/* Stremio‑inspired Theme for M3U/EPG Addon Configuration
   Palette tuned to resemble Stremio default (dark violet gradients & purple accent)
   ------------------------------------------------------------------------------ */

:root {
    /* Core Surfaces */
    --bg: #12131a;
    --bg-alt: #161823;
    --bg-panel: #1d1f2b;
    --bg-panel-alt: #262a39;
    --bg-soft: #202331;
    --overlay-bg: rgba(14,16,24,0.78);

    /* Borders / Lines */
    --border: #2d3140;
    --border-alt: #373c4e;
    --border-focus: #9e7dff;

    /* Typography */
    --text: #ffffff;
    --text-dim: #b3b8c7;
    --text-faint: #7d8494;
    --font-stack: system-ui,-apple-system,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Fira Sans",Arial,sans-serif;
    --mono-stack: ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

    /* Accent / Semantic */
    --accent: #8f61ff;
    --accent-accent2: #c58cff;
    --accent-hover: #a77dff;
    --accent-fade: rgba(143,97,255,0.18);
    --success: #3fbf9b;
    --success-hover: #30a884;
    --danger: #ff4d69;
    --danger-hover: #ea3d55;
    --warning: #ffb347;

    /* Radii & Shadows */
    --radius-xs: 3px;
    --radius-sm: 5px;
    --radius-md: 9px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 4px -1px rgba(0,0,0,0.5);
    --shadow-md: 0 6px 18px -6px rgba(0,0,0,0.55),0 2px 8px -2px rgba(0,0,0,0.35);
    --shadow-focus: 0 0 0 3px rgba(143,97,255,0.35);

    --transition: .18s cubic-bezier(.4,0,.2,1);

    /* Scrollbars */
    --scroll-track: #181a24;
    --scroll-thumb: #32384a;
    --scroll-thumb-hover: #40485d;
}

/* Global Reset */
* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-stack);
    background:
        radial-gradient(circle at 75% 10%, #1c1e2a 0%, #14151d 55%) fixed,
        linear-gradient(130deg,#181a25,#14151d 60%,#12131a);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    font-size: 16px;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Scrollbars */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scroll-thumb) var(--scroll-track);
}
*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
*::-webkit-scrollbar-track {
    background: var(--scroll-track);
}
*::-webkit-scrollbar-thumb {
    background: var(--scroll-thumb);
    border-radius: 40px;
    border: 2px solid var(--scroll-track);
}
*::-webkit-scrollbar-thumb:hover {
    background: var(--scroll-thumb-hover);
}

/* Header */
.site-header {
    padding: 2.6rem 1.4rem 2.2rem;
    background:
        linear-gradient(115deg,#30245b 0%,#4c3594 35%,#6d49d4 65%,#8f61ff 100%);
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
}

.site-header::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(at 15% 85%, rgba(197,140,255,0.18), transparent 70%),
        radial-gradient(at 85% 20%, rgba(143,97,255,0.25), transparent 65%);
    mix-blend-mode: overlay;
    pointer-events: none;
}

.site-header .inner {
    max-width: 1080px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.app-title {
    margin: 0 0 .55rem;
    font-size: clamp(2.05rem,3.5vw,2.7rem);
    font-weight: 600;
    letter-spacing: .5px;
    line-height: 1.05;
    color: #fff;
    text-shadow: 0 4px 18px rgba(0,0,0,0.35);
}

.subtitle {
    margin: 0 0 1.2rem;
    font-size: 1.05rem;
    font-weight: 400;
    color: #ecebff;
    max-width: 760px;
    opacity: .9;
}

/* Navigation */
.top-nav {
    display: flex;
    gap: .65rem;
    flex-wrap: wrap;
}

.nav-link {
    background: rgba(255,255,255,0.12);
    color: #fff;
    padding: .55rem .95rem;
    border-radius: var(--radius-sm);
    font-size: .78rem;
    letter-spacing: .6px;
    text-decoration: none;
    font-weight: 500;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.18);
    transition: var(--transition);
}
.nav-link:hover {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.3);
}

/* Layout */
.main-content {
    flex: 1 0 auto;
    max-width: 1080px;
    margin: 0 auto;
    padding: 2.2rem 1.4rem 3.2rem;
    display: grid;
    gap: 2rem;
}
.main-content.narrow { max-width: 830px; }

.card-grid {
    display: grid;
    gap: 1.6rem;
    grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
}

