/* ================================================================
   STUDY-PLANNER.CSS  —  Premium Study Planner Tool
   ================================================================ */

/* ══════════════════════════════════════════════════════════════════
   INPUT CARD — wider than default tool-card
══════════════════════════════════════════════════════════════════ */
.sp-input-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: 2rem 2rem 1.8rem;
    max-width: 700px;
    margin: 0 auto;
}

.sp-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: .9rem;
    align-items: end;
}

@media (max-width: 700px) {
    .sp-form-grid {
        grid-template-columns: 1fr 1fr;
    }
    .sp-form-grid .sp-add-btn { grid-column: 1 / -1; }
}

@media (max-width: 420px) {
    .sp-form-grid { grid-template-columns: 1fr; }
}

.sp-field { display: flex; flex-direction: column; gap: .42rem; }

.sp-label {
    font-size: .82rem;
    font-weight: 700;
    color: var(--text-soft);
    letter-spacing: .02em;
    text-transform: uppercase;
}

.sp-input,
.sp-select {
    width: 100%;
    padding: .72rem 1rem;
    font-size: .97rem;
    font-family: inherit;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
    -webkit-appearance: none;
}

.sp-input:focus,
.sp-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3.5px rgba(79,70,229,.12);
}

.sp-input.sp-input--error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}

.sp-select-wrap {
    position: relative;
}

.sp-select-wrap::after {
    content: '';
    pointer-events: none;
    position: absolute;
    right: .9rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--text-muted);
}

/* ── Add button ── */
.sp-add-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    padding: .75rem 1.4rem;
    font-size: .95rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(79,70,229,.28);
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    align-self: flex-end;
}

.sp-add-btn:hover {
    opacity: .9;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(79,70,229,.36);
}

.sp-add-btn:active { transform: translateY(0); }

/* ── Input error message ── */
.sp-error-msg {
    display: none;
    font-size: .8rem;
    color: #ef4444;
    font-weight: 500;
    margin-top: .6rem;
}

.sp-error-msg.sp-error-msg--visible { display: block; }

/* ══════════════════════════════════════════════════════════════════
   PRIVACY NOTICE
══════════════════════════════════════════════════════════════════ */
.sp-privacy-notice {
    display: flex;
    align-items: center;
    gap: .6rem;
    max-width: 700px;
    margin: 1rem auto 0;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius);
    padding: .7rem 1.1rem;
    font-size: .84rem;
    color: #15803d;
    font-weight: 500;
}

.sp-privacy-icon { font-size: 1rem; flex-shrink: 0; }

/* ══════════════════════════════════════════════════════════════════
   TASK LIST SECTION
══════════════════════════════════════════════════════════════════ */
.sp-task-section {
    max-width: 700px;
    margin: 2rem auto 0;
}

.sp-task-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .8rem;
    margin-bottom: 1rem;
}

.sp-task-section-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: .5rem;
}

.sp-task-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 .5rem;
    background: var(--primary);
    color: #fff;
    font-size: .75rem;
    font-weight: 700;
    border-radius: 50px;
}

/* ── Action buttons (copy / download) ── */
.sp-actions {
    display: flex;
    gap: .6rem;
    flex-wrap: wrap;
}

.sp-btn-action {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .52rem 1.1rem;
    font-size: .87rem;
    font-weight: 700;
    border-radius: var(--radius);
    border: 1.5px solid var(--border);
    background: var(--card-bg);
    color: var(--text-soft);
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition),
                background var(--transition), box-shadow var(--transition),
                opacity var(--transition);
}

.sp-btn-action:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.sp-btn-action:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.sp-btn-action--primary {
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    border-color: transparent;
    color: #fff;
}

.sp-btn-action--primary:hover:not(:disabled) {
    border-color: transparent;
    color: #fff;
    background: linear-gradient(135deg, #4338ca, #0891b2);
    box-shadow: 0 6px 18px rgba(79,70,229,.32);
}

/* ── Empty state ── */
.sp-empty-state {
    text-align: center;
    padding: 3.5rem 1rem;
    color: var(--text-muted);
    border: 2px dashed var(--border);
    border-radius: var(--radius-xl);
    background: #fafbff;
}

.sp-empty-icon {
    font-size: 3rem;
    margin-bottom: .8rem;
    display: block;
    opacity: .5;
}

.sp-empty-state p {
    font-size: .95rem;
    margin: 0;
}

/* ── Task list ── */
.sp-task-list {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

/* ── Individual task card ── */
.sp-task-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.1rem;
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    animation: spTaskIn .35s cubic-bezier(.34,1.36,.64,1) both;
}

@keyframes spTaskIn {
    from { opacity: 0; transform: translateY(-12px) scale(.97); }
    to   { opacity: 1; transform: translateY(0)    scale(1); }
}

.sp-task-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    border-color: rgba(79,70,229,.18);
}

/* Priority left stripe */
.sp-task-item::before {
    content: '';
    display: block;
    width: 4px;
    min-height: 42px;
    border-radius: 99px;
    flex-shrink: 0;
    align-self: stretch;
}

.sp-task-item[data-priority="High"]::before   { background: #ef4444; }
.sp-task-item[data-priority="Medium"]::before { background: #f59e0b; }
.sp-task-item[data-priority="Low"]::before    { background: #10b981; }

/* Task body */
.sp-task-body { flex: 1; min-width: 0; }

.sp-task-subject {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: .2rem;
}

.sp-task-duration {
    font-size: .83rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: .3rem;
}

/* Priority badge */
.sp-priority-badge {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .28rem .8rem;
    border-radius: 50px;
    font-size: .77rem;
    font-weight: 700;
    letter-spacing: .03em;
    flex-shrink: 0;
    white-space: nowrap;
}

.sp-badge--high   { background: #fee2e2; color: #b91c1c; }
.sp-badge--medium { background: #fef9c3; color: #854d0e; }
.sp-badge--low    { background: #dcfce7; color: #15803d; }

/* Delete button */
.sp-delete-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: #94a3b8;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    flex-shrink: 0;
    transition: background var(--transition), color var(--transition);
}

.sp-delete-btn:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* ── Task order number ── */
.sp-task-num {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: .77rem;
    font-weight: 800;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════════
   TOAST NOTIFICATION
══════════════════════════════════════════════════════════════════ */
.sp-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1e293b;
    color: #fff;
    font-size: .9rem;
    font-weight: 600;
    padding: .75rem 1.5rem;
    border-radius: 50px;
    box-shadow: 0 8px 30px rgba(0,0,0,.25);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.sp-toast--visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════════ */
@media (max-width: 540px) {
    .sp-input-card { padding: 1.4rem 1.1rem; }
    .sp-task-item  { padding: .8rem .9rem; gap: .7rem; }
    .sp-actions    { gap: .45rem; }
}