/* =========================================
   1. Core & Reset
   ========================================= */
*, *::before, *::after {
    box-sizing: border-box;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #1e1f22; border-radius: 3px; }
::-webkit-scrollbar-thumb { background: #5865f2; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #4752c4; }

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #1e1f22, #111214);
    color: #dbdee1;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

hr {
    border-color: #3f4147;
    margin: 24px 0;
}

/* =========================================
   2. Layout & Containers
   ========================================= */
.card {
    background: #313338;
    padding: 32px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, .5);
    width: 100%;
    max-width: 600px;
    animation: fadeIn .8s ease;
    overflow-y: auto;
    max-height: 95vh;
}

.card.wide {
    max-width: 900px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.row {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 12px;
}
.row > * { flex: none; }
.row label,
.row .checkbox-container { margin-top: 0; }

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 6px;
}
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 16px;
    margin-top: 18px;
}

/* =========================================
   3. Typography & Inputs
   ========================================= */
h2 {
    color: #adb8ff;
    text-align: center;
    margin: 0 0 24px;
    font-weight: 600;
}

label {
    display: block;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 500;
}

input[type="text"],
textarea,
input[type="password"],
select,
input[type="number"] {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    border-radius: 8px;
    border: 1px solid #3f4147;
    background: #1e1f22;
    color: #fff;
    font-family: monospace;
    resize: vertical;
}

input[type="text"]:focus,
textarea:focus,
input[type="password"]:focus,
select:focus,
input[type="number"]:focus {
    outline: none;
    border-color: #5865f2;
    box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.15);
}

textarea {
    overflow-y: auto;
    min-height: 80px;
}

input[type="number"] {
    width: 80px;
    padding: 6px;
    appearance: none;
    display: inline-block;
    resize: none;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Toggle checkbox */
.checkbox-container {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    user-select: none;
    margin-top: 6px;
}

.checkbox-container input {
    appearance: none;
    width: 38px;
    height: 20px;
    background: #3f4147;
    border-radius: 20px;
    position: relative;
    transition: background .3s ease, box-shadow .4s ease;
    margin: 0;
    padding: 0;
    flex: none;
    border: none;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
    cursor: pointer;
}
.checkbox-container:hover input { background: #464a51; }
.checkbox-container input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.35), inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

/* Knob */
.checkbox-container input::before {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(145deg, #fff, #dde1e7);
    top: 3px;
    left: 3px;
    transition:
        transform  .4s cubic-bezier(.34, 1.56, .64, 1),
        box-shadow .3s ease,
        background .3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.45), 0 1px 2px rgba(0, 0, 0, 0.3);
}


/* Checked — track */
.checkbox-container input:checked {
    background: #5865f2;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Checked — knob */
.checkbox-container input:checked::before {
    transform: translateX(18px);
    background: linear-gradient(145deg, #fff, #dce8ff);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.checkbox-container span { transition: color .3s ease; }
.checkbox-container input:checked + span { color: #adb8ff; }

/* =========================================
   4. Buttons
   ========================================= */
button.primary {
    margin-top: 24px;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, #5865f2, #4752c4);
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: .5px;
    cursor: pointer;
    position: relative;
    box-shadow: 0 4px 15px rgba(88, 101, 242, .4),
                0 0 10px rgba(255, 255, 255, .1),
                inset 0 0 5px rgba(255, 255, 255, .2);
    overflow: hidden;
    transition: all .3s;
}
button.primary:hover {
    background: linear-gradient(135deg, #4752c4, #3c45a5);
    box-shadow: 0 6px 22px rgba(88, 101, 242, .6),
                0 0 24px rgba(255, 255, 255, .2),
                inset 0 0 10px rgba(255, 255, 255, .3);
    transform: scale(1.03);
}
button.primary:active {
    transform: scale(0.96);
    box-shadow: inset 0 4px 6px rgba(0, 0, 0, .3);
}
button.primary.loading {
    color: #ffffffa2;
    pointer-events: none;
}

button.secondary {
    margin-top: 8px;
    padding: 6px 12px;
    background: #5865f2;
    color: #fff;
    font-size: 14px;
    border: none;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    width: auto;
    display: inline-block;
}
button.secondary::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(255, 255, 255, 0.1);
    opacity: 0;
    transition: opacity .3s;
}
button.secondary:hover::after { opacity: 1; }
button.secondary:active::after { background: rgba(255, 255, 255, 0.2); }

