:root {
    --giallo: #f4d87f;
    --giallo-bright: #f4a900;
    --cyan: #00ffff;
    --magenta: #ff1493;
    --arancione: #ff6b00;
    --nero: #000000;
    --bianco: #ffffff;
    --grigio: #1a1a1a;
    --bg: #0a0a0a;
    --testo: #f5f5f5;
    --border-thick: 4px;
    --radius: 6px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg);
    color: var(--testo);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="4"/></filter><rect width="100" height="100" filter="url(%23n)" opacity="0.03"/></svg>');
    pointer-events: none;
    z-index: 0;
}

.scanlines {
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.hero {
    text-align: center;
    margin-bottom: 2.5rem;
}

.hero h1 {
    font-size: clamp(3rem, 10vw, 5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--giallo);
    text-shadow:
        2px 2px 0 rgba(255, 20, 147, 0.6),
        4px 4px 8px rgba(255, 136, 0, 0.4);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--cyan);
    letter-spacing: 0.02em;
}

.glitch {
    position: relative;
    animation: glitch-skew 4s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.glitch::before {
    color: var(--cyan);
    z-index: -1;
    animation: glitch-a 3s infinite linear alternate-reverse;
}

.glitch::after {
    color: var(--magenta);
    z-index: -2;
    animation: glitch-b 2s infinite linear alternate-reverse;
}

@keyframes glitch-a {
    0%, 90%   { clip-path: inset(0); transform: translate(0); }
    92%       { clip-path: inset(20% 0 60% 0); transform: translate(-3px, 1px); }
    94%       { clip-path: inset(50% 0 20% 0); transform: translate(3px, -1px); }
    96%       { clip-path: inset(70% 0 10% 0); transform: translate(-2px, 2px); }
    98%       { clip-path: inset(10% 0 80% 0); transform: translate(2px, -2px); }
    100%      { clip-path: inset(0); transform: translate(0); }
}

@keyframes glitch-b {
    0%, 88%   { clip-path: inset(0); transform: translate(0); }
    90%       { clip-path: inset(40% 0 30% 0); transform: translate(3px, -1px); }
    93%       { clip-path: inset(60% 0 20% 0); transform: translate(-3px, 1px); }
    96%       { clip-path: inset(20% 0 50% 0); transform: translate(2px, 2px); }
    100%      { clip-path: inset(0); transform: translate(0); }
}

@keyframes glitch-skew {
    0%, 95%   { transform: skew(0deg); }
    96%       { transform: skew(0.5deg); }
    98%       { transform: skew(-0.3deg); }
    100%      { transform: skew(0deg); }
}

.sniff-form {
    margin-bottom: 2rem;
}

.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.input-group {
    display: flex;
    border: var(--border-thick) solid var(--cyan);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.input-group:focus-within {
    border-color: var(--giallo-bright);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.15);
}

#url-input {
    flex: 1;
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
    background: var(--grigio);
    color: var(--testo);
    border: none;
    outline: none;
    font-family: inherit;
    min-width: 0;
}

#url-input::placeholder {
    color: #666;
}

#sniff-btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--arancione);
    color: var(--nero);
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    font-family: inherit;
    white-space: nowrap;
}

#sniff-btn:hover {
    background: var(--giallo-bright);
}

#sniff-btn:active {
    transform: scale(0.97);
}

#sniff-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loading .paw {
    display: inline-block;
    animation: paw-bounce 0.6s ease-in-out infinite;
}

@keyframes paw-bounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-4px); }
}

.error-box {
    background: rgba(255, 20, 147, 0.1);
    border: 2px solid var(--magenta);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    color: var(--magenta);
    font-weight: 600;
    margin-bottom: 2rem;
}

.results {
    margin-bottom: 3rem;
}

.results-title {
    font-size: 1.4rem;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--giallo);
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: var(--border-thick) solid var(--cyan);
}

.results-note {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: #555;
    text-align: center;
}

