:root {
    --bg-dark: #010409;
    --bg-panel-dark: rgba(13, 17, 23, 0.6);
    --border-color-dark: #30363d;
    --text-primary-dark: #c9d1d9;
    --text-secondary-dark: #8b949e;
    --success-bg-dark: rgba(46, 160, 67, 0.15);
    --success-border-dark: rgba(46, 160, 67, 0.4);
    --success-text-dark: #56d364;
    --title-glow-color-dark: #58a6ff;

    --bg-light: #f0f2f5;
    --bg-panel-light: rgba(255, 255, 255, 0.6);
    --border-color-light: #d0d7de;
    --text-primary-light: #24292f;
    --text-secondary-light: #57606a;
    --success-bg-light: #dafbe1;
    --success-border-light: #8ce9a3;
    --success-text-light: #125420;
    --title-glow-color-light: #0969da;

    --accent-blue-light: #58a6ff;
    --accent-blue-dark: #1f6feb;
    --accent-red: #f85149;
    --font-primary: 'Roboto', sans-serif;
    --font-display: 'Orbitron', sans-serif;
}

body {
    --bg: var(--bg-dark);
    --bg-panel: var(--bg-panel-dark);
    --border-color: var(--border-color-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --success-bg: var(--success-bg-dark);
    --success-border: var(--success-border-dark);
    --success-text: var(--success-text-dark);
    --title-glow-color: var(--title-glow-color-dark);

    margin: 0;
    font-family: var(--font-primary);
    background-color: var(--bg);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1rem;
    box-sizing: border-box;
    overflow: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

body[data-theme="light"] {
    --bg: var(--bg-light);
    --bg-panel: var(--bg-panel-light);
    --border-color: var(--border-color-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --success-bg: var(--success-bg-light);
    --success-border: var(--success-border-light);
    --success-text: var(--success-text-light);
    --title-glow-color: var(--title-glow-color-light);
}


/* --- BACKGROUND EFFECTS --- */
.background-effects { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
.grid-overlay { width: 100%; height: 100%; background-image: linear-gradient(to right, var(--border-color) 1px, transparent 1px), linear-gradient(to bottom, var(--border-color) 1px, transparent 1px); background-size: 50px 50px; opacity: 0.2; animation: pan-grid 60s linear infinite; transition: background-image 0.5s ease; }
@keyframes pan-grid { from { background-position: 0 0; } to { background-position: 1000px 500px; } }
.glow-sphere { position: absolute; border-radius: 50%; filter: blur(120px); transition: background 0.5s ease; }
.sphere1 { width: 350px; height: 350px; background: rgba(31, 111, 235, 0.2); top: -100px; left: -100px; animation: float 15s infinite alternate ease-in-out; }
.sphere2 { width: 450px; height: 450px; background: rgba(88, 166, 255, 0.15); bottom: -150px; right: -150px; animation: float 20s infinite alternate-reverse ease-in-out; }
@keyframes float { from { transform: translate(0, 0) scale(1); } to { transform: translate(50px, 25px) scale(1.1); } }
#particle-container { position: absolute; width: 100%; height: 100%; }
.particle { 
    position: absolute; 
    width: 20px;
    height: 20px;
    background-color: var(--accent-blue-light);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    animation: drift 20s infinite linear; 
    opacity: 0; 
}
@keyframes drift { 
    from { transform: translateY(110vh) rotate(0deg) scale(1); opacity: 1; } 
    to { transform: translateY(-10vh) rotate(720deg) scale(0); opacity: 0; } 
}


/* --- MAIN LAYOUT --- */
.app-container { z-index: 1; display: flex; flex-direction: column; gap: 1rem; width: 100%; max-width: 420px; }
.app-header { text-align: center; position: relative; }
.title-glow { font-family: var(--font-display); font-size: 3rem; font-weight: 700; color: var(--title-glow-color); letter-spacing: 2px; text-shadow: 0 0 5px var(--accent-blue-dark), 0 0 15px var(--accent-blue-dark), 0 0 30px rgba(31, 111, 235, 0.5); animation: flicker 5s infinite linear; transition: color 0.5s ease; }
body[data-theme="light"] .title-glow { text-shadow: none; }
@keyframes flicker { 0%, 100% { opacity: 1; } 50% { opacity: 0.9; } }
.subtitle { font-family: var(--font-display); color: var(--text-secondary); font-size: 0.8rem; margin-top: 0.25rem; text-transform: uppercase; letter-spacing: 1px; }