/* Danger button */
.btn-danger {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: .5px;
    cursor: pointer;
    transition: all .3s;
    margin-top: 12px;
    box-shadow: 0 4px 10px rgba(255, 0, 0, 0.3);
}
.btn-danger:hover {
    background: linear-gradient(135deg, #c0392b, #e74c3c);
    transform: scale(1.03);
}
.btn-danger:active {
    transform: scale(0.96);
    box-shadow: inset 0 4px 6px rgba(0, 0, 0, .3);
}

button:disabled,
.btn-danger:disabled {
    pointer-events: none;
    background: #3f4147;
    opacity: 0.7;
    transform: none;
    box-shadow: none;
}

/* Button container — equal-width buttons side by side */
.button-container {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    width: 100%;
}
.button-container button {
    flex: 1;
    width: 100%;
    margin: 0;
    padding: 14px;
    font-size: 16px;
    border-radius: 14px;
}
.button-container button.secondary {
    font-weight: 700;
}

/* File upload */
.file-upload-btn {
    margin-top: 8px;
    padding: 6px 12px;
    background: #5865f2;
    color: #fff;
    font-size: 14px;
    border-radius: 6px;
    display: inline-block;
    text-align: center;
    cursor: pointer;
}
input[type="file"] { display: none; }
.file-info {
    font-size: 12px;
    color: #adb8ff;
    margin-top: 4px;
    font-style: italic;
}

/* group-dm-spammer file input pattern */
.file-input-wrapper { margin-top: 18px; }
.file-label {
    display: inline-block;
    padding: 6px 12px;
    background: #5865f2;
    color: #fff;
    font-size: 14px;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 6px;
    font-weight: 400;
}
.file-name {
    display: inline-block;
    font-size: 12px;
    color: #adb8ff;
    margin-left: 8px;
    font-style: italic;
    vertical-align: middle;
}

/* =========================================
   5. Accordion / Details
   ========================================= */
details { margin-top: 18px; }
summary {
    list-style: none;
    padding-left: 20px;
    cursor: pointer;
    font-weight: 600;
    position: relative;
    margin-top: 0;
}
summary::-webkit-details-marker { display: none; }
summary::marker { content: none; }
summary::before {
    content: '▶';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: transform .3s ease;
}
details[open] > summary::before {
    transform: translateY(-50%) rotate(90deg);
}
.detail-content {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transform: translateY(-10px);
    padding-top: 0;
    transition: max-height .3s ease-out, opacity .2s ease-out, transform .3s ease-out, padding-top .3s ease-out;
    will-change: max-height, opacity, transform, padding-top;
}
details[open] .detail-content {
    max-height: 600px;
    opacity: 1;
    transform: translateY(0);
    padding-top: 5px;
    transition: max-height .3s ease-in, opacity .3s ease-in, transform .3s ease-in, padding-top .3s ease-in;
}

/* =========================================
   6. Logs
   ========================================= */
#log {
    margin-top: 20px;
    padding: 10px;
    height: 120px;
    overflow-y: auto;
    background: #1e1f22;
    border-radius: 10px;
    border: 1px solid #3f4147;
    font-family: monospace;
    font-size: 12px;
    resize: vertical;
    white-space: pre-wrap;
}

.log-entry-animation {
    animation: logEntryFadeIn .2s ease-out;
}

@keyframes logEntryFadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to   { opacity: 1; transform: translateY(0); }
}

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
    vertical-align: -4px;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =========================================
   7. Responsive
   ========================================= */
@media (max-width: 600px) {
    .card {
        padding: 16px;
        max-width: 100%;
        max-height: 100vh;
        border-radius: 10px;
    }
    h2 { font-size: 18px; margin-bottom: 16px; }
    label { font-size: 13px; margin-top: 12px; }
    input[type="text"],
    textarea,
    input[type="number"] { padding: 8px; font-size: 12px; }
    button.primary { padding: 12px; font-size: 16px; }
    button.secondary { padding: 8px 12px; font-size: 13px; }
    .row { flex-direction: column; align-items: stretch; }
    .row label { width: 100%; }
    .button-container { flex-direction: column; gap: 8px; }
    .btn-danger { width: 100%; }
    details summary { font-size: 13px; padding-left: 18px; }
    .checkbox-container { font-size: 13px; }
    #log { height: 80px; font-size: 11px; }
    .result-grid,
    .input-grid { grid-template-columns: 1fr; }
}