:root {
    --mx-bg: #020315;
    --mx-bg-alt: #050821;
    --mx-border: rgba(0, 255, 200, 0.25);
    --mx-primary: #00ffc8;
    --mx-primary-soft: rgba(0, 255, 200, 0.12);
    --mx-danger: #ff3366;
    --mx-ok: #00ff88;
    --mx-text: #e6faff;
    --mx-muted: #7b8b9e;
    --mx-radius: 14px;
    --mx-shadow: 0 0 40px rgba(0, 255, 200, 0.15);
    --mx-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html, body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    font-family: var(--mx-font);
    background: radial-gradient(circle at top, #051937 0, #020315 40%, #000 100%);
    color: var(--mx-text);
}

.mx-app {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
}

.mx-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.mx-logo {
    font-size: 1.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 0 0 0.4rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.mx-logo span {
    color: var(--mx-primary);
}

.mx-subtitle {
    margin: 0;
    color: var(--mx-muted);
    font-size: 0.95rem;
}

.mx-form-card {
    background: linear-gradient(135deg, rgba(0, 255, 200, 0.05), rgba(0, 120, 255, 0.08));
    border-radius: var(--mx-radius);
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--mx-border);
    box-shadow: var(--mx-shadow);
    position: relative;
    overflow: hidden;
}

.mx-form-card::before {
    content: "";
    position: absolute;
    inset: -40%;
    background:
        radial-gradient(circle at 10% 0%, rgba(0, 255, 200, 0.15), transparent 60%),
        radial-gradient(circle at 90% 100%, rgba(0, 120, 255, 0.18), transparent 60%);
    opacity: 0.7;
    mix-blend-mode: screen;
    pointer-events: none;
}

.mx-form {
    position: relative;
    z-index: 1;
}

.mx-label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    color: var(--mx-muted);
}

.mx-input-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.4rem;
}

.mx-input {
    flex: 1;
    padding: 0.65rem 0.8rem;
    border-radius: 999px;
    border: 1px solid rgba(0, 255, 200, 0.5);
    background: rgba(2, 3, 21, 0.9);
    color: var(--mx-text);
    font-size: 0.95rem;
    outline: none;
    box-shadow: 0 0 0 0 rgba(0, 255, 200, 0.6);
    transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.mx-input:focus {
    border-color: var(--mx-primary);
    box-shadow: 0 0 0 1px rgba(0, 255, 200, 0.8);
    background: rgba(2, 8, 40, 0.95);
}

.mx-btn {
    padding: 0.65rem 1.4rem;
    border-radius: 999px;
    border: none;
    background: linear-gradient(120deg, #00ffc8, #00a2ff);
    color: #020315;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow: 0 0 25px rgba(0, 255, 200, 0.6);
    transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}

.mx-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 32px rgba(0, 255, 200, 0.8);
    filter: brightness(1.1);
}

.mx-btn:active {
    transform: translateY(0);
    box-shadow: 0 0 18px rgba(0, 255, 200, 0.6);
}

.mx-help {
    margin: 0;
    font-size: 0.85rem;
    color: var(--mx-muted);
}

.mx-main {
    margin-top: 1.5rem;
}

.mx-result {
    margin-top: 1.25rem;
    padding: 1.25rem 1.3rem;
    background: rgba(2, 3, 21, 0.9);
    border-radius: var(--mx-radius);
    border: 1px solid var(--mx-border);
    box-shadow: 0 0 30px rgba(0, 255, 200, 0.18);
}

.mx-result--error {
    border-color: var(--mx-danger);
}

.mx-result-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    border-bottom: 1px solid rgba(0, 255, 200, 0.15);
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
}

.mx-result-header h2 {
    margin: 0 0 0.25rem;
    font-size: 1.15rem;
}

.mx-url,
.mx-status {
    margin: 0;
    font-size: 0.85rem;
    color: var(--mx-muted);
}

