/* ==========================================================================
   Fonts (self-hosted)
   ========================================================================== */
@font-face {
    font-family: "Plus Jakarta Sans";
    src: url("../fonts/plus-jakarta-sans-500.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Plus Jakarta Sans";
    src: url("../fonts/plus-jakarta-sans-700.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Plus Jakarta Sans";
    src: url("../fonts/plus-jakarta-sans-800.woff2") format("woff2");
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

/* ==========================================================================
   Variables
   ========================================================================== */
:root {
    --color-primary: #8a2be2;
    --color-accent: #f511ea;
    --color-dark: #0d0a12;
    --color-white: #ffffff;
    --color-surface: #f9f6fd;
    --color-text: #0d0a12;
    --color-text-muted: #5a5266;
    --color-border: rgba(13, 10, 18, 0.12);
    --gradient-brand: linear-gradient(110deg, var(--color-primary) 0%, var(--color-accent) 100%);

    --font-body: "Plus Jakarta Sans", "Helvetica Neue", Arial, sans-serif;

    --radius: 0.75rem;
    --radius-pill: 999px;
    --gutter: clamp(1rem, 4vw, 3rem);
    --max-width: 80rem;
    --header-height: 4.5rem;

    --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ==========================================================================
   Reset & base
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body,
h1,
h2,
h3,
p,
ul,
figure {
    margin: 0;
}

ul {
    padding: 0;
    list-style: none;
}

html {
    -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    min-height: 100vh;
    background-color: var(--color-white);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 100;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    background-color: var(--color-dark);
    color: var(--color-white);
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: none;
}

/* ==========================================================================
   Shared typography
   ========================================================================== */
.eyebrow {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 2.5rem;
    height: 2px;
    background: var(--gradient-brand);
}

.eyebrow-center {
    justify-content: center;
}

.eyebrow-center::after {
    content: "";
    width: 2.5rem;
    height: 2px;
    background: var(--gradient-brand);
}

.text-gradient {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 3.25rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-pill);
    background: var(--gradient-brand);
    background-size: 160% 100%;
    background-position: 0% 50%;
    color: var(--color-white);
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    box-shadow: 0 0.75rem 1.75rem -0.75rem rgba(245, 17, 234, 0.6);
    transition: background-position 400ms var(--ease-smooth), transform 200ms ease, box-shadow 200ms ease;
}

.button svg {
    width: 1rem;
    height: 1rem;
    transition: transform 200ms ease;
}

.button:hover {
    background-position: 100% 50%;
    transform: translateY(-2px);
    box-shadow: 0 1rem 2rem -0.75rem rgba(245, 17, 234, 0.75);
}

.button:hover svg {
    transform: translateX(3px);
}

.button-ghost {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.7);
    box-shadow: none;
    transition: background-color 400ms ease, border-color 400ms ease, color 400ms ease, transform 200ms ease;
}

.button-ghost:hover {
    background: var(--color-white);
    color: var(--color-primary);
    box-shadow: none;
}

.button-block {
    width: 100%;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-input {
    width: 100%;
    min-height: 3.25rem;
    padding: 0.875rem 1.125rem;
    border: 2px solid transparent;
    border-radius: var(--radius);
    background-color: var(--color-white);
    color: var(--color-text);
    font-size: 1rem;
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(245, 17, 234, 0.2);
}

.form-select {
    appearance: none;
    padding-right: 3rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%238a2be2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.125rem center;
    background-size: 1rem;
    cursor: pointer;
}

.form-select:invalid {
    color: var(--color-text-muted);
}

.form-textarea {
    min-height: 6rem;
    resize: vertical;
}

/* ==========================================================================
   Top bar
   ========================================================================== */
.top-bar {
    background: var(--gradient-brand);
    color: var(--color-white);
    font-size: 0.8125rem;
}

.top-bar-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.5rem var(--gutter);
}

.top-bar-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.25rem 1.5rem;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.top-bar-item svg {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

.top-bar-item a:hover {
    text-decoration: underline;
}

.top-bar-item-email,
.top-bar-social {
    display: none;
}

.top-bar-social a {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    transition: background-color 200ms ease;
}

.top-bar-social a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.top-bar-social svg {
    width: 1rem;
    height: 1rem;
}

@media (min-width: 48rem) {
    .top-bar-inner {
        justify-content: space-between;
    }

    .top-bar-item-email {
        display: flex;
    }

    .top-bar-social {
        display: flex;
        gap: 0.25rem;
    }
}

/* ==========================================================================
   Header & navigation
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: var(--color-white);
    box-shadow: 0 1px 0 var(--color-border);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    max-width: var(--max-width);
    min-height: var(--header-height);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.logo-mark {
    width: 2.75rem;
    height: 2.75rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-dark);
    white-space: nowrap;
}

.logo-text small {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.02em;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0.625rem;
    border-radius: var(--radius);
}

.nav-toggle-bar {
    height: 2px;
    border-radius: 2px;
    background-color: var(--color-dark);
    transition: transform 250ms ease, opacity 250ms ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(4) {
    transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: grid;
    gap: 1.25rem;
    padding: 1.25rem var(--gutter) 1.75rem;
    background-color: var(--color-white);
    box-shadow: 0 1.5rem 2rem -1rem rgba(13, 10, 18, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: opacity 250ms ease, transform 250ms ease, visibility 250ms;
}

.site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.nav-list {
    display: grid;
}

.nav-link {
    position: relative;
    display: block;
    padding: 0.75rem 0;
    font-weight: 700;
    font-size: 0.9375rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-dark);
    border-bottom: 1px solid var(--color-border);
    transition: color 200ms ease;
}

.nav-link:hover,
.nav-link.is-current {
    color: var(--color-primary);
}

@media (min-width: 64rem) {
    .site-header-inner {
        min-height: 5.5rem;
    }

    .nav-toggle {
        display: none;
    }

    .site-nav {
        position: static;
        display: flex;
        align-items: center;
        gap: 2rem;
        padding: 0;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .nav-list {
        display: flex;
        gap: clamp(1rem, 2vw, 2rem);
    }

    .nav-link {
        padding: 0.5rem 0;
        border-bottom: 0;
    }

    .nav-link::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 2px;
        background: var(--gradient-brand);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 300ms var(--ease-smooth);
    }

    .nav-link:hover::after,
    .nav-link.is-current::after {
        transform: scaleX(1);
    }
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
    padding: clamp(4rem, 9vw, 7rem) 0;
    scroll-margin-top: var(--header-height);
}

.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.section-header {
    display: grid;
    gap: 1rem;
    max-width: 44rem;
    margin: 0 auto clamp(2.5rem, 5vw, 4rem);
    text-align: center;
}

.section-header .eyebrow {
    color: var(--color-primary);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-dark);
}

.section-intro {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    color: var(--color-text-muted);
}