var(--color-bg);
border: 1px solid var(--color-border);
border-radius: var(--radius-md);
padding: 11px 13px;
font-size: 14px;
color: var(--color-ink);
transition: border-color 0.15s ease, box-shadow 0.15s ease,
background 0.15s ease;
}
.input::placeholder {
color: var(--color-muted-2);
}
.input:hover {
border-color: var(--color-border-strong);
}
.input:focus {
outline: none;
border-color: var(--color-primary);
box-shadow: var(--shadow-focus);
}
.input.has-error {
border-color: var(--color-error);
}
.input.has-error:focus {
box-shadow: 0 0 0 4px rgba(209, 45, 45, 0.18);
}
.error {
margin: 0;
font-size: 13px;
color: var(--color-error);
min-height: 0;
transition: min-height 0.15s ease;
}
.error:not(:empty) {
min-height: 16px;
}
.form-error {
margin: 0;
font-size: 14px;
color: var(--color-error);
text-align: center;
}
/* Chips: checkbox or radio, visually hidden; :has() for checked style */
.chips {
display: flex;
flex-wrap: wrap;
gap: 7px;
}
.chip {
position: relative;
display: inline-flex;
align-items: center;
padding: 8px 13px;
border-radius: var(--radius-pill);
background: var(--color-bg);
border: 1px solid var(--color-border);
font-size: 13px;
font-weight: 500;
color: var(--color-ink);
cursor: pointer;
transition: background 0.15s ease, border-color 0.15s ease,
color 0.15s ease, transform 0.15s var(--ease-out);
user-select: none;
}
.chip input {
position: absolute;
opacity: 0;
pointer-events: none;
width: 1px;
height: 1px;
}
.chip:hover {
border-color: var(--color-border-strong);
transform: translateY(-1px);
}
.chip:has(input:focus-visible) {
box-shadow: var(--shadow-focus);
border-color: var(--color-primary);
}
.chip:has(input:checked) {
background: var(--color-primary);
border-color: var(--color-primary);
color: #fff;
}
.chip:has(input:checked):hover {
background: var(--color-primary-600);
border-color: var(--color-primary-600);
}
.chips.has-error {
padding: 4px;
margin: -4px;
border-radius: var(--radius-md);
outline: 2px solid var(--color-error);
outline-offset: 2px;
}
select.input {
cursor: pointer;
-webkit-appearance: none;
appearance: none;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230f84ff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
background-repeat: no-repeat;
background-position: right 12px center;
padding-right: 40px;
}
/*
* Honeypot (.hp): off-screen so humans never see it; bots that fill all inputs
* trigger discard on the server (see candidate-intake.ts).
*/
.hp {
position: absolute;
left: -10000px;
top: auto;
width: 1px;
height: 1px;
overflow: hidden;
}
/* Success state */
.success {
text-align: center;
padding: 24px 8px 8px;
display: flex;
flex-direction: column;
align-items: center;
gap: 14px;
animation: rise 0.4s var(--ease-out) both;
}
@keyframes rise {
from {
opacity: 0;
transform: translateY(8px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
.success__check {
width: 48px;
height: 48px;
border-radius: 50%;
background: var(--color-secondary);
color: var(--color-primary);
display: inline-flex;
align-items: center;
justify-content: center;
}
.success__check svg {
width: 26px;
height: 26px;
}
.success__title {
font-family: var(--font-display);
font-weight: 600;
font-size: 22px;
letter-spacing: -0.015em;
margin: 0;
}
/* ---------- For founders ---------- */
.founders {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 64px;
align-items: start;
position: relative;
}
@media (max-width: 880px) {
.founders {
grid-template-columns: 1fr;
gap: 40px;
}
}
.founders__copy,
.founders__list {
position: relative;
z-index: 1;
}
.founders__lead {
font-size: 17px;
line-height: 1.6;
color: var(--color-muted);
margin: 0 0 24px;
max-width: 44ch;
}
/* Mail row in founders block: same layout as .story-profile__linkedin, brand colors. */
.founders__mailto.story-profile__linkedin {
justify-content: flex-start;
color: var(--color-primary);
}
.founders__mailto.story-profile__linkedin:hover {
color: var(--color-primary-700);
}
.founders__mailto.story-profile__linkedin span {
overflow-wrap: anywhere;