/* Panels / Cards */
.option-card,
.config-form,
.info-panel {
    background: linear-gradient(145deg,var(--bg-panel) 0%,var(--bg-panel-alt) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.4rem 1.55rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.option-card::before,
.config-form::before,
.info-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(125deg,rgba(255,255,255,0.03),rgba(255,255,255,0) 55%),
        radial-gradient(at 85% 15%,rgba(143,97,255,0.18),transparent 65%);
    opacity: .65;
    pointer-events: none;
}

.option-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.option-card h2 {
    margin: 0 0 .55rem;
    font-size: 1.12rem;
    font-weight: 600;
    letter-spacing: .4px;
}

.option-card p {
    margin: 0 0 1.1rem;
    font-size: .9rem;
    line-height: 1.35rem;
    color: var(--text-dim);
    flex-grow: 1;
}

.info-panel h3 {
    margin: 0 0 .85rem;
    font-size: .95rem;
    letter-spacing: .6px;
    font-weight: 600;
    text-transform: uppercase;
    color: #d7d9e5;
}

/* Feature / Step Lists */
.feature-list,
.steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: .45rem;
    font-size: .8rem;
    color: var(--text-dim);
}

.feature-list li,
.steps li {
    position: relative;
    padding-left: 1.05rem;
}
.feature-list li::before,
.steps li::before {
    content: "";
    width: .55rem;
    height: .55rem;
    background: linear-gradient(90deg,var(--accent),var(--accent-accent2));
    border-radius: 50%;
    position: absolute;
    left: 0;
    top: .35rem;
    box-shadow: 0 0 0 2px rgba(143,97,255,0.15);
}

.steps {
    counter-reset: step;
}
.steps li {
    padding-left: 1.85rem;
}
.steps li::before {
    counter-increment: step;
    content: counter(step);
    width: 1.25rem;
    height: 1.25rem;
    font-size: .65rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg,var(--accent) 0%,var(--accent-accent2) 100%);
    box-shadow: 0 0 0 3px var(--bg-panel);
    top: .15rem;
    color: #fff;
    border-radius: 999px;
}

/* Forms */
.config-form {
    display: flex;
    flex-direction: column;
    gap: 1.55rem;
}

legend {
    font-size: .72rem;
    letter-spacing: 1.3px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: .4rem;
}

fieldset {
    margin: 0;
    padding: 0;
    border: none;
    display: flex;
    flex-direction: column;
    gap: .9rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: .45rem;
}

.form-group.hidden { display: none; }

label {
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .4px;
    color: #e5e8f1;
}

.group-label {
    font-size: .65rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: .15rem;
}

input[type=text],
input[type=url],
input[type=password],
input[type=number],
textarea,
select {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    color: var(--text);
    padding: .65rem .7rem .68rem;
    font: 500 .8rem var(--font-stack);
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition);
    min-height: 2.5rem;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: var(--shadow-focus);
}

.hint {
    text-align: center;
    font-size: .64rem;
    letter-spacing: .4px;
    line-height: 1.1rem;
    color: var(--text-faint);
}

.checkbox-label {
    vertical-align: super;
}

.req { color: var(--danger); }

.bmc-btn-container {
    text-align: center;
}

.checkbox-line {
    display: inline-block;
    align-items: center;
    gap: .55rem;
    font-size: .78rem;
}
.checkbox-line input[type=checkbox],
.checkbox-line input[type=radio] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: .4rem;
}

.password-group .pwd-wrapper {
    display: flex;
    align-items: stretch;
    gap: .55rem;
}
.password-group input { flex: 1; }

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .9rem;
    margin-top: .4rem;
}
.form-actions .btn {
    flex: 1 1 200px;
}

/* Buttons */
.btn {
    --btn-bg: var(--accent);
    --btn-bg-hover: var(--accent-hover);
    --btn-color: #fff;
    appearance: none;
    border: 1px solid transparent;
    background: var(--btn-bg);
    color: var(--btn-color);
    font: 600 .8rem var(--font-stack);
    padding: .8rem 1.15rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    letter-spacing: .5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    line-height: 1;
    min-height: 2.6rem;
    transition: var(--transition);
    position: relative;
    isolation: isolate;
}

.btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(130deg,rgba(255,255,255,0.15),rgba(255,255,255,0) 60%);
    opacity: 0;
    mix-blend-mode: overlay;
    transition: var(--transition);
    border-radius: inherit;
}