.chain {
    display: flex;
    flex-direction: column;
}

.hop {
    background: var(--grigio);
    border: 2px solid #333;
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    opacity: 0;
    transform: translateX(-20px);
    animation: hop-in 0.4s forwards;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.hop:hover {
    border-color: var(--giallo-bright);
    box-shadow: 0 0 10px rgba(244, 169, 0, 0.08);
}

.hop.final {
    border-color: var(--cyan);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.1);
}

.hop-url {
    font-size: 0.95rem;
    word-break: break-all;
    margin-bottom: 0.5rem;
}

.hop-url a {
    color: var(--giallo);
    text-decoration: none;
}

.hop-url a:hover {
    text-decoration: underline;
}

.hop-meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-redirect {
    background: rgba(244, 169, 0, 0.15);
    color: var(--giallo-bright);
    border: 1px solid var(--giallo-bright);
}

.badge-ok {
    background: rgba(0, 255, 100, 0.1);
    color: #0f6;
    border: 1px solid #0f6;
}

.badge-error {
    background: rgba(255, 20, 147, 0.1);
    color: var(--magenta);
    border: 1px solid var(--magenta);
}

.badge-info {
    background: rgba(0, 255, 255, 0.08);
    color: var(--cyan);
    border: 1px solid rgba(0, 255, 255, 0.25);
}

.final-label {
    display: inline-block;
    margin-top: 0.6rem;
    padding: 0.2rem 0.65rem;
    background: var(--cyan);
    color: var(--nero);
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
    border-radius: 3px;
    letter-spacing: 0.05em;
}

.arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0;
    color: #444;
    font-size: 1.2rem;
    opacity: 0;
    animation: hop-in 0.3s forwards;
}

@keyframes hop-in {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #222;
    font-size: 0.85rem;
    color: #555;
}

.footer a {
    color: var(--cyan);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.badge-meta {
    background: rgba(255, 107, 0, 0.15);
    color: var(--arancione);
    border: 1px solid var(--arancione);
}

.hero-logo {
    width: 80px;
    height: auto;
    margin-bottom: 0.75rem;
    filter: drop-shadow(0 0 8px rgba(255, 107, 0, 0.4));
}

.hero-desc {
    max-width: 500px;
    margin: 1rem auto 0;
    font-size: 0.9rem;
    color: #fff;
    line-height: 1.5;
}

.divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 2rem 0;
    color: #fff;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, #fff, transparent);
}

.qr-section {
    margin-bottom: 2rem;
}

.qr-title {
    font-size: 1.1rem;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--giallo);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    text-align: center;
}

.qr-desc {
    font-size: 0.8rem;
    color: #fff;
    text-align: center;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.qr-drop {
    border: 2px dashed #444;
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}

.qr-drop:hover,
.qr-drop-active {
    border-color: var(--cyan);
    background: rgba(0, 255, 255, 0.03);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.08);
}

.qr-drop-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.qr-drop-icon {
    font-size: 2rem;
}

.qr-drop-text {
    color: #fff;
    font-size: 0.9rem;
}

.qr-preview {
    margin-top: 1rem;
    text-align: center;
}

.qr-preview img {
    max-width: 200px;
    max-height: 200px;
    border: 2px solid #333;
    border-radius: var(--radius);
}

.qr-result {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    word-break: break-all;
}

.qr-result-ok {
    background: rgba(0, 255, 255, 0.08);
    border: 1px solid var(--cyan);
    color: var(--cyan);
}

.qr-result-fail {
    background: rgba(255, 20, 147, 0.08);
    border: 1px solid var(--magenta);
    color: var(--magenta);
}

.qr-result-nourl {
    background: rgba(244, 169, 0, 0.1);
    border: 1px solid var(--giallo-bright);
    color: var(--giallo-bright);
}


@media (max-width: 600px) {
    .container {
        padding: 2rem 1rem;
    }

    .input-group {
        flex-direction: column;
    }

    #sniff-btn {
        padding: 0.85rem;
    }

    .hop {
        padding: 0.85rem 1rem;
    }
}