/* --- THEME TOGGLE --- */
.theme-toggle { position: absolute; top: 0; right: 0; background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 8px; width: 36px; height: 36px; padding: 6px; cursor: pointer; color: var(--text-secondary); transition: all 0.3s ease; }
.theme-toggle:hover { color: var(--text-primary); border-color: var(--accent-blue-light); transform: rotate(15deg) scale(1.1); }
.theme-toggle svg { width: 100%; height: 100%; transition: opacity 0.3s ease, transform 0.3s ease; position: absolute; top: 6px; left: 6px; }
.theme-toggle .sun { opacity: 0; transform: scale(0); }
.theme-toggle .moon { opacity: 1; transform: scale(1); }
body[data-theme="light"] .theme-toggle .sun { opacity: 1; transform: scale(1); }
body[data-theme="light"] .theme-toggle .moon { opacity: 0; transform: scale(0); }


/* --- MAIN PANEL & NAV --- */
.main-panel { 
    background: var(--bg-panel); 
    backdrop-filter: blur(10px); 
    border: 1px solid var(--border-color); 
    border-radius: 12px; 
    transition: background-color 0.5s, border-color 0.5s;
    animation: pride-breathe-border 10s infinite;
}
.deleted-panel { text-align: center; padding: 2rem; display: flex; justify-content: center; align-items: center; } /* For deleted.html */
.deleted-panel header { width: 100%; }
@keyframes pride-breathe-border {
    0%, 100% { border-color: #FF0000; box-shadow: 0 0 15px rgba(255, 0, 0, 0.3); }
    16%      { border-color: #FF7F00; box-shadow: 0 0 15px rgba(255, 127, 0, 0.3); }
    33%      { border-color: #FFFF00; box-shadow: 0 0 15px rgba(255, 255, 0, 0.3); }
    50%      { border-color: #00FF00; box-shadow: 0 0 15px rgba(0, 255, 0, 0.3); }
    66%      { border-color: #0000FF; box-shadow: 0 0 15px rgba(0, 0, 255, 0.3); }
    83%      { border-color: #8B00FF; box-shadow: 0 0 15px rgba(139, 0, 255, 0.3); }
}
.main-nav { display: flex; border-bottom: 1px solid var(--border-color); transition: border-color 0.5s; }
.nav-btn { flex: 1; background: none; border: none; color: var(--text-secondary); padding: 0.9rem; font-family: var(--font-display); font-size: 0.8rem; cursor: pointer; transition: color 0.2s, background-color 0.2s; position: relative; border-top-left-radius: 11px; border-top-right-radius: 11px; }
.nav-btn.active { color: var(--text-primary); background-color: rgba(88, 166, 255, 0.05); }
.nav-btn.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--accent-blue-light); animation: pulse-glow 2s infinite alternate; }
@keyframes pulse-glow { from { box-shadow: 0 0 2px var(--accent-blue-light); } to { box-shadow: 0 0 8px var(--accent-blue-light); } }
.nav-btn:hover:not(.active) { color: var(--text-primary); background-color: rgba(255,255,255,0.02); }
.report-nav-btn { font-weight: 700; color: #a43a36; }
.report-nav-btn:hover, .report-nav-btn.active { color: var(--accent-red); }
.view { display: none; }
.view.active { display: block; animation: fade-in 0.4s ease; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* --- FORMS & INPUTS --- */
.main-form { padding: 1.5rem; }
.form-description { font-size: 0.85rem; text-align: center; color: var(--text-secondary); margin-bottom: 1.5rem; }
.space-y-6 > * + * { margin-top: 1rem; }
.input-container { position: relative; }
.input-field { width: 100%; background: transparent; border: 1px solid var(--border-color); border-radius: 6px; padding: 0.75rem 1rem; color: var(--text-primary); font-family: var(--font-primary); font-size: 0.9rem; transition: all 0.3s; outline: none; box-sizing: border-box; resize: vertical; }
.input-field::placeholder { color: var(--text-secondary); font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 1px; }
.input-field:focus { border-color: var(--accent-blue-light); box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2); }

/* --- FILE UPLOAD --- */
.file-drop-area { display: block; padding: 1rem; border: 2px dashed var(--border-color); border-radius: 6px; text-align: center; cursor: pointer; transition: border-color 0.3s, background-color 0.3s; }
.file-drop-area:hover, .file-drop-area.dragover { border-color: var(--accent-blue-light); background-color: rgba(88, 166, 255, 0.05); }
.file-drop-content { display: flex; flex-direction: column; align-items: center; gap: 0.25rem; color: var(--text-secondary); font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 1px; }
.file-icon { width: 1.75rem; height: 1.75rem; color: var(--accent-blue-light); opacity: 0.5; transition: opacity 0.3s; }
.file-drop-area:hover .file-icon { opacity: 1; }
.hidden { display: none !important; }