text-align: left;
}
.founders__list {
list-style: none;
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
gap: 4px;
border-top: 1px solid var(--color-border);
}
.founders__list li {
display: flex;
gap: 18px;
padding: 22px 4px;
border-bottom: 1px solid var(--color-border);
}
.founders__step {
flex-shrink: 0;
width: 30px;
height: 30px;
display: inline-flex;
align-items: center;
justify-content: center;
border-radius: 8px;
background: var(--color-secondary);
color: var(--color-primary);
font-family: var(--font-display);
font-weight: 600;
font-size: 13px;
}
.founders__list h4 {
font-family: var(--font-display);
font-weight: 600;
font-size: 17px;
letter-spacing: -0.015em;
margin: 2px 0 6px;
color: var(--color-ink);
}
.founders__list p {
font-size: 14.5px;
line-height: 1.55;
color: var(--color-muted);
margin: 0;
}
/* ---------- Our story (intro + two founder columns) ---------- */
.story-intro {
max-width: 52ch;
margin: 0 auto;
text-align: center;
}
.story-intro p {
margin: 0 0 1rem;
font-size: 17px;
line-height: 1.6;
color: var(--color-muted);
}
.story-intro p:last-child {
margin-bottom: 0;
}
.story-profiles {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
gap: 32px 40px;
max-width: 880px;
margin: 0 auto;
}
@media (max-width: 640px) {
.story-profiles {
grid-template-columns: 1fr;
gap: 36px;
}
}
.story-profile {
display: flex;
flex-direction: column;
align-items: center;
text-align: center;
padding: 28px 22px 30px;
border-radius: var(--radius-lg);
border: 1px solid var(--color-border);
background: var(--color-bg);
box-shadow: var(--shadow-xs);
transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.story-profile:hover {
border-color: var(--color-border-strong);
box-shadow: var(--shadow-sm);
}
.story-profile__photo {
width: 112px;
height: 112px;
border-radius: 50%;
object-fit: cover;
margin: 0 0 18px;
box-shadow: 0 0 0 3px rgba(15, 132, 255, 0.12);
}
.story-profile__body {
width: 100%;
max-width: 38ch;
}
.story-profile__name {
font-family: var(--font-display);
font-weight: 600;
font-size: 19px;
letter-spacing: -0.02em;
margin: 0 0 12px;
color: var(--color-ink);
}
.story-profile__bio {
margin: 0 0 18px;
font-size: 15px;
line-height: 1.58;
color: var(--color-muted);
text-align: center;
}
.story-profile__linkedin {
display: inline-flex;
align-items: center;
justify-content: center;
gap: 8px;
font-size: 15px;
font-weight: 600;
color: #0a66c2;
text-decoration: none;
transition: color 0.15s ease, transform 0.15s var(--ease-out);
}
.story-profile__linkedin:hover {
color: #004182;
transform: translateY(-1px);
}
.story-profile__linkedin:focus-visible {
outline: none;
border-radius: 6px;
box-shadow: var(--shadow-focus);
}
.story-profile__linkedin-logo {
flex-shrink: 0;
display: block;
}
/* ---------- Footer (match .header surface: soft blue tint + frosted glass) ---------- */
.footer {
padding: 20px 0 calc(16px + env(safe-area-inset-bottom, 0px));
border-top: none;
background: rgba(240, 247, 255, 0.82);
backdrop-filter: saturate(140%) blur(14px);
-webkit-backdrop-filter: saturate(140%) blur(14px);
}
.footer__inner {
text-align: center;
}
.footer__legal {
font-size: 13px;
color: var(--color-muted);
margin: 0;
text-align: center;
}
.footer__sep {
margin: 0 0.35em;
}
.footer__link {
color: inherit;
text-decoration: underline;
text-underline-offset: 2px;
}
.footer__link:hover {
color: var(--color-ink);
}
.footer__link:focus-visible {
outline: none;
border-radius: 4px;
box-shadow: var(--shadow-focus);
}
/*
* ---------- Reveal on scroll ----------
* main.js adds .reveal then .is-visible when the block enters the viewport.
*/
.reveal {
opacity: 0;
transform: translateY(12px);
transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.is-visible {
opacity: 1;
transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
*,
*::before,
*::after {
animation-duration: 0.001ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.001ms !important;
scroll-behavior: auto !important;
}
.reveal {
opacity: 1;
transform: none;
}
}