/**
 * Global toolbar / action buttons (btn-primary, btn-secondary, year-filter-shell).
 * Loaded from includes/header.php on every page — do not keep these only in students.css.
 */
:root {
    --school-navy: #1e3a5f;
    --school-navy-dark: #16304d;
    --school-blue: #2563eb;
    --school-border: #d9e2ec;
}

.year-filter-shell,
.btn-primary,
.btn-secondary {
    position: relative;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 44px !important;
    padding: .78rem 1rem !important;
    border-radius: 14px !important;
    font-size: .92rem !important;
    font-weight: 800 !important;
    line-height: 1 !important;
    transition: all .18s ease !important;
    box-shadow: 0 10px 20px rgba(15, 23, 42, .07) !important;
    text-decoration: none !important;
    cursor: pointer;
    box-sizing: border-box;
}

.year-filter-shell {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%) !important;
    border: 1px solid var(--school-border, #d9e2ec) !important;
    color: #334155 !important;
}
.year-filter-shell:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(15, 23, 42, .10) !important;
}

.btn-primary {
    color: #ffffff !important;
    background: linear-gradient(135deg, var(--school-blue, #2563eb) 0%, var(--school-navy, #1e3a5f) 100%) !important;
    border: 1px solid transparent !important;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 28px rgba(37, 99, 235, .25) !important;
}

.btn-secondary {
    color: #334155 !important;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%) !important;
    border: 1px solid var(--school-border, #d9e2ec) !important;
}
.btn-secondary:hover {
    transform: translateY(-1px);
    border-color: #b9c6d5 !important;
    box-shadow: 0 14px 26px rgba(15, 23, 42, .10) !important;
}

.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: .55;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: 0 6px 12px rgba(15, 23, 42, .05) !important;
}

@media (max-width: 991px) {
    .year-filter-shell,
    .btn-primary,
    .btn-secondary {
        /* Full-width only inside toolbar rows that opt in via flex-col / w-full utilities.
           Keep default auto so sparse header actions (Subjects, etc.) stay compact. */
        justify-content: center;
    }
}