.youtube-sources-page {
    --source-red: #a9432e;
    --source-red-dark: #82311f;
}

.sources-main {
    padding: clamp(1.25rem, 4vw, 3rem) 0 5rem;
}

.sources-layout {
    display: grid;
    gap: 1.1rem;
    max-width: 1080px;
}

.sources-hero,
.sources-auth,
.source-add-panel,
.source-list-panel {
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 253, 248, 0.94);
    box-shadow: var(--shadow-soft);
}

.sources-hero {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    padding: clamp(1.35rem, 4vw, 2.3rem);
    overflow: hidden;
    background:
        linear-gradient(120deg, rgba(169, 67, 46, 0.12), transparent 48%),
        rgba(255, 253, 248, 0.96);
}

.sources-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--source-red-dark);
    font-size: 0.67rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.sources-kicker::before {
    width: 1.8rem;
    height: 2px;
    content: '';
    background: var(--source-red);
}

.sources-hero h1,
.sources-auth h2,
.source-panel-heading h2 {
    margin: 0.3rem 0 0;
    color: var(--ink);
}

.sources-hero h1 {
    font-size: clamp(2.5rem, 7vw, 5.2rem);
    line-height: 0.94;
}

.sources-status {
    max-width: 25rem;
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.82rem;
    font-weight: 700;
    text-align: right;
}

.sources-manager {
    display: grid;
    grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
    gap: 1.1rem;
}

.sources-auth,
.source-add-panel,
.source-list-panel {
    padding: clamp(1.25rem, 3vw, 1.8rem);
}

.sources-auth {
    display: grid;
    max-width: 620px;
    gap: 1.2rem;
}

.sources-login-form,
.channel-form {
    display: grid;
    gap: 1rem;
}

.sources-login-form {
    grid-template-columns: 1fr 1fr auto;
    align-items: end;
}

.sources-login-form label,
.channel-form label {
    display: grid;
    gap: 0.45rem;
    color: var(--ink-soft);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.channel-form label span {
    color: #77736c;
    font-size: 0.6rem;
    letter-spacing: 0.05em;
}

.sources-login-form input,
.channel-form input,
.channel-form textarea {
    width: 100%;
    min-height: 48px;
    padding: 0.72rem 0.8rem;
    color: var(--ink);
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    outline: 0;
    background: var(--paper-strong);
    font-size: 0.9rem;
    font-weight: 650;
    letter-spacing: 0;
    text-transform: none;
}

.channel-form textarea {
    min-height: 88px;
    resize: vertical;
    line-height: 1.45;
}

.sources-login-form input:focus,
.channel-form input:focus,
.channel-form textarea:focus {
    border-color: var(--source-red);
    box-shadow: 0 0 0 4px rgba(169, 67, 46, 0.1);
}

.sources-login-form button,
.source-primary-button {
    min-height: 48px;
    padding: 0.75rem 1rem;
    color: #fffdf8;
    border: 0;
    border-radius: 10px;
    background: var(--navy);
    font-weight: 800;
    cursor: pointer;
}

.sources-login-form button:hover,
.source-primary-button:hover {
    background: var(--dark-navy);
}

.source-primary-button {
    background: var(--source-red);
}

.source-primary-button:hover {
    background: var(--source-red-dark);
}

.source-primary-button:disabled,
.sources-login-form button:disabled {
    opacity: 0.62;
    cursor: wait;
}

.source-panel-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.source-panel-heading h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.source-text-button,
.channel-remove {
    min-height: 40px;
    padding: 0.55rem 0.7rem;
    color: var(--ink-soft);
    border: 1px solid var(--line);
    border-radius: 9px;
    background: transparent;
    font-size: 0.7rem;
    font-weight: 800;
    cursor: pointer;
}

.source-text-button:hover,
.channel-remove:hover {
    color: var(--danger);
    border-color: rgba(164, 71, 60, 0.35);
    background: rgba(164, 71, 60, 0.06);
}

.channel-count {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    flex: 0 0 auto;
    color: #fffdf8;
    border-radius: 50%;
    background: var(--navy);
    font-family: 'Space Grotesk', sans-serif;
}

.channel-list {
    display: grid;
    gap: 0.75rem;
}

.channel-card {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.85rem;
    padding: 0.9rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--paper-strong);
}

.channel-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #fff;
    border-radius: 12px;
    background: var(--source-red);
    font-size: 0.65rem;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.channel-copy {
    min-width: 0;
}

.channel-name {
    display: inline;
    color: var(--ink);
    font-family: 'Newsreader', Georgia, serif;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.15;
    text-decoration-color: rgba(169, 67, 46, 0.45);
    text-underline-offset: 0.18em;
}

.channel-name:hover {
    color: var(--source-red-dark);
}

.channel-handle,
.channel-notes,
.channel-added {
    margin: 0.2rem 0 0;
    overflow: hidden;
    color: var(--ink-soft);
    font-size: 0.72rem;
    line-height: 1.4;
    text-overflow: ellipsis;
}

.channel-handle {
    white-space: nowrap;
}

.channel-notes {
    color: #4d4b46;
}

.channel-added {
    font-size: 0.64rem;
}

.channel-empty {
    padding: 2.5rem 1rem;
    color: var(--ink-soft);
    border: 1px dashed var(--line-strong);
    border-radius: 14px;
    text-align: center;
}

.channel-empty strong {
    color: var(--ink);
    font-family: 'Newsreader', Georgia, serif;
    font-size: 1.35rem;
}

.channel-empty p,
.sources-error {
    margin: 0.35rem 0 0;
}

.sources-error {
    color: var(--danger);
    font-size: 0.78rem;
    font-weight: 750;
}

[hidden] {
    display: none !important;
}

@media (max-width: 820px) {
    .sources-manager {
        grid-template-columns: 1fr;
    }

    .sources-login-form {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .sources-main {
        padding-top: 0.8rem;
    }

    .sources-layout {
        width: min(100% - 1rem, 1080px);
    }

    .sources-hero {
        display: grid;
        gap: 0.9rem;
    }

    .sources-hero h1 {
        font-size: clamp(2.5rem, 14vw, 4rem);
    }

    .sources-status {
        text-align: left;
    }

    .channel-card {
        grid-template-columns: 38px minmax(0, 1fr);
    }

    .channel-mark {
        width: 38px;
        height: 38px;
    }

    .channel-remove {
        grid-column: 2;
        justify-self: start;
        min-height: 38px;
    }
}