@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --bg-main: #050510;
    --neon-cyan: #00d2ff;
    --neon-blue: #3a7bd5;
    --neon-purple: #d500f9;
    --neon-red: #ff3366;
    --neon-green: #39ff14;
    --neon-yellow: #ffeb3b;
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --text-main: #ffffff;
    --text-muted: #8892b0;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; }

body {
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(0, 210, 255, 0.1), transparent 45%),
        radial-gradient(circle at 85% 30%, rgba(213, 0, 249, 0.08), transparent 45%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 120px 20px 80px 20px; 
    overflow-x: hidden;
}

/* HEADER & FOOTER */
.portfolio-nav {
    position: fixed; top: 0; left: 0; width: 100%; height: 70px;
    background: rgba(5, 5, 16, 0.65); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border); display: flex; justify-content: space-between;
    align-items: center; padding: 0 10%; z-index: 1000;
}
.nav-logo { font-size: 1.5rem; font-weight: 700; color: var(--text-main); letter-spacing: 1px; }
.nav-logo span { color: var(--neon-cyan); }
.nav-links { list-style: none; display: flex; align-items: center; gap: 30px; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: color 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--neon-cyan); text-shadow: 0 0 10px rgba(0, 210, 255, 0.5); }
.nav-install-btn {
    display: none; background: transparent; border: 1px solid var(--neon-cyan); color: var(--neon-cyan);
    padding: 6px 16px; border-radius: 50px; cursor: pointer; font-weight: 500; font-size: 0.85rem; transition: all 0.3s ease;
}
.nav-install-btn:hover { background: var(--neon-cyan); color: #000; box-shadow: 0 0 15px var(--neon-cyan); }

.portfolio-footer {
    width: 100%; max-width: 900px; margin-top: 40px; border-top: 1px solid var(--glass-border);
    padding-top: 20px; display: flex; justify-content: space-between; align-items: center;
    color: var(--text-muted); font-size: 0.85rem;
}
.portfolio-link { color: var(--neon-cyan); text-decoration: none; font-weight: 500; transition: all 0.3s ease; }
.portfolio-link:hover { text-shadow: 0 0 8px var(--neon-cyan); color: #fff; }

/* MAIN APP WRAPPER */
.app-wrapper {
    width: 100%; max-width: 1000px; background: var(--glass-bg); backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border); border-radius: 24px; padding: 40px; box-shadow: var(--glass-shadow);
}
.header { text-align: center; margin-bottom: 30px; }
.neon-heading {
    font-size: 2.8rem; font-weight: 700;
    background: linear-gradient(to right, var(--neon-cyan), var(--neon-blue));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(0, 210, 255, 0.3);
}
.subtitle { color: var(--text-muted); font-size: 0.9rem; margin-top: 5px; }

/* INPUT SECTION V3 */
.expanded-input { display: flex; flex-direction: column; gap: 15px; margin-bottom: 30px; }
#taskInput {
    width: 100%; background: rgba(0, 0, 0, 0.4); border: 1px solid var(--glass-border);
    padding: 15px 25px; border-radius: 12px; color: var(--text-main); font-size: 16px; outline: none; transition: 0.3s;
}
#taskInput:focus { border-color: var(--neon-cyan); box-shadow: 0 0 15px rgba(0, 210, 255, 0.15); }
.filter-group { display: flex; gap: 10px; flex-wrap: wrap; justify-content: space-between; }

/* --- Glass Input Upgrade For Date & Dropdowns --- */
.glass-input {
    background: rgba(0, 0, 0, 0.5); 
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 12px 15px;
    border-radius: 8px;
    outline: none;
    font-size: 0.9rem;
    cursor: pointer;
    min-width: 130px;
    transition: all 0.3s ease;
}

/* Jab input par focus ho toh solid indicator border chamke */
.glass-input:focus {
    border-color: var(--neon-purple);
    box-shadow: 0 0 10px rgba(213, 0, 249, 0.3);
}

/* Mobile placeholder visibility issue fix */
#taskDueDate {
    position: relative;
    color-scheme: dark; 
}

/* Mobile browsers ke default hidden selectors ko design dena */
#taskDueDate::-webkit-calendar-picker-indicator {
    cursor: pointer;
    filter: invert(1);
    opacity: 0.8;
}