.btn:hover::after { opacity: .9; }

.btn:hover {
    background: var(--btn-bg-hover);
    text-decoration: none;
}

.btn:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus);
}

.btn.secondary {
    --btn-bg: #303448;
    --btn-bg-hover: #3a4054;
}
.btn.subtle {
    --btn-bg: #262a39;
    --btn-bg-hover: #323746;
}
.btn.success {
    --btn-bg: var(--success);
    --btn-bg-hover: var(--success-hover);
}
.btn.danger {
    --btn-bg: var(--danger);
    --btn-bg-hover: var(--danger-hover);
}
.btn.ghost {
    --btn-bg: transparent;
    --btn-bg-hover: rgba(255,255,255,0.12);
    border: 1px solid var(--border-alt);
    color: var(--text-dim);
}
.btn.tiny {
    font-size: .65rem;
    padding: .45rem .6rem;
    min-height: unset;
    font-weight: 600;
    letter-spacing: .6px;
}
.btn.wide { width: 100%; }

/* Disabled state */
.btn[disabled],
.btn.locked,
.btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    background: #2b2f3f;
    border-color: #383d4e;
    color: #b0b5c4;
    filter: grayscale(20%);
}

/* Footer */
.site-footer {
    background: #101117;
    border-top: 1px solid #1d2029;
    padding: 1.5rem 1.2rem;
    text-align: center;
    margin-top: auto;
    color: var(--text-faint);
    font-size: .7rem;
    letter-spacing: .5px;
}

/* Overlay */
.overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(14px) saturate(150%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.2rem 1.4rem;
    z-index: 400;
    animation: fadeIn .3s ease;
}
.overlay.hidden { display: none; }

.overlay-box {
    width: min(700px,100%);
    background: linear-gradient(155deg,var(--bg-panel) 0%,var(--bg-panel-alt) 100%);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 1.95rem 1.85rem 2.25rem;
    box-shadow:
        0 22px 55px -18px rgba(0,0,0,0.6),
        0 0 0 1px rgba(255,255,255,0.03),
        0 0 0 4px rgba(143,97,255,0.07);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
    overflow: hidden;
}

.overlay-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(at 80% 18%,rgba(143,97,255,0.28),transparent 70%),
        radial-gradient(at 15% 85%,rgba(197,140,255,0.20),transparent 65%);
    opacity: .75;
    pointer-events: none;
    mix-blend-mode: overlay;
}

.overlay-header {
    display: flex;
    align-items: flex-end;
    gap: .85rem;
    flex-wrap: wrap;
}

.overlay-header h2 {
    margin: 0;
    font-size: 1.05rem;
    letter-spacing: .5px;
    font-weight: 600;
    color: #f5f3ff;
}

.overlay-sub {
    margin: 0;
    font-size: .7rem;
    letter-spacing: 1.2px;
    font-weight: 700;
    color: var(--accent-accent2);
    text-transform: uppercase;
}

.progress-track {
    background: #232736;
    border: 1px solid #303549;
    height: 12px;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg,#7043ff,#9a6cff,#c58cff);
    position: relative;
    border-radius: inherit;
    transition: width .55s cubic-bezier(.4,0,.2,1);
}

.progress-fill::after {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(60deg,rgba(255,255,255,0.25) 0 6px,rgba(255,255,255,0) 6px 12px);
    mix-blend-mode: overlay;
    animation: moveStripes 7s linear infinite;
    opacity: .5;
}

.status-log {
    background: #171922;
    border: 1px solid #2a2e3b;
    border-radius: 14px;
    padding: 1rem .95rem 1.05rem;
    font: 500 .64rem/1.15rem var(--mono-stack);
    color: #d0d5e3;
    max-height: 300px;
    overflow: auto;
    white-space: pre-wrap;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
}

.overlay-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
}
.overlay-actions .btn { flex: 1 1 210px; }

/* Utility */
.hidden { display: none !important; }

/* Responsive Tweaks */
@media (max-width: 780px) {
    .site-header { padding: 2.3rem 1.05rem 1.9rem; }
    .main-content { padding: 1.9rem 1.05rem 3rem; }
    .option-card,
    .config-form,
    .info-panel { padding: 1.25rem 1.1rem 1.35rem; }
    .overlay-box { padding: 1.55rem 1.35rem 1.8rem; border-radius: 20px; }
    .overlay-actions .btn { flex: 1 1 100%; }
    .nav-link { font-size: .7rem; }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes moveStripes {
    0% { background-position: 0 0; }
    100% { background-position: 360px 0; }
}