:root {
    /* Primary colors */
    --navy-950: #142B4A;
    --navy-900: #1B3A5B;
    --navy-800: #244D78;
    --navy-700: #4A6B9C;
    --navy-50: #F0F5FA;

    --blue-700: #356A9A;
    --blue-100: #E5F0F9;

    /* Accent colors */
    --ice-blue: #DCEAF7;
    --gold: #F3C969;

    /* Ultimate frisbee field colors */
    --field-green: #72AD79;
    --field-endzone: #D8EDCE;
    --field-line: #FFFFFF;
    --field-text: #142B4A;

    /* Backgrounds and text */
    --page: #F5F7FA;
    --surface: #FFFFFF;
    --ink: #182638;
    --muted: #64748B;
    --line: #D8E1EB;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    scroll-behavior: smooth;
}

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

header {
    background: var(--navy-800);
    color: white;
    padding: 1rem clamp(1rem, 4vw, 3.5rem) 0;
    border-bottom: 4px solid var(--ice-blue);
}

header h1 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.25rem 0 0.75rem;
    font-size: clamp(1.35rem, 2.5vw, 2rem);
    line-height: 1.25;
    letter-spacing: -0.04em;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
}

nav menu {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav li {
    margin: 0;
}

nav a {
    display: block;
    padding: 0.7rem 1rem;
    color: var(--ice-blue);
    text-decoration: none;
    border-radius: 0.6rem 0.6rem 0 0;
    font-weight: 600;
    transition: background-color 160ms ease, color 160ms ease;
}

nav a:hover,
nav a:focus-visible {
    background: var(--navy-950);
    color: white;
    outline: none;
}


a {
    color: var(--navy-700);
}

a:hover {
    color: var(--navy-950);
}

footer {
    background: var(--navy-800);
    color: var(--ice-blue);
    padding: 1.4rem max(1rem, calc((100% - 1200px) / 2));
    margin-top: 3rem;

}

footer hr {
    display: none;
}

footer a {
    display: inline-block;
    margin-top: 0.25rem;
    color: var(--gold);
    font-weight: 700;
}

footer a:hover {
    color: white;
}

main {
    width: min(1200px, calc(100% - 2rem));
    margin: 2rem auto 3rem;
    min-height: 55vh;
}

main > h1,
main > h2 {
    margin: 0 0 1.25rem;
    color: var(--navy-950);
    letter-spacing: -0.035em;
    line-height: 1.2;
}

main > h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
}

main > h2 {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
}

h3 {
    margin: 0 0 0.8rem;
    color: var(--navy-900);
    font-size: 1.15rem;
}

p {
    margin: 0 0 1rem;
}

hr {
    border: 0;
    border-top: 1px solid var(--line);
}


main > section,
main > form,
#picture {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: clamp(1rem, 2.5vw, 1.5rem);
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow);
}

main > section p:last-child,
main > form p:last-child {
    margin-bottom: 0;
}

main table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    background: white;
}

main th,
main td {
    padding: 0.8rem 1rem;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    text-align: left;
}

main th:last-child,
main td:last-child {
    border-right: 0;
}

main tr:last-child td {
    border-bottom: 0;
}

main th {
    background: var(--navy-900);
    color: white;
    font-weight: 700;
}

main tbody tr:nth-child(even),
main table tr:nth-child(even) {
    background: var(--navy-50);
}

form {
    max-width: 460px;
}

form div {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 1rem;
}


input {
    width: 100%;
    min-width: 0;
    padding: 0.8rem 0.9rem;
    border: 1px solid #c8d5cc;
    border-radius: 0.6rem;
    background: #fbfdfb;
    color: var(--ink);
    font: inherit;
}

input:focus {
    outline: 3px solid rgba(45, 115, 84, 0.2);
    border-color: var(--navy-700);
}

button {
    border: 0;
    border-radius: 0.6rem;
    padding: 0.75rem 1rem;
    margin: 0.25rem 0.35rem 0.25rem 0;
    background: var(--navy-700);
    color: white;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 160ms ease, transform 160ms ease;
}

button:hover {
    background: var(--navy-900);
    transform: translateY(-1px);
}

button:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 3px;
}

button:active {
    transform: translateY(0);
}


@media (max-width: 760px) {
    header {
        padding-inline: 1rem;
    }

    nav a {
        padding: 0.65rem 0.75rem;
    }

    main {
        width: min(100% - 1.25rem, 1200px);
        margin-top: 1.25rem;
    }

    main th,
    main td {
        padding: 0.65rem 0.5rem;
        font-size: 0.9rem;
    }

    footer {
        margin-top: 2rem;
    }
}

@media (max-width: 420px) {
    nav menu {
        gap: 0.1rem;
    }

    nav a {
        padding: 0.6rem 0.55rem;
        font-size: 0.9rem;
    }

    button {
        width: 100%;
        margin-right: 0;
    }

    main table {
        font-size: 0.82rem;
    }
}