/* HEADER */
header, nav, ul {
    margin: 0;
    padding: 0;
}

header {
    background-color: #1f2937;
    padding: 20px 0;
    text-align: center;
    margin-bottom: 20px;
}

header h1 {
    color: #ffffff;
    margin-bottom: 15px;
    font-family: 'Segoe UI', Arial, sans-serif;
    font-weight: 500;
    letter-spacing: 1px;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 25px;
}

nav a {
    text-decoration: none;
    color: #e5e7eb;
    font-family: 'Segoe UI', Arial, sans-serif;
    font-size: 16px;
    padding: 8px 14px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

nav a:hover {
    background-color: #2563eb;
    color: #ffffff;
    transform: translateY(-2px);
}

/* MAIN PAGES */

.container {
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

body {
    font-family: "Segoe UI", Arial, sans-serif;
    background-color: #e6edf5;
    color: #374151;
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    color: #1f2937;
    font-weight: 600;
    margin-top: 0;
}

p {
    color: #4b5563;
    line-height: 1.6;
}

section {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0px 6px 14px rgba(0, 0, 0, 0.05);
    margin: 25px auto;
    max-width: 1100px;
}

/* FORMS */
form input[type="text"],
form input[type="email"],
form input[type="number"],
form input[type="password"],
form select,
form textarea {
    width: 100%;
    max-width: 450px;
    padding: 10px;
    margin-bottom: 16px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 15px;
    font-family: "Segoe UI", Arial, sans-serif;
}

form input[type="text"]:focus,
form input[type="email"]:focus,
form input[type="number"]:focus,
form input[type="password"]:focus,
form select:focus,
form textarea:focus {
    border-color: #1f2937;
    outline: none;
    box-shadow: 0 0 0 3px rgba(31, 41, 55, 0.15);
}

/* TABLE */

section {
    padding: 20px 0;
}

section h2 {
    font-family: "Segoe UI", Arial, sans-serif;
    font-weight: 600;
    margin: 20px 0;
}

section table {
    width: 100%;
    max-width: 1100px;
    margin: 25px auto;
    border-collapse: collapse;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0px 6px 14px rgba(0, 0, 0, 0.08);
}

section td {
    padding: 20px;
    vertical-align: top;
}

section img {
    width: 100%;
    max-width: 500px;
    border-radius: 6px;
}

section td p {
    margin: 8px 0;
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 15px;
    color: #111827;
}

section td p:first-child {
    font-size: 20px;
    font-weight: bold;
    color: #1f2937;
}

section form {
    margin-top: 15px;
}

section button {
    background-color: #1f2937;
    color: white;
    border: none;
    padding: 10px 18px;
    font-size: 15px;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.15);
    transition: 0.2s;
}

section button:hover {
    background-color: #111827;
}

section button:active {
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.2);
}



/* BUTTONS */
button,
input[type="submit"] {
    background-color: #1f2937;
    color: white;
    border: none;
    padding: 10px 18px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.2);
    transition: 0.2s;
}

button:hover,
input[type="submit"]:hover {
    background-color: #111827;
    transform: translateY(-2px);
}

button:active,
input[type="submit"]:active {
    transform: translateY(0px);
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.2);
}

/* FOOTER */
footer {
    background-color: #1f2937;
    color: #f3f4f6;
    text-align: center;
    padding: 30px 15px;
    margin-top: 20px;
}

footer h2 {
    margin-bottom: 10px;
    font-weight: 500;
}

footer .hidden-link,
footer .hidden-link:visited,
footer .hidden-link:hover,
footer .hidden-link:active {
    color: #f3f4f6;
    text-decoration: none;
    background: transparent;
    transform: none;
    box-shadow: none;
    transition: none;
    cursor: default;
}

footer p {
    margin: 6px 0;
    font-size: 15px;
}

footer p:first-of-type {
    color: rgba(255, 255, 255, 0.65);
    font-style: italic;
}