:root {
    --color-primary: #302586;
    --color-primary-dark: #241a6f;
    --color-primary-soft: #ece9ff;

    --color-accent: #f2b91f;
    --color-accent-dark: #d9a30c;

    --color-background: #fffbed;
    --color-surface: #ffffff;
    --color-surface-muted: #f8f6ff;

    --color-text: #27223f;
    --color-text-muted: #625e70;
    --color-border: #dedaf0;

    --shadow-card: 0 18px 45px rgb(41 32 91 / 10%);
    --shadow-button: 0 12px 28px rgb(48 37 134 / 18%);

    --radius-small: 10px;
    --radius-medium: 18px;
    --radius-large: 28px;

    --container-width: 1180px;
}


/* Reset */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-family:
        Inter,
        Arial,
        sans-serif;
    line-height: 1.6;
}

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

a {
    color: inherit;
}

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


/* Typography */

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    line-height: 1.15;
}

h1 {
    max-width: 760px;
    margin-bottom: 24px;
    color: var(--color-primary);
    font-size: clamp(2.6rem, 6vw, 5.25rem);
}

h2 {
    margin-bottom: 40px;
    color: var(--color-primary);
    font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
    color: var(--color-primary);
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--color-primary);
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}


/* Layout */

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

.section {
    padding-block: 96px;
}

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


/* Header */

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    border-bottom: 1px solid rgb(48 37 134 / 8%);
    background: rgb(255 251 237 / 92%);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    display: flex;
    min-height: 88px;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}

.site-logo img {
    width: auto;
    height: 58px;
}


/* Navigation */

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.main-nav a:not(.button) {
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
    transition: color 160ms ease;
}

.main-nav a:not(.button):hover,
.main-nav a:not(.button):focus-visible {
    color: var(--color-primary-dark);
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 10px;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    height: 2px;
    margin: 6px 0;
    border-radius: 999px;
    background: var(--color-primary);
}


/* Footer */

.site-footer {
    padding-block: 48px;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.site-footer p {
    margin-bottom: 0;
}


/* Responsive */

@media (max-width: 820px) {
    .container {
        width: min(
            calc(100% - 28px),
            var(--container-width)
        );
    }

    .site-header__inner {
        min-height: 72px;
    }

    .site-logo img {
        height: 48px;
    }

    .nav-toggle {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 72px;
        right: 14px;
        left: 14px;
        display: none;
        align-items: stretch;
        padding: 20px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-medium);
        background: var(--color-surface);
        box-shadow: var(--shadow-card);
        flex-direction: column;
        gap: 16px;
    }

    .main-nav.is-open {
        display: flex;
    }

    .main-nav a:not(.button) {
        padding: 8px 4px;
    }

    .section {
        padding-block: 64px;
    }

    .site-footer__inner {
        align-items: flex-start;
        flex-direction: column;
    }
}


/* Buttons – necháváme úplně na konci kvůli specificitě */

.button,
.button:visited {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-small);
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 800;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition:
        transform 160ms ease,
        box-shadow 160ms ease,
        background-color 160ms ease,
        border-color 160ms ease,
        color 160ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
    border-color: var(--color-accent);
    background: var(--color-primary-dark);
    color: #ffffff;
    box-shadow: var(--shadow-button);
}

.button--small {
    min-height: 42px;
    padding: 8px 16px;
}

.button--secondary,
.button--secondary:visited {
    border-color: var(--color-primary);
    background: transparent;
    color: var(--color-primary);
}

.button--secondary:hover,
.button--secondary:focus-visible {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #ffffff;
}

.main-nav .button,
.main-nav .button:visited,
.main-nav .button:hover,
.main-nav .button:focus-visible {
    color: #ffffff;
}

@media (max-width: 820px) {
    .main-nav .button {
        width: 100%;
    }
}