:root {
    --bg-start: #0f1a12;
    --bg-end:   #0a0f0a;
    --card-bg:  #0c120d;
    --input-bg: #0a0e0b;
    --border:   #c026d3;
    --accent:   #d946ef;
    --accent-dark: #b91cf5;
    --text:     #ffffff;
    --text-dim: #d1a8ff;
    --glow:     rgba(192, 38, 211, 0.25);
    --glow-strong: rgba(217, 70, 239, 0.4);
}

* { box-sizing: border-box; }

body {
    background: radial-gradient(ellipse at bottom, var(--bg-start) 0%, var(--bg-end) 100%);
    color: var(--text);
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 2rem;
    padding-top: 4rem;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Announcement Bar */
.announcement-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(44,1,44,0.45);
    color: white;
    text-align: center;
    padding: 0.75rem;
    z-index: 1000;
    font-size: 1rem;
    border-bottom: 1px solid rgba(75,2,85,0.18);
    backdrop-filter: blur(6px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.logo-text {
  font-size: 2.8rem;
  margin: 0;
  line-height: 1;
  text-align: center;
  font-weight: 800;

  background: linear-gradient(90deg, #d946ef, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;

  text-shadow: 0 0 15px rgba(217, 70, 239, 0.6);
}


/* Stars */
.stars {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
}
.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    opacity: 0.75;
    animation: twinkle 4.5s infinite alternate;
    box-shadow: 0 0 8px 2px rgba(255,255,255,0.5);
}
@keyframes twinkle {
    0% { opacity: 0.45; transform: scale(0.85); }
    100% { opacity: 0.95; transform: scale(1.15); }
}

/* Container & Header */
.container { max-width: 1400px; margin: 0 auto; }
.header-titles {
    text-align: center;
    margin-bottom: 2.5rem;
}
.header-titles h1 {
    font-size: 2.8rem;
    margin: 0;
    background: linear-gradient(90deg, var(--accent-dark), var(--accent), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
}
.menu-toggle {
    padding: 0.6rem 0.9rem;
    font-size: 1.6rem;
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    border-radius: 0.5rem;
}
.menu-toggle:hover {
    color: var(--accent);
    text-shadow: 0 0 12px var(--glow);
}

/* Controls */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2.5rem;
}
input[type="text"],
input[type="datetime-local"] {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    background: var(--input-bg);
    color: white;
    font-size: 1rem;
    min-width: 220px;
    flex: 1;
    max-width: 360px;
}
input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--glow);
    outline: none;
}
button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    min-width: 120px;
}
.bg-blue-600  { background: #2563eb; }
.bg-blue-600:hover { background: #1d4ed8; }

/* Goals Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.goal-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.25rem;
    box-shadow: 0 6px 20px rgba(0,0,0,0.4), 0 0 15px var(--glow);
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}
.goal-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.5), 0 0 25px var(--glow-strong);
}

.goal-card.achieved {
    border-color: #22c55e;
    background: rgba(34,197,94,0.08);
    box-shadow: 0 0 20px rgba(34,197,94,0.4);
}

.goal-text {
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
    word-break: break-word;
}

.goal-desc {
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
    font-style: italic;
}

.goal-meta {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.goal-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.goal-actions label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: #d1d5db;
}

.goal-actions input[type="checkbox"] {
    width: 1.3rem;
    height: 1.3rem;
    accent-color: #22c55e;
}

.delete-btn {
    background: #dc26264d;
    color: #fca5a5;
    border: none;
    padding: 0.4rem 0.9rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}
.delete-btn:hover {
    background: #dc2626;
    color: white;
}

/* Message (toast-like) */
.message-overlay {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(34,197,94,0.9);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    z-index: 2000;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s ease;
    max-width: 90%;
    text-align: center;
}
.message-overlay.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Celebration when achieved */
.goal-card.achieved::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(34,197,94,0.15) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse-glow 3s infinite alternate;
}
@keyframes pulse-glow {
    0% { opacity: 0.4; }
    100% { opacity: 0.8; }
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 3rem;
    left: -250px;
    width: 250px;
    height: calc(100% - 3rem);
    background: rgba(12,18,13,0.95);
    backdrop-filter: blur(18px);
    padding: 1rem 0;
    transition: left 0.3s ease;
    z-index: 999;
    border-right: 1px solid rgba(192,38,211,0.18);
    box-shadow: 0 0 25px rgba(192,38,211,0.12);
    display: flex;
    flex-direction: column;
}
.sidebar.open { left: 0; }
.sidebar a {
    color: rgba(255,255,255,0.94);
    padding: 0.9rem 1.2rem;
    text-decoration: none;
    display: block;
    transition: all 0.2s;
    margin: 0 0.6rem 0.2rem;
    border-radius: 8px;
}
.sidebar a:hover {
    background: rgba(192,38,211,0.14);
}
.sidebar-header {
    padding: 0.8rem 1rem;
    font-weight: bold;
    color: var(--accent);
    border-bottom: 1px solid rgba(192,38,211,0.3);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.sidebar-section-title {
    padding: 0.8rem 1rem;
    font-weight: bold;
    color: var(--accent);
    border-bottom: 1px solid rgba(192,38,211,0.15);
    margin: 1.2rem 0 0.6rem;
}
.sidebar-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    padding: 0.4rem;
    opacity: 0.8;
}
.sidebar-close:hover {
    color: var(--accent);
    opacity: 1;
}
.logout-link {
    color: #ff6b6b !important;
    font-weight: 500;
}
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.sidebar-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

/* Responsive */
@media (max-width: 768px) {
    .controls { flex-direction: column; align-items: center; }
    input, button { width: 100%; max-width: 360px; }
    .grid { grid-template-columns: 1fr; }
}