/* --- Değişkenler ve Temel Ayarlar --- */
:root {
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.4);
    --bg-dark: #020617;
    --glass: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.08);
    --danger: #ef4444;
}

/* Temel Sıfırlamalar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

body {
    background: var(--bg-dark);
    color: #f1f5f9;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    overflow: hidden;
    /* Masaüstünde taşmayı engeller */
}

/* --- Dekoratif Arka Planlar --- */
.cosmic-bg {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 10% 10%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(30, 64, 175, 0.08) 0%, transparent 40%);
    z-index: -2;
}

.light-orb {
    position: fixed;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 75%);
    filter: blur(100px);
    opacity: 0.12;
    z-index: -1;
    pointer-events: none;
    transition: transform 0.2s cubic-bezier(0.1, 0.5, 0.2, 1);
}

/* --- Ana Uygulama Konteyneri --- */
.app-core {
    width: 100%;
    max-width: 850px;
    height: 85vh;
    background: var(--glass);
    border: 1px solid var(--border);
    backdrop-filter: blur(35px);
    border-radius: 32px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: 0 40px 120px -20px rgba(0, 0, 0, 0.6);
}

/* Markalama ve İstatistikler */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.branding h1 {
    font-weight: 800;
    font-size: clamp(1.4rem, 4vw, 1.8rem);
    letter-spacing: -1.5px;
}

.branding h1 span {
    color: var(--accent);
    text-shadow: 0 0 15px var(--accent-glow);
}

.branding p {
    font-size: 0.75rem;
    color: #64748b;
    margin-top: 4px;
}

.badge {
    background: var(--accent);
    color: white;
    padding: 6px 14px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.75rem;
}

/* Giriş Alanı Kullanıcı Deneyimi (UX) */
.input-container form {
    display: flex;
    gap: 10px;
    background: rgba(0, 0, 0, 0.25);
    padding: 6px;
    border-radius: 18px;
    border: 1px solid var(--border);
    transition: 0.3s;
}

.input-container form:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.15);
}

input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: white;
    padding: 12px 15px;
    font-size: 1rem;
}

#addBtn {
    background: var(--accent);
    color: white;
    border: none;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#addBtn:hover {
    transform: scale(1.08);
    filter: brightness(1.2);
}

/* --- İçerik Düzeni --- */
.content-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    flex: 1;
    overflow: hidden;
}

/* Duyarlı (Responsive) Izgara Düzenlemesi */
@media (max-width: 650px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }

    .side-panel {
        display: none !important;
    }

    /* Mobilde yan panel gizlenir */
    .app-core {
        height: 90vh;
        padding: 20px;
    }

    body {
        overflow-y: auto;
    }
}

.task-viewer {
    overflow-y: auto;
    padding-right: 8px;
    position: relative;
}

.task-viewer::-webkit-scrollbar {
    width: 5px;
}

.task-viewer::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

/* Liste Ögesi Stilleri */
ul {
    list-style: none;
}

li {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    padding: 16px 20px;
    border-radius: 20px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: 0.3s;
    animation: fadeIn 0.4s ease forwards;
}

li:hover {
    border-color: var(--accent);
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.04);
}

li span {
    font-size: 0.95rem;
    font-weight: 400;
    color: #cbd5e1;
    line-height: 1.4;
}

li button {
    background: transparent;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 8px;
    transition: 0.3s;
    opacity: 0.4;
}

li button:hover {
    opacity: 1;
    transform: scale(1.2);
}

/* Yan Panel Arayüzü */
.side-panel {
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.progress-box {
    position: relative;
    width: 120px;
    height: 120px;
}

svg {
    transform: rotate(-90deg);
}

.rail {
    fill: none;
    stroke: var(--border);
    stroke-width: 6;
}

.fill {
    fill: none;
    stroke: var(--accent);
    stroke-width: 6;
    stroke-dasharray: 0 283;
    transition: 0.8s ease;
    stroke-linecap: round;
}

strong {
    position: absolute;
    top: 52%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent);
}

.status-info {
    font-size: 0.8rem;
    font-weight: 600;
    color: #64748b;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Boş Liste Durumu */
.empty-notif {
    text-align: center;
    opacity: 0.25;
    margin-top: 80px;
    display: none;
}

.empty-notif.show {
    display: block;
    animation: float 3s infinite ease-in-out;
}

.empty-notif i {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

/* Alt Bilgi (Footer) */
.bottom-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 20px;
}

.danger-btn {
    background: transparent;
    border: 1px solid #ef444433;
    color: var(--danger);
    padding: 10px 18px;
    border-radius: 14px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    transition: 0.3s;
}

.danger-btn:hover {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}

.quote {
    font-size: 0.8rem;
    color: #475569;
    font-style: italic;
    text-align: right;
    max-width: 50%;
}

/* --- Animasyonlar --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Sadece Ekran Okuyucular İçin (Erişilebilirlik) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}