/* =========================================================
   ProofAlign — Global Styles
   ========================================================= */

:root {
    --color-primary: #155eef;
    --color-primary-dark: #0f46b8;
    --color-heading: #101828;
    --color-text: #344054;
    --color-muted: #667085;
    --color-border: #d0d5dd;
    --color-surface: #ffffff;
    --color-surface-soft: #f8fafc;
    --color-header: #f3f7fc;
    --color-footer: #101828;

    --container-width: 1120px;
    --content-width: 820px;

    --radius-small: 8px;
    --radius-medium: 12px;

    --shadow-card: 0 8px 24px rgba(16, 24, 40, 0.06);
}

/* Reset */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-surface);
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    color: var(--color-primary-dark);
}

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

button,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 3px solid rgba(21, 94, 239, 0.3);
    outline-offset: 3px;
}

/* Layout */

.container {
    width: min(var(--container-width), calc(100% - 40px));
    margin-inline: auto;
}

.content-container {
    width: min(var(--content-width), calc(100% - 40px));
    margin-inline: auto;
}

main {
    flex: 1;
}

.section {
    padding: 72px 0;
}

.section-soft {
    background: var(--color-surface-soft);
}

.section-heading {
    max-width: 720px;
    margin: 0 auto 36px;
    text-align: center;
}

.section-heading h2 {
    margin: 0 0 12px;
    font-size: clamp(28px, 4vw, 38px);
    line-height: 1.2;
    color: var(--color-heading);
}

.section-heading p {
    margin: 0;
    color: var(--color-muted);
}

/* Typography */

h1,
h2,
h3,
h4 {
    margin-top: 0;
    color: var(--color-heading);
    line-height: 1.2;
}

h1 {
    font-size: clamp(38px, 6vw, 58px);
}

h2 {
    font-size: clamp(28px, 4vw, 40px);
}

h3 {
    font-size: 21px;
}

p {
    margin-top: 0;
    margin-bottom: 18px;
}

/* Header */

.site-header {
    position: relative;
    z-index: 100;
    background: var(--color-header);
    border-bottom: 1px solid #e4e7ec;
}

.header-inner {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.site-brand {
    flex-shrink: 0;
    font-size: 21px;
    font-weight: 700;
    color: var(--color-primary);
}

.site-brand:hover {
    color: var(--color-primary-dark);
}

.primary-navigation {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 24px;
}

.primary-navigation a {
    position: relative;
    padding: 26px 0 23px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-heading);
    white-space: nowrap;
}

.primary-navigation a:hover {
    color: var(--color-primary);
}

.primary-navigation a[aria-current="page"] {
    color: var(--color-primary);
}

.primary-navigation a[aria-current="page"]::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 17px;
    left: 0;
    height: 2px;
    background: var(--color-primary);
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    background: var(--color-surface);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    background: var(--color-heading);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero */

.hero {
    padding: 92px 0;
}

.hero-inner {
    max-width: 800px;
}

.hero h1 {
    max-width: 760px;
    margin-bottom: 22px;
}

.hero p {
    max-width: 680px;
    margin-bottom: 30px;
    font-size: 18px;
    color: var(--color-muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* Buttons */

.button {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    padding: 11px 22px;
    border: 1px solid transparent;
    border-radius: var(--radius-small);
    font-weight: 700;
    line-height: 1.2;
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #ffffff;
    background: var(--color-primary);
}

.button-primary:hover {
    color: #ffffff;
    background: var(--color-primary-dark);
}

.button-secondary {
    color: var(--color-heading);
    border-color: var(--color-border);
    background: var(--color-surface);
}

.button-secondary:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Cards */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.card {
    padding: 28px;
    border: 1px solid #e4e7ec;
    border-radius: var(--radius-medium);
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
}

.card h3 {
    margin-bottom: 12px;
}

.card p:last-child {
    margin-bottom: 0;
}

/* Legal and standard internal pages */

.page-hero {
    padding: 64px 0 28px;
}

.page-hero h1 {
    margin-bottom: 12px;
    font-size: clamp(34px, 5vw, 48px);
}

.page-hero p {
    max-width: 700px;
    color: var(--color-muted);
}

.page-content {
    padding: 28px 0 80px;
}

.legal-content h2 {
    margin-top: 42px;
    margin-bottom: 14px;
    font-size: 26px;
}

.legal-content h3 {
    margin-top: 30px;
    margin-bottom: 10px;
}

.legal-content ul,
.legal-content ol {
    margin: 0 0 22px;
    padding-left: 24px;
}

.legal-content li {
    margin-bottom: 8px;
}

/* Reviews */

.review-list {
    display: grid;
    gap: 24px;
}

.review-card {
    padding: 30px;
    border: 1px solid #e4e7ec;
    border-radius: var(--radius-medium);
    background: var(--color-surface);
}

.review-card h2 {
    margin-bottom: 12px;
    font-size: 26px;
}

.review-card p:last-child {
    margin-bottom: 0;
}

/* Contact */

.contact-card {
    max-width: 720px;
    padding: 34px;
    border: 1px solid #e4e7ec;
    border-radius: var(--radius-medium);
    background: var(--color-surface-soft);
}

.contact-card h2 {
    margin-bottom: 14px;
}

.contact-email {
    display: inline-block;
    margin-top: 8px;
    font-size: 19px;
    font-weight: 700;
}

/* Footer */

.site-footer {
    margin-top: auto;
    color: #ffffff;
    background: var(--color-footer);
}

.footer-inner {
    padding-top: 38px;
    padding-bottom: 38px;
    text-align: center;
}

.copyright {
    margin-bottom: 16px;
    font-size: 14px;
}

.footer-navigation {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 0;
    margin-bottom: 14px;
}

.footer-navigation a {
    padding: 0 14px;
    border-right: 1px solid rgba(255, 255, 255, 0.45);
    font-size: 14px;
    color: #ffffff;
}

.footer-navigation a:last-child {
    border-right: 0;
}

.footer-navigation a:hover,
.footer-contact a:hover {
    color: #b9d0ff;
}

.footer-contact {
    margin-bottom: 0;
    font-size: 14px;
}

.footer-contact a {
    color: #ffffff;
}

/* Mobile navigation */

@media (max-width: 940px) {
    .header-inner {
        min-height: 68px;
        flex-wrap: wrap;
        padding-top: 12px;
        padding-bottom: 12px;
    }

    .menu-toggle {
        display: block;
    }

    .primary-navigation {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px 0 12px;
    }

    .primary-navigation a {
        padding: 12px 4px;
        border-bottom: 1px solid #e4e7ec;
    }

    .primary-navigation a:last-child {
        border-bottom: 0;
    }

    .primary-navigation a[aria-current="page"]::after {
        display: none;
    }

    .js .primary-navigation {
        display: none;
    }

    .js .primary-navigation.is-open {
        display: flex;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .container,
    .content-container {
        width: min(100% - 28px, var(--container-width));
    }

    .section {
        padding: 52px 0;
    }

    .hero {
        padding: 64px 0;
    }

    .hero p {
        font-size: 16px;
    }

    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .page-hero {
        padding: 48px 0 20px;
    }

    .page-content {
        padding-bottom: 60px;
    }

    .card,
    .review-card,
    .contact-card {
        padding: 22px;
    }

    .footer-navigation {
        align-items: center;
        flex-direction: column;
    }

    .footer-navigation a {
        padding: 2px 0;
        border-right: 0;
    }
}