:root {
    --bg: #05050a;
    --panel: rgba(255,255,255,.075);
    --panel-strong: rgba(255,255,255,.12);
    --text: #f8fafc;
    --muted: #94a3b8;
    --cyan: #22d3ee;
    --pink: #e879f9;
    --violet: #8b5cf6;
    --green: #34d399;
    --danger: #fb7185;
    --border: rgba(255,255,255,.14);
    --shadow: 0 24px 80px rgba(0,0,0,.5);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 50% 0%, rgba(34,211,238,.16), transparent 34%),
        radial-gradient(circle at 70% 20%, rgba(232,121,249,.12), transparent 28%),
        linear-gradient(135deg, #030305, #070713 48%, #020204);
    overflow-x: hidden;
}

.bg-glow {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 48% 32%, rgba(34,211,238,.16), transparent 22%),
        radial-gradient(circle at 54% 39%, rgba(232,121,249,.15), transparent 18%);
    filter: blur(14px);
    opacity: .9;
}

.login-shell,
.app-shell {
    position: relative;
    z-index: 2;
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(460px, 100%);
    padding: 34px;
    border: 1px solid var(--border);
    border-radius: 34px;
    background: linear-gradient(145deg, rgba(255,255,255,.13), rgba(255,255,255,.045));
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
}

.brand {
    display: grid;
    place-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.brand img {
    width: 210px;
    max-width: 80%;
    border-radius: 22px;
}

.brand-fallback {
    font-size: 54px;
    font-weight: 900;
    letter-spacing: -5px;
}

.brand-fallback b {
    color: var(--cyan);
    text-shadow: 0 0 22px var(--cyan), 0 0 36px var(--pink);
}

h1 {
    margin: 0 0 10px;
    font-size: clamp(30px, 7vw, 58px);
    line-height: .95;
    letter-spacing: -2px;
}

p {
    color: var(--muted);
    line-height: 1.6;
}

.error {
    padding: 12px 14px;
    border: 1px solid rgba(251,113,133,.5);
    background: rgba(251,113,133,.12);
    color: #fecdd3;
    border-radius: 16px;
    margin: 18px 0;
}

.login-form,
.composer form {
    display: grid;
    gap: 14px;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
    text-transform: lowercase;
}

input,
textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(0,0,0,.32);
    color: var(--text);
    outline: none;
    padding: 15px 16px;
    font-size: 16px;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

input:focus,
textarea:focus {
    border-color: rgba(34,211,238,.65);
    box-shadow: 0 0 0 4px rgba(34,211,238,.1);
}

button,
.logout {
    border: 0;
    cursor: pointer;
    text-decoration: none;
    color: #020617;
    font-weight: 900;
    padding: 15px 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--cyan), var(--pink));
    box-shadow: 0 14px 36px rgba(34,211,238,.2);
}

.app-shell {
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: 18px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0 26px;
}

.top-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-brand img {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 16px;
}

.top-brand strong {
    display: block;
    font-size: 24px;
    letter-spacing: -1px;
}

.top-brand span {
    display: block;
    color: var(--muted);
    font-size: 13px;
}

.logout {
    padding: 11px 14px;
    background: rgba(255,255,255,.08);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: none;
}

.hero {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 20px;
    align-items: end;
    margin-bottom: 18px;
}

.stats {
    display: flex;
    gap: 12px;
}

.stats div {
    min-width: 92px;
    padding: 16px;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: var(--panel);
    text-align: center;
}

.stats b {
    display: block;
    font-size: 30px;
}

.stats span {
    color: var(--muted);
    font-size: 12px;
}

.composer {
    padding: 18px;
    border-radius: 28px;
    border: 1px solid var(--border);
    background: linear-gradient(145deg, rgba(255,255,255,.11), rgba(255,255,255,.04));
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 180px 140px;
    gap: 12px;
    align-items: end;
}

.filters {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    overflow-x: auto;
}

.filter {
    background: rgba(255,255,255,.08);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: none;
    white-space: nowrap;
}

.filter.active {
    background: linear-gradient(135deg, var(--cyan), var(--pink));
    color: #020617;
}

.todo-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.todo {
    border: 1px solid var(--border);
    border-radius: 28px;
    background: rgba(255,255,255,.07);
    overflow: hidden;
    backdrop-filter: blur(16px);
}

.todo.done {
    opacity: .62;
}

.todo.done .todo-desc {
    text-decoration: line-through;
    color: var(--muted);
}

.todo-head {
    padding: 18px;
    display: grid;
    gap: 12px;
}

.todo-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--border);
    background: rgba(0,0,0,.26);
    color: var(--text);
    border-radius: 999px;
    padding: 7px 10px;
    font-size: 12px;
}

.dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 16px currentColor;
}

.todo-desc {
    white-space: pre-wrap;
    line-height: 1.55;
    font-size: 17px;
}

.todo-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.todo-actions button {
    padding: 10px 12px;
    border-radius: 14px;
    font-size: 13px;
}

.secondary {
    background: rgba(255,255,255,.08);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: none;
}

.danger {
    background: rgba(251,113,133,.14);
    color: #fecdd3;
    border: 1px solid rgba(251,113,133,.35);
    box-shadow: none;
}

.followups {
    border-top: 1px solid var(--border);
    padding: 14px 18px 18px;
    background: rgba(0,0,0,.18);
}

.followup-form {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.followup-form input {
    border-radius: 14px;
    padding: 12px;
}

.followup-form button {
    padding: 11px 13px;
    border-radius: 14px;
}

.note {
    padding: 10px 0;
    border-top: 1px solid rgba(255,255,255,.08);
}

.note:first-of-type {
    border-top: 0;
}

.note p {
    margin: 0;
    color: var(--text);
}

.note small {
    color: var(--muted);
}

.empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: var(--muted);
    border: 1px dashed var(--border);
    border-radius: 28px;
}

@media (max-width: 820px) {
    .hero,
    .form-grid,
    .todo-list {
        grid-template-columns: 1fr;
    }

    .hero {
        align-items: stretch;
    }

    .stats {
        width: 100%;
    }

    .stats div {
        flex: 1;
    }

    .composer,
    .login-card {
        border-radius: 24px;
    }

    h1 {
        font-size: 42px;
    }
}