.neo-btn {
    background: linear-gradient(45deg, var(--neon-cyan), var(--neon-blue)); color: #050510;
    border: none; padding: 0 30px; font-size: 24px; font-weight: 700; border-radius: 12px; cursor: pointer; transition: 0.4s;
    flex-grow: 1;
}
.neo-btn:hover { transform: scale(1.02); box-shadow: 0 0 20px rgba(0, 210, 255, 0.5); color: #fff; }

/* BOARDS */
.boards-container { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.board { background: rgba(0, 0, 0, 0.2); border: 2px solid transparent; border-radius: 16px; padding: 20px; transition: 0.3s; }
.board-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; border-bottom: 1px solid var(--glass-border); padding-bottom: 10px; }
.board-title { font-size: 1.1rem; font-weight: 600; color: var(--neon-cyan); }

/* DRAG & DROP GLOW */
.board.drag-over { border-color: var(--neon-purple); background: rgba(213, 0, 249, 0.05); box-shadow: inset 0 0 15px rgba(213, 0, 249, 0.2); }
.task-item.dragging { opacity: 0.4; border: 1px dashed var(--neon-cyan); transform: scale(0.98); }

/* TASK CARDS V3 */
.task-list { list-style: none; display: flex; flex-direction: column; gap: 15px; min-height: 50px; }
.task-item {
    background: rgba(255, 255, 255, 0.02); border: 1px solid var(--glass-border); padding: 15px;
    border-radius: 12px; display: flex; flex-direction: column; gap: 10px; transition: all 0.3s ease;
    cursor: grab; /* Drag UI cursor */
}
.task-item:active { cursor: grabbing; }
.task-item:hover { transform: translateY(-2px); border-color: rgba(0, 210, 255, 0.2); background: rgba(255, 255, 255, 0.04); }

.task-top-row { display: flex; justify-content: space-between; align-items: flex-start; }
.task-text { font-size: 1rem; color: var(--text-main); font-weight: 500; word-break: break-word; }

/* BADGES (Category & Priority) */
.badge-container { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 5px; }
.badge { font-size: 0.7rem; padding: 3px 8px; border-radius: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-cat { background: rgba(255,255,255,0.1); color: var(--text-muted); }

/* PRIORITY COLORS */
.priority-High { border-left: 4px solid var(--neon-red); }
.badge-High { color: var(--neon-red); background: rgba(255, 51, 102, 0.1); }
.priority-Medium { border-left: 4px solid var(--neon-yellow); }
.badge-Medium { color: var(--neon-yellow); background: rgba(255, 235, 59, 0.1); }
.priority-Low { border-left: 4px solid var(--neon-green); }
.badge-Low { color: var(--neon-green); background: rgba(57, 255, 20, 0.1); }

/* COUNTDOWN TEXT */
.countdown { font-size: 0.8rem; color: var(--neon-cyan); display: flex; align-items: center; gap: 5px; }
.overdue { color: var(--neon-red); animation: blink 1s infinite alternate; }
@keyframes blink { from { opacity: 1; } to { opacity: 0.5; } }

/* BUTTONS */
.task-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 5px; border-top: 1px solid var(--glass-border); padding-top: 10px; }
.task-actions button {
    background: rgba(255, 255, 255, 0.03); border: 1px solid var(--glass-border); font-size: 14px;
    cursor: pointer; width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: 0.3s;
}
.task-actions button[onclick*="toggleTask"]:hover { background: rgba(57, 255, 20, 0.1); border-color: var(--neon-green); transform: scale(1.1); }
.task-actions button[onclick*="editTask"]:hover { background: rgba(213, 0, 249, 0.1); border-color: var(--neon-purple); transform: scale(1.1); }
.task-actions button[onclick*="deleteTask"]:hover { background: rgba(255, 51, 102, 0.1); border-color: var(--neon-red); transform: scale(1.1); }

.clear-btn { background: transparent; color: var(--neon-red); border: 1px solid rgba(255, 51, 102, 0.4); padding: 5px 12px; border-radius: 8px; cursor: pointer; font-size: 0.75rem; transition: 0.3s; }
.clear-btn:hover { background: var(--neon-red); color: #fff; box-shadow: 0 0 15px var(--neon-red); }

/* DONE LIST */
#completedList .task-item { opacity: 0.5; border-left: 4px solid #555; }
#completedList .task-text { text-decoration: line-through; color: var(--text-muted); }
#completedList .countdown { display: none; } /* Hide countdown if done */

/* MOBILE */
@media (max-width: 768px) {
    .boards-container { grid-template-columns: 1fr; }
    .filter-group { flex-direction: column; }
    .neo-btn { padding: 10px; }
}