:root {
    --bg: #f7eef5;
    --bg-soft: #fbf5fa;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-strong: rgba(255, 255, 255, 0.92);
    --border: rgba(138, 79, 125, 0.18);

    --text: #2f2430;
    --text-soft: #5f4a5d;
    --heading: #4b3248;
    --accent: #8a4f7d;
    --accent-hover: #6f3f64;
    --accent-soft: #ead6e7;

    --shadow-sm: 0 8px 20px rgba(91, 64, 85, 0.08);
    --shadow-md: 0 16px 40px rgba(91, 64, 85, 0.12);

    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;

    --container: 1120px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(255, 193, 227, 0.35), transparent 28%),
        radial-gradient(circle at top right, rgba(193, 167, 232, 0.28), transparent 24%),
        linear-gradient(180deg, #fdf8fc 0%, #f6edf5 100%);
    line-height: 1.65;
}

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition), opacity var(--transition);
}

a:hover,
a:focus-visible {
    color: var(--accent-hover);
}

button,
input,
textarea {
    font: inherit;
}

.skip-link {
    position: absolute;
    left: 16px;
    top: -48px;
    background: var(--heading);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    z-index: 1000;
    transition: top var(--transition);
}

.skip-link:focus {
    top: 16px;
}

.site-header,
.section,
.site-footer {
    width: min(calc(100% - 2rem), var(--container));
    margin-inline: auto;
}

.site-header {
    margin-top: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.brand-name {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--heading);
    letter-spacing: 0.04em;
}

.brand-role {
    margin: 0.2rem 0 0;
    color: var(--text-soft);
    font-size: 0.95rem;
}

.hero {
    padding: 2rem 0 1rem;
}

.hero-content {
    max-width: 760px;
}

.hero-kicker,
.section-kicker {
    margin: 0 0 0.5rem;
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0;
    font-size: clamp(2.4rem, 5vw, 4rem);
    line-height: 1.08;
    color: var(--heading);
}

.hero-subtitle {
    margin: 1rem 0 0;
    max-width: 58ch;
    font-size: 1.08rem;
    color: var(--text-soft);
}

.hero-message {
    margin: 1.25rem 0 0;
    padding: 1rem 1.2rem;
    border-left: 4px solid var(--accent);
    background: rgba(255, 255, 255, 0.55);
    border-radius: var(--radius-sm);
    color: var(--text);
    min-height: 3.5rem;
}

.hero-links,
.header-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-links {
    margin-top: 1.5rem;
}

.button,
.contact-form button,
.inline-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.85rem 1.2rem;
    border: 1px solid transparent;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition:
        background-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
}

.button:hover,
.button:focus-visible,
.contact-form button:hover,
.contact-form button:focus-visible,
.inline-button:hover,
.inline-button:focus-visible {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.button-secondary {
    background: transparent;
    color: var(--accent);
    border-color: var(--border);
}

.button-secondary:hover,
.button-secondary:focus-visible {
    background: rgba(138, 79, 125, 0.08);
    color: var(--accent-hover);
}

.inline-button {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--accent);
    justify-content: flex-start;
}

.main-nav {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.main-nav ul,
.footer-links,
.clean-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1.2rem;
}

.main-nav a {
    position: relative;
    display: inline-block;
    padding: 0.2rem 0;
    color: var(--text-soft);
    font-weight: 600;
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.15rem;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a.active::after {
    transform: scaleX(1);
}

.main-nav a.active {
    color: var(--heading);
}

main {
    padding: 1rem 0 3rem;
}

.section {
    margin-top: 1.25rem;
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
}

.section-header {
    margin-bottom: 1.5rem;
}

.section h2 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--heading);
    line-height: 1.15;
}

.section h3 {
    margin-top: 0;
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
    color: var(--heading);
}

.content-card {
    padding: 1.4rem;
    border: 1px solid rgba(138, 79, 125, 0.12);
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    box-shadow: var(--shadow-sm);
}

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

.grid {
    display: grid;
    gap: 1.25rem;
}

.grid.two-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.clean-list li + li {
    margin-top: 0.75rem;
}

.certificate-group + .certificate-group,
.certificate-group + .content-card {
    margin-top: 1.5rem;
}

.certificate-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.certificate {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    background: #fff;
}

.contact-layout {
    align-items: start;
}

.external-links li + li {
    margin-top: 0.6rem;
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.form-group {
    display: grid;
    gap: 0.45rem;
}

.contact-form label {
    font-weight: 600;
    color: var(--heading);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(138, 79, 125, 0.22);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.95);
    color: var(--text);
    transition:
        border-color var(--transition),
        box-shadow var(--transition),
        background-color var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(138, 79, 125, 0.12);
    background: #fff;
}

.contact-form textarea {
    min-height: 160px;
    resize: vertical;
}

.copy-feedback {
    min-height: 1.2rem;
    margin-top: 0.35rem;
    color: var(--accent);
    font-size: 0.95rem;
    opacity: 0;
    transition: opacity var(--transition);
}

.copy-feedback.show {
    opacity: 1;
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity 0.55s ease,
        transform 0.55s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.site-footer {
    margin-top: 1.25rem;
    margin-bottom: 2rem;
    padding: 1.5rem 2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.site-footer p {
    margin: 0;
    color: var(--text-soft);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links a {
    font-weight: 600;
}

@media (max-width: 900px) {
    .grid.two-columns,
    .certificate-row {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        max-width: 12ch;
    }

    .site-footer {
        align-items: flex-start;
    }
}

@media (max-width: 680px) {
    .site-header,
    .section,
    .site-footer {
        width: min(calc(100% - 1rem), var(--container));
    }

    .site-header,
    .section,
    .site-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .header-top {
        flex-direction: column;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0.65rem;
    }

    .hero {
        padding-top: 1rem;
    }

    .hero-subtitle,
    .hero-message {
        font-size: 1rem;
    }

    .button,
    .button-secondary,
    .contact-form button {
        width: 100%;
    }

    .hero-links,
    .header-actions {
        width: 100%;
    }
}