.mx-grade-badge {
    min-width: 80px;
    padding: 0.4rem 0.7rem;
    border-radius: 0.75rem;
    text-align: right;
    background: radial-gradient(circle at top, #052822, #020315);
    border: 1px solid rgba(0, 255, 200, 0.5);
}

.mx-grade {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
}

.mx-score {
    display: block;
    font-size: 0.8rem;
    color: var(--mx-muted);
}

/* Grades color tweak */
.mx-grade-badge--f,
.mx-grade-badge--e,
.mx-grade-badge--d {
    border-color: var(--mx-danger);
    background: radial-gradient(circle at top, #2b0713, #15020b);
}

.mx-grade-badge--b,
.mx-grade-badge--c {
    border-color: #ffc400;
}

.mx-grade-badge--a,
.mx-grade-badge--aplus {
    border-color: var(--mx-ok);
}

/* Sections */
.mx-section {
    margin-top: 1rem;
}

.mx-section h3,
.mx-section h2 {
    margin: 0 0 0.4rem;
    font-size: 1rem;
}

.mx-headers-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.mx-header-item {
    padding: 0.75rem 0.8rem;
    border-radius: 0.9rem;
    background: rgba(5, 8, 33, 0.9);
    border: 1px solid rgba(0, 255, 200, 0.18);
    position: relative;
    overflow: hidden;
}

.mx-header-item::before {
    content: "";
    position: absolute;
    inset: -120%;
    background: repeating-linear-gradient(
        135deg,
        rgba(0, 255, 200, 0.03),
        rgba(0, 255, 200, 0.03) 2px,
        transparent 2px,
        transparent 6px
    );
    opacity: 0.9;
    mix-blend-mode: screen;
    pointer-events: none;
}

.mx-header-item--ok {
    border-color: rgba(0, 255, 136, 0.7);
}

.mx-header-item--ko {
    border-color: rgba(255, 51, 102, 0.7);
    background: radial-gradient(circle at top left, rgba(255, 51, 102, 0.1), rgba(5, 8, 33, 0.9));
}

.mx-header-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.2rem;
}

.mx-header-name {
    font-family: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.87rem;
}

.mx-header-status {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0.1rem 0.4rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.mx-header-item--ok .mx-header-status {
    border-color: rgba(0, 255, 136, 0.9);
}

.mx-header-item--ko .mx-header-status {
    border-color: rgba(255, 51, 102, 0.9);
}

.mx-header-msg {
    margin: 0 0 0.2rem;
    font-size: 0.85rem;
    color: var(--mx-muted);
}

.mx-header-value {
    margin: 0;
    font-size: 0.8rem;
}

.mx-header-value code {
    font-family: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.78rem;
    padding: 0.1rem 0.35rem;
    border-radius: 0.4rem;
    background: rgba(1, 4, 18, 0.9);
    border: 1px solid rgba(0, 255, 200, 0.18);
}

/* Raw headers */
.mx-section--raw .mx-pre {
    margin: 0;
    padding: 0.75rem;
    border-radius: 0.8rem;
    background: #050821;
    border: 1px solid rgba(0, 255, 200, 0.25);
    font-size: 0.78rem;
    overflow-x: auto;
}

/* FAQ */
.mx-faq details {
    margin-bottom: 0.4rem;
    background: rgba(5, 8, 33, 0.9);
    border-radius: 0.75rem;
    border: 1px solid rgba(0, 255, 200, 0.2);
    padding: 0.4rem 0.7rem;
}

.mx-faq summary {
    cursor: pointer;
    font-size: 0.9rem;
}

.mx-faq p {
    font-size: 0.85rem;
    color: var(--mx-muted);
}

/* Responsiveness */
@media (max-width: 720px) {
    .mx-app {
        padding: 1rem;
    }
    .mx-input-row {
        flex-direction: column;
    }
    .mx-btn {
        width: 100%;
        justify-content: center;
        display: inline-flex;
    }
    .mx-result-header {
        flex-direction: column;
        align-items: flex-start;
    }
}