/* --- BUTTONS --- */
.submit-btn { width: 100%; padding: 0.8rem 1rem; background: linear-gradient(90deg, var(--accent-blue-dark), var(--accent-blue-light)); border: none; border-radius: 6px; color: #fff; font-family: var(--font-display); font-size: 0.9rem; font-weight: 700; letter-spacing: 1.5px; cursor: pointer; position: relative; overflow: hidden; transition: transform 0.2s, box-shadow 0.3s; }
.submit-btn:hover { transform: translateY(-2px); box-shadow: 0 5px 20px rgba(88, 166, 255, 0.3); }
.submit-btn::before { content: ""; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.4), transparent); animation: shimmer 5s infinite; }
@keyframes shimmer { 0% { left: -100%; } 40%, 100% { left: 100%; } }
.delete-btn { background: linear-gradient(90deg, #b22222, var(--accent-red)); }
.delete-btn:hover { box-shadow: 0 5px 20px rgba(248, 81, 73, 0.3); }
.report-btn { background: linear-gradient(90deg, #b22222, var(--accent-red)); }
.report-btn:hover { box-shadow: 0 5px 20px rgba(248, 81, 73, 0.3); }

/* --- RESULT AREA & FOOTER --- */
.panel-footer { padding: 0 1.5rem 1.5rem 1.5rem; }
.result-container { text-align: center; transition: all 0.3s ease-in-out; margin-top: 0; max-height: 0; overflow: hidden; opacity: 0; }
.result-container.visible { margin-top: 1.5rem; max-height: 500px; opacity: 1; }
.message { padding: 0.8rem 1rem; border-radius: 6px; font-size: 0.9rem; margin-bottom: 1rem; }
.message.success { background-color: var(--success-bg); border: 1px solid var(--success-border); color: var(--success-text); }
.message.error { background-color: rgba(248, 81, 73, 0.1); border: 1px solid rgba(248, 81, 73, 0.4); color: var(--accent-red); }
.result-url-wrapper { display: flex; background: var(--bg); border: 1px solid var(--border-color); border-radius: 6px; padding: 0.5rem; padding-left: 1rem; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.result-url-text { color: var(--accent-blue-light); word-break: break-all; }
.copy-btn { background: var(--bg-panel); border: 1px solid var(--border-color); color: var(--text-primary); padding: 0.5rem 0.8rem; border-radius: 4px; cursor: pointer; transition: all 0.2s; }
.management-key-wrapper { text-align: center; font-size: 0.8rem; color: var(--text-secondary); background: rgba(0,0,0,0.2); padding: 0.8rem; border-radius: 6px; }
.stats-counter { text-align: center; color: var(--text-secondary); font-family: var(--font-display); font-size: 0.8rem; padding-top: 1.5rem; border-top: 1px solid var(--border-color); }
#stats-number { font-weight: 700; color: var(--accent-blue-light); letter-spacing: 1px; }

/* --- MY LINKS LIST --- */
#my-links-container { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px dashed var(--border-color); }
#my-links-container:empty { display: none; }
.my-links-title { font-family: var(--font-display); text-align: center; color: var(--text-secondary); margin-bottom: 1rem; }
.my-links-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.75rem; max-height: 200px; overflow-y: auto; padding-right: 10px; }
.my-links-item { display: grid; grid-template-columns: 80px 1fr 80px auto; align-items: center; gap: 1rem; background: rgba(0,0,0,0.1); padding: 0.75rem 1rem; border-radius: 4px; }
.my-links-item > div { display: flex; flex-direction: column; justify-content: center; }
.my-links-item .code-col { text-align: left; }
.my-links-item .target-col { text-align: center; }
.my-links-item .date-col { text-align: center; }
.my-links-item .action-col { text-align: right; }
.my-links-item .code { font-weight: 700; }
.my-links-item a { color: var(--accent-blue-light); text-decoration: none; font-size: 1rem; }
.my-links-item .target { font-size: 0.8rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.my-links-item .date { font-size: 0.8rem; color: var(--text-secondary); }
.my-links-delete-btn { background: var(--accent-red); color: white; border: none; border-radius: 4px; padding: 0.4rem 0.7rem; font-size: 0.75rem; cursor: pointer; }

/* --- CUSTOM SCROLLBAR --- */
.my-links-list::-webkit-scrollbar {
  width: 8px;
}
.my-links-list::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.2);
  border-radius: 4px;
}
.my-links-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
.my-